Nikon NIKKOR Z 20mm F/1.8 S

Ultra-wide angle prime lens • Pro • Digital era

Abbreviations

Z The lens is designed for Nikon Z digital mirrorless cameras.
S Professional lens with high quality optics and robust build. Meets the highest standards and provides excellent performance and flawless image quality unachievable with traditional optical technologies.

Production details

Announced:February 2020
Production type:Mass production
Production status: In production
Original name:Nikon NIKKOR Z 20mm 1:1.8 S
System:Nikon Z (2018)

Features highlight

Extreme AoV
Fast
3
ASPH
3
ED
IF
9 blades
CFD 0.2m
Dual
STM
Multi-Focus System
DP/WR
⌀77
filters

Specification

Optical design
Focal length:20mm
Speed:F/1.8
Maximum format:35mm full frame
Mount and Flange focal distance:Nikon Z [16mm]
Diagonal angle of view:94.5°
Lens construction:14 elements - 11 groups
3 ASPH, 3 ED
Internal focusing (IF)
Diaphragm mechanism
Diaphragm type:Automatic
Aperture control:None; the aperture is controlled from the camera
Number of blades:9 (nine)
Focusing
Closest focusing distance:0.2m
Maximum magnification ratio:1:5.26 at the closest focusing distance
Focusing modes:Autofocus, manual focus
Manual focus control:Focusing ring
Autofocus motor:Dual Stepping motor (Multi-Focus System)
Focus mode selector:A - M
Manual focus override in autofocus mode:Determined by the camera
Vibration Reduction (VR)
Built-in VR:-
Physical characteristics
Weight:505g
Maximum diameter x Length:⌀84.5×108.5mm
Weather sealing:Dust-proof and water-resistant barrel
Fluorine coating:-
Accessories
Filters:Screw-type 77mm
Lens hood:Bayonet-type HB-95 (petal-shaped)
Teleconverters:Not compatible

*) Source of data: Manufacturer's technical data.

35mm equivalent focal length and speed (on APS-C cameras)

In terms of FoV & DoF
Camera series [Crop factor] Focal length SpeedMax MR Dia. angle of view
Nikon Z APS-C [1.53x] 30.6mm F/2.81:3.44 70.5°

Manufacturer description #1

February 11, 2020

The NIKKOR Z Expansion Continues: Nikon Announces Two New Z Mount Optics with the Addition of the Versatile NIKKOR Z 24-200mm f/4-6.3 VR and Wide-Angle NIKKOR Z 20mm f/1.8 S Lenses

Built on the Superior Optical Design of the Z Mount, Nikon’s Latest NIKKOR Z Lenses are Remarkable Tools for Capturing Travel, Landscapes and Adventure

Melville, NY – Today, Nikon Inc. announced two new full frame lenses to the rapidly expanding NIKKOR Z lineup. With the addition of the versatile, lightweight NIKKOR Z 24-200mm f/4-6.3 VR and the ultra-wide NIKKOR Z 20mm f/1.8 S, Nikon continues to demonstrate the superior optical capabilities of its NIKKOR Z lenses, made possible by the advanced technology of the revolutionary Z mount. The NIKKOR Z 24-200mm f/4-6.3 VR boasts a broad 24-200mm zoom range with the power and versatility to make it a staple for travel and everyday photography. Meanwhile, the NIKKOR Z 20mm f/1.8 S expands the f/1.8 line of NIKKOR Z lenses, offering an extremely fast aperture and a vast field of view, ideal for enthusiasts and pros shooting landscapes, architecture or the night sky.

“With the launch of the NIKKOR Z 24-200mm f/4-6.3 VR and NIKKOR Z 20mm f/1.8 S, Nikon remains dedicated to rapidly expanding the lens options for Z users,” said Jay Vannatter, Executive Vice President, Nikon Inc. “Whether it be a wide angle with a fast aperture for capturing landscapes or night photography, or a reliable all-in-one lens for those who want to travel light, we continue to offer Nikon users the advanced optics necessary to enhance their content.”

NIKKOR Z 20mm f/1.8 S: Expansive Views, Exceptional Details

Joining the S-line of high-performance NIKKOR Z lenses, the exceptionally sharp and versatile NIKKOR Z 20mm f/1.8 S ultra-wide lens was designed for those who want expansive imagery with increased detail, sharpness and shallow depth of field. The lens' 20mm focal length combines a bright f/1.8 constant aperture and beautiful point-light reproduction for fantastic stars and cityscapes, making it ideal for astrophotography or capturing vast landscapes in challenging light.

Built for worry-free durability, the NIKKOR Z 20mm f/1.8 S lens’ lightweight design is equipped with weather sealing to combat dust and moisture. The lens features 9 aperture blades, 3 ED lens elements and a Nano Crystal Coating, helping photographers to achieve top-notch image quality across the frame with consistency. Beyond its still photography prowess, the NIKKOR Z 20mm f/1.8 S offers multimedia creators a unique perspective, plus a stepping motor for fast and quiet AF and suppressed focus breathing, achieving truly cinematic video capture.

Manufacturer description #2

Combining the unique, ultra-wide perspective of a 20mm prime with the speed and low light capabilities of an f/1.8 maximum aperture, the NIKKOR Z 20mm f/1.8 S brings beautiful context to your full-frame lens arsenal. Its angle of view excels at landscape and wide interior shooting, while its speed makes it superb for environmental portraits with lush, soft backgrounds and low light shots that are sharp and clean with faithful point light reproduction. And the NIKKOR Z 20mm f/1.8 S is truly cinematic with video enhancements that ensure silent autofocusing without breathing, and smooth aperture and ISO control.

Premium NIKKOR S-Line lenses are known for their stunning resolution, elaborate detail and impeccable build quality. The NIKKOR Z 20mm f/1.8 S is no exception. With an ultra-wide 20mm field of view and a brilliant f/1.8 maximum aperture, so much more of a scene can be captured with exceptional point-light clarity and minimal distortion.

With its gorgeous artistic qualities and natural, wide perspective, the NIKKOR Z 20mm f/1.8 S is exceptional for video work in tight spaces or anywhere you want your subject to pop. Autofocusing is fast and silent with minimal focus breathing. Aperture control is smooth as silk. And the customizable control ring can be used to quietly create fluid iris transitions or ISO changes on the fly.

The ultra-wide 20mm focal length is embraced by pro photographers for capturing more of the story they're trying to tell. Expansive landscapes, scene-setting interiors, unique environmental portraiture—all with more context and less edge distortion than similar shots at longer focal lengths.

The fast, wide f/1.8 aperture of the NIKKOR Z 20mm f/1.8 S produces remarkably sharp images when available light is in short supply. Its speed and light gathering capability enable the use of faster shutter speeds when shooting indoors, at night or when shooting handheld.

Beautifully blurred backgrounds naturally direct the viewer’s eyes to the main subject. Attached to the largest full frame mount in the industry, the nine rounded aperture blades of the NIKKOR Z 20mm f/1.8 S give defocused points of light a soft, round, consistent shape.

3 Extra-low Dispersion (ED) elements correct chromatic aberrations (optical color defects). Nano Crystal Coat (N) virtually eliminates flare, ghosting and coma. And optical advancements of the Z mount and S-Line render point-light sources sharper than ever without the usual diamond-shaped distortion—perfect for environmental portraits, nightscapes and more.

One of the many advantages of the larger Z mount is its ability to retain even illumination, especially at the corners of the frame. This results in bright, even exposures with minimal vignetting.

Finely detailed high resolution photography can sometimes be susceptible to lens aberrations, such as color fringing, especially at close ranges. The NIKKOR Z 20mm f/1.8 S incorporates an all-new multi-focusing system, consisting of two AF drive units precisely synchronized to deliver fast, accurate autofocusing and drastically reduce aberrations, even when focusing close to your subject.

Powered by an ultra-quiet stepping motor and enhanced by the additional light gathered by the Z Mount, focusing is fast, silent and accurate. Great for stills; even better for video.

Extensively sealed to keep dust and moisture out, especially around all moving parts of the lens barrel, for worry-free durability.

Uses Z cameras' superior in-camera image stabilization system for up to 5 stops of pitch, roll, yaw, X and Y shake correction when used with Z cameras that feature in-camera VR. Additional electronic VR (e-VR) during video capture.

The control ring can be used for quiet aperture control (great for iris transitions during video recording or situations where complete silence is critical), exposure compensation or ISO adjustments.

Typical application

Class:

Fast full-frame ultra-wide angle prime lens • Professional model (Top class)

Professional model (Top class)

  • Combination of focal length and speed meets professional demands
  • Dust-proof and water-resistant barrel
  • Stepping motor (Multi-Focus System)

Genres or subjects of photography (5):

Landscapes • Cityscapes • Buildings • Interiors • Travel photography

Recommended slowest shutter speed when shooting static subjects handheld:

1/20th of a second

Subscribe
Notify of
guest

Copy this code

and paste it here *

0 comments
Inline Feedbacks
View all comments

Copyright © 2012-2022 Evgenii Artemov. All rights reserved. Translation and/or reproduction of website materials in any form, including the Internet, is prohibited without the express written permission of the website owner.

35mm full frame

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

Stepping motor (Multi-Focus System)

The lens incorporates focusing system consisting of two autofocus drive units precisely synchronized to deliver fast and accurate autofocusing.

A - M

AAutofocus mode.
MManual focus mode.

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.

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, 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.

Fixed focus

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

Internal focusing (IF)

Conventional lenses employ an all-group shifting system, in which all lens elements shift during focusing. The IF system, however, shifts only part of the optics during focusing. The advantages of the IF system are:

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/1.8 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.