Fujifilm Fujinon XF 33mm F/1.4 R LM WR

Standard prime lens • Digital era

XF The lens is designed for Fujifilm APS-C digital mirrorless cameras.
R The lens is equipped with aperture ring.
LM The lens is equipped with Linear Motor.
WR Dust-proof and Weather-Resistant lens.

Model history

Fujifilm Fujinon XF 33mm F/1.4 R LM WRAPS-CA15 - 100.3m⌀58 2021 
Fujifilm Fujinon XF 35mm F/1.4 RAPS-CA8 - 60.8m⌀52 2012 

Fujifilm X-Pro1

APS-C AF digital mirrorless camera

Announced:January 2012
Mount:Fujifilm X
Format:23.6 × 15.6mm - 1.53x
Resolution:4896 × 3264 - 16 MP
Sensor type:X-Trans CMOS
Image stabilizer:-

Fujifilm X-E1

APS-C AF digital mirrorless camera

Announced:September 2012
Mount:Fujifilm X
Format:23.6 × 15.6mm - 1.53x
Resolution:4896 × 3264 - 16 MP
Sensor type:X-Trans CMOS
Image stabilizer:-

Fujifilm X-M1

APS-C AF digital mirrorless camera

Announced:June 2013
Mount:Fujifilm X
Format:23.6 × 15.6mm - 1.53x
Resolution:4896 × 3264 - 16 MP
Sensor type:X-Trans CMOS
Image stabilizer:-

Fujifilm X-A1

APS-C AF digital mirrorless camera

Announced:September 2013
Mount:Fujifilm X
Format:23.6 × 15.6mm - 1.53x
Resolution:4896 × 3264 - 16 MP
Sensor type:CMOS
Image stabilizer:-

Fujifilm X-E2

APS-C AF digital mirrorless camera

Announced:October 2013
Mount:Fujifilm X
Format:23.6 × 15.6mm - 1.53x
Resolution:4896 × 3264 - 16 MP
Sensor type:X-Trans CMOS II
Image stabilizer:-

Fujifilm X-T1

APS-C AF digital mirrorless camera

Announced:January 2014
Mount:Fujifilm X
Format:23.6 × 15.6mm - 1.53x
Resolution:4896 × 3264 - 16 MP
Sensor type:X-Trans CMOS II
Image stabilizer:-

Fujifilm X-A2

APS-C AF digital mirrorless camera

Announced:January 2015
Mount:Fujifilm X
Format:23.6 × 15.6mm - 1.53x
Resolution:4896 × 3264 - 16 MP
Sensor type:CMOS
Image stabilizer:-

Fujifilm X-T10

APS-C AF digital mirrorless camera

Announced:May 2015
Mount:Fujifilm X
Format:23.6 × 15.6mm - 1.53x
Resolution:4896 × 3264 - 16 MP
Sensor type:X-Trans CMOS II
Image stabilizer:-

Fujifilm X-E2S

APS-C AF digital mirrorless camera

Announced:January 2016
Mount:Fujifilm X
Format:23.6 × 15.6mm - 1.53x
Resolution:4896 × 3264 - 16 MP
Sensor type:X-Trans CMOS II
Image stabilizer:-

Fujifilm X-Pro2

APS-C AF digital mirrorless camera

Announced:January 2016
Mount:Fujifilm X
Format:23.6 × 15.6mm - 1.53x
Resolution:6000 × 4000 - 24 MP
Sensor type:X-Trans CMOS III
Image stabilizer:-

Fujifilm X-T2

APS-C AF digital mirrorless camera

Announced:July 2016
Mount:Fujifilm X
Format:23.6 × 15.6mm - 1.53x
Resolution:6000 × 4000 - 24 MP
Sensor type:X-Trans CMOS III
Image stabilizer:-

Fujifilm X-A3

APS-C AF digital mirrorless camera

Announced:August 2016
Mount:Fujifilm X
Format:23.5 × 15.7mm - 1.53x
Resolution:6000 × 4000 - 24 MP
Sensor type:CMOS
Image stabilizer:-

Fujifilm X-A10

APS-C AF digital mirrorless camera

Announced:December 2016
Mount:Fujifilm X
Format:23.6 × 15.6mm - 1.53x
Resolution:4896 × 3264 - 16 MP
Sensor type:CMOS
Image stabilizer:-

Fujifilm X-T20

APS-C AF digital mirrorless camera

Announced:January 2017
Mount:Fujifilm X
Format:23.6 × 15.6mm - 1.53x
Resolution:6000 × 4000 - 24 MP
Sensor type:X-Trans CMOS III
Image stabilizer:-

Fujifilm X-E3

APS-C AF digital mirrorless camera

Announced:September 2017
Mount:Fujifilm X
Format:23.5 × 15.6mm - 1.53x
Resolution:6000 × 4000 - 24 MP
Sensor type:X-Trans CMOS III
Image stabilizer:-

Fujifilm X-A20

APS-C AF digital mirrorless camera

Announced:January 2018
Mount:Fujifilm X
Format:23.6 × 15.6mm - 1.53x
Resolution:4896 × 3264 - 16 MP
Sensor type:CMOS
Image stabilizer:-

Fujifilm X-A5

APS-C AF digital mirrorless camera

Announced:January 2018
Mount:Fujifilm X
Format:23.5 × 15.7mm - 1.53x
Resolution:6000 × 4000 - 24 MP
Sensor type:CMOS
Image stabilizer:-

Fujifilm X-H1

APS-C AF digital mirrorless camera

Announced:February 2018
Mount:Fujifilm X
Format:23.5 × 15.6mm - 1.53x
Resolution:6000 × 4000 - 24 MP
Sensor type:X-Trans CMOS III
Image stabilizer:Yes

Fujifilm X-T100

APS-C AF digital mirrorless camera

Announced:May 2018
Mount:Fujifilm X
Format:23.5 × 15.7mm - 1.53x
Resolution:6000 × 4000 - 24 MP
Sensor type:CMOS
Image stabilizer:-

Fujifilm X-T3

APS-C AF digital mirrorless camera

Announced:September 2018
Mount:Fujifilm X
Format:23.5 × 15.6mm - 1.53x
Resolution:6240 × 4160 - 26 MP
Sensor type:X-Trans CMOS IV
Image stabilizer:-

Fujifilm X-T30

APS-C AF digital mirrorless camera

Announced:February 2019
Mount:Fujifilm X
Format:23.5 × 15.6mm - 1.53x
Resolution:6240 × 4160 - 26 MP
Sensor type:X-Trans CMOS IV
Image stabilizer:-

Fujifilm X-A7

APS-C AF digital mirrorless camera

Announced:September 2019
Mount:Fujifilm X
Format:23.5 × 15.7mm - 1.53x
Resolution:6000 × 4000 - 24 MP
Sensor type:CMOS
Image stabilizer:-

Fujifilm X-Pro3

APS-C AF digital mirrorless camera

Announced:October 2019
Mount:Fujifilm X
Format:23.5 × 15.6mm - 1.53x
Resolution:6240 × 4160 - 26 MP
Sensor type:X-Trans CMOS IV
Image stabilizer:-

Fujifilm X-T200

APS-C AF digital mirrorless camera

Announced:January 2020
Mount:Fujifilm X
Format:23.5 × 15.7mm - 1.53x
Resolution:6000 × 4000 - 24 MP
Sensor type:CMOS
Image stabilizer:-

Fujifilm X-T4

APS-C AF digital mirrorless camera

Announced:February 2020
Mount:Fujifilm X
Format:23.5 × 15.6mm - 1.53x
Resolution:6240 × 4160 - 26 MP
Sensor type:X-Trans CMOS IV
Image stabilizer:Yes

Fujifilm X-S10

APS-C AF digital mirrorless camera

Announced:October 2020
Mount:Fujifilm X
Format:23.5 × 15.6mm - 1.53x
Resolution:6240 × 4160 - 26 MP
Sensor type:X-Trans CMOS IV
Image stabilizer:Yes

Fujifilm X-E4

APS-C AF digital mirrorless camera

Announced:January 2021
Mount:Fujifilm X
Format:23.5 × 15.6mm - 1.53x
Resolution:6240 × 4160 - 26 MP
Sensor type:X-Trans CMOS IV
Image stabilizer:-

Fujifilm X-T30 II

APS-C AF digital mirrorless camera

Announced:September 2021
Mount:Fujifilm X
Format:23.5 × 15.6mm - 1.53x
Resolution:6240 × 4160 - 26 MP
Sensor type:X-Trans CMOS IV
Image stabilizer:-

Designed for

Click to expand or collapse section(s)

Features highlight

APS-C
Ultra fast
2 ASPH
3 ED
9 blades
RF
LM
DP/WR

Specification

Production details
Announced:September 2021
Production status:In production
Production type:Mass production
Original name:FUJINON ASPHERICAL LENS SUPER EBC XF 33mm 1:1.4 R LM WR
Optical design
Focal length:33mm
Speed:F/1.4
Maximum format:APS-C
Mount:Fujifilm X
Diagonal angle of view:46.6° (Fujifilm X APS-C)
Lens construction:15 elements - 10 groups
2 ASPH, 3 ED
Diaphragm mechanism
Number of blades:9
Focusing
Closest focusing distance:0.3m
Maximum magnification ratio:1:6.67 at the closest focusing distance
Focusing method:Rear focusing (RF)
Focusing modes:Autofocus, manual focus
Manual focus control:Focusing ring
Autofocus motor:Linear motor
Focus mode selector:None; focusing mode is set from the camera
Manual focus override in autofocus mode:Determined by the camera
Optical Image Stabilizer (OIS)
Built-in OIS:-
Physical characteristics
Weight:360g
Maximum diameter x Length:⌀67×73.5mm
Weather sealing:Dust-proof and water-resistant barrel
Fluorine coating:-
Accessories
Filters:Screw-type 58mm
Lens hood:Bayonet-type (round)
Bayonet-type LH-XF23 II (rectangular)

Manufacturer description

TOKYO, September 2, 2021 – FUJIFILM Corporation (President; Teiichi Goto) is pleased to announce that it will gradually launch the “FUJINON Lens XF33mmF1.4 R LM WR” (XF33mmF1.4 R LM WR) in late September 2021. It will be a new addition to the lineup of interchangeable XF lenses designed for the X Series of mirrorless digital cameras, known for their compact and lightweight design and outstanding image quality based on Fujifilm’s proprietary color reproduction technology.

The XF33mmF1.4 R LM WR is a large-diameter prime lens with the standard focal length of 33mm (equivalent to 50mm in the 35mm format), offering superior resolution capabilities and the maximum aperture of F1.4. Its silent, fast and highly accurate AF system ensures to capture a photo subject swiftly and accurately.

The XF33mmF1.4 R LM WR consists of 15 lens elements in 10 groups, including two aspherical elements and three ED elements, to achieve superior resolution capabilities for edge-to-edge sharpness. Boasting the maximum aperture of F1.4, the lens allows users to produce high-quality pictures with minimal camera shake and digital noise even in low light conditions. The standard focal length of 33mm (equivalent to 50mm in the 35mm format) makes it a perfect choice for snapshots and portraiture that incorporates a natural sense of perspective.

The XF33mmF1.4 R LM WR uses the Inner Focus system, driven by a linear motor, for fast and highly accurate AF. The resulting silent and smooth focusing is perfect for shooting not only stills but also videos. The highly portable design that weighs approximately 360g, thanks to the compact and lightweight X Mount system*1, offers an outstanding mobility.

In addition to the XF33mmF1.4 R LM WR, Fujifilm has today announced the launch of the FUJINON Lens XF23mmF1.4 R LM WR. Including the FUJINON Lens XF18mmF1.4 R LM WR, launched in May this year, a total of three lenses form a new-generation “large diameter prime” series with high resolution capabilities, catering to future advancement in image sensor resolutions.

*1 The system based on the X Mount, a lens mount for the X Series of mirrorless digital cameras equipped with an APS-C sensor.

1. Product features

(1) Superior resolution capabilities for edge-to-edge sharpness

  • The lens consists of 15 lens elements in 10 groups, including two aspherical elements and three ED elements, to effectively minimize chromatic aberration and spherical aberration, resulting in superior resolution capabilities for edge-to-edge sharpness. An aspherical element is positioned closest to the mount while the focusing lens group containing the other aspherical element and two ED elements is positioned in the middle. The group is driven together to reduce fluctuation of aberration and maintain premium image quality from the minimum working distance to infinity.
  • Boasting the maximum aperture of F1.4, the lens allows users to produce high-quality pictures with minimal camera shake and digital noise even in low light conditions such as outdoors at night or indoors. Creamy bokeh produced by a shallow depth-of-field and precise depiction of the focal plane enables three-dimensional definitions which makes the main subject stand out.

(2) Standard focal length of 33mm for a natural perspective

  • The XF33mmF1.4 R LM WR offers the standard focal length of 33mm (equivalent to 50mm in the 35mm format), providing the angle of view closest to that of the human eye for snapshots and portraiture with a natural perspective. The lens is extremely versatile with the minimum working distance of about 30cm and the maximum magnification of 0.15x (equivalent to 0.2x in the 35mm format), enabling a variety of photographic expressions.

(3) Fast and highly accurate AF and compact design for added mobility

  • The lens uses the Inner Focus system, in which a compact and lightweight focusing lens group is driven by a linear motor. The focusing group is designed to have a small range of movement to achieve a fast and highly accurate AF, attaining focus in as fast as 0.04 seconds*3 to seize a decisive photo opportunity.
  • The lens delivers silent and smooth focusing in the AF-C mode, frequently used when recording video. Fujifilm’s proprietary optical design technology has minimized changes in the angle of view during focusing (focus breathing), making the lens an ideal choice for video recording as well as still photo shooting.
  • The focus ring can sense the amount of rotation very accurately to detect even the subtlest of fingertip operations for precise focusing.
  • The use of smaller-diameter lens elements in the focusing group and optimized positioning of the linear motor have kept this lens compact, weighing approximately 360g and measuring approximately 73.5mm long with the filter thread size of 58mm for an advanced level of portability.

*3 Using an internal measurement method compliant with the CIPA Guidelines, when mounted on the mirrorless digital camera “FUJIFILM X-T4” with Phase Detection AF activated and the High Performance Mode turned ON.

(4) Excellent usability with a dust and weather resistant structure that can operate at temperatures as low as -10°C

  • The lens barrel is weather-sealed at 11 locations so that it is dust and weather resistant and can be operated at temperatures as low as -10°C, giving users peace of mind when shooting in light rain, in dusty conditions or in low temperatures such as astrophotography on cold winter nights.
  • The A (auto) Position Lock offers reliable operation, locking the aperture ring in place to avoid any unintentional adjustment during shooting.

Accessory

Lens hood LH-XF23 II

(designed for the FUJINON Lens XF33mmF1.4 R LM WR and FUJINON Lens XF23mmF1.4 R LM WR)

Together with the launch of the XF23mmF1.4 R LM WR, Fujifilm is releasing the rectangular-shaped Lens Hood LH-XF23 II, which can also be used with the XF33mmF1.4 R LM WR. It helps reduce flares and ghosting to capture clear pictures. The milled-aluminum design gives it a classical and stylish look.

From the editor

A long-awaited update of the XF 35mm F/1.4 R. The angle of view is 2.4 degrees wider, the lens received much more complex optical construction and has much shorter closest focusing distance, but, most importantly, it now uses a linear autofocus motor optimized for video recording. Unlike the predecessor, which shifts the entire optical system when focusing, the new lens only moves the lens group behind the diaphragm, which contributes to fast autofocus. Other advantages of the XF 33mm F/1.4 R LM WR include 9 aperture blades and weather sealing. The new lens weighs twice as much as the predecessor and has a slightly larger dimensions, but considering all its advantages, it is completely excusable, isn't it?

However, it should be also noted that the latest Fujifilm lenses all go against to what the company stood for: compact lightweight design. With the latest lens additions it makes more sense to migrate to a full-frame system because of the larger pixels per square mm, better image quality at high ISO settings and wider dynamic range, and more lenses to choose from.

Typical application

landscapes, interiors, buildings, cityscapes, portraits, photojournalism, weddings, parties, carnivals, live concerts, street, travel

Notes and recommendations

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Fujifilm Fujinon XF 35mm F/2 R WR ⌀43APS-C 2015 Compare31
Tokina atx-m 33mm F/1.4 X ⌀52APS-CPro 2020 Compare22

Best fast standard primes

Fujifilm Fujinon XF 35mm F/2 R WR ⌀43APS-C 2015 Compare31

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35mm full frame

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

Travellers' choice

Note

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

Professional lens (Top class)

One of the best fast standard primes

According to lens-db.com; among lenses designed for the same maximum format and mount.

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Quality control issues

The manufacturer of this lens does not provide adequate quality control. If you do decide to purchase this lens, do not order it online, but choose the best copy available in the store. In any case, there may also be problems with the build quality, and warranty repairs can take months.

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.

Linear motor

Aspherical elements

Aspherical elements (ASPH, XA, XGM) are used in wide-angle lenses for correction of distortion and in large-aperture lenses for correction of spherical aberration, astigmatism and coma, thus ensuring excellent sharpness and contrast even at fully open aperture. The effect of the aspherical element is determined by its position within the optical formula: the more the aspherical element moves away from the aperture stop, the more it influences distortion; close to the aperture stop it can be particularly used to correct spherical aberration. Aspherical element can substitute one or several regular spherical elements to achieve similar or better optical results, which allows to develop more compact and lightweight lenses.

Use of aspherical elements has its downsides: it leads to non-uniform rendering of out-of-focus highlights. This effect usually appears as "onion-like" texture of concentric rings or "wooly-like" texture and is caused by very slight defects in the surface of aspherical element. It is difficult to predict such effect, but usually it occurs when the highlights are small enough and far enough out of focus.

Low dispersion elements

Low dispersion elements (ED, LD, SD, UD etc) minimize chromatic aberrations and ensure excellent sharpness and contrast even at fully open aperture. This type of glass exhibits low refractive index, low dispersion, and exceptional partial dispersion characteristics compared to standard optical glass. Two lenses made of low dispersion glass offer almost the same performance as one fluorite lens.

Low dispersion elements

Low dispersion elements (ED, LD, SD, UD etc) minimize chromatic aberrations and ensure excellent sharpness and contrast even at fully open aperture. This type of glass exhibits low refractive index, low dispersion, and exceptional partial dispersion characteristics compared to standard optical glass. Two lenses made of low dispersion glass offer almost the same performance as one fluorite lens.

Canon's Super UD, Nikon's Super ED, Pentax' Super ED, Sigma's FLD ("F" Low Dispersion), Sony' Super ED and Tamron's XLD glasses are the highest level low dispersion glasses available with extremely high light transmission. These optical glasses have a performance equal to fluorite glass.

High-refraction low-dispersion elements

High-refraction low-dispersion elements (HLD) minimize chromatic aberrations and ensure excellent sharpness and contrast even at fully open aperture.

High Index, High Dispersion elements

High Index, High Dispersion elements (HID) minimize chromatic aberrations and ensure excellent sharpness and contrast even at fully open aperture.

Anomalous partial dispersion elements

Anomalous partial dispersion elements (AD) minimize chromatic aberrations and ensure excellent sharpness and contrast even at fully open aperture.

Fluorite elements

Synthetic fluorite elements (FL) minimize chromatic aberrations and ensure excellent sharpness and contrast even at fully open aperture. Compared with optical glass, fluorite lenses have a considerably lower refraction index, low dispersion and extraordinary partial dispersion, and high transmission of infrared and ultraviolet light. They are also significantly lighter than optical glass.

According to Nikon, fluorite easily cracks and is sensitive to temperature changes that can adversely affect focusing by altering the lens' refractive index. To avoid this, Canon, as the manufacturer most widely using fluorite in its telephoto lenses, never uses fluorite in the front and rear lens elements, and the white coating is applied to the lens barrels to reflect light and prevent the lens from overheating.

Short-wavelength refractive elements

High and specialized-dispersion elements (SR) refract light with wavelengths shorter than that of blue to achieve highly precise chromatic aberration compensation. This technology also results in smaller and lighter lenses.

Blue Spectrum Refractive Optics

Organic Blue Spectrum Refractive Optics material (BR Optics) placed between convex and concave elements made from conventional optical glass provides more efficient correction of longitudinal chromatic aberrations in comparison with conventional technology.

Diffraction elements

Diffraction elements (DO, PF) cancel chromatic aberrations at various wavelengths. This technology results in smaller and lighter lenses in comparison with traditional designs with no compromise in image quality.

High refractive index elements

High refractive index elements (HR, HRI, XR etc) minimize field curvature and spherical aberration. High refractive index element can substitute one or several regular elements to achieve similar or better optical results, which allows to develop more compact and lightweight lenses.

Apodization element

Apodization element (APD) is in fact a radial gradient filter. It practically does not change the characteristics of light beam passing through its central part but absorbs the light at the periphery. It sort of softens the edges of the aperture making the transition from foreground to background zone very smooth and results in very attractive, natural looking and silky smooth bokeh.

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 from the lens mount to the film or sensor can also be 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.

Flange focal distance

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

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.

Convex protruding front element

The convex front element protrudes from the lens barrel, making it impossible to use filters.

Fixed focus

There is no helicoid in this lens and everything is in focus from the closest focusing distance to infinity.

Overall linear extension

The entire lens optical system moves straight backward and forward when focusing is carried out. This is the simplest type of focusing used mainly in wide-angle and standard prime lenses. It has the advantage of introducing relatively little change in aberrations with respect to change in focusing distance. With telephoto and super telephoto lenses this method becomes less beneficial in terms of operability because of the increased size and weight of the lens system.

Front group linear extension

The rear group remains fixed and only the front group moves straight backward and forward during focusing. This method is primarily used in zoom lenses and allows to design comparatively simple lens construction, but also places restrictions on zoom magnification and size reduction.

Front group rotational extension

The lens barrel section holding the front lens group rotates to move the front group backward and forward during focusing. This method of focusing is also used only in zoom lenses.

Internal focusing (IF)

Focusing is performed by moving one or more lens groups positioned between the front lens group and the diaphragm.

Methods of internal and rear focusing have the following advantages:

Rear focusing (RF)

Focusing is performed by moving one or more lens groups positioned behind the diaphragm.

Methods of internal and rear focusing have the following advantages:

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.