HD Pentax-DA 645 28-45mm F4.5 ED AW SR
 | |
| Maker | Ricoh Imaging |
|---|---|
| Lens mount(s) | Pentax 645AF2 |
| Technical data | |
| Type | Zoom |
| Focus drive | In-lens DC micromotor |
| Focal length | 28-45mm |
| Focal length (35mm equiv.) | 22-35.5mm |
| Aperture (max/min) | f/4.5 / f/32 |
| Close focus distance | 0.40 metres (1.3 ft) |
| Max. magnification | 0.21 |
| Diaphragm blades | 9 |
| Construction | 17 elements in 12 groups |
| Features | |
| Manual focus override |
 |
| Weather-sealing |
|
| Lens-based stabilization |
|
| Aperture ring |
 |
| Application | Landscape and architectural photography |
| Physical | |
| Diameter | 99 millimetres (3.9 in) |
| Weight | 1,470 grams (3.24 lb) |
| Filter diameter | 82mm |
| Accessories | |
| Lens hood | PH-RBC82 |
| Case | S120-210 |
| History | |
| Introduction | 2014 |
| Retail info | |
| MSRP | $4999.95 USD |
The HD Pentax-DA 645 28-45mm F4.5 ED AW SR is a wide angle zoom lens for the Pentax 645 medium format system, announced by Ricoh on August 4, 2014.
References
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