lewis44 Posted August 13, 2014 Share #1 Posted August 13, 2014 Advertisement (gone after registration) This is Kinda' a strange one for me and I hope someone has the answer to this: I recently purchased a DB Leica R4 Data Back. Do not care if the dates were wrong, just needed some coding. Works fine, BUT !! When I use the Data Back on the camera the frame counter does not move from the start position. With the standard back on, the frame counter works fine. I usually have the R motor winder (3 contact one) on the camera and same result either way. Does the Data Back negate the frame (film) Counter or ???? Advise Please. Thanks Link to post Share on other sites More sharing options...
Advertisement Posted August 13, 2014 Posted August 13, 2014 Hi lewis44, Take a look here "Leica R4s Model P" & Data Back Issue. I'm sure you'll find what you were looking for!
lewis44 Posted August 14, 2014 Author Share #2 Posted August 14, 2014 WOW, This looks like a question that stumped the Leica Star's Any Suggestions out there? Link to post Share on other sites More sharing options...
TomB_tx Posted August 15, 2014 Share #3 Posted August 15, 2014 The camera back plate triggers the counter reset when the back is opened. If the camera reset switch doesn't get activated with the back closed, the counter stays in reset mode, and won't move. On the body there is reset "lug" in the upper light seal above the sprocket area - the silver block in this snapshot: 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! The back should have a matching tab that presses that lug inwards when the back is closed. Here's the lug on a standard R4 back: Check your data back for the tab, and if there, see if the back is deformed or something so it won't press the reset lug in the body. Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! The back should have a matching tab that presses that lug inwards when the back is closed. Here's the lug on a standard R4 back: Check your data back for the tab, and if there, see if the back is deformed or something so it won't press the reset lug in the body. ' data-webShareUrl='https://www.l-camera-forum.com/topic/232131-leica-r4s-model-p-data-back-issue/?do=findComment&comment=2649709'>More sharing options...
pierovitch Posted August 15, 2014 Share #4 Posted August 15, 2014 Dug out the data back and tried it on the R5. The frame does advance and the lug operates as illustrated above Link to post Share on other sites More sharing options...
lewis44 Posted August 15, 2014 Author Share #5 Posted August 15, 2014 Thanks guy's, however the lug is there and looks Identical to my standard back Lug 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/232131-leica-r4s-model-p-data-back-issue/?do=findComment&comment=2649728'>More sharing options...
lewis44 Posted August 15, 2014 Author Share #6 Posted August 15, 2014 Full Length 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/232131-leica-r4s-model-p-data-back-issue/?do=findComment&comment=2649729'>More sharing options...
lewis44 Posted August 15, 2014 Author Share #7 Posted August 15, 2014 Advertisement (gone after registration) Another shot 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/232131-leica-r4s-model-p-data-back-issue/?do=findComment&comment=2649737'>More sharing options...
lewis44 Posted August 15, 2014 Author Share #8 Posted August 15, 2014 I just keep scratching my head. I'm going to run through a roll and see what the counter does with the Data Back on at the end. Link to post Share on other sites More sharing options...
TomB_tx Posted August 15, 2014 Share #9 Posted August 15, 2014 It looks like your data back light seals around the edges have been replaced with thicker foam strips. Perhaps they don't compress as easily and hold the back out a bit farther, so the reset latch doesn't press in far enough. Try squeezing that area of the back tighter against the body as you cock the shutter (no need to load film), and see if the counter moves. If so, it may reset back as soon as you stop squeezing that edge tight. The counter is purely mechanical, and the fit of the back looks like the only difference that could affect it. Link to post Share on other sites More sharing options...
lewis44 Posted August 15, 2014 Author Share #10 Posted August 15, 2014 Tom, You were real close. I took the light seals off and same deal. I then pushed the back in and it worked, so I bent the back ever so slightly and it now works like a charm. I'll get some light seal material and go from there. Many Thanks, Randy Link to post Share on other sites More sharing options...
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