Sigma 4.5mm f/2.8 EX DC HSM Sony-alpha

$799
4.5 mm
autofocus prime lens
f/2.8
Designed for APS-C Sony Alpha DT Sigma HSM Built in focus motor Fisheye circular wide angle

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
180°
7mm
35mm equivalent focal length

Pros

The Sigma 4.5mm f/2.8 EX DC HSM Sony-alpha vs other Sony Alpha DT lenses

	Fisheye
	Extremely wide circular images

	Silent focus motor
	Silent and fast

	Prime lens
	Typically very sharp

Cons

The Sigma 4.5mm f/2.8 EX DC HSM Sony-alpha vs other Sony Alpha DT lenses

	Poor telephoto lens
	4.5 mm

	Poor zoom range
	1x

Specifications

General

	Min focal length	4.5 mm	above average
	Max focal length	4.5 mm	below average
	Zoom range	1x	below average
	Magnification	1:6 (0.2x)
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	None
	Fisheye	Yes	unique
	Tilt-shift	No
Form factor

	Lens mount	Sony Alpha DT
	Length	78 mm
	Diameter	76 mm
	Filter size	Unknown
	Weight	470 g
Angle of view

	Wide horizontal	180°	unique
	Telephoto horizontal	180°	below average
	Wide vertical	180°	unique
	Telephoto vertical	180°	below average
	Wide diagonal	180°	unique
	Telephoto diagonal	180°	below average

DiscussionWhat do you think about the Sigma 4.5mm f/2.8 EX DC HSM Sony-alpha lens?

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Sigma 4.5mm f/2.8 EX DC HSM Sony-alpha

compatibilitywith digital cameras

APS-C (1.5x crop factor)

Pros

The Sigma 4.5mm f/2.8 EX DC HSM Sony-alpha vs other Sony Alpha DT lenses

Cons

The Sigma 4.5mm f/2.8 EX DC HSM Sony-alpha vs other Sony Alpha DT lenses

Specifications

General

Aperture

Features

Form factor

Angle of view

DiscussionWhat do you think about the Sigma 4.5mm f/2.8 EX DC HSM Sony-alpha lens?

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