This lens produces smooth, natural skin tones and beautiful out-of-focus backgrounds at open aperture in portrait applications, while assuring crisp, high-contrast images at closed-down aperture in landscape photography. The lens barrel, hood and cap are all made of a high-grade aluminum material, and the focusing ring is designed for superb accessibility and maximum ease of focusing operation. The PENTAX-original Super Protect (SP) coating is applied through a vapor deposition process, where the surface is coated with a special fluorine compound to repel dust, water and grease, making it easy to wipe off fingerprints and cosmetics.
Lens mount: - PENTAX KAF mount Lens construction: - 6 elements in 5 groups Angle of view: - 23? with *ist/K DSLR?s Diaphragm control: - Fully Automatic Number of aperture blades: - 9 Minimum aperture: - f/22 Metering system: - TTL Open-Aperture Metering Minimum focusing distance: - 2.3 ft. (0.7m) Filter size: - 49mm Maximum magnification: - 0.12x Dimensions (diameter x length): - 2.5 in. (63 mm) x 1.0 in. (26 mm) Weight (w/o hood): - 4.6 oz. (130 g) Hood: - MH-RB 49mm (included)