Product Highlights
  • f/4 - f/22 Aperture Range
  • APS-C Format
  • 17/12 Elements/Groups
  • SDM Supersonic Drive Motor
  • 67mm Filter Diameter
  • Pentax K Mount
Pentax smc DA 17-70mm f/4 AL IF SDM Lens Pentax smc DA 17-70mm f/4 AL IF SDM L...
Web Availability: Special Order
This product will be Special Ordered just for you from the manufacturer. We do not stock this item due to its uniqueness or import schedule. Special Order items are Final Sale, see our Return Policy for details.
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The PENTAX DA series is engineered exclusively for digital cameras.

Acquire wide angle, extra zoom and the highest level of optical quality with the smc PENTAX DA 17-70mm f/4 ED AL [IF] SDM wide angle zoom lens. The exclusive lens SDM autofocus motor ideally compliments current Pentax DSLRs with fast, accurate, quiet focus. Bringing together advanced optical technologies, including aspherical elements, special optical-glass elements, original Pentax SP (Super Protect) lens coatings, along with a Quick-shift Focus System, this new interchangeable lens is superior in terms of contrast, clarity and edge-to-edge sharpness.

Sample Images

(images courtesy

Key Features

  • Extra zoom for a wide range of shooting applications from wide angle to telephoto.
  • Exclusive lens SDM autofocus motor ideally complements modern PENTAX DSLR bodies with SDM capabilities.*
  • PENTAX SP (Super Protect) coating protects the exposed lens elements.
  • Quick-shift Focus System allows instant switching from auto to manual focus.
  • Developed specifically for PENTAX digital SLRs.
  • Focal length equivalent to 26-107mm in 35mm format
* SDM-only focusing lens can still be used with non-SDM PENTAX DSLR bodies in manual focus mode.

What's Included

  • smc PENTAX DA 17-70mm f/4 AL (IF) SDM Lens
  • Lens Hood PH-RBM 67mm
  • Lens Cap O-LC67 67mm
  • Rear Lens Cap B (31006)


Product Specifications

Detailed Specifications
Lens Mount PENTAX KAF3
Focal Length 17-70mm (equiv. 26-107mm)
Aperture f/4
Minimum Aperture f/22
Lens Construction 17 elements in 12 groups
Angle of View 79-23 degrees (w/PENTAX DSLR)
Minimum Focusing Distance 0.92' (0.28m)
Maximum Magnification 0.31X
Filter Diameter 67mm
Diaphragm Control Fully Automatic
Number of Aperture Blades 7
Lens Aperture Ring N/A
Tripod Adapter N/A
Hood PH-RBM 67mm
Objective Cap O-LC67
Case S90-140
Maximum Diameter x Minimum Length 3.0 x 3.7" (75 x 93.5mm)
Weight 17.1 oz. (485g)
Notes SDM focusing only (body will not drive focus, must use with SDM capable camera or focus manually on a non-SDM capable camera), Quick-shift Focus, SP (Super Protect) Coating, hood filter window.

Questions & Answers

Pentax smc DA 17-70mm f/4 AL IF SDM Lens

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