New camera, new lens: this Pentax-D FA 645 55mm f/2.8 AL[IF] SDM AW Lens is the first model of the Pentax-D FA 645 lens series created for the Pentax 645D digital medium-format camera. With a focal length that's equivalent to a 43.5mm standard lens (in 35mm), it features optics optimized for digital photography to assure exceptional performance, and also provides an image circle covering the image area of existing 645-format film SLR cameras. It has dependable, dust-proof, weather-resistant construction for active outdoor photography.
This lens features a Supersonic Direct-drive Motor (SDM) autofocus drive and Quick-Shift for instant autofocus/manual focus switching, Aero Bright coating to help prevent flare and ghost images, and it's Pentax's first 645 system lens to incorporate a rounded diaphragm for improved bokeh (the aesthetic quality of the blur in the out-of-focus areas of an image).
Focal Length | 55mm |
Maximum Aperture | f/2.8 |
Minimum Aperture | f/22 |
Lens Mount | Pentax 645 |
Angle of View | 65° |
Minimum Focus Distance | 1.64' / 49.99 cm |
Maximum Magnification | 0.17x |
Optical Design | 9 Elements in 7 Groups |
Diaphragm Blades | 9 |
Focus Type | Autofocus |
Image Stabilization | No |
Filter Size | 67 mm (Front) |
Dimensions (ø x L) | 2.69 x 3.2" / 68.2 x 81.3 mm |
Weight | 14.67 oz / 416 g |
Package Weight | 1.475 lb |
Box Dimensions (LxWxH) | 5.7 x 4.6 x 4.6" |