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Pentax

Pentax SMCP-DA 17-70mm f/4 AL (IF) SDM Super Wide Angle Auto Focus Zoom Lens

SKU: PX1770AFD MFR: 21740
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About the Pentax 17-70mm

The SMC PENTAX DA 17-70mm f/4 AL [IF] SDM lens is designed for exclusive use with PENTAX digital SLR cameras. This standard lens with extra zoom offers outstanding, well-balanced handling, and covers the most frequently used focal lengths between wide-angle and telephoto making it ideal for a variety of shots including scenery, snapshot and portraiture.

This lens features a 4.1X zoom ratio covering wide-angle to moderate-telephoto ranges, andcovers a focal-length range from 26mm wide angle to 107mm telephoto in the 35mm format. When mounted on a compatible* DSLR camera body, the PENTAX-original SDM system driven by a built-in supersonic motor, offers exceptionally smooth, quiet autofocus.
* This lens is compatible with the K20D, K200D, K100D Super and K10D (with Ver. 1.30 or later firmware installed) and later PENTAX DSLR camera bodies. When mounted on other camera bodies, the focus mode is automatically switched to manual.

Developed specifically for PENTAX digital SLRs,** this 17-70mm lens also features PENTAX SP (Super Protect) coating that protects the exposed lens elements and repels dust, water and grease. It also features a Quick-shift Focus System that allows instant switching from auto to manual focus with a turn of the focus ring.
**SDM-only focusing lens may be used with non-SDM PENTAX DSLR bodies in manual focus

Other important features of this lens include:
Exceptional Image Clarity
Incorporating two hybrid aspherical (AL) optical elements, this zoom lens assures exceptional image quality while effectively compensating for various aberrations.

Maximum Aperture of f/4 Over Entire Zoom Range
With a maximum aperture of f/4 over the entire zoom range, the lens allows photographers to use higher shutter speeds to minimize camera shake (especially in telephoto applications) or reduce the depth of field to intentionally throw the background out of focus.

Close Minimum Focusing Distance
This lens offers a minimum focusing distance of 11 inches (0.28 meters) over the entire zoom range, and an Inner-Focus (IF) optical design that eliminates lens extension and retraction during focusing operation.

Digital SLR Optical Design
From lens coating and curvature to the positioning of optical elements, the lens optics are meticulously designed to optimize the lens's digital imaging characteristics. The image circle is perfectly proportioned to a PENTAX camera's image-sensor size.

One reason why the Pentax 17-70mm is popular is because of its Durable.

Pentax 17-70mm Includes

  • Lens Cap, Rear Lens Cap B (31006), Lens Hood, Lens Soft Case

Summary of Customer Reviews

(5)
Customers most agreed on the following attributes:
Pros:
Durable (4) , Easy to install (3) , Easy to use (3) , Fast / accurate auto-focus (3) , Safe (3) , Well designed (3)
Best Uses:
Inside (3) , Outside (3)
Reviewer Profile:
Professional (3) , Photo enthusiast (1) , Pro photographer (1)

Pentax 17-70mm Specifications

Construction 17 elements in 12 groups
Angle of view 79° - 23° (with PENTAX D-SLR camera body)
F stop range Minimum F stop: 22
Closest Focusing Distance 0.28m (0.92 ft.)
Maximum Magnification 0.31X
Filter Size 67mm
Dimensions (Length x Diameter) 3.7" x 3.0" (93.5MM x 75mm)
Weight 485g (17.1 oz.) without hood; 515g (18.2 oz.) with hood
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
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