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Samyang 20mm F1.8 ED AS UMC Sony/Minolta Alpha Review

Main Features

  • 20mm Focal Range
  • F1.8 Max Aperture
  • Filter Thread: 77mm
  • Max Format: 35mm FF
  • Sony Alpha 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. When mounted on a 35mm FF sensor camera, it will give you an FF equivalent focal range of 20mm. Providing a max aperture of f1.8 at 20mm, this lens is very fast.
Samyang 20mm F1.8 is not a weather sealed lens, so you have to be extra careful against rain and dust.

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 Sony Alpha
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 Sony Alpha Mount
Model Focal Length Max Aperture Weight Focusing
Sony 16mm F2.8 Fisheye 16mm F2.8 400gr AF
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Sony 20mm F2.8 20mm F2.8 285gr AF
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Sony 24mm F2 SSM Carl Zeiss Distagon T 24mm F2.0 555gr AF
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Samyang 16mm f2.0 ED AS UMC CS 16mm F2.0 583gr MF
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Samyang 24mm f1.4 ED AS UMC 24mm F1.4 580gr MF
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Samyang T-S 24mm f3.5 ED AS UMC 24mm F3.5 680gr MF
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Sigma 20mm F1.8 EX DG Aspherical RF 20mm F1.8 520gr AF
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Sigma 24mm F1.8 EX DG Aspherical Macro 24mm F1.8 485gr AF
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Rokinon 24mm f1.4 Aspherical 24mm F1.4 580gr MF
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Rokinon T-S 24mm f3.5 ED AS UMC 24mm F3.5 680gr MF
Compare with Samyang 20mm F1.8 ED AS UMC
Other 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
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