Canon EF 400mm f/4 DO – First Impressions
My new lens, the Canon EF 400mm f/4 DO, arrived yesterday afternoon and this morning I was out shooting.
Before going, I did some test shots in my back yard. First, the Canon 2x II will work with the lens, but only in manual focus mode. Grumble. However, my Tamron 1.4x works fine and provides auto focus. I am pleased with that.
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