| Tamron 18-250mm f/3.5-6.3 Di II Specifications | |
| Frame Coverage | APS-C |
| Lens Construction (groups) | 13 |
| Lens Construction (elements) | 16 |
| No. of Diaphragm Blades | 7 |
| Minimum Aperture | 22 |
| Closest Focusing Distance | 0.45m (17.7") |
| Maximum Magnifcation | .29x |
| Filter Diameter | 62mm |
| Maximum Diameter x Length | 74.4mm x 84.3mm (2.9" x 3.3") |
| Weight | 430g (15.2oz) |
Reviews
Source
Bob Atkins
Performance is quite similar to that of the Canon EF-S 17-85/4-5.6 IS USM over the same focal length range. At longer focal lengths the edge quality diminishes somewhat and chromatic aberration becomes more visible, but center sharpness holds up well. Though the lens is certainly quite usable, the image quality doesn't quite match that of the Canon EF 70-300/4-5.6IS USM.
