| Tamron 18-270mm f/3.5-6.3 Di II VC Specifications | |
| Frame Coverage | APS-C |
| Lens Construction (groups) | 13 |
| Lens Construction (elements) | 18 |
| No. of Diaphragm Blades | 7 |
| Minimum Aperture | 22-40 |
| Closest Focusing Distance | 0.45m (17.7") |
| Maximum Magnifcation | .29x |
| Filter Diameter | 72mm |
| Maximum Diameter x Length | 79.6mm x 101mm (3.1" x 3.9") |
| Weight | 550g (19.5oz) |
Reviews
Source
PhotoZone.de
The Tamron AF 18-270mm f/3.5-6.3 Di LD Aspherical [IF] VC macro (sorry, I had to repeat that again ...) tries to provide it all but the continuously higher degree of generalization rather than specialization has a price - image quality. The lens had a bit of a hard time to deliver a good image quality on a very high resolution DSLR (EOS 50D @ 15mp).
SLRGear.com
As the Tamron 18-270mm and the ''name-brand'' competition are all floating around the same price point, the decision of whether to buy this lens or a Nikon / Canon equivalent comes down to how badly you need the extra 70mm of distance. Image quality is fairly consistent between these lenses, with perhaps a nod towards the Tamron, but autofocus speed and quality is better with the competition.
DPReview.com
We were overall quite impressed by the Tamron 18-270mm. Where it's good, it's actually very good indeed, and even where it's weak it's not too far behind the competition. And that remarkable zoom range is a draw in itself; this is a lens which will have you shooting the same subject from the same position at both 18mm and 270mm, just to see how it looks.
