Pentax's 55mm f/2.8 lens features a Supersonic Direct-drive Motor (SDM) autofocus drive for fast, silent, accurate autofocus. It has weather-resistant coatings enabling you to shoot wherever your little heart desires. The 55mm focal length on a 645Z has an equivalent field of view of a 45mm lens on a full frame DSLR.
|Focal Length||55 mm|
|Camera Mount||Pentax 645|
|Angle of View @ Infinity||65°|
|Minimum Focus Distance||1.64' (49.99 cm)|
|Filter Thread||Front: 67 mm|
|Weight||14.67 oz (416 g)|
|Dimensions||Approx. 2.69 x 3.20" (68.2 x 81.3 mm)|