Pentax SMC DA 17-70mm f/4 AL SDM

$597
17-70 mm
autofocus 4.1x zoom lens
f/4
fixed aperture Pentax SDM Built in focus motor

reviewswhat are people saying


Rated 4.5 out of 5 stars by 16 users at B&H Photo Video

"Great lens. Renders sharp images with wonderful colors"

"The lens is well-made, the SDM focusing is fast and quiet (used on a Pentax K20D), images are sharp throughout the zoom range, the bokeh is pleasing, and the lens is weatherproof"

"Lens motor hunts around before settling on focus points so focus not always quick, more like in-camera motor speed."

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
69.8 - 19.2°
26-106.5mm
35mm equivalent focal length

Pros

The Pentax DA 17-70mm f/4 AL SDM vs other Pentax K lenses

	Fixed aperture
	The same aperture at all focal lengths

	Silent focus motor
	Silent and fast

Cons

The Pentax DA 17-70mm f/4 AL SDM vs other Pentax K lenses

	Zoom lens
	Typically not as sharp as prime lenses

	Narrow aperture
	f/4

Specifications

General

	Min focal length	17 mm
	Max focal length	70 mm
	Zoom range	4.1x
	Magnification	1:3.2 (0.3x)
Aperture

	Wide minimum	f/4	below average
	Wide maximum	f/22
	Tele minimum	f/4
	Tele maximum	f/22
Features

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

	Lens mount	Pentax K
	Length	94 mm
	Diameter	75 mm
	Filter size	67 mm
	Weight	485 g
Angle of view

	Wide horizontal	69.5°
	Telephoto horizontal	19.1°
	Wide vertical	49.6°
	Telephoto vertical	12.8°
	Wide diagonal	79.6°
	Telephoto diagonal	22.9°

DiscussionWhat do you think about the Pentax SMC DA 17-70mm f/4 AL SDM lens?

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Showing 1 comments

SunKyong Kim

(2:08 AM, December 22, 2010)

I like this lens's SDM

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Pentax SMC DA 17-70mm f/4 AL SDM

reviewswhat are people saying

compatibilitywith digital cameras

APS-C (1.5x crop factor)

Pros

The Pentax DA 17-70mm f/4 AL SDM vs other Pentax K lenses

Cons

The Pentax DA 17-70mm f/4 AL SDM vs other Pentax K lenses

Specifications

General

Aperture

Features

Form factor

Angle of view

DiscussionWhat do you think about the Pentax SMC DA 17-70mm f/4 AL SDM lens?

Showing 1 comments