By Glenn Bartley
Canadian professional wildlife photographer Glenn Bartley took our Canon EF 600 f/4L IS II for a week long test drive in Arizona before purchasing his own. I’ve been a fan of Glenn’s for some time, especially his work in South America.
As expected, the lens is a terrific birding lens. As Glenn said from the start, it’s a 600mm lens in a 500mm f/4L IS version 1 body, which is the lens his moving on from.
“What a treat to be able to use this lens for an extended period of time for real world testing. There is basically nothing that I did not like about the lens. It is at the top of its class in every regard.”