Premium Member Uli Meyer Posted May 26, 2022 Premium Member Share Posted May 26, 2022 1 hour ago, Max S. Moore said: How much light is lost when using an 85A filter? 2/3 rd of a stop for 85 and 85B. I expect to be the same for 85A. Link to comment Share on other sites More sharing options...
Sam Coombes Posted April 8 Share Posted April 8 Any issues using an 85b stacked with a circular polarising filter? Also, should the CP be stacked before or after the 85b when using 500T? Link to comment Share on other sites More sharing options...
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