The compact Tamron SP AF 90mm f/2.8 Di Macro lens widely used by naturalists and other pros who need top imaging performance plus a longer lens-to-subject (working) distance to enable easier lighting and access to skittish subjects.
The new model has an improved resolution, with even more effective chromatic correction, and coatings that make it an ideal choice for full-frame or APS-C format SLRs.
Bearing the Digitally Integrated Design (DI), it is a designation Tamron puts on lenses featuring optical systems designed to meet the performance characteristics of digital SLR cameras.
The lens comes with a Auto/Manual-focus switch that allows you to quickly change between auto-focus and manual focus operation. You can slide the focus ring back and forth between the two positions. In manual-focus mode Tamron lenses provide smooth, precise manual focusing by turning their wide, well-textured focusing rings.
The Tamron SP AF 90mm f/2.8 Di Macro lens is perfect for use with both film and digital cameras.