Sigma 120-300mm f/2.8 EX DG OS APO HSM Pentax-k

$3,199
120-300 mm
autofocus 2.5x zoom lens
f/2.8
fixed aperture Sigma OS Image stabilized Sigma HSM Built in focus motor

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
11.3 - 4.5°
182.5-455.5mm
35mm equivalent focal length

Pros

The Sigma 120-300mm f/2.8 EX DG OS APO HSM Pentax-k vs other Pentax K lenses

	Fixed aperture
	The same aperture at all focal lengths

	Silent focus motor
	Silent and fast

	Telephoto lens
	300 mm

	More advanced image stabilization
	Sigma OS

Cons

The Sigma 120-300mm f/2.8 EX DG OS APO HSM Pentax-k vs other Pentax K lenses

	Quite heavy
	2.9 kg

	Poor wide angle lens
	120 mm

	Expensive
	$3,199.00

The Sigma 120-300mm f/2.8 EX DG OS APO HSM Pentax-k vs other Pentax K sports lenses

	Zoom lens
	Typically not as sharp as prime lenses

	Poor macro
	1:8.3 (0.1x)

Specifications

General

	Min focal length	120 mm	below average
	Max focal length	300 mm	above average
	Zoom range	2.5x
	Magnification	1:8.3 (0.1x)	below average
Aperture

	Wide minimum	f/2.8
	Wide maximum	Unknown
	Tele minimum	f/2.8	above average
	Tele maximum	Unknown
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	Pentax K
	Length	Unknown
	Diameter	Unknown
	Filter size	Unknown
	Weight	2.9 kg	below average
Angle of view

	Wide horizontal	11.2°	below average
	Telephoto horizontal	4.5°	above average
	Wide vertical	7.5°	below average
	Telephoto vertical	3°	above average
	Wide diagonal	13.5°	below average
	Telephoto diagonal	5.4°	above average

DiscussionWhat do you think about the Sigma 120-300mm f/2.8 EX DG OS APO HSM Pentax-k lens?

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Sigma 120-300mm f/2.8 EX DG OS APO HSM Pentax-k

compatibilitywith digital cameras

APS-C (1.5x crop factor)

Pros

The Sigma 120-300mm f/2.8 EX DG OS APO HSM Pentax-k vs other Pentax K lenses

Cons

The Sigma 120-300mm f/2.8 EX DG OS APO HSM Pentax-k vs other Pentax K lenses

The Sigma 120-300mm f/2.8 EX DG OS APO HSM Pentax-k vs other Pentax K sports lenses

Specifications

General

Aperture

Features

Form factor

Angle of view

DiscussionWhat do you think about the Sigma 120-300mm f/2.8 EX DG OS APO HSM Pentax-k lens?

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