Name: smc DA 17-70mm f/4 AL (IF) SDM
Brand: Pentax
SKU: 601
Rating: 4.0 (7 reviews)

Pentax smc DA 17-70mm f/4 AL (IF) SDM right

3.6

based on all reviews

Consumer ratings:

3.1 / 5

solid and well-built
make it easy to shoot compelling lifestyle images
fast and near-silent performance

The lens has no control surfaces other than the zoom and focus rings
Corner shading is a bit more prominent on the Sigma
Not weather sealed

Elements: 17
Focus method: Internal
Autofocus: yes
Max format size: APS-C (crop)
Focal length: 17, 70 mm
Image stabilisation: no
Lens type: Telephoto

Pentax smc DA 17-70mm f/4 AL (IF) SDM - Pros & Cons

solid and well-built
make it easy to shoot compelling lifestyle images
fast and near-silent performance
working flawlessly
quick and precise
It has a great range
and is a great upgrade from the kit lens
very pleasing colors and delivers good contrast
Tamron is sharper
and offers improved resistance to chromatic aberration
AF accuracy was fine in field condition

The lens has no control surfaces other than the zoom and focus rings
Corner shading is a bit more prominent on the Sigma
Not weather sealed
just a tad slow
slower and noisier than the Pentax
uneven sharpness and around 3 blur units

Pentax - Video Reviews (1)

Pentax smc DA 17-70mm f/4 AL (IF) SDM - Full Specifications

Lens type	Telephoto
Lens mount	Pentax KAF3

Aperture max	4
Aperture min	22
Aperture ring	no
Number of diaphragm blades	7

Elements	17
Groups	12
Special elements / coatings	Quick-shift focus SP coating
Zoom method	Expanding

Weight	17.11 oz
Diameter	2.95 in
Length	3.68 in
Filter size	2.64 in

Max Format size	APS-C
Focal length	17 - 70
Focal Length 35mm Equivalent	25.5 - 105
Angle of View	79 - 23
Maximum magnification	0.31 x
Image stabilisation	no

Focus method	Internal
Autofocus	yes
Autofocus motor type	Ultrasonic
Full-time Manual focusing	yes
Closest focusing distance	0.28
Distance scale	yes
Depth of field (DoF) scale	yes

Colour of product	Black
Lens Cap Type	O-LC67
Tripod collar	no

Pentax smc DA 17-70mm f/4 AL (IF) SDM - Q&A

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Pentax smc DA 17-70mm f/4 AL (IF) SDM Pentax - Editorial Reviews (2)

Pentax smc DA 17-70mm f/4 AL (IF) SDM Pentax 17-70mm f/4 AL IF SDM SMC DA Review

Imaging Resource

Published: 03.06.2008

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

Looking for a Pentax 17-70mm lens review? Read on to find out what we uncovered in our objective optical lab tests.

Pentax smc DA 17-70mm f/4 AL (IF) SDM smc PENTAX-DA 17-70mm F4 AL[IF] SDM

DPReview

Published: 03.06.2008

smc PENTAX-DA 17-70mm F4 AL[IF] SDM

Pentax has launched a consumer-level standard zoom lens for its range of digital SLRs: the slightly unwieldily named smc PENTAX-DA 17-70mmF4AL[IF] SDM. The lens offers the useful equivalent zoom range of 26-107mm combined with a maximum aperture of F4.0 and Pentax' SDM system which uses a supersonic motor for focusing. The latter is only compatible with Pentax' latest DSLR offerings - the K20D, K200D, K100D Super and K10D. On all other bodies focus mode will default to manual focus.