The high performance DA* 200mm ED (IF) lens incorporates an SDM system which creates a smoother, quieter auto focus. Featuring a Quick-shift Focus System, switching from auto focus to manual is instantaneous.
Developed specifically for PENTAX digital SLRs, the DA* 200mm ED (IF) SDM lens has PENTAX SP coating which protects the exposed lens elements, and a focal length equivalent to 300mm in the 35mm format.
Weather and dust resistant, it's the perfect lens for extreme weather conditions.
Minimum Focusing Distance 3.9' (1.2m) Focusing Quick-shift Focus Focal length 200mm (equiv 307mm) Maximum Aperture f/2.8 Minimum Aperture f/22 Angle of View 8.1° (w/ Pentax DSLR) Lens Construction 9 elements in 8 groups Maximum Magnification Ratio 0.20x Filter Diameter 77mm Overall Length 3.3 x 5.3" (83 x 134mm) Max Diameter x Minimum Length Diaphragm Blades Nine Warranty Pentax Weight 29.1 oz (825g)