Focal Length 43mm, Equivalent to 66mm in 35mm format (when attached to PENTAX APS-C size DSLR cameras)
Maximum Aperture F1.9
Minimum Aperture F22
Lens Construction 7 elements in 6 groups
Angle of View (Diagonal) 53°, 36.5° (when attached to PENTAX APS-C size DSLR cameras)
Mount KAF
Minimum Focusing Distance 0.45m (1.48 ft.)
Maximum Magnification 0.12x
Filter Diameter 49mm
Diaphragm Control Fully automatic
Number of Diaphragm Blades 8
Rounded diaphragm (43mm:F1.9-F3.5)
Aperture Ring equipped
Tripod Mount N/A
Lens Hood MH-RG49 (included)
Lens Cap O-LW54A (included)
Lens Case P60-120 (included)
Maximum Diameter x Length approx. 64mm x 27mm (approx. 2.5in. x 1.1in.)
Weight approx. 155g / with hood approx. 163g (approx. 5.5oz./ with hood approx. 5.7oz.)
Temperature -10°C~40°C (14°F~104°F)
Humidity 85% or less (no condensation)