cosmicblue Posted June 17, 2011 Share #1 Posted June 17, 2011 Advertisement (gone after registration) I have recently bought a 2nd hand m8.2 (so this is my first post having searched the threads first) and love taking photos once again. However, I noticed that with my Zeiss Sonnar 50mm I cannot get the rangefinder focusing images to align at infinity (it stops short). With a 28mm Elmarit mounted I do not get this issue and the two images do align. I am not a technical wizard so am not sure if this is something to do with the talked about focus shift characteristics of this lens - i.e. I can get nice sharp images at minimum focusing distance wide open with this lens, and wonder whether the lens has been set up in a particular way with pay-off at the infinity end. When taking an image at infinity, at an aperture of 5.6 everything comes out in focus, so is it the Rangefinder and I need to get the body serviced? I get the sense the body was well used before I purchased it, but I have no idea whether it has ever been serviced. The Zeiss and Elmarit were bought new. Thanks for any thoughts. Edward Link to post Share on other sites More sharing options...
Advertisement Posted June 17, 2011 Posted June 17, 2011 Hi cosmicblue, Take a look here Infinity focusing issue - M8.2/Zeiss 50mm Sonnar. I'm sure you'll find what you were looking for!
ho_co Posted June 17, 2011 Share #2 Posted June 17, 2011 Edward, welcome to the forum! Focus shift is an optical phenomenon, and what you're describing is mechanical: This isn't focus shift. One possibility is that the camera rangefinder is out of adjustment; but since your 28 works fine, the problem is probably with the lens. If it's the lens, there are two possibilities: the lens actually reaches infinity at the infinity stop, even though the rangefinder doesn't line up; or the lens' infinity stop is improperly set, and it doesn't reach infinity. In either case, the lens could benefit from an adjustment. If the lens is sharp wide open at the infinity stop, and if you can live with the rangefinder not lining up, then things are okay as is. If the lens isn't sharp wide open when focused to the infinity stop, then the infinity stop needs adjusting. If you've got another body to check the lens on (film or digital), that would be a good place to start in figuring out whether it is a lens problem or a camera one. Link to post Share on other sites More sharing options...
cosmicblue Posted June 17, 2011 Author Share #3 Posted June 17, 2011 Dear Howard, Many thanks for sharing your expertise. Unfortunately I don't have another body to try it on, so will go out over the weekend with a tripod and take a few photos as suggested. I'd be a little unhappy if a new lens is mechanically off out of the box, so I'll get back in touch with Ace Camera's if needed and hope they are supportive. I'll miss the lens if it has to go away - it lives on my camera I like it so much! Edward Link to post Share on other sites More sharing options...
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