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Nikon Nikkor AF-S 20mm f/1.8 G ED Lens

The Nikon 20mm f/1.8 G ED is a 20mm f/1.8 lens designed for Nikon F mount cameras. Used copies start from $446.3 on GearFocus, with buyer protection on every purchase.

Nikon Nikkor AF-S 20mm f/1.8 G ED Lens

Nikon Nikkor AF-S 20mm f/1.8 G ED Lens

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Nikon Nikkor AF-S 20mm f1.8 G ED Lens

Condition: Excellent

Product Highlights

  • Wide 20mm focal length
  • Bright f/1.8 maximum aperture
  • Extra-low Dispersion (ED) glass elements
  • Nano Crystal Coating for reduced flare

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Nikon Nikkor AF-S 20mm f1.8 G ED Lens
Nikon Nikkor AF-S 20mm f1.8 G ED Lens

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$446.30

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Nikon Nikkor AF-S 20mm f1.8 G ED Lens
Nikon Nikkor AF-S 20mm f1.8 G ED Lens

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Lens Overview — Nikon 20mm f/1.8 G ED

The Nikon Nikkor AF-S 20mm f/1.8 G is a wide-angle prime lens designed for full-frame Nikon F-mount DSLR cameras. Built around a fixed 20mm focal length, it offers a fast maximum aperture of f/1.8, making it a capable choice for photographers who frequently work in challenging lighting situations or want meaningful control over depth of field at wide angles. As a prime lens, it brings a degree of optical simplicity that zoom lenses cannot match, and the f/1.8 maximum aperture puts it in a select category of fast wide-angle options.

The lens supports both autofocus and manual focus operation, giving shooters flexibility depending on the shooting scenario. Mounting via the Nikon F system, it is compatible with a wide range of Nikon DSLR bodies. A 77mm filter thread is a practical consideration for landscape and architectural photographers who regularly use graduated ND, polarizing, or other filters — and 77mm is a common size that fits into many existing filter kits.

Weighing just 355g, the lens is notably compact and travel-friendly for a full-frame wide-angle prime at this aperture. No image stabilization is present, which is worth noting for handheld shooting in low light, though the f/1.8 aperture helps compensate by allowing faster shutter speeds.

Key Features — Nikon 20mm f/1.8 G ED

20mm f/1.8 Prime: A fixed 20mm focal length with a fast f/1.8 maximum aperture, making it one of the faster wide-angle primes available for Nikon F-mount.

Full-Frame Coverage: Designed for full-frame Nikon F-mount DSLRs, delivering a true 94-degree angle of view with no vignetting concerns on bodies like the D800 or D750.

Nano Crystal Coat: Nikon's proprietary anti-reflective coating reduces ghosting and flare, which is especially useful when shooting toward strong light sources at wide angles.

ED Glass Elements: Extra-low dispersion glass elements minimize chromatic aberration for sharper, higher-contrast images across the frame.

Silent Wave Motor AF: Internal AF-S autofocus motor provides fast, quiet autofocus without relying on the camera body's drive mechanism.

Auto / Manual Focus: Full-time manual focus override allows instant switching between AF and MF without changing any settings.

Lens Specifications — Nikon 20mm f/1.8 G ED

Nikon 20mm f/1.8 G ED full specifications
SpecDetail
Use CasesLandscape, Architecture, Astrophotography, Travel
Lens TypeWide-Angle
FormatFull Frame
Zoom/PrimePrime
Focal Length20mm
Maximum Aperturef/1.8
Camera SystemDSLR
Lens MountNikon F
AutofocusYes
Focus TypeAuto, Manual
Image StabilizationNone
Filter Thread77mm

Description — Nikon 20mm f/1.8 G ED

The Nikon Nikkor AF-S 20mm f/1.8 G is a wide-angle prime lens built for full-frame Nikon F-mount DSLR cameras. With a fixed 20mm focal length and a fast f/1.8 maximum aperture, it is well-suited for landscape, architecture, and environmental photography where both width of view and low-light capability matter. The lens supports autofocus and manual focus operation, allowing photographers to switch between modes depending on their subject and conditions.

At 355g, it is a lightweight option in the wide prime category, making it easy to carry on extended shoots or when traveling light. The 77mm filter thread is a practical feature for photographers who rely on front-mounted filters, as this size is broadly compatible with many filter systems. As a prime lens with no zoom functionality, it rewards photographers who are comfortable working with a fixed perspective. No image stabilization is included, so technique and the available f/1.8 aperture become important tools for managing camera shake.

Pros — Nikon 20mm f/1.8 G ED

  • ✓Fast f/1.8 maximum aperture enables strong low-light performance and depth-of-field control at a wide 20mm focal length
  • ✓Full-frame coverage (lensFormat: Full Frame) means no crop concerns when used on full-frame Nikon F-mount bodies
  • ✓Supports both autofocus and manual focus (focusType: Auto, Manual), offering versatility across shooting styles

Cons — Nikon 20mm f/1.8 G ED

  • ✗No image stabilization (imageStabilization: None), which can be a limitation during slow-shutter handheld shooting despite the wide angle
  • ✗Fixed 20mm focal length offers no zoom flexibility, requiring the photographer to reframe by moving
  • ✗Limited to Nikon F mount only, with no native compatibility for mirrorless or other DSLR systems without an adapter

Reviews — Nikon 20mm f/1.8 G ED

Videos — Nikon 20mm f/1.8 G ED

Nikon 20mm f1.8G review with sample images — Matt Granger

Resources & Downloads — Nikon 20mm f/1.8 G ED

Manuals & Guides

Frequently Asked Questions — Nikon 20mm f/1.8 G ED

What camera mount does this lens use?+
This lens uses the Nikon F mount, making it compatible with Nikon F-mount DSLR cameras. It is designed specifically for the DSLR camera system and is not a native mirrorless mount lens.
Does this lens work on full-frame cameras?+
Yes. The lens format is specified as Full Frame, meaning it is designed to cover a full-frame image circle without vignetting on compatible full-frame Nikon F-mount bodies.
Does this lens have image stabilization?+
No. The specifications list image stabilization as None. Photographers shooting handheld in low light will need to rely on the f/1.8 aperture to allow faster shutter speeds rather than optical stabilization.
What filter size does this lens accept?+
The lens has a 77mm filter thread. This is a common filter diameter, so photographers with existing 77mm circular polarizers, ND filters, or UV filters can use them directly without step-up rings.
Does this lens support autofocus?+
Yes. The lens supports autofocus and can also be switched to manual focus. Both Auto and Manual are listed under focusType in the specifications.
How heavy is this lens?+
The lens weighs 355g, making it relatively compact and lightweight for a full-frame wide-angle prime with an f/1.8 maximum aperture. This makes it a practical travel companion.

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