neelin Posted October 23, 2007 Share #21 Posted October 23, 2007 Advertisement (gone after registration) my shutter blade had a "V" notch in it & made this type of image http://www.l-camera-forum.com/leica-forum/leica-m8-forum/20034-m8-shutter-blade-fracture.html#post212348 robert Link to post Share on other sites More sharing options...
Advertisement Posted October 23, 2007 Posted October 23, 2007 Hi neelin, Take a look here Arc in M8 images. I'm sure you'll find what you were looking for!
marknorton Posted October 24, 2007 Share #22 Posted October 24, 2007 Robert, that's a good point, I'm wondering whether there's a light leak through the shutter at a point which follows an arc as the shutter opens. Keep in mind the sensor is switched on, then the shutter is opened, so if there is a light leak through the shutter, it will show up as a pre-exposure. Also, the mode of operation of the shutter changes at 1/250, so can you corelate this effect with the shutter speed? Link to post Share on other sites More sharing options...
Julius Bjornsson Posted October 24, 2007 Share #23 Posted October 24, 2007 Hi there. I did go outside in the rain yesterday with my M8 with a silver UV/IR filter attached to the lens. And did I get an arc. Do I have a problem? LOL. But this one "might" be a natural one! Anyway, good luck solving the problem, it will be very interesting to see what you guys find. I on the other hand suspect there is nothing wrong with my shutter! Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/36337-arc-in-m8-images/?do=findComment&comment=384227'>More sharing options...
ho_co Posted October 24, 2007 Author Share #24 Posted October 24, 2007 Also, the mode of operation of the shutter changes at 1/250, so can you corelate this effect with the shutter speed? Mark--Thanks for following up on Robert's point. Indeed, all the images I've found that show the arc are shot above flash-synch speed, and most are well above. --HC Link to post Share on other sites More sharing options...
ho_co Posted October 25, 2007 Author Share #25 Posted October 25, 2007 One more thing just struck me: The arc appears only in horizontal frames, not in vertical, even when the lighting attributes are the same, i.e. sun in the same physical part of picture. Am still analyzing; will probably soon try experimenting. --HC Link to post Share on other sites More sharing options...
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