Pentax 50mm f/1.8 SMC DA

 
Lens Reviews / Pentax Lenses i Lab tested
Lens Specifications
Name Pentax 50mm ƒ/1.8 SMC DA
Image Circle APS-C
Type Tele Prime
Focal Length 50mm
APS Equivalent 76.5mm
Max Aperture ƒ/1.8
Min Aperture ƒ/22
Diaphragm Blades 7 (rounded)
Lens Construction 6 elements in 5 groups
Diagonal Angle of View(Based on image circle) 31.5 degrees
Focus Details Quick-shift Focus System for instant switching from auto to manual focus
Front Element Rotation ?
Zoom System n/a
Closest Focus 45cm / 17.7 in.
Magnification Ratio 0.15x / 1:6.7
Filter Size 52mm
Dimensions(Length x Diameter) 38.5mm x 63mm / 1.5 in. x 2.5 in.
Weight 122g / 4.3oz
Notes
Typical Online Price US$250 (Avail. July 2012)