Working distance of 100mm, the longest of lenses in this class
This lens’ working distance of 100mm, the longest in its class*, means that an appropriate distance may be maintained while still enjoying 1:1 macro photography (when hood is not attached). Due to the internal focusing system employed, the overall length of the lens does not change when adjusting the focus, achieving major improvements in ease of use.
* Standalone life-size macro lens with a focal length equivalent to 50-60mm. Based on present Tamron research (June 1, 2009).