Pentax MZ-5n

35mm AF film SLR camera

Specification

Production details
Announced:March 1997
Also known as:Pentax ZX-5n
System: Pentax K (1975)
Imaging plane
Maximum format:35mm full frame
Mount and Flange focal distance:Pentax K [45.5mm]
Imaging plane:36 × 24mm film
Shutter
Type:Focal-plane
Model:Electronically controlled
Speeds:30 - 1/2000 + B
Exposure
Exposure metering:Through-the-lens (TTL)
Exposure modes:Programmed Auto
Aperture-priority Auto
Shutter-priority Auto
Manual
Physical characteristics
Weight:410g
Dimensions:135x90x61.5mm

Manufacturer description #1

TYPE: TTL autofocus, auto-exposure 35mm SLR with built-in TTL auto flash (RTF)

FORMAT: 24x36mm (Approx. 13x36 in panorama format)

USABLE FILM: 35mm perforated cartridge film. DX-coded film with ISO 25-5000; non-DX coded films with ISO 6-6400

EXPOSURE MODES: Programmed AE Mode, Shutter-Priority AE Mode, Aperture-Priority AE Mode, Metered Manual Mode, Bulb Mode, TTL Flash Mode

SHUTTER: Electronically controlled vertical-run focal-plane shutter, Electromagnetic release, Speed range: (1) Auto 1/2000-30 sec. (stepless), (2) Manual 1/2000-2 sec. (3) Bulb

LENS MOUNT: Pentax KAF2 bayonet mount (K-mount with AF coupler, lens information contacts and power contacts)

COMPATIBLE LENS: Pentax KAF2-, KAF-, KA- and K-mount lenses are usable. Autofocus is possible using AF Adapter with KA- mount lenses

AUTOFOCUS SYSTEM: TTL phase-matching multi-(3 points) autofocus system switchable to Spot focusing, AF operational brightness range: EV-1 to 18 (at ISO 100 with f/1.4 lens), Focus lock available using shutter release button, Focus Mode: AF (predictive AF provided), Manual [MF]

POWER ZOOM: 3-Speed Intelligent Power Zoom lens with built-in motor with FA zoom lens

VIEWFINDER: Pentaprism finder, Natural-Bright-Matte focusing screen, Field of view: 92%, Magnification: 0.8X (with 50mm lens at infinity), Diopter: -2.5 to +1.5 diopters, 3-point AF frame, Spot AF frame, Panorama format frame

VIEWFINDER INDICATION: Focus Information: In-focus (Green lamp is lit), front or back focus signals and unable-to-focus indicator (Green lamp blinks), Shutter speed indication, Aperture indication, Flash ready indication is lit, Bar graph (exposure compensation), Over or Under exposure indication in Manual Exposure Mode, exposure compensation indication, [*] memory lock indicator

EXTERNAL LCD PANEL INDICATION: [P] = Programmed-AE Mode, [Tv] = Shutter-Priority AE Mode, [Av] = Aperture-Priority AE Mode, [M] = Manual Exposure Mode, [bu] Bulb Mode, Film speed = 6-6400, ISO indication, Film status information, Battery exhaustion warning, Film counter = 0-99, Built-in flash ready indication, blinking slowly flash recommended warning, blinks rapidly Inappropriate lens warning, Red-eye reduction flash mode, Automatic flash function, PCV signal indication

PREVIEW BUTTON: Electronically controlled type and possible to use in all exposure modes

SELF-TIMER: Electronically-controlled type with delay time of 12 sec. Start by depressing of shutter release button, Operation confirmation: By PCV beep tone. Cancelable after operation

MIRROR: Quick-return mirror with AF secondary mirror

FILM LOADING: Film advances automatically to 1st frame after back cover is closed. Film information window is provided

FILM WIND & REWIND: Auto wind/rewind by built-in motor, Consecutive or Single advance mode, Approx. 2.0 frames/sec. (consecutive mode), Auto rewinding starts at end of roll, Film rewind/completion of rewinding is displayed on the LCD panel, mid-roll rewind button will rewind film in mid-roll

EXPOSURE METER: TTL multi(6)-segment metering, Metering range from EV0 to EV21 at ISO 100 with 50mm f/1.4 lens, Center-weighted and Spot metering mode can be set

EXPOSURE COMPENSATION: +/- 3EV in 0.5EV step increments

AUTO BRACKETING: Three frame consecutive shots with exposure bracketing in 1 EV or 0.5 EV step increment, Possible to use with exposure compensation

FLASH: Series-control, Retractable TTL Auto Flash (RTF), Guide number: 11 (ISO 100/m), Illumination angle covers 28mm lens angle of view, Flash-sync-speed in the range from 1/100 to a slower speed, Day-light-sync flash, Slow-speed-sync flash, Contrast-control-flash sync (ISO range=25-400), Automatic flash discharge, Red-eye reduction flash function

FLASH SYNC: Hot shoe with X-contact which couples with Pentax dedicated auto flashes, ISO range = 25-800

POWER SOURCE: Two 3V lithium battery (CR2 or equivalent)

BATTERY EXHAUSTION WARNING: Battery exhaustion symbol is lit (blinking when the shutter is locked; no indication on the right-hand edge of the viewfinder)

BACK COVER: Interchangeable for replacing Data Back FG

Manufacturer description #2

A new 35mm autofocus SLR camera featuring autobracketing, electronic preview and exposure memory lock for more creative photography.

The exposure memory lock button allows you to quickly and accurately expose for those areas that are most important to the scene.

The electronic depth of field preview button allows you to see precisely those areas that are in focus before taking the exposure.

An easy to use auto bracketing switch allows you to take 3 exposures at 1/2 or 1 stop increments.

With its ultra-compact dimensions and functional design, the ZX-5N is one of the smallest 35mm SLRs. It measures 5.3" wide, 3.5" high and 2.4" deep.

Two control dials on the camera’s top panel handle most of the operational adjustments... from the setting of the metering mode and the selection of the shutter speed to the adjustment of the exposure compensation.

The ZX-5N offers five exposure modes (Programmed AE, Aperture-Priority AE, Shutter-Priority AE, Metered Manual and Bulb). The three auto-exposure modes are designed to simplify operation, while the Metered Manual mode gives unlimited control over the exposure control.

An advanced six-segment multi-pattern metering system assures optimum results under difficult lighting conditions. The spot metering allows the photographer to pinpoint the metering at a single small area of the frame. Center-weighted metering is also provided for those who are use to conventional metering systems.

The ZX-5N incorporates a high-precision, high-speed phase matching autofocus system (SAFOX IV), which is extremely reliable even under poor lighting conditions. The predictive autofocus function automatically activates when the camera detects the subject’s motion. Then, it “predicts” the subject’s position at the moment of shutter release and adjusts the focus accordingly.

The built-in “Smart Flash,” which covers up to a 28mm angle of view, gives a warning when the camera detects low-light and backlight situations. When set in the Programmed AE mode and with the flash in the pop-up position, the Smart Flash automatically provides supplementary illumination of the subject for perfect exposure. The advanced TTL flash control system makes complicated flash techniques simple and effortless. There is also a preflash emission function to reduce “red-eye.”

To complement the dial control system, the ZX-5N is equipped with a multi-data viewfinder display and LCD panel, with an illuminator that automatically adjusts the illumination level to the brightness of the subject.

The ZX-5N features a panorama mode, which makes it possible to switch to this mode at any frame with a simple twist of a lever.

While many existing Pentax accessories can be used with the ZX-5N (for instance the AF500 FTZ and AF330 FTZ flash units), the line-up is further expanded with the addition of new accessories exclusively designed for this camera. These new accessories include:

  • AA-Battery Pack FG: Uses four AA-size batteries and can power the ZX-5N for 200 rolls of 24-exposure film (without use of the flash).
  • Data Back FG: Replacing the camera’s back cover, this data back records the date or time of shooting on each picture. In the panorama mode, it automatically adjusts the position of data imprinting.
  • Extension Cord F5P, Hot Shoe Adapter FG, Off-Camera Adapter F: These connection accessories are designed for a remote flash setup using a Pentax dedicated accessory flash unit and multi-flash set up combination with the ZX-5N’s RTF with a dedicated accessory flash unit.
  • Other accessories include: Extension Cord F5P and Hot Shoe Adapter FG for the AF500FTZ. Extension Cord F5P, Hot Shoe Adapter FG and Off- Camera Adapter F for the AF330FTZ.
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35mm full frame

43.27 24 36
  • Dimensions: 36 × 24mm
  • Aspect ratio: 3:2
  • Diagonal: 43.27mm
  • Area: 864mm2

Travellers' choice

Note

Among autofocus lenses designed for 35mm full-frame mirrorless cameras only. Speed of standard and telephoto lenses is taken into account.

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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, Nikon, Pentax, Sony etc.) are always incompatible. In addition to the mechanical and electrical interface variations, the flange focal distance can also be different.

The flange focal distance (FFD) is the distance from the mechanical rear end surface of the lens mount to the focal plane.

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. 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.

Electromagnetic diaphragm control system

Provides highly accurate diaphragm control and stable auto exposure performance during continuous shooting.

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 and/or rear lens elements 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.