20mm F1.8 Full Frame Wide Angle - Rokinon
20mm F1.8 Full Frame Wide Angle
20mm F1.8 Full Frame Wide Angle - Rokinon
20mm F1.8 Full Frame Wide Angle - Rokinon
20mm F1.8 Full Frame Wide Angle - Rokinon
20mm F1.8 Full Frame Wide Angle - Rokinon
20mm F1.8 Full Frame Wide Angle - Rokinon
20mm F1.8 Full Frame Wide Angle - Rokinon
20mm F1.8 Full Frame Wide Angle - Rokinon
20mm F1.8 Full Frame Wide Angle - Rokinon
20mm F1.8 Full Frame Wide Angle - Rokinon

20mm F1.8 Full Frame Wide Angle

RK20M-C

Regular price$457.52
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Mount

Model: RK20M-C

UPC: 0-84438-76531-1

Focal Length: 20mm

Maximum Aperture: F1.8

Coverage: Full Frame

Optical Construction: 13 Glass Element 12 Groups

Aperture Range: F1.8 to F22

Diaphragm Blades: 7

Coating: Ultra Multi-Coating

Minimum Focusing Distance: 0.66ft (0.2m)

Filter Size: 77mm

Lens Hood: Removable Petal Shaped

Maximum Diameter: 3.27" (83mm)

Weight: 17.53oz (497g)

Length: 3.48" (88.4mm)

Model: RK20M-FX

UPC: 0-84438-76533-5

Focal Length: 20mm

Maximum Aperture: F1.8

Coverage: Full Frame

Optical Construction: 13 Glass Element 12 Groups

Aperture Range: F1.8 to F22

Diaphragm Blades: 7

Coating: Ultra Multi-Coating

Minimum Focusing Distance: 0.66ft (0.2m)

Filter Size: 77mm

Lens Hood: Removable Petal Shaped

Maximum Diameter: 3.27" (83mm)

Weight: 19.92oz (565g)

Length: 4.51" (114.7mm)

Model: RK20M-MFT

UPC: 0-84438-76534-2

Focal Length: 20mm

Maximum Aperture: F1.8

Coverage: Full Frame

Optical Construction: 13 Glass Element 12 Groups

Aperture Range: F1.8 to F22

Diaphragm Blades: 7

Coating: Ultra Multi-Coating

Minimum Focusing Distance: 0.66ft (0.2m)

Filter Size: 77mm

Lens Hood: Removable Petal Shaped

Maximum Diameter: 3.27" (83mm)

Weight: 18.34oz (520g)

Length: 4.45" (113.2mm)

Model: RK20MAF-N

UPC: 0-84438-76530-4

Focal Length: 20mm

Maximum Aperture: F1.8

Coverage: Full Frame

Optical Construction: 13 Glass Element 12 Groups

Aperture Range: F1.8 to F22

Diaphragm Blades: 7

Coating: Ultra Multi-Coating

Minimum Focusing Distance: 0.66ft (0.2m)

Filter Size: 77mm

Lens Hood: Removable Petal Shaped

Maximum Diameter: 3.27" (83mm)

Weight: 17.21oz (488g)

Length: 3.38" (85.9mm)

Model: RK20M-P

UPC: 0-84438-76533-5

Focal Length: 20mm

Maximum Aperture: F1.8

Coverage: Full Frame

Optical Construction: 13 Glass Element 12 Groups

Aperture Range: F1.8 to F22

Diaphragm Blades: 7

Coating: Ultra Multi-Coating

Minimum Focusing Distance: 0.66ft (0.2m)

Filter Size: 77mm

Lens Hood: Removable Petal Shaped

Maximum Diameter: 3.27" (83mm)

Weight: 17.39oz (493g)

Length: 3.42" (86.9mm)

Model: RK20M-E

UPC: 0-84438-76532-8

Focal Length: 20mm

Maximum Aperture: F1.8

Coverage: Full Frame

Optical Construction: 13 Glass Element 12 Groups

Aperture Range: F1.8 to F22

Diaphragm Blades: 7

Coating: Ultra Multi-Coating

Minimum Focusing Distance: 0.66ft (0.2m)

Filter Size: 77mm

Lens Hood: Removable Petal Shaped

Maximum Diameter: 3.27" (83mm)

Weight: 18.51oz (525g)

Length: 4.50" (114.4mm)

※ This product image is a Canon EF mount lens. Size and design may vary depending on the mount of a lens

The Rokinon 20mm F1.8 ED AS UMC Lens is a bright wide-angle prime featuring an intuitive manual focus design and enhanced optical construction. Two aspherical elements and three extra-low dispersion elements are used to reduce both spherical and chromatic aberrations for greater sharpness, clarity, and reduced distortion. The optics also feature an Ultra Multi-Coating to guard against lens flare and ghosting for increased contrast and color neutrality when working in strong lighting conditions. The manual focus operation affords working with subjects as close as 7.9" away, and a rounded seven-blade diaphragm contributes to a pleasing bokeh quality.

  • A wide-angle prime designed for full-frame DSLR cameras, this 20mm f/1.8 lens can also be used on APS-C models where it will provide a 32mm equivalent focal length.
  • Bright f/1.8 maximum aperture benefits working in low-light conditions and also affords greater control over depth of field for selective focus control.
  • Two aspherical elements are used to reduce spherical aberrations for increased sharpness and minimized distortion.
  • Three extra-low dispersion elements help to control chromatic aberrations and color fringing for improved clarity and color fidelity.
  • An Ultra Multi-Coating has been applied to individual elements in order to reduce flare and ghosting for increased contrast and a neutral color balance.
  • Manual focus operation allows for precise control with a minimum focusing distance of 7.9".
  • Rounded seven-blade diaphragm contributes to a smooth and pleasing bokeh quality.

User Manual Download

Specifications

Model Name20mm F1.8 ED AS UMC
Aperture RangeF1.8 ~ 22
Optical Construction13 Elements in 12 Groups
Minimum Focusing Distance0.2m (0.66ft)
Filter Size77.0mm
Maximum Diameter83.0mm
MountCanon EFNikon FPentax KFujifilm XSony EMFT
Angle of View35mm94.8˚94.8˚94.8˚-94.8˚-
APS-C66.9˚70.3˚70.3˚70.3˚70.3˚-
Four-Thirds (4/3")-----56.1˚
Length88.4mm85.9mm86.9mm114.7mm114.4mm113.2mm
Weight497g488g493g565g525g520g

MTF Chart

Optical Construction

Features

Bright F1.8 Aperture

With a bright aperture of F1.8, it maintains shutter speed in indoor and low light conditions and ensures instant response creating an out-of-focus effect to make the subject stand out.

Aspherical Lens

With minimal spherical aberration and distortion, you can take pictures with incredible precision.

Minimized Flare and Ghost Effects with Ultra Multi Coating

By reducing the impact of flares and ghosting effects in your pictures while ensuring excellent image quality and contrast from the center to the periphery, it offers crystal clear, sharp image quality.

Smooth Focus Ring

Smooth focusing ensures precise control and produces images with incredible sharpness, making it the ideal choice for indoor and night shooting.

Beautiful Bokeh with 7 Aperture Blades

Featuring 7 rounded blades, it adds an artistic touch to your pictures and creates a sense of soft dimension with incredible bokeh, perfect for out-of-focus portraits and night city landscapes.

94.8° Ultra Wide Angle

Ultra-wide angle allows to capture the creative space beyond what meets the eye and portray an expanded sense of dimension.

Sample Gallery