| Lens Specifications | |
|---|---|
| Name | Pentax SMC P-FA 135mm f/2.8 IF |
| Image Circle | 35mm |
| Type | Telephoto Prime |
| Focal Length | 135mm |
| APS Equivalent | 202.5mm |
| Max Aperture | f/2.8 |
| Min Aperture | f/22 |
| Diaphragm Blades | ? |
| Lens Construction | 8 elements in 7 groups |
| Diagonal Angle of View(Based on image circle) | 18 degrees |
| Focus Details | Internal |
| Front Element Rotation | No |
| Zoom System | n/a |
| Closest Focus | 0.7m / 2.3 ft. |
| Magnification Ratio | ? |
| Filter Size | 52mm |
| Dimensions(Length x Diameter) | 79mm x 64mm / 3.1 in. x 2.5 in. |
| Weight | 374g / 13.2 oz |
| Notes | |
| Typical Online Price | US$308.99 |
