Canon EF 180mm f/3.5L USM Macro Lens

by Philip Greenspun; created 1998

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This is an expensive high-quality lens that focusses continuously down to 1:1 (i.e., you can take a picture of something that is 24x36mm in size, the dimensions of the standard 35mm frame). The lens has an ultrasonic motor that allows manual focusing even in AF mode. However, I found that the brand new lens I borrowed from my friend Rob was not able to reliably AF at all, even at normal distances of 10-12 feet. It worked great as a manual focus lens, though. The lens comes with a tripod collar and works with the 1.4X and 2X teleconverters.

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