Sigma 20mm f/1.8 EX DG DF RF

$629
20 mm
autofocus prime lens
f/1.8

reviewswhat are people saying


Rated 4 out of 5 stars by 1 users at B&H Photo Video

"This is a well constructed fairly sharp lens."

"I use it often. It is quite respectable at 1.8 and gets better from there."

compatibilitywith digital cameras

APS-C (1.5x crop factor)

This lens is compatible with APS-C (1.5x crop factor) cameras such as the Sigma SD1.

horizontal angle of view
60.9°
30.5mm
35mm equivalent focal length

Pros

The Sigma 20mm f/1.8 EX DG DF RF vs other Sigma SA lenses

	Prime lens
	Typically very sharp

	Quite short
	86 mm

	Great wide angle lens
	20 mm

	Very light
	0.5 kg

	Wide aperture
	f/1.8

Cons

The Sigma 20mm f/1.8 EX DG DF RF vs other Sigma SA lenses

	Poor telephoto lens
	20 mm

	Below average zoom range
	1x

	Lacks a silent focus motor
	Louder and slower

	No image stabilization
	Risk of blur

Specifications

General

	Min focal length	20 mm
	Max focal length	20 mm	below average
	Zoom range	1x	below average
	Magnification	1:4 (0.2x)
Aperture

	Wide minimum	f/1.8	above average
	Wide maximum	f/22
	Tele minimum	f/1.8	above average
	Tele maximum	f/22
Features

	Auto focus	Yes
	Focus motor	None	below average
	Image stabilization	None
	Fisheye	No
	Tilt-shift	No
Form factor

	Lens mount	Sigma SA
	Length	86 mm
	Diameter	89 mm
	Filter size	82 mm
	Weight	0.5 kg
Angle of view

	Wide horizontal	54.7°
	Telephoto horizontal	54.7°
	Wide vertical	38.1°
	Telephoto vertical	38.1°
	Wide diagonal	63.8°
	Telephoto diagonal	63.8°	below average

DiscussionWhat do you think about the Sigma 20mm f/1.8 EX DG DF RF lens?

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Sigma 20mm f/1.8 EX DG DF RF

reviewswhat are people saying

compatibilitywith digital cameras

APS-C (1.5x crop factor)

Pros

The Sigma 20mm f/1.8 EX DG DF RF vs other Sigma SA lenses

Cons

The Sigma 20mm f/1.8 EX DG DF RF vs other Sigma SA lenses

Specifications

General

Aperture

Features

Form factor

Angle of view

DiscussionWhat do you think about the Sigma 20mm f/1.8 EX DG DF RF lens?

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