With Extra-low Dispersion (ED) glass lens element and two aspherical lens elements, the lens offers more true-to-life image reproduction. The image circle in DA-series lenses 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.
Features:
- Metal PENTAX KAF Lens Mount
- Equivalent focal length to 18.5mm-37mm in the 35mm format with *ist DSLRs
- Extra-low Dispersion (ED) glass for superior sharpness and color correction
- Responsive "Quick-Shift Focus System" allows instant shift from AF to MF
- The image circle is designed to match the CCD used in PENTAX digital SLRs
- Comes with a lens hood to minimize flare and ghost images
Specifications:
Mount: PENTAX KAF
Lens Construction: 13 elements in 11 groups
Angle Of View: 99 - 61 degrees
Diaphragm: Fully Automatic
Blades: 8
Min Aperture: f22
Metering: TTL Open-aperture Metering
Min Focus Distance: 1.0 ft.
Max Magnification: 0.12X
Filter Diameter: 77mm
Size Max Diameter Length: 3.3 inches (832.5mm)
Weight: 15.2 oz. (430g)
Filter Size: 77mm
Lens Hood: PH-RBI 77MM (38745)
Lens Case: Lens Soft Case S80-120 (33924)
Catalog Number: 21577
