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70-200mm f/2.8 Di LD (IF) Macro AF Lens for Pentax AF
Product Description
The Tamron 70-200mm f/2.8 Di LD (IF) Macro Lens is a telephoto zoom lens that has a large maximum aperture of f/2.8 which remains constant throughout the zoom range. It also offers an excellent "close-focusing-distance" minimum of just 3.1' (0.95 m) throughout its entire zoom range, with a maximum macro magnification ratio of 1:3.1 at f=200mm. When mounted on an APS-C sensor size digital SLR camera, it provides a focal length equivalent of 105-300mm.
Di (Digitally Integrated Design) is a designation Tamron puts on lenses featuring optical systems designed to meet the performance characteristics of digital SLR cameras. Features like LD glass elements and Internal Focusing put this lens in the same category as the much bigger and more expensive professional Tamron lenses.
| Performance | |
| Focal Length | 70 - 200mm |
| Aperture | Maximum: f/2.8 Minimum: f/32 |
| Camera Mount Type | Pentax K |
| Format Compatibility | 35mm Film / Full-Frame Digital Sensor Pentax Digital (APS-C) |
| Angle of View | 34° - 12° APS-C Picture Angle: 22° - 7° |
| Minimum Focus Distance | 3.12' / 95 cm |
| Magnification | 0.32x |
| Maximum Reproduction Ratio | 1:3 |
| Optical Design | 18 Elements in 13 Groups |
| Diaphragm Blades | 9 |
| Features | |
| Image Stabilization | No |
| Autofocus | Yes |
| Tripod Collar | Yes |
| Physical | |
| Filter Thread | 77 mm |
| Dimensions (DxL) | Approx. 3.5 x 7.6" / 8.89 x 19.30 cm |
| Weight | 2.53 lb / 1150 g |
| Warranty Length | |
| USA Warranty Extension |
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