20mm F1.8 Full Frame Wide Angle - Rokinon Lenses - RK20M-C

20mm F1.8 Full Frame Wide Angle

Name: 20mm F1.8 Full Frame Wide Angle
Brand: Rokinon
SKU: RK20M-C
Price: 449.0 USD
Availability: InStock

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)

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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 Name		20mm F1.8 ED AS UMC
Aperture Range		F1.8 ~ 22
Optical Construction		13 Elements in 12 Groups
Minimum Focusing Distance		0.2m (0.66ft)
Filter Size		77.0mm
Maximum Diameter		83.0mm
Mount		Canon EF	Nikon F	Pentax K	Sony A	Canon M	Fujifilm X	Samsung NX	Sony E	MFT
Angle of View	35mm	94.8˚	94.8˚	94.8˚	94.8˚	-	-	-	94.8˚	-
	APS-C	66.9˚	70.3˚	70.3˚	70.3˚	66.9˚	70.3˚	70.3˚	70.3˚	-
	Four-Thirds (4/3")	-	-	-	-	-	-	-	-	56.1˚
Length		88.4mm	85.9mm	86.9mm	87.9mm	114.3mm	114.7mm	106.9mm	114.4mm	113.2mm
Weight		497g	488g	493g	498g	525g	565g	515g	525g	520g

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.