Sigma 10-20mm f/4-5.6 EX DC Pentax-k

$479
10-20 mm
autofocus 2x zoom lens
f/4-5.6
variable aperture

reviewswhat are people saying


Rated 4.5 out of 5 stars by 21 users at B&H Photo Video

"This is the lens I have been looking for all these years for nice architecture pictures."

"Awesome - gets the whole mountain scene in the photo. Light weight and very easy to focus with."

"The only point about this lens is the construction, it doesn't give me a solid feeling."

compatibilitywith digital cameras

APS-C (1.5x crop factor)

This lens is compatible with APS-C (1.5x crop factor) cameras such as the Pentax K-30, Pentax K-5 and Pentax K-5 II.

horizontal angle of view
99.7 - 61.3°
15-30.5mm
35mm equivalent focal length

Pros

Cons

The Sigma 10-20mm f/4-5.6 EX DC Pentax-k vs other Pentax K lenses

	Variable aperture
	Narrower aperture at longer focal lengths

	Poor macro
	1:6.7 (0.1x)

	Narrow aperture
	f/4

	Zoom lens
	Typically not as sharp as prime lenses

	Poor telephoto lens
	20 mm

	Lacks a silent focus motor
	Louder and slower

The Sigma 10-20mm f/4-5.6 EX DC Pentax-k vs other Pentax K wide angle lenses

	Below average zoom range
	2x

Specifications

General

	Min focal length	10 mm	above average
	Max focal length	20 mm	below average
	Zoom range	2x
	Magnification	1:6.7 (0.1x)	below average
Aperture

	Wide minimum	f/4	below average
	Wide maximum	f/22
	Tele minimum	f/5.6	below 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	Pentax K
	Length	81 mm
	Diameter	84 mm
	Filter size	77 mm
	Weight	470 g
Angle of view

	Wide horizontal	99.4°	above average
	Telephoto horizontal	61.1°	below average
	Wide vertical	76.3°	above average
	Telephoto vertical	42.9°	below average
	Wide diagonal	109.6°	above average
	Telephoto diagonal	70.6°	below average

DiscussionWhat do you think about the Sigma 10-20mm f/4-5.6 EX DC Pentax-k lens?

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Sigma 10-20mm f/4-5.6 EX DC Pentax-k

reviewswhat are people saying

compatibilitywith digital cameras

APS-C (1.5x crop factor)

Pros

Cons

The Sigma 10-20mm f/4-5.6 EX DC Pentax-k vs other Pentax K lenses

The Sigma 10-20mm f/4-5.6 EX DC Pentax-k vs other Pentax K wide angle lenses

Specifications

General

Aperture

Features

Form factor

Angle of view

DiscussionWhat do you think about the Sigma 10-20mm f/4-5.6 EX DC Pentax-k lens?

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