The Lens PENTAX 55mm Medium Format we can talk about it as the "normal" lens in terms of focal length, speaking, since it is equivalent to a 43.5mm of the traditional format and is an ideal companion for your body of PENTAX 645
The main features of the LensPENTAX 55mm Medium Format
| Focal length | 55mm |
| Maximum aperture | f/2.8 |
| Minimum aperture | f/22 |
| Lens mount | PENTAX 645 |
| Point of view | 65 ° |
| Maximum magnification | 0.17x |
| Minimum focusing distance | 1.64'/ 49.99 cm |
| Optical design | 9 items in 7 groups |
| Diaphragm leaves | 9 9 |
| Type of approach | Autofocus |
| Image stabilization | No |
| Filter size | 67 mm (front) |
| Dimensions (ø x L) | 2.69 x 3.2" / 68.2 x 81.3mm |
| Weight | 14.7 oz / 416 g |
The Lens PENTAX 55mm Medium Format we can talk about it as the "normal" lens in terms of focal length, speaking, since it is equivalent to a 43.5mm of the traditional format and is an ideal companion for your body of PENTAX 645