N°412307 · Family detail
SamyangWide·NIKON F mount·2016
Samyang 20mm F/1.8 ED AS UMC SLR
Specifications01
MountNIKON F
Focal length20mm
Max aperturef/1.8
TypeWide · Prime
Release year2016
Weight488 g
Filter size77 mm
Physical length85.9 mm
Barrel diameter83 mm
Min focus distance0.2 m
Aperture blades7
Optical elements13
Groups12
Weather sealedNo
Aperture controlAperture ring (Manual settings + Auto Exposure setting)
Lens hoodBayonet-type petal-shaped
TeleconvertersNot available
Sensor coverage35mm full frame
Production statusIn production
Additional Info02
ClassFast full-frame ultra-wide angle prime lens
Focus TypeAutofocus
Focus ModesManual focus only
Angle Of View70.5°
Original Name<No data>
Detail HeadingSamyang 20mm F/1.8 ED AS UMC SLR
Diaphragm TypeAutomatic (A)
Equiv ApertureF/2.8 (in terms of depth of field)
Fluorine CoatingNo
Mount And FlangeNikon F [46.5mm]
Country Of DesignROK (Republic of Korea)
Equiv Focal Length30.6mm (in terms of field of view)
Manual Focus ControlFocusing ring
Summary02
Samyang 20mm f/1.8 wide-angle prime for Nikon F, suitable for landscapes, interiors, and low-light shooting. It offers a bright maximum aperture for subject separation and available-light use.
AI-assisted summary — verify against linked sourcesWhere can this lens be adapted?
The Nikon F mount has a flange distance of 46.5 mm. A plain adapter fits a camera whose flange distance is at least 1.46 mm shorter. How lens adapters work
- Nikon G lenses have no aperture ring: use an adapter with an aperture lever. Nikon E lenses set the aperture electronically: use an electronic adapter.
- Sony EAdapter · 28.5 mm
- Canon RFAdapter · 26.5 mm
- Nikon ZAdapter · 30.5 mm
- Fujifilm XAdapter · 28.8 mm
- L-MountAdapter · 26.5 mm
- Micro Four ThirdsAdapter · 27.25 mm
- Fujifilm G (GFX)Adapter · 19.8 mm
Covers full-frame: it can vignette on a medium format sensor.
- Canon EF-MAdapter · 28.5 mm
- Canon EFAdapter · 2.5 mm
A rear element that sticks out can hit the camera mirror.
- Nikon FNative
Sources03
lens-db.comVisit ↗
Other Mounts03
No alternate mounts are indexed for this family yet.