Paul Mayall Posted August 5, 2014 Share Posted August 5, 2014 Anybody here using the Canon 16-35mm f/4 L lens. I have been struggling for some time with the 17-40mm and it's soft corners on a full frame, i understand that the 16-35 f/4 is better in this area. Some real user advice would be very appreciated. Thanks! Paul. Link to comment Share on other sites More sharing options...
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