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Samyang 20mm F1.8 ED AS UMC Canon EF Review
Samyang 20mm F1.8 ED AS UMC

Main Features

  • 20mm Focal Range
  • F1.8 Max Aperture
  • Filter Thread: 77mm
  • Max Format: 35mm FF
  • Canon EF Mount
  • Weight: 497g.
  • Diameter: 83mm
  • Length: 88mm
  • Min Focus Distance:0.2m
    •
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Samyang 20mm F1.8 Overview
Samyang 20mm F1.8 is a Manual Focus (MF) Wideangle Prime lens with 35mm FF max sensor coverage and it is designed to be used with Canon EF mount lenses.

Lens Mount

Samyang 20mm F1.8 is compatible with cameras that have Canon EF lens mount.

Sensor Coverage

Max sensor coverage of Samyang 20mm F1.8 is 35mm FF.

Focal Range

Samyang 20mm F1.8 has a fixed focal lenght of 20mm. When mounted on a 35mm FF format camera, it provides an 35mm (FF) equivalent of 20mm.

Aperture

Samyang 20mm F1.8 has a max aperture of F1.8 and a minimum aperture of F22.
Pros and Cons of Samyang 20mm F1.8 ED AS UMC

PROs
Hood supplied
Full-time Manual Focusing
Fast Aperture
Covers Full-Frame Sensor

CONs
No Weather Sealing
No Autofocus
Samyang 20mm F1.8 Detailed Specifications

General
Brand Samyang
Lens Type Prime
Lens Type Wideangle Prime
Lens Mount Canon EF
Max Format 35mm FF
Focal Range 20mm
Image Stabilization
Colour Unknown
Zoom Method No Zoom
Power Zoom No Zoom
Zoom Lock No Zoom
Zoom Ratio 1.0X
APERTURE
Max Aperture F1.8
Min Aperture F22
Aperture Ring Yes
Diaphragm Blades 7
Optics
Optical Elements 13
Optical Groups 12
Special Elements Two aspherical + 3 ED elements, Ultra Multi Coating

FOCUSING
Min Focus Distance 0.2m
Max Magnification unknown
Autofocus No
AF Motor Type No AF
Full Time Manual Yes
Focus Method Internal
Distance Scale Yes
PHYSICAL SPECS
Weight 497g
Diameter 83mm
Length 88mm
Weather Sealing No
Filter Thread 77mm
Filter Notes -
Hood Supplied Yes
Tripod Collar No
Samyang 20mm F1.8 ED AS UMC Alternatives in Canon EF Mount
Model Coverage Weight Focusing Street Price
Canon EF 20mm f2.8 USM Lens Canon EF 20mm f2.8 USM
 35mm FF 405gr AF Amazon B&H Photo
Canon EF 24mm f1.4L II USM Lens Canon EF 24mm f1.4L II USM
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Canon EF 24mm f2.8 Lens Canon EF 24mm f2.8
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Canon EF 24mm f2.8 IS USM Lens Canon EF 24mm f2.8 IS USM
 35mm FF 280gr AF Amazon B&H Photo
Canon TS-E 17mm f4L Lens Canon TS-E 17mm f4L
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Canon TS-E 24mm f3.5L II Lens Canon TS-E 24mm f3.5L II
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Venus Laowa 24mm F14 2x Macro Probe Lens Venus Laowa 24mm F14 2x Macro Probe
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Samyang 24mm f1.4 ED AS UMC Lens Samyang 24mm f1.4 ED AS UMC
 35mm FF 580gr MF Amazon B&H Photo
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 35mm FF 205gr MF Amazon B&H Photo
Samyang T-S 24mm f3.5 ED AS UMC Lens Samyang T-S 24mm f3.5 ED AS UMC
 35mm FF 680gr MF Amazon B&H Photo
Carl Zeiss Distagon T 2,821 Lens Carl Zeiss Distagon T 2,821
 35mm FF 600gr MF Amazon B&H Photo
Sigma 24mm F1.4 DG HSM A Lens Sigma 24mm F1.4 DG HSM A
 35mm FF 665gr AF Amazon B&H Photo
Carl Zeiss Distagon T 3,518 Lens Carl Zeiss Distagon T 3,518
 35mm FF 470gr MF Amazon B&H Photo
Sigma 20mm F1.4 DG HSM A Lens Sigma 20mm F1.4 DG HSM A
 35mm FF 950gr AF Amazon B&H Photo
Sigma 20mm F1.8 EX DG Aspherical RF Lens Sigma 20mm F1.8 EX DG Aspherical RF
 35mm FF 520gr AF Amazon B&H Photo
Sigma 24mm F1.8 EX DG Aspherical Macro Lens Sigma 24mm F1.8 EX DG Aspherical Macro
 35mm FF 485gr AF Amazon B&H Photo
Rokinon 24mm f1.4 Aspherical Lens Rokinon 24mm f1.4 Aspherical
 35mm FF 580gr MF Amazon B&H Photo
Rokinon T-S 24mm f3.5 ED AS UMC Lens Rokinon T-S 24mm f3.5 ED AS UMC
 35mm FF 680gr MF Amazon B&H Photo
Zeiss Milvus 18mm F2.8 Lens Zeiss Milvus 18mm F2.8
 35mm FF 721gr MF Amazon B&H Photo
Frequently Asked Questions about Samyang 20mm F1.8 ED AS UMC
is the Samyang 20mm F1.8 ED AS UMC a Weather Sealed lens?
What is the Minimum Focusing Distance of Samyang 20mm F1.8 ED AS UMC
is the Samyang 20mm F1.8 ED AS UMC an Autofocus (AF) lens?
What is the Filter Thread Size of Samyang 20mm F1.8 ED AS UMC
Does Samyang 20mm F1.8 ED AS UMC have Image Stabilization?
Does Samyang 20mm F1.8 ED AS UMC have Aperture Ring?
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