Maxime de la Tour Posted July 5, 2020 Share Posted July 5, 2020 Hi, I have a Bauer 88L (standard 8) camera, and looking into the lens I found the diaphragm to have a weird shape (I apologise for the image quality) : Blades open blades closed I have seen super 8 cameras with two blades apertures shaped like sickles, but this looks different. Is it broken ? If not, have you seen any other camera with a similar design ? Sorry if i'ts a newbie question, I'm new to this. Also, there is a switch saying "-2° B", and I can't figure out what it does. Thanks in advance ! Link to comment Share on other sites More sharing options...
Maxime de la Tour Posted July 6, 2020 Author Share Posted July 6, 2020 OK it turns out the switch is for a daylight filter (-2° DIN of correction). Link to comment Share on other sites More sharing options...
Mark Dunn Posted July 7, 2020 Share Posted July 7, 2020 (edited) There's nothing unusual about the stop shapes- it's just to ensure that the effective aperture size is always correct when the "sickle" moves across. These odd protrusions are responsible for the weird lens flare patterns you sometimes see on Super-8. Edited July 7, 2020 by Mark Dunn Link to comment Share on other sites More sharing options...
Maxime de la Tour Posted July 7, 2020 Author Share Posted July 7, 2020 Thanks for the answer. I just found weird that even at full aperture, two "teeth" stayed in the light path. Looking at this post it seems like at f/8 the shape is similar, without the "teeth". Either way that's interesting, not something you would see in still photography Link to comment Share on other sites More sharing options...
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