| Attribute | Value |
|---|---|
| Lens Construction | 18 elements in 14 groups, including 3 ED elements |
| Diameter | 76.5 mm |
| Zoom System | Rotary |
| Diagonal Angle of View | 11.90 - 31.50 degree |
| Aperture | 2.80 - 22.00 f |
| Notes | Included Accessories: Lens Hood |
| Filter Size | 67 mm |
| Magnification Ratio | 0.17 x |
| Closest Focus | 1 m |
| Focus Details | Internal with "Quick Shift" AF/MF mechanism |
| Length | 136 mm |
| Diaphragm Blades | 9 |
| APS Equivalent | 76.5 - 207mm |
| Focal Length | 50.00 - 135.00 mm |
| Image Circle | APS-C |
| Brand | Pentax |
| Name | Pentax SMC DA* 50-135mm f/2.8 ED AL IF SDM |
| Weight | 685 g |
| Type | Telephoto Zoom |
| 35mm Equivalent | Add |
| Effective Reduction in Aperture | Add |
| Focal Length Multiplier | Add |
| APS-C Equivalent | Add |
| Diaphragm Blades Type | Add |
| Front Element Rotation | Add |