A quick specs comparison between the new Tamron SP 85mm f/1.8 Di VC USD and the Nikon AF-S 85mm f/1.8G lenses – the Tamron is slightly longer, almost twice as heavy as the Nikon version, has more optical elements and image stabilization:
| Tamron SP 85mm f/1.8 Di VC USD | Nikon AF-S 85mm f/1.8G | |
| Price | not yet announced (will be more expensive than the Nikon version) | $476.95 |
| Focal Length | 85mm | 85mm |
| Maximum Aperture | f/1.8 | f/1.8 |
| Minimum Aperture | f/16 | f/16 |
| Format | FX/DX | FX/DX |
| Maximum Angle of View (DX) | 18°39′ | 18°50′ |
| Maximum Angle of View (FX) | 28°33′ | 28°30′ |
| Maximum Reproduction Ratio | 0.13x | 0.12x |
| Lens Elements | 13 | 9 |
| Lens Groups | 9 | 9 |
| Image Stabilization | Yes (3.5 stops) | No |
| Diaphragm Blades | 9 | 7 |
| Minimum Focus Distance | 2.62′ (80 cm) | 2.62′ (80 cm) |
| Filter Size | 67mm | 67mm |
| Dimensions (Diameter x Length) | 3.34 x 3.50″ (84.8 x 88.8 mm) | 3.1 x 2.9″ (78.7 x 73.7 mm) |
| Approx. Weight | 23.0 oz (660 g) | 12.35 oz (350 g) |
| Other | Moisture resistant construction, Fluorine coating | Super Integrated Coating |
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