Pentax-DA 18-270mm F3.5-6.3 Review

Specifications

The Pentax 18-270mm zoom is designed exclusively for digital cameras and only covers the APS-C image circle. 

This lens foregoes the traditional Pentax screw drive focusing mechanism and features a built-in super sonic focusing motor (SDM) only. This means that this lens will not autofocus on certain early Pentax DSLRs: the K100D, K110D, and *istD series.

Below are the official lens specifications:

Lens Name SMC PENTAX-DA 18-270mm F3.5-6.3 ED SDM
Optical Formula 16 elements in 13 groups.
Two of the elements are ED
(extra low dispersion)
Image Circle APS-C Only
Autofocus Built-In SDM Motor
Field of View 67° to 5° horizontal, 75° to 5.5° diagonal
Aperture Range F3.5 - F22 at 18mm
F6.3 - F45 at 270mm
Aperture Blades 7, rounded
Aperture Ring N/A
Max. Magnification 0.26x
Minimum Focusing Distance 49cm
Internal Focus  Yes
Quick Shift  No
Filter Diameter 62mm
Cap Plastic, pinch type
Hood PH-RBD 62mm, included, petal-style
Case None included
Diameter x Length 75.8 x 89mm / 3 x 3.5 in
Weight 453g / 16oz
Mount Designation KAF3
Weather Sealing N/A
Price Current (US): $799.95

As this is a DA-series lens, modern Pentax DSLRs will support in-camera distortion and aberration correction when used with this lens.


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