Ram Nanda Posted August 2, 2021 Share Posted August 2, 2021 Apart from shape of bokeh, what are the pros and cons of having more iris blades ? Cooke S7i (image circle : 46.3 mm) - 9 blades Zeiss CP3 (image circle : 46.3 mm) - 15 blades Zeiss Supreme (image circle : 46.3 mm) - 16 blades Arri Signature (image circle : 44.7 mm) - 11 blades Leica Thalia (image circle : 60 mm) - 15 blades Quote Link to comment Share on other sites More sharing options...
jacob larsen Posted August 2, 2021 Share Posted August 2, 2021 You will find an excellent read about this exact question here: https://www.dpreview.com/forums/thread/4325273 A few key-words: star-bursts, diameter of lens-house. Quote Link to comment Share on other sites More sharing options...
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