Sigma 17-50mm f/2.8 EX DC OS HSM Sony-alpha

$669
17-50 mm
autofocus 2.9x zoom lens
f/2.8
fixed aperture Designed for APS-C Sony Alpha DT Sigma OS Image stabilized Sigma HSM Built in focus motor

reviewswhat are people saying


Rated 5 out of 5 stars by 3 users at B&H Photo Video

"Sigma's new Optical Stabilizer is very effective. Focus is pretty much instantaneous, and silent."

"The lens feels very solid and well made."

"At f/2.8, the central sharpness is great but the corners/edges are not that outstanding."

compatibilitywith digital cameras

APS-C (1.5x crop factor)

This lens is compatible with APS-C (1.5x crop factor) cameras such as the Sony SLT A57, Sony SLT A77 and Sony SLT A65.

horizontal angle of view
69.3 - 26.4°
26-76.5mm
35mm equivalent focal length

Pros

The Sigma 17-50mm f/2.8 EX DC OS HSM Sony-alpha vs other Sony Alpha DT lenses

	Fixed aperture
	The same aperture at all focal lengths

	Silent focus motor
	Silent and fast

	Wide aperture
	f/2.8

	More advanced image stabilization
	Sigma OS

Cons

The Sigma 17-50mm f/2.8 EX DC OS HSM Sony-alpha vs other Sony Alpha DT wide angle lenses

	Below average zoom range
	2.9x

Specifications

General

	Min focal length	17 mm
	Max focal length	50 mm	below average
	Zoom range	2.9x
	Magnification	Unknown
Aperture

	Wide minimum	f/2.8
	Wide maximum	f/22
	Tele minimum	f/2.8	above average
	Tele maximum	f/22
Features

	Auto focus	Yes
	Focus motor	Sigma HSM	above average
	Image stabilization	Sigma OS	above average
	Fisheye	No
	Tilt-shift	No
Form factor

	Lens mount	Sony Alpha DT
	Length	Unknown
	Diameter	Unknown
	Filter size	77 mm
	Weight	0.6 kg
Angle of view

	Wide horizontal	69.5°
	Telephoto horizontal	26.6°
	Wide vertical	49.3°
	Telephoto vertical	17.7°
	Wide diagonal	79.5°
	Telephoto diagonal	31.6°

DiscussionWhat do you think about the Sigma 17-50mm f/2.8 EX DC OS HSM Sony-alpha lens?

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Sigma 17-50mm f/2.8 EX DC OS HSM Sony-alpha

reviewswhat are people saying

compatibilitywith digital cameras

APS-C (1.5x crop factor)

Pros

The Sigma 17-50mm f/2.8 EX DC OS HSM Sony-alpha vs other Sony Alpha DT lenses

Cons

The Sigma 17-50mm f/2.8 EX DC OS HSM Sony-alpha vs other Sony Alpha DT wide angle lenses

Specifications

General

Aperture

Features

Form factor

Angle of view

DiscussionWhat do you think about the Sigma 17-50mm f/2.8 EX DC OS HSM Sony-alpha lens?

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