Nikon's fastest ultra-wide-angle lens yet.
Technology
AS
AS stands for Aspherical lens elements. This type of lens utilizes non-spherical surfaces on either one or both sides of the glass in order to eliminate certain types of lens aberration.
ED (Extra-Low Dispersion) Glass
An optical glass developed by Nikon that is used with normal optical glass in telephoto lenses to obtain optimum correction of chromatic aberrations.
Nano Crystal Coat
An anti-reflective coating developed by Nikon that virtually eliminates internal lens element reflections across a wide range of wavelengths. Nano Crystal Coat solves ghost effects caused by red light and effectively reduces ghost and flare caused by light entering the lens diagonally.
Rear Focusing System
A system in which only the rear lens group moves during focusing, thus eliminating changes in the physical length of the lens during focusing and enabling faster focusing. Such lenses are designated with RF on the lens barrel.
Silent Wave Motor
AF-S NIKKOR lenses feature Nikon’s Silent Wave Motor (SWM). This technology converts “traveling waves” into rotational energy to focus the optics. This enables high-speed autofocusing that's extremely accurate and super quiet.
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Tech Specs
Focal Length
20mmMaximum Aperture
f/1.8Format
FX/35mmNano Crystal Coat
YesAF-S (Silent Wave Motor)
YesApprox. Dimensions (Diameter x Length)
3.2 in.82.5 mmx3.1 in.80.5 mmApprox. Weight
12.6 oz.355 g
- Mount TypeNikon F-Bayonet
- Focal Length20mm
- Maximum Aperturef/1.8
- Minimum Aperturef/16
- FormatFX/35mm
- Maximum Angle of View (DX-format)70°
- Maximum Angle of View (FX-format)94°
- Maximum Reproduction Ratio0.23xx
- Lens Construction Elements13
- Lens Construction Groups11
- Compatible Format(s)FX, DX
- Diaphragm Blades7
- Distance InformationYes
- Nano Crystal CoatYes
- ED Glass Elements2
- Aspherical Elements2
- Super Integrated CoatingYes
- AutofocusYes
- AF-S (Silent Wave Motor)Yes
- Minimum Focus Distance0.66 ft.(0.2m)
- Focus ModeAuto, Manual
- Rear FocusingYes
- G-typeYes
- Filter Size77mm
- Accepts Filter TypeScrew-on
- Approx. Dimensions (Diameter x Length)3.2 in.82.5 mmx3.1 in.80.5 mm
- Approx. Weight12.6 oz.355 g
- Lens TypePrime
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