| Attribute | Value |
|---|---|
| Focus Details | AF or MF |
| Diameter | 62.9 mm |
| Diagonal Angle of View | 39.00 degree |
| Diaphragm Blades Type | rounded |
| Aperture | 2.80 - 22.00 f |
| Notes | 27mm objective cap and rear cap included. |
| Filter Size | 27 mm |
| Magnification Ratio | 0.13 x |
| Closest Focus | 0.4 m |
| Front Element Rotation | - |
| Length | 9.2 mm |
| Lens Construction | 5 elements in 4 groups |
| Diaphragm Blades | 9 |
| APS Equivalent | 61mm |
| Focal Length | 40.00 mm |
| Image Circle | APS-C |
| Brand | Pentax |
| Name | Pentax SMC DA 40mm ƒ/2.8 XS |
| Weight | 51 g |
| Type | Standard Prime |
| 35mm Equivalent | Add |
| Effective Reduction in Aperture | Add |
| Focal Length Multiplier | Add |
| APS-C Equivalent | Add |
| Zoom System | Add |