Pentax-FA 31mm F1.8 Limited (APS-C)
Specifications
Physical Detail
Technical Specifications
- Lens Mount: PENTAX K AF
- Lens Construction: 9 elements in 7 groups
- Angle of View (Horizontal): 42 degrees (APS-C) 60 degrees FF
- Aperture: F1.8
- Number of Diaphragm Blades: 9
- Minimum Aperture: 22
- Minimum Focusing Distance: 30 cm (12 in)
- Filter Diameter: 58mm
- Maximum Magnification: 0.16x
- Dimensions: 2.4 x 2.7" (65x68.5mm)
- Weight: 11.2 oz (345g)
- Case: leather pouch
- Objective Cap: dedicated metal cap
- Hood: built-in
- Lens Aperture Ring: Yes
- Tripod Adapter: No
- Diaphragm Control: Fully automatic
- Focal Length: 31mm (equiv. 46mm)
