Product Description
The compact, high-performance, interchangeable smc PENTAX-DA 16 mm - 45 mm F4 ED AL lens features a 3X zoom ratio with focal lengths covering ultra-wide to moderate-telephoto ranges for the angle of view equivalent to 24.5mm-69mm in the 35mm format.
The DA-Series features a responsive ?Quick-Shift Focus System? that allows photographers to instantly switch the focus mode from auto to manual with a slight twist of the focus ring. Coupled with a simple, functional design and the elimination of an aperture ring, this new mechanism considerably improves the camera?s operability. The lens also incorporates an Extra-low Dispersion (ED) glass lens element and two aspherical lens elements for true-to-life image reproduction and overall size reduction. The image circle in DA-series lenses, including the smc PENTAX-DA 16mm-45mm F4 ED AL, is designed to perfectly match the 23.5mm x 15.7mm size of the CCD used in PENTAX digital SLRs to optimize camera performance. The new design also contributes to a drastic reduction in size, weight and production cost, compared to 35mm-format counterparts with similar specifications.
Lens Construction: 13 elements in 10 groups (one aspherical lens)
Angle of view: 83o-35 o (with *istD body)
Diaphragm: Fully Automatic
Minimum Aperture: F22
Metering: TTL open-aperture
Min. Focus Distance: 0.92 ft (0.28m)
Max. Magnification: 0.26X
Filter Diameter: 67mm
Size: 2.8? x 3.6? (72 x 92mm)
Weight: 12.9 oz (365g) w/o hood
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