smc PENTAX D-FA 645 55mm F2.8 AL (IF) SDM AW
Incorporating high-performance, hybrid aspherical optical element in its optics, this new standard lens offers exceptional image-resolving power with outstanding brightness levels even at the edges, while compensating various aberrations to a minimum. All lens characteristics are optimized for digital photography: for instance, flare and ghost images are minimized by applying exclusive lens coatings to optical elements and employing anti-reflection materials for the interior of the lens barrel. As the result, this lens can bring out the full potential of PENTAX 645 medium-format digital SLR cameras.

| smc PENTAX D-FA 645 55mm F2.8 AL (IF) SDM AW | |
| Lens Mount | PENTAX 645 KAF2 bayonet |
| Angle of View | 53 degrees on 645D 65 degrees on 645, 645N, 645NII |
| Focal Length | 55mm (Equivalent to 43.5mm in 35mm) |
| Lens Construction(group/elements) | 9 elements in 7 groups |
| Min. Aperture (f) | F22 |
| Min. Focusing Distance | 0.5m (1.64 ft.) |
| Max. Magnification | 0.17X |
| Filter Size | 67mm |
| Diameter & Length (mm) | 81.3×68.2mm (3.2×2.7”) |
| Weight (g) | 416g (14.7 oz) without hood 463g (16.3 oz) with hood |
| Number of Diaphragm Blades | 9 |
| Quick-Shift focus system | Yes |
| Hood | PH-RBN 67mm (included) |
| Model No. | |


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