AT A GLANCE
Focal Length 50mm
Equivalent to 76.5mm in 35mm format (when attached to PENTAX APS-C size DSLR cameras)
Maximum Aperture F1.4
Minimum Aperture F22
Lens Construction 7 elements in 6 groups
Angle of View (Diagonal) 47°
31.5° (when attached to PENTAX APS-C size DSLR cameras)
Mount KAF
Minimum Focusing Distance 0.45m (1.48ft.)
Maximum Magnification 0.15x
Filter Diameter 49mm
Diaphragm Control Fully automatic
Number of Diaphragm Blades 8
Rounded diaphragm (50mm: F1.4-F2.8)
Aperture Ring equipped
Tripod Mount N/A
Maximum Diameter x Length
approx. 65mm x 40.5mm (approx. 2.6in. x 1.6in.)
Weight
approx. 223g (approx. 7.9oz.)
Temperature
-10°C~40°C (14°F~104°F)
Humidity
85% or less (no condensation)