lburn Posted December 12, 2011 Share #1 Â Posted December 12, 2011 Advertisement (gone after registration) The diaphragm leaves on my 35mm Summicron ASPH (latest version) open wider than they are at the marked f2 aperture. At f2 a "fringe" is visible when you look directly down on the front lens element and this disappears completely when the aperture ring is moved slightly beyond f2. The movement is only very slight before the lens comes to a stop. At which setting is the true f2 aperture? I expect this is quite a common occurrence for those with more equipment and experience than me and apologies if this topic has been covered elsewhere . lburn Link to post Share on other sites More sharing options...
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mjh Posted December 12, 2011 Share #2  Posted December 12, 2011 I expect this is quite a common occurrence for those with more equipment and experience than me and apologies if this topic has been covered elsewhere . Indeed it has – in a thread you’ve started yourself, about a week ago: http://www.l-camera-forum.com/leica-forum/customer-forum/212392-real-maximum-aperture-setting.html. Link to post Share on other sites More sharing options...
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