smc Pentax-DA 17-70mm f/4 AL [IF] SDM
- 17-70mm
- f/4.0
- Zoom
- 485 g
- Min focus 0.28 m
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Quick answer
A versatile standard zoom for Pentax APS-C bodies with SDM focusing. It weighs about 485 g and takes 67mm filters.
Pros
- Constant f/4
- SDM autofocus
- Wide 17-70mm range
- Close focus 0.28 m
Cons
- APS-C only
- Not weather sealed
- No stabilization
Verdict
A versatile one-lens option for Pentax crop bodies.
About this lens
This 17-70mm f/4 standard zoom lens from Pentax fits Pentax K mount cameras. The range covers everything from wide scenes to portraits, so it works as a general-purpose lens.
Pentax smc Pentax-DA 17-70mm f/4 AL [IF] SDM specifications
- Brand
- Pentax
- Mount
- Pentax K
- Focal length
- 17-70mm
- Maximum aperture
- f/4.0
- Lens type
- Zoom
- Format coverage
- aps-c
- Released
- 2008
- Optical construction
- 17 elements in 12 groups
- Aperture blades
- 7
- Autofocus motor
- SDM
- Minimum focus distance
- 0.28 m
- Maximum magnification
- 0.31x
- Filter thread
- 67 mm
- Weight
- 485 g
- Diameter
- 75 mm
Specification source: en.wikipedia.org
What can you shoot with the Pentax smc Pentax-DA 17-70mm f/4 AL [IF] SDM?
- General APS-C shooting
- Travel
- Events
Its moderate maximum aperture works best in good light or with a higher ISO.
Full-frame equivalent and field of view
Calculated from the focal length and crop factor. Not measured.
| Sensor | Crop | Equivalent | Horizontal FOV | Diagonal FOV |
|---|---|---|---|---|
| APS-C | 1.5x | 26–105mm | 19.5–70.4° | 23.3–80.6° |
Frequently asked questions
Does the Pentax DA 17-70mm f/4 have image stabilization?
No. Pentax bodies stabilize the sensor, so shake reduction depends on the camera.
What filter size does it use?
The front thread measures 67mm, which is the size to look for when choosing a polarizer, UV or ND filter.
How close can it focus?
Minimum focus is 0.28 m, with a maximum magnification of 0.31x. That is close enough to place a foreground subject against a wide background.
Alternatives for Pentax K from other brands
All Pentax K lensesSame mount, overlapping focal range, closest maximum aperture first.
More Pentax lenses for Pentax K
All Pentax lensesOther 17-70mm lenses
Browse by focal length: 17mm lenses, 70mm lenses