Focal Length : 50mm
Comparable APS-C Focal Length : 76.5 mm
Aperture - Maximum : f/1.8, Minimum : f/22.0
Camera Mount Type : Pentax K
Format Compatibility : Pentax Digital (APS-C)
Angle of View : 31.5o
Minimum Focus Distance : 45.11 cm (1.48')
Magnification : 0.15x
Elements/Groups : 6/5
Diaphragm Blades : 7
Image Stabilization : No
Autofocus : Yes
Tripod Collar : No
Filter Thread - Front : 52 mm
Dimensions (DxL) : Approx. 6.35 x 3.81 cm (2.5 x 1.5 in)
Weight : 122g (4.3 oz)

Front and Rear Lens Caps