Pentax 40mm f/2.8 Limited SMC P-DA

Lens Reviews / Pentax Lenses i Lab tested
Lens Specifications
Name Pentax SMC P-DA 40mm f/2.8 Limited
Image Circle APS-C (but we found it didn't vignette on a 35mm film body)
Type Standard Prime
Focal Length 40mm
APS Equivalent 60mm
Max Aperture f/2.8
Min Aperture f/22
Diaphragm Blades 9
Lens Construction 5 elements in 4 groups
Diagonal Angle of View(Based on image circle) 39 degrees
Focus Details "Quick Shift" AF/MF mechanism
Front Element Rotation No
Zoom System n/a
Closest Focus 40cm / 15.8 in.
Magnification Ratio 0.13x / 1:7.7
Filter Size 30.5mm and 49mm
Dimensions(Length x Diameter) 15mm x 63mm / 0.6 in. x 2.5 in.
Weight 90g / 3.2 oz
Notes Distance scale
Typical Online Price US$289.95