Revdockj Posted August 15, 2009 Share #1 Posted August 15, 2009 Advertisement (gone after registration) I recently got a 75mm summicron for my M8 and sometimes (only once in a while) when I focus up close (around it's limit), the framelines slightly move as I release the shutter. Weird! Anyone else had this happen? Ken Link to post Share on other sites More sharing options...
Advertisement Posted August 15, 2009 Posted August 15, 2009 Hi Revdockj, Take a look here Has anyone else had this issue?. I'm sure you'll find what you were looking for!
Nicoleica Posted August 15, 2009 Share #2 Posted August 15, 2009 I recently got a 75mm summicron for my M8 and sometimes (only once in a while) when I focus up close (around it's limit), the framelines slightly move as I release the shutter. Weird! Anyone else had this happen? Ken Hi Ken, Does anything rattle when you gently shake your camera, or have you dropped it by chance? It's perfectly normal for the framelines to move as you focus close-up, but I wouldn't expect them to move as you release the shutter, unless you are moving the focus at the same time. Link to post Share on other sites More sharing options...
SJP Posted August 15, 2009 Share #3 Posted August 15, 2009 If you focus around (or just beyond) the limit it is not impossible that the roller and the lens loose contact in which case the rangefinder mechanism might be able to shift a bit further under the influence of the shutter vibration. The rangefinder patch shifts to the right and down as you focus closer - so that would explain it. Link to post Share on other sites More sharing options...
Knorp Posted August 15, 2009 Share #4 Posted August 15, 2009 I recently got a 75mm summicron for my M8 and sometimes (only once in a while) when I focus up close (around it's limit), the framelines slightly move as I release the shutter. Weird! Anyone else had this happen? Ken Hi Ken, happens all the time with my cam, not sure though if it's only related to the 75'cron. When I release the shutter the frame lines seem to 'jump'. First I became a little annoyed and thought for the worst, but now after 2,5 years I doesn't bother me anymore. Besides I developed more quirks myself than my cam has Kind regards. Link to post Share on other sites More sharing options...
UliWer Posted August 15, 2009 Share #5 Posted August 15, 2009 Just tried this about a dozen times: no movement of the framelines at all - but sometimes I realize, that i don't keep the camera steady when i release the shutter, so i get some movement of the image i have in the viewfinder. Did you try it on a tripod with a cable release to eliminate movements of the camera? Link to post Share on other sites More sharing options...
Revdockj Posted August 15, 2009 Author Share #6 Posted August 15, 2009 Thanks, All, Yes, the camera was in a case and slipped to the floor from the back of a chair (only about a foot or two above a hardwood floor). Maybe that jolted it enough. The movement of the frames is slightly downward and to the right. And I have only noticed it since using the 75mm lens and only at the closest of ranges. Weird. It doesn't seem to have any effect upon sharpness of the photo or anything. Bart, do the frames "jump" for you all the time or just occasionally? Ken Link to post Share on other sites More sharing options...
Anguish Posted August 16, 2009 Share #7 Posted August 16, 2009 Advertisement (gone after registration) "If you focus around (or just beyond) the limit it is not impossible that the roller and the lens loose contact in which case the rangefinder mechanism might be able to shift a bit further under the influence of the shutter vibration. The rangefinder patch shifts to the right and down as you focus closer - so that would explain it." The M8 rangefinder will focus only to within about 24 inches, yet some lenses (not sure about your 70 mm) can focus closer than this - at which time the rangefinder roller and lens may lose contact, as noted above. In such instances (I have seen this in the 21 mm Elmarit in a focus test, but not on longer lenses) the rangefinder will say the image is in focus but the lense can be focused closer and the recorded image (f stop not withstanding) will be OF. Link to post Share on other sites More sharing options...
Bo_Lorentzen Posted August 16, 2009 Share #8 Posted August 16, 2009 Ken, That is parallax correction. the viewfinder frame marks are compensating for the fact that the lens is about 2 inches to the right of the window, this would cause your image to be cropped wrongly unless the frames moves. so the camera use the focus distance to adjust the correct position of the marks for that distance. . Link to post Share on other sites More sharing options...
Knorp Posted August 16, 2009 Share #9 Posted August 16, 2009 Thanks, All,Yes, the camera was in a case and slipped to the floor from the back of a chair (only about a foot or two above a hardwood floor). Maybe that jolted it enough. The movement of the frames is slightly downward and to the right. And I have only noticed it since using the 75mm lens and only at the closest of ranges. Weird. It doesn't seem to have any effect upon sharpness of the photo or anything. Bart, do the frames "jump" for you all the time or just occasionally? Ken Just occasinally, Ken. Link to post Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.