Topcon Super DM

35mm MF film SLR camera

Specification

Production details:
Announced:1973
System: Topcon (1957)
Format:
Maximum format:35mm full frame
Film type:135 cartridge-loaded film
Mount and Flange focal distance:Topcon [44.7mm]
Shutter:
Type:Focal-plane
Model:Mechanical
Speeds:1 - 1/1000 + B
Exposure:
Exposure metering:Through-the-lens (TTL), open-aperture
Exposure modes:Manual
Physical characteristics:
Weight:<No data>
Dimensions:<No data>

Manufacturer description #1

Topcon's Motor-Camera isn't only for professionals.

Every professional photographer knows the benefits of a motorized camera. Because he's probably lost some great shots while manually advancing his film. Until now, however, motor accessories have been complex, expensive, bulky and built for highly specialized applications.

That's why we've created the Topcon Supreme, the Motor-Camera. The first system designed with motor-drive as an integral part of the camera itself. A truly light, compact, easy-to-use camera in a price range that every demanding photographer is able to afford. Now you can catch the unexpected shot that only a motor-drive camera can give you.

Here's how it works. The motor is beautifully designed right into the camera actually forming the grip. It automatically forwards the film and operates the shutter, mirror and frame counter - so you're ready for your next exposure. Your eye never leaves the viewfinder or your subject.

The camera itself is an extremely rugged, highly sophisticated piece of equipment. It comes with a Topcor f/1.4 50mm multi-coated standard lens and has a 1/1000 shutter speed. The aperture setting is seen right in the new CC Penta-prism finder, as is the exposure indicator. Light is measured on the back of the mirror, through minute slits, for superb CdS exposure accuracy. And is automatically balanced for center-weighted or average readings according to subject.

The system is not only simple and precise - it's complete. With a full range of accessories including 21 lenses. The camera is even available without the motor. And it's backed by Paillard, the people who distribute Hasselblad and Bolex. So the finest service organization in America stands behind it.

This is the system you've been waiting for. Once you've used it, you'll never go back to a non-motorized camera again. The Topcon Supreme. It will probably make other 35mm SLR's obsolete.

Manufacturer description #2

You're always ready, for the decisive moment...

Because the motorized Auto Winder prepares everything for the next shot 1/2 second after you lift your finger from the shutter release button. And, it lets you keep your eye glued to the finder eyepiece, following up your subject, even during auto-winding action. In other words, you're always ready for the decisive moment because the Auto Winder takes care of everything automatically. (Detachable for manual operations.)

The new CC (Control Center) Pentaprism Finder also helps by showing the actual aperture setting on the ring, plus exposure indicator with visual over- and under- exposure adjustments and a fast split-image rangefinder spot, for speedy centralized shooting controls. (Exchangeable with waist-level finders.)

Finally, the newly-developed multi-coated 50mm f/1.4 RE GN Topcor M lens automatically sets the f/stop for the distance focused, by simply locking the guide number (GN) into the lens. Flash-Matic operation means speedier shooting in flash photography, without flash calculations, too.

Plenty of time-proven quality features, because...

The new TOPCON Super DM retains all those good features that we gave you in the TOPCON Super D and the RE Super cameras.

Finder and focusing screen are easily exchanged. A top deck exposure indicator takes over automatically when waist-level finders are attached and also has over- and under-exposure adjustments. Camera back is detachable for using bulk film magazines. Built-in motor drive shaft only requires connection of the electric motor drive, without special body modifications. Spring-loaded preview lever shows the actual depth of field in the finder. And, the mirror can also be locked up.

But, on top of all these wonderful, time-proven features, the original Thru-The-Lens Mirror-Meter System continues as the ultimate system for exposure-perfection. It's the only system that works on shutter-priority or aperture-priority, as you like, with possibilities for personalized adjustments. In fact, it's the only system designed to satisfy your exacting requirements, not only now but in the future, when they may be even more exacting.

Born with a complete system of photography...

And, it's a system so extensive and versatile that you will never be able to outgrow it.

Top quality TOPCOR lenses include 16 general purpos lenses, from super wide-angle 20mm to telephoto 500mm, including zoom, plus four special macro lenses for close-up work. And, the standard f/1.4 lens is multilayer anti-reflection coated for improved light transmission and reduction of contrast-killing flare.

TOPCOR lenses have always been synonymous with the finest in optical quality and the complete range of lenses available for the Super OM carryon in the same tradition.

Versatile TOPCON accessories are available for all types of photographic work... or, close-ups, macrophotography, photomicrography, slide-copying, reproduction and motorized operations, with standards meeting the highest professional requirements. Included are two waist-level finders, with low and high magnifications; nine focusing screens; eyepiece adapter; angle view finder; magnifier; extension tube set; bellows; macro-stand attachment; automatic extension tube; slide-copying attachment; two microscope attachments, also for low and high magnifications; copying kit; complete electric motor drive system, including wireless transmitter and receiver set; incident light receptor; gray slide; meter-lite; three close-up attachment lenses; seven eyepiece correction lenses; flash gun; reverse-adapter ring; RE Auto-Ring, etc., etc.

Manufacturer description #3

The TOPCON Super DM, like its famous predecessors, is one of the most advanced and versatile single lens reflex cameras designed for professional use today.

Like the very first LORD camera that was developed by TOPCON, more than 35 years ago, when hardly any cameras were being manufactured in this country, TOPCON has always been in the forefront of technical developments in this field.

Besides the famous TOPCON Thru-The-Lens Mirror-Meter System, which was introduced in 1962, as an integral part of the camera, for speedily setting correct exposures without loss of fast handling abiIity or buiIt-in single lens reflex versatility, the Super DM also has one of the world's most advanced film winding and shutter charging systems, or the TOPCON Auto Winder, which was first introduced in 1972.

The Auto Winder is also an integral part of the camera, the same as the Thru-The-Lens Mirror-Meter System, but, at the same time, it is completely detachable and, therefore, lets you retain the fuII versatility of the Super DM system.

Motorized Auto-Winding is the modern way of taking pictures, without adding much in bulk and weight to the camera, or even changing your method of operation. You're always ready for the decisive moment with the Super DM because the Auto Winder takes care of everything and prepares you for the next shot, 1/2 second after lifting your finger from the shutter release button of the camera.

The most important asset of the Auto Winder is the way that you can keep your eye glued to the finder eyepiece all the time, even during film winding operations. In manual winding, you have to shift your eye, ever so slightly, which means that you have to go back to finding the subject once more when the film has been advanced, which is no way for a professional to work, especially with a fast-moving subject. Use the Super DM, with its Auto Winder, and you can keep track of the subject all the time and not lose a decisive moment.

With or without the Auto Winder, the Super OM is a real "system" camera, with a wonderful System of Photography built around it.

Strategically Located Thru-The-Lens Mirror-Meter

The Mirror-Meter, or TOPCON's meter behind the reflex mirror, is located behind the lens mount and, therefore, the lens, before the film plane and below the focusing screen and finder, in the only ideal location throughout the single lens reflex camera for accurately measuring the incoming Iight reflected back from the subject.

Its strategic location means that the Mirror-Meter intercepts the reflected light from the subject, as it comes through the lens, before it is affected by reflections and/or passage through other glasses (such as focusing screen and finder). Because of its distance from the finder eyepiece, and, in combination with the patented full aperture exposure reading system, it is also the location least affected by extraneous eyepiece light.

It is also the only location which lets you change focusing screens and finders without affecting the exposure reading. Using non-standard focusing screens, with clear plain glass or coarser ground glass, has absolutely no affect on the reading, because the Iight used for exposure measurements does not go through these glass parts, as would be the case with CdS photocells in the finder housing.

Finally, exposure measurements are very accurate because it's the exact Iight that is used for taking the picture, when the reflex mirror swings up, out of the optical path.

Unique Mirror-Meter - For Integrated Measurements Based on the Actual Lens-Lite

The TOPCON Mirror-Meter is actually a reflex mirror with an exposure meter layer attached behind it, as an integral part of the mirror. The mirror surface has a pattern of very narrow non-siIvered slits which let the light hitting the mirror surface pass through to the compound CdS cells in the rear layer.

Thus, the Mirror-Meter measures the true Lens-Lite, as it enters the camera body, no matter what the lens, or whether the lens is covered by filters or attachment lenses, or even if the lens is extended with bellows or extension tubes, or even without the lens, as when the body is attached directly to the microscope.

The Mirror-Meter slit pattern has been specially designed to give an ideal coverage of the field seen in the finder, for providing speedy and accurate integrated exposure measurements of the full finder area. At the same time, since the slits are only 0.05mm or 0.002 in. in width, they neither obstruct the focusing screen view nor make view-focusing difficult. Furthermore, only 7 percent of the light hitting the mirror surface is let through to the CdS cell layer and, therefore, the screen is not darkened at all, even in low-Iight situations.

The patented compound CdS cells of the Mirror-Meter have also been designed to cover both high and low sensitivity ranges automatically, without any switching.

Patented Mirror-Meter System has Great Versatility

Electricity consumption of the patented Mirror-Meter circuit is very small, or only 0.1 milliampere per hour, which means that it will take, at least, 90 days to completely drain its battery. However, it's simply not possible to drain the battery so quickly because simply covering the lens has the same effect as switching off the meter.

In actual practice, the battery should last, at least, one full year, so make it a practice to exchange it annually.

Full aperture exposure measurement was also introduced by TOPCON in 1962 and this patented system is stiII one of the best in the world, being the key to speedy through-the-Iens exposure measurements with the Super DM. In other words, you don't have to close down the lens diaphragm for taking a reading and, consequently, darken the finder, which could make it difficult to view-focus. You simply take the measurement at the maximum lens opening and enjoy a very bright finder view which is ideal for view-focusing and exposure measurements.

Quick lens exchanges are possible with the Super DM because a special automatic lens speed compensation system takes care of any difference in lens speeds. You don't have to manually adjust the camera's coupling system for differences in lens speeds which is not only time-consuming but can be forgotten, in the rush of exchanging lenses. In other words, the Super DM takes care of these differences even if you forget about them. Furthermore, the Mirror-Meter is cross-coupled to both lens diaphragm and shutter and, therefore, exposure setting can be made by adjusting either aperture ring or shutter speed dial, or both. In other words, it's shutter-priority or aperture-priority, depending on how you want to use it.

Centralized Controls in Finder for the speediest shooting

The standard finder of the Super DM is the CC (control center) Pentaprism finder which hangs over the lens mount in the front end and gives you a direct view of the actual aperture setting, shown over the finder area, and the match-point indicator, below the finder area, where they don't get in the way of view-focusing. Shutter-priority full aperture light-metering means that you only have to adjust the aperture ring to set the correct exposure and exposure measurements are fast and simple because the exposure indicator swings swiftly and evenly (not short, jerky sweeps in bright light and slow, large movements in low light), as well as moving in the same direction as the aperture ring adjustment. And the actual aperture setting is promptly seen above the finder area, as the aperture ring itself is being viewed all the time.

Full aperture view-focusing means that you don't have to stop down the lens diaphragm and thus lose precious seconds or view-focus with a darkened finder field, which can slow you down, too.

Focusing Screens to Match your Choice of Lens and Type of Work

Besides the standard No. 1 focusing screen (which is usually supplied with the Super DM), there are eight other focusing screens which can be used interchangeably, for matching the lens being used, or for specific picture-taking situations or because of personal preferences.

Simple, Speedy Exchanging of Finders and Screens

All professional class single lens reflexes ideally must permit full exchange of finders and focusing screens because this feature is one of its strongest forte. And such exchanges should be simple and easy, without requiring any special tools or experience, which is the way it is with the Super DM.

Simple depress the finder catch and push the finder out towards the back cover side, which will detach it. Next, pull up the focusing screen, by Iifting the catch extending rearwards from the focusing screen frame and it will also become detached. Attachment of focusing screen and finder is in the reverse order of the above and just as simple without any special care being required.

Finders to Match your Work

Two types of waist-level finders are available for exchange with the standard CC Pentaprism finder. The standard waist-level finder is a low magnification finder which shows the full screen area at life-size, with the magnifier in place, and with the standard lens.

The high magnification waist-level finder, on the other hand, enlarges the full focusing area 6.5x and has an adjustable eyepiece ring for increasing focusing accuracy.

The accessory magnifier can be used with the latter finder for even greater precision in focusing, as the central finder area is enlarged 16x, in this case.

Waist-level finders are generally valuable for use in close-ups, macrophotography, reproduction work, photomicrography and for shots at a low or unusual angle.

Shutter Release Lock

Turning the shutter release locking lever in the counter-clockwise direction locks the shutter release. button and prevents accidental releases. The shutter release lock can also be used for time exposures, with the shutter speed dial set to B (bulb) and the lever revolved at the same time as the shutter button is depressed, which will keep the shutter locked "open". Turning the lever in the clockwise direction will unlock the shutter release button.

Shutter Speed Dial

Has eleven speed settings 1, 1/2, 1/4, 1/8, 1/15, 1/30, 1/60, 1/125, 1/250, 1/500 and 1/1000 second, plus B (bulb). Electronic flash units can be synched at 1/60 second and slower shutter speed settings.

Film Speed Indicator

Has twin windows on shutter speed dial face for simultaneously showing ASA and DIN film speeds, with the former from ASA 25 to 1600 and the latter from DIN 15 to 33.

Rewinding

The rewind crank, on the rewind knob, is unfolded for use in effortless rewinding of the exposed film, after depressing the rewind button on the camera base. The rewind knob floats up for easier rewinding operations.

Self-Timer

Revolving the self-timer lever 180 deg. downwards charges the self-timer. Pressing the self-timer button activates the self-timer and after a 10 second delay releases the shutter. The self-timer can be set for delays from 5 to 10 seconds, by setting the self-timer lever at intermediate, positions.

The self-timer is easily bypassed by depressing the shutter release button in the usual manner.

Mirror Lock-Up

Rotating the mirror lock-up lever in the counter-clockwise direction locks the reflex mirror "up"; rotating in the opposite direction lowers the mirror to normal viewing position.

Mirror lock-up is recommended when camera vibrations must be reduced to the absolute minimum, as, for example, for shooting consecutive frames with the electric motor drive, for shooting with extra-long telephotos, for shooting ultra close-ups, or in photomicrography.

Flash Socket

A single f lash socket is available on the left-hand side of the camera body and used for connection of the flash cord from all flash units, as well as electronic flash units.

Depth of Field Previewing

The push-release depth of field lever stops down the lens diaphragm to the preselected aperture and lets you preview the actual depth of field on the true ground-glass standard focusing screen. Releasing pressure on the lever will let the aperture open up once more. This professional feature is TOPCON-originated and found only on professional class cameras.

TOPCON Bayonet Mount

The precision TOPCON bayonet mount, similiar to the Exakta type bayonet mount, lets you make lens exchanges speedily, simply and positively.

Exchanging Finders

Finders are exchanged by simply pressing the finder catch button, between finder and shutter speed dial, and pushing the finder out towards the back cover side. Finders are attached by simply gliding them in until they click into place.

Mirror-Meter

The CdS exposure meter system is built into the layer behind the reflex mirror, with 0.05mm (0.002 in.) unsilvered slits in the mirror surface letting 7 percent of the light hitting the mirror surface pass through to the meter, without darkening or obstructing the focusing screen. The slit pattern is designed to give an ideal average reading for the full subject area seen in the focusing screen.

CC Pentaprism Finder

The standard CC (control center) Pentaprism finder overhangs the lens mount and shows a direct view of the aperture setting to be used for taking the picture, as well as the exposure indicator and index for exposure measurement. Since the actual aperture setting on the ring is viewed, all changes made in the setting are directly viewed in the finder, thus facilitating quick changes in the aperture setting for the shutter-priority exposure system.

Micromotor Chamber

The micromotor chamber protruding on the right-hand side of the camera body contains the motor drive mechanism of the Auto Winder and also serves as a convenient hand grip for right-hand support of the camera. Attachment of the Auto Winder to the camera body automatically couples the micromotor to the shutter release button on the camera body so that simply depressing the shutter button activates the Auto Winder.

Built-in Versatility Makes the System Camera

The Super DM has so much built-in versatiIity and such an extensive range of top quality accessories that they must be used to really appreciate the extent to which our engineers have gone to provide you with a real "System" camera.

It's one of those real rare birds, which comes apart so extensively that you can make real changes in the camera system. The finder is exchangeable, the focusing screen isexchangeable, the camera back is detachable, equipment can be added below the base and lenses and accessories can be exchanged and/or added up front, which means that you can make your own set-up for the type of work you are interested in.

Born with a Complete System of Photography

Besides a full range of valuable, top quality TOPCOR lenses, in the most-used focal lengths, the Super DM has been born with a complete system of photography, which is so extensive and versatile that you will never be able to outgrow it. Versatile TOPCON accessories are available for various fields of photography - or, close-ups, macrophotography, photomicrography, slide-copying, reproduction and motorized operations, as well as accessories designed to improve your work in these various fields.

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John Fllnn
John Fllnn
7 months ago

Accurate description of an exquisite camera that not many photographers know about. If they are given a CLA and perhaps a new shutter they are well worth the expense. The Topcor RE Auto lenses are phenomenal. Here are their specs… https://www.dyxum.com/dforum/re-auto-topcor-lenses_topic108389.html
This was the top of the line 35mm camera in its day and quite expensive. Thank you for your research. I liked them so much I bought 2 of them for a reasonable price considering their original price tag.

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Chromatic aberration

There are two kinds of chromatic aberration: longitudinal and lateral. Longitudinal chromatic aberration is a variation in location of the image plane with changes in wave lengths. It produces the image point surrounded by different colors which result in a blurred image in black-and-white pictures. Lateral chromatic aberration is a variation in image size or magnification with wave length. This aberration does not appear at axial image points but toward the surrounding area, proportional to the distance from the center of the image field. Stopping down the lens has only a limited effect on these aberrations.

Spherical aberration

Spherical aberration is caused because the lens is round and the film or image sensor is flat. Light entering the edge of the lens is more severely refracted than light entering the center of the lens. This results in a blurred image, and also causes flare (non-image forming internal reflections). Stopping down the lens minimizes spherical aberration and flare, but introduces diffraction.

Astigmatism

Astigmatism in a lens causes a point in the subject to be reproduced as a line in the image. The effect becomes worse towards the corner of the image. Stopping down the lens has very little effect.

Coma

Coma in a lens causes a circular shape in the subject to be reproduced as an oval shape in the image. Stopping down the lens has almost no effect.

Curvature of field

Curvature of field is the inability of a lens to produce a flat image of a flat subject. The image is formed instead on a curved surface. If the center of the image is in focus, the edges are out of focus and vice versa. Stopping down the lens has a limited effect.

Distortion

Distortion is the inability of a lens to capture lines as straight across the entire image area. Barrel distortion causes straight lines at the edges of the frame to bow toward the center of the image, producing a barrel shape. Pincushion distortion causes straight lines at the edges of the frame to curve in toward the lens axis. Distortion, whether barrel or pincushion type, is caused by differences in magnification; stopping down the lens has no effect at all.

The term "distortion" is also sometimes used instead of the term "aberration". In this case, other types of optical aberrations may also be meant, not necessarily geometric distortion.

Diffraction

Classically, light is thought of as always traveling in straight lines, but in reality, light waves tend to bend around nearby barriers, spreading out in the process. This phenomenon is known as diffraction and occurs when a light wave passes by a corner or through an opening. Diffraction plays a paramount role in limiting the resolving power of any lens.

Doublet

Doublet is a lens design comprised of two elements grouped together. Sometimes the two elements are cemented together, and other times they are separated by an air gap. Examples of this type of lens include achromatic close-up lenses.

Dynamic range

Dynamic range is the maximum range of tones, from darkest shadows to brightest highlights, that can be produced by a device or perceived in an image. Also called tonal range.

Resolving power

Resolving power is the ability of a lens, photographic emulsion or imaging sensor to distinguish fine detail. Resolving power is expressed in terms of lines per millimeter that are distinctly recorded in the final image.

Vignetting

Vignetting is the darkening of the corners of an image relative to the center of the image. There are three types of vignetting: optical, mechanical, and natural vignetting.

Optical vignetting is caused by the physical dimensions of a multi-element lens. Rear elements are shaded by elements in front of them, which reduces the effective lens opening for off-axis incident light. The result is a gradual decrease of the light intensity towards the image periphery. Optical vignetting is sensitive to the aperture and can be completely cured by stopping down the lens. Two or three stops are usually sufficient.

Mechanical vignetting occurs when light beams are partially blocked by external objects such as thick or stacked filters, secondary lenses, and improper lens hoods.

Natural vignetting (also known as natural illumination falloff) is not due to the blocking of light rays. The falloff is approximated by the "cosine fourth" law of illumination falloff. Wide-angle rangefinder designs are particularly prone to natural vignetting. Stopping down the lens cannot cure it.

Flare

Bright shapes or lack of contrast caused when light is scattered by the surface of the lens or reflected off the interior surfaces of the lens barrel. This is most often seen when the lens is pointed toward the sun or another bright light source. Flare can be minimized by using anti-reflection coatings, light baffles, or a lens hood.

Ghosting

Glowing patches of light that appear in a photograph due to lens flare.

Retrofocus design

Design with negative lens group(s) positioned in front of the diaphragm and positive lens group(s) positioned at the rear of the diaphragm. This provides a short focal length with a long back focus or lens-to-film distance, allowing for movement of the reflex mirror in SLR cameras. Sometimes called an inverted telephoto lens.

Anastigmat

A photographic lens completely corrected for the three main optical aberrations: spherical aberration, coma, and astigmatism.

By the mid-20th century, the vast majority of lenses were close to being anastigmatic, so most manufacturers stopped including this characteristic in lens names and/or descriptions and focused on advertising other features (anti-reflection coating, for example).

Rectilinear design

Design that does not introduce significant distortion, especially ultra-wide angle lenses that preserve straight lines and do not curve them (unlike a fisheye lens, for instance).

Focus shift

A change in the position of the plane of optimal focus, generally due to a change in focal length when using a zoom lens, and in some lenses, with a change in aperture.

Transmittance

The amount of light that passes through a lens without being either absorbed by the glass or being reflected by glass/air surfaces.

Modulation Transfer Function (MTF)

When optical designers attempt to compare the performance of optical systems, a commonly used measure is the modulation transfer function (MTF).

The components of MTF are:

The MTF of a lens is a measurement of its ability to transfer contrast at a particular resolution from the object to the image. In other words, MTF is a way to incorporate resolution and contrast into a single specification.

Knowing the MTF curves of each photographic lens and camera sensor within a system allows a designer to make the appropriate selection when optimizing for a particular resolution.

Veiling glare

Lens flare that causes loss of contrast over part or all of the image.

Anti-reflection coating

When light enters or exits an uncoated lens approximately 5% of the light is reflected back at each lens-air boundary due to the difference in refractive index. This reflected light causes flare and ghosting, which results in deterioration of image quality. To counter this, a vapor-deposited coating that reduces light reflection is applied to the lens surface. Early coatings consisted of a single thin film with the correct refractive index differences to cancel out reflections. Multi-layer coatings, introduced in the early 1970s, are made up of several such films.

Benefits of anti-reflection coating:

Circular fisheye

Produces a 180° angle of view in all directions (horizontal, vertical and diagonal).

The image circle of the lens is inscribed in the image frame.

Diagonal (full-frame) fisheye

Covers the entire image frame. For this reason diagonal fisheye lenses are often called full-frame fisheyes.

Extension ring

Extension rings can be used singly or in combination to vary the reproduction ratio of lenses. They are mounted between the camera body and the lens. As a rule, the effect becomes stronger the shorter the focal length of the lens in use, and the longer the focal length of the extension ring.

View camera

A large-format camera with a ground-glass viewfinder at the image plane for viewing and focusing. The photographer must stick his head under a cloth hood in order to see the image projected on the ground glass. Because of their 4x5-inch (or larger) negatives, these cameras can produce extremely high-quality results. View cameras also usually support movements.

135 cartridge-loaded film

43.27 24 36
  • Introduced: 1934
  • Frame size: 36 × 24mm
  • Aspect ratio: 3:2
  • Diagonal: 43.27mm
  • Area: 864mm2
  • Double perforated
  • 8 perforations per frame

120 roll film

71.22 44 56
  • Introduced: 1901
  • Frame size: 56 × 44mm
  • Aspect ratio: 11:14
  • Diagonal: 71.22mm
  • Area: 2464mm2
  • Unperforated

120 roll film

79.2 56 56
  • Introduced: 1901
  • Frame size: 56 × 56mm
  • Aspect ratio: 1:1
  • Diagonal: 79.2mm
  • Area: 3136mm2
  • Unperforated

120 roll film

89.64 56 70
  • Introduced: 1901
  • Frame size: 70 × 56mm
  • Aspect ratio: 5:4
  • Diagonal: 89.64mm
  • Area: 3920mm2
  • Unperforated

220 roll film

71.22 44 56
  • Introduced: 1965
  • Frame size: 56 × 44mm
  • Aspect ratio: 11:14
  • Diagonal: 71.22mm
  • Area: 2464mm2
  • Unperforated
  • Double the length of 120 roll film

220 roll film

79.2 56 56
  • Introduced: 1965
  • Frame size: 56 × 56mm
  • Aspect ratio: 1:1
  • Diagonal: 79.2mm
  • Area: 3136mm2
  • Unperforated
  • Double the length of 120 roll film

220 roll film

89.64 56 70
  • Introduced: 1965
  • Frame size: 70 × 56mm
  • Aspect ratio: 5:4
  • Diagonal: 89.64mm
  • Area: 3920mm2
  • Unperforated
  • Double the length of 120 roll film

Shutter speed ring with "F" setting

The "F" setting disengages the leaf shutter and is set when using only the focal plane shutter in the camera body.

Catch for disengaging cross-coupling

The shutter and diaphragm settings are cross-coupled so that the diaphragm opens to a corresponding degree when faster shutter speeds are selected. The cross-coupling can be disengaged at the press of a catch.

Cross-coupling button

With the cross-coupling button depressed speed/aperture combinations can be altered without changing the Exposure Value setting.

M & X sync

The shutter is fully synchronized for M- and X-settings so that you can work with flash at all shutter speeds.

In M-sync, the shutter closes the flash-firing circuit slightly before it is fully open to catch the flash at maximum intensity. The M-setting is used for Class M flash bulbs.

In X-sync, the flash takes place when the shutter is fully opened. The X-setting is used for electronic flash.

X sync

The shutter is fully synchronized for X-setting so that you can work with flash at all shutter speeds.

In X-sync, the flash takes place when the shutter is fully opened. The X-setting is used for electronic flash.

Unable to follow the link

You are already on the page dedicated to this lens.

Cannot perform comparison

Cannot compare the lens to itself.

Image stabilizer

A technology used for reducing or even eliminating the effects of camera shake. Gyro sensors inside the lens detect camera shake and pass the data to a microcomputer. Then an image stabilization group of elements controlled by the microcomputer moves inside the lens and compensates camera shake in order to keep the image static on the imaging sensor or film.

The technology allows to increase the shutter speed by several stops and shoot handheld in such lighting conditions and at such focal lengths where without image stabilizer you have to use tripod, decrease the shutter speed and/or increase the ISO setting which can lead to blurry and noisy images.

Original name

Lens name as indicated on the lens barrel (usually on the front ring). With lenses from film era, may vary slightly from batch to batch.

Format

Format refers to the shape and size of film or image sensor.

35mm is the common name of the 36x24mm film format or image sensor format. It has an aspect ratio of 3:2, and a diagonal measurement of approximately 43mm. The name originates with the total width of the 135 film which was the primary medium of the format prior to the invention of the full frame digital SLR. Historically the 35mm format was sometimes called small format to distinguish it from the medium and large formats.

APS-C is an image sensor format approximately equivalent in size to the film negatives of 25.1x16.7mm with an aspect ratio of 3:2.

Medium format is a film format or image sensor format larger than 36x24mm (35mm) but smaller than 4x5in (large format).

Angle of view

Angle of view describes the angular extent of a given scene that is imaged by a camera. It is used interchangeably with the more general term field of view.

As the focal length changes, the angle of view also changes. The shorter the focal length (eg 18mm), the wider the angle of view. Conversely, the longer the focal length (eg 55mm), the smaller the angle of view.

A camera's angle of view depends not only on the lens, but also on the sensor. Imaging sensors are sometimes smaller than 35mm film frame, and this causes the lens to have a narrower angle of view than with 35mm film, by a certain factor for each sensor (called the crop factor).

This website does not use the angles of view provided by lens manufacturers, but calculates them automatically by the following formula: 114.6 * arctan (21.622 / CF * FL),

where:

CF – crop-factor of a sensor,
FL – focal length of a lens.

Mount

A lens mount is an interface — mechanical and often also electrical — between a camera body and a lens.

A lens mount may be a screw-threaded type, a bayonet-type, or a breech-lock type. Modern camera lens mounts are of the bayonet type, because the bayonet mechanism precisely aligns mechanical and electrical features between lens and body, unlike screw-threaded mounts.

Lens mounts of competing manufacturers (Canon, Leica, Nikon, Pentax, Sony etc.) are always incompatible. In addition to the mechanical and electrical interface variations, the flange focal distance (distance from the mechanical rear end surface of the lens mount to the focal plane) is also different.

Lens construction

Lens construction – a specific arrangement of elements and groups that make up the optical design, including type and size of elements, type of used materials etc.

Element - an individual piece of glass which makes up one component of a photographic lens. Photographic lenses are nearly always built up of multiple such elements.

Group – a cemented together pieces of glass which form a single unit or an individual piece of glass. The advantage is that there is no glass-air surfaces between cemented together pieces of glass, which reduces reflections.

Focal length

The focal length is the factor that determines the size of the image reproduced on the focal plane, picture angle which covers the area of the subject to be photographed, depth of field, etc.

Speed

The largest opening or stop at which a lens can be used is referred to as the speed of the lens. The larger the maximum aperture is, the faster the lens is considered to be. Lenses that offer a large maximum aperture are commonly referred to as fast lenses, and lenses with smaller maximum aperture are regarded as slow.

In low-light situations, having a wider maximum aperture means that you can shoot at a faster shutter speed or work at a lower ISO, or both.

Closest focusing distance

The minimum distance from the focal plane (film or sensor) to the subject where the lens is still able to focus.

Closest working distance

The distance from the front edge of the lens to the subject at the maximum magnification.

Magnification ratio

Determines how large the subject will appear in the final image. Magnification is expressed as a ratio. For example, a magnification ratio of 1:1 means that the image of the subject formed on the film or sensor will be the same size as the subject in real life. For this reason, a 1:1 ratio is often called "life-size".

Manual focus override in autofocus mode

Allows to perform final focusing manually after the camera has locked the focus automatically. Note that you don't have to switch camera and/or lens to manual focus mode.

Manual focus override in autofocus mode

Allows to perform final focusing manually after the camera has locked the focus automatically. Note that you don't have to switch camera and/or lens to manual focus mode.

Electronic manual focus override is performed in the following way: half-press the shutter button, wait until the camera has finished the autofocusing and then focus manually without releasing the shutter button using the focusing ring.

Manual diaphragm

The diaphragm must be stopped down manually by rotating the detent aperture ring.

Preset diaphragm

The lens has two rings, one is for pre-setting, while the other is for normal diaphragm adjustment. The first ring must be set at the desired aperture, the second ring then should be fully opened for focusing, and turned back for stop down to the pre-set value.

Semi-automatic diaphragm

The lens features spring mechanism in the diaphragm, triggered by the shutter release, which stops down the diaphragm to the pre-set value. The spring needs to be reset manually after each exposure to re-open diaphragm to its maximum value.

Automatic diaphragm

The camera automatically closes the diaphragm down during the shutter operation. On completion of the exposure, the diaphragm re-opens to its maximum value.

Fixed diaphragm

The aperture setting is fixed at F/ on this lens, and cannot be adjusted.

Number of blades

As a general rule, the more blades that are used to create the aperture opening in the lens, the rounder the out-of-focus highlights will be.

Some lenses are designed with curved diaphragm blades, so the roundness of the aperture comes not from the number of blades, but from their shape. However, the fewer blades the diaphragm has, the more difficult it is to form a circle, regardless of rounded edges.

At maximum aperture, the opening will be circular regardless of the number of blades.

Weight

Excluding case or pouch, caps and other detachable accessories (lens hood, close-up adapter, tripod adapter etc.).

Maximum diameter x Length

Excluding case or pouch, caps and other detachable accessories (lens hood, close-up adapter, tripod adapter etc.).

For lenses with collapsible design, the length is indicated for the working (retracted) state.

Weather sealing

A rubber material which is inserted in between each externally exposed part (manual focus and zoom rings, buttons, switch panels etc.) to ensure it is properly sealed against dust and moisture.

Lenses that accept front mounted filters typically do not have gaskets behind the filter mount. It is recommended to use a filter for complete weather resistance when desired.

Fluorine coating

Helps keep lenses clean by reducing the possibility of dust and dirt adhering to the lens and by facilitating cleaning should the need arise. Applied to the outer surface of the front lens element over multi-coatings.

Filters

Lens filters are accessories that can protect lenses from dirt and damage, enhance colors, minimize glare and reflections, and add creative effects to images.

Lens hood

A lens hood or lens shade is a device used on the end of a lens to block the sun or other light source in order to prevent glare and lens flare. Flare occurs when stray light strikes the front element of a lens and then bounces around within the lens. This stray light often comes from very bright light sources, such as the sun, bright studio lights, or a bright white background.

The geometry of the lens hood can vary from a plain cylindrical or conical section to a more complex shape, sometimes called a petal, tulip, or flower hood. This allows the lens hood to block stray light with the higher portions of the lens hood, while allowing more light into the corners of the image through the lowered portions of the hood.

Lens hoods are more prominent in long focus lenses because they have a smaller viewing angle than that of wide-angle lenses. For wide angle lenses, the length of the hood cannot be as long as those for telephoto lenses, as a longer hood would enter the wider field of view of the lens.

Lens hoods are often designed to fit onto the matching lens facing either forward, for normal use, or backwards, so that the hood may be stored with the lens without occupying much additional space. In addition, lens hoods can offer some degree of physical protection for the lens due to the hood extending farther than the lens itself.

Teleconverters

Teleconverters increase the effective focal length of lenses. They also usually maintain the closest focusing distance of lenses, thus increasing the magnification significantly. A lens combined with a teleconverter is normally smaller, lighter and cheaper than a "direct" telephoto lens of the same focal length and speed.

Teleconverters are a convenient way of enhancing telephoto capability, but it comes at a cost − reduced maximum aperture. Also, since teleconverters magnify every detail in the image, they logically also magnify residual aberrations of the lens.

Lens caps

Scratched lens surfaces can spoil the definition and contrast of even the finest lenses. Lens covers are the best and most inexpensive protection available against dust, moisture and abrasion. Safeguard lens elements - both front and rear - whenever the lens is not in use.