Attribute | Value |
Lens Construction | 8 elements in 5 groups, including 1 hybrid aspherical element |
Diameter | 63 mm |
Diagonal Angle of View | 68.00 degree |
Aperture | 3.20 - 22.00 f |
Notes | Dual filter attachment design: 43mm filters on the hood, and 49mm filters on the lens (without use of the hood). |
Filter Size | 43 mm |
Magnification Ratio | 0.17 x |
Closest Focus | 0.2 m |
Focus Details | "Quick Shift" AF/MF mechanism |
Length | 25 mm |
Diaphragm Blades | 7 |
APS Equivalent | 31.5mm |
Focal Length | 21.00 mm |
Image Circle | APS-C |
Brand | Pentax |
Name | Pentax SMC P-DA 21mm f/3.2 AL Limited |
Weight | 140 g |
Type | Wide Prime |
35mm Equivalent | Add |
Effective Reduction in Aperture | Add |
Focal Length Multiplier | Add |
APS-C Equivalent | Add |
Zoom System | Add |
Diaphragm Blades Type | Add |
Front Element Rotation | Add |