Tamron's SP AF70-200mm F/2.8 Di LD (IF) Macro A Digitally Optimized, Wide Aperture Pro-Grade Zoom With Close-Focusing Ability

摘要

Because of the increasing number of D-SLRs with full-frame sensors, Tamron is upgrading several of their multi-platform lenses to the Digitally Integrated standard. The most recent model, the 70-200mm f/2.8 Di, is optimized for D-SLRs regardless of the sensor size but also provides outstanding results with 35mm SLRs. This zoom has benefited from several improvements, including closer focusing ability and a focus "clutch" that allows for quickly switching from AF to MF. Extensive use of multiple layers of "Internal Surface Coatings" (plus a Large hood) help to minimize flare from a highly reflective digital sensor and from external light sources.