andcolor Posted June 12, 2007 Share #1 Posted June 12, 2007 Advertisement (gone after registration) Last night while preparing for a shoot this afternoon, I was cleaning lenses, checking ISO and the like. I swapped lenses around from a 50 to a 28 and just for the heck of it my beautiful 75 sumicron. When I replaced the 75 w. the 50 the lens would not click in to place. I tried again, gently. Tried with each lens and nothing would go fully into place. I got out my now negelected M6 and tried each lens in sucession. No Problem. Each lens went right into place with that nice secure click. I've looked w. a loop at lens and lens mount, cleaned off everything with a special cloth and still an improper connection. Does anyone have experience with this kind of problem? I've used a Leica for a very long time and never had such a thing happen. Any advice? Link to post Share on other sites More sharing options...
Advertisement Posted June 12, 2007 Posted June 12, 2007 Hi andcolor, Take a look here Sudden Problem. I'm sure you'll find what you were looking for!
jaapv Posted June 12, 2007 Share #2 Posted June 12, 2007 Last night while preparing for a shoot this afternoon, I was cleaning lenses, checking ISO and the like. I swapped lenses around from a 50 to a 28 and just for the heck of it my beautiful 75 sumicron. When I replaced the 75 w. the 50 the lens would not click in to place. I tried again, gently. Tried with each lens and nothing would go fully into place. I got out my now negelected M6 and tried each lens in sucession. No Problem. Each lens went right into place with that nice secure click. I've looked w. a loop at lens and lens mount, cleaned off everything with a special cloth and still an improper connection. Does anyone have experience with this kind of problem? I've used a Leica for a very long time and never had such a thing happen. Any advice? Did the 50 fit before this? If so you must have bent something out of alignment on the lens-mount. I'm maybe less careful than you are, I'd try to mount it less gently hoping to align it again.... Link to post Share on other sites More sharing options...
andcolor Posted June 12, 2007 Author Share #3 Posted June 12, 2007 Did the 50 fit before this? If so you must have bent something out of alignment on the lens-mount. I'm maybe less careful than you are, I'd try to mount it less gently hoping to align it again.... Yes. I've been swaping all the 50 and 28 back and forth all the time. The 75 hasn't seen much action - so that was the new wrinkle. But everything has worked perfectly up to now. I've given it a less than gentle twist too, but usually when something doesn't fit on a precise instrument - it's not working!! worried now........ Link to post Share on other sites More sharing options...
Eoin Posted June 12, 2007 Share #4 Posted June 12, 2007 Mark the position of the locking cutout with a felt tip pen on the thin bright side of the lens mount to enable to see if the lens is fully rotating to the locking pin. Check the function of the locking pin to make sure the spring return is operating and returning to the locked position without the lens mounted. Then carefully mount the lens and see if the mark aligns with the pin. Don't force it. If the pin and the mark allicn but the lens does not lock it could be a weak spring or it could just be the spring return has fallen away. All lenses should be able to rotate past the locking pin if the button is held in. Link to post Share on other sites More sharing options...
marknorton Posted June 12, 2007 Share #5 Posted June 12, 2007 Behind the lens mount is a spring ring which presses against the bayonet flanges when you mount a lens. If you look inside the lens throat, just behind the bayonet, you can see small loops of metal at 12, 3, 6, 9 o'clock (in the last case, just anti-clockwise from the lens release button. It's possible one of these had bent out of position and is preventing you mounting the lens. Link to post Share on other sites More sharing options...
andcolor Posted June 12, 2007 Author Share #6 Posted June 12, 2007 I will test your idea. But on last try it seemed that none of the lenses will go past the little locking notch. Actually, that notch is visable w. a very close look (a loupe). So it seems that something is stopping it. I wonder about that little wheel thingy at the top of the body mount. Compared to the M6 it's a bit stiff. Link to post Share on other sites More sharing options...
jaapv Posted June 12, 2007 Share #7 Posted June 12, 2007 Advertisement (gone after registration) I just recalled : I had a Visoflex that would mount on my M6 but not on the M8. It turned out that one of the banjonet lugs was bent slightly out of alignment, it probably suffered a knock at one point of its life. I filed it down using a diamond naillfile and it was fine. The M8 lensmount has tighter tolerances than the film cameras. So it might be the lens. Was it put down a bit too firmly when switching? So it might be the lens. Be careful with that little wheel! It is your rangefinder coupling and can be bent out of adjustement if overstressed! 28/90 mm lenses cannot be turned beyound the locking point. Only 35, 24,50 and 75. They will bring up the 90 mm framelines when you do that. Very practical with unmodified 135"s Link to post Share on other sites More sharing options...
marknorton Posted June 12, 2007 Share #8 Posted June 12, 2007 The "wheel-thingy" (technical term) is the rangefinder coupling roller and you should be able to gently press it in and out. If not, something's jammed and I wouldn't try further. Link to post Share on other sites More sharing options...
wparsonsgisnet Posted June 12, 2007 Share #9 Posted June 12, 2007 Linda, check the mount on the M8 to see if there is something jammed in it where the bayonet rests at the final position. When I bot my first second lens for my M4, it wouldn't mount properly and the guy in my camera store cleaned the mount and solved the problem. Link to post Share on other sites More sharing options...
andcolor Posted June 12, 2007 Author Share #10 Posted June 12, 2007 Behind the lens mount is a spring ring which presses against the bayonet flanges when you mount a lens. If you look inside the lens throat, just behind the bayonet, you can see small loops of metal at 12, 3, 6, 9 o'clock (in the last case, just anti-clockwise from the lens release button. It's possible one of these had bent out of position and is preventing you mounting the lens. Yes - I think that is the problem. A close look shows that the little spring under the lens release button is out of positition. It could be that my old lens is the culprit - but what to do? Is this likely to be an easy fix that can happen at a Leica dealer or does it have to go back to Leica? Link to post Share on other sites More sharing options...
jaapv Posted June 12, 2007 Share #11 Posted June 12, 2007 Yes - I think that is the problem. A close look shows that the little spring under the lens release button is out of positition. It could be that my old lens is the culprit - but what to do? Is this likely to be an easy fix that can happen at a Leica dealer or does it have to go back to Leica? Can you reposition it using thin tweezers? Link to post Share on other sites More sharing options...
Photoskeptic Posted June 12, 2007 Share #12 Posted June 12, 2007 One thing I've noticed with mine is the lens mount is incredibly tight. It does take a bit of physical effort to mount the lenses. Link to post Share on other sites More sharing options...
marknorton Posted June 12, 2007 Share #13 Posted June 12, 2007 The spring ring sits flat on the front of the casting around the lens throat and the bayonet ring screws on top of it. Sounds like something has snagged the ring and bent the metal. TBH, I don't think this is something you can just pop back into position. The ring is made of spring steel and needs to be removed and reshaped or else replaced. Trying to do it in place and you risk damaging the camera. To get at it, you would need to remove the lens mount and to do that, you need to loosen the top plate. A 10 minute job for someone who has the right tools, but otherwise, it's back to Leica I think. Link to post Share on other sites More sharing options...
andcolor Posted June 12, 2007 Author Share #14 Posted June 12, 2007 The spring ring sits flat on the front of the casting around the lens throat and the bayonet ring screws on top of it. Sounds like something has snagged the ring and bent the metal. TBH, I don't think this is something you can just pop back into position. The ring is made of spring steel and needs to be removed and reshaped or else replaced. Trying to do it in place and you risk damaging the camera. To get at it, you would need to remove the lens mount and to do that, you need to loosen the top plate. A 10 minute job for someone who has the right tools, but otherwise, it's back to Leica I think. You cannot really remove just the lens bayonet ring because the front edge of the top cover slots into the side, so the top needs to come off But it can be fixed without too much trouble? Whew! Camera West in Monterey Ca is a great place. I'll give them a call and if anyone local can solve this problem they are the guys. It's a nice weekend for a drive to Monterey. Thank you all for your help and advice. Any more is welcome and I will let you know what happens. Now it's time to go take a picture w. my mega-moga-not-that-much-fun-to-use Canon5d. Thanks again. Link to post Share on other sites More sharing options...
marknorton Posted June 12, 2007 Share #15 Posted June 12, 2007 Here's a picture of the offending ring, my guess is one of the spring arms has been bent out of shape. 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/26477-sudden-problem/?do=findComment&comment=279560'>More sharing options...
andcolor Posted June 12, 2007 Author Share #16 Posted June 12, 2007 Here's a picture of the offending ring, my guess is one of the spring arms has been bent out of shape. That's the one! And yes the little spring beneath the button is off the track. How did you get that photo? Have you taken apart your camera? Brave. Link to post Share on other sites More sharing options...
reven Posted June 12, 2007 Share #17 Posted June 12, 2007 If you send it to Leica don't be suprised if you have to spend up to a thousand $ for repair...... sorry but I'm not in the bet mood about Leica custom service and repairs.... Link to post Share on other sites More sharing options...
marknorton Posted June 12, 2007 Share #18 Posted June 12, 2007 Linda, I can see you're new here... LOL http://www.l-camera-forum.com/leica-forum/leica-m8-forum/21331-anatomy-leica-m8.html#post224625 I just took out the lens mount to get a picture of the ring for you. A camera tech might be able to make a temporary repair, but you can see the shiny marks on the top of ths springs where the finish wears as a result of the lens being mounted, so you might need to get a new part fitted. It is of course crazy that the camera has to go back to Solms for this. Link to post Share on other sites More sharing options...
jaapv Posted June 12, 2007 Share #19 Posted June 12, 2007 If you send it to Leica don't be suprised if you have to spend up to a thousand $ for repair...... sorry but I'm not in the bet mood about Leica custom service and repairs.... I doubt that. Leica is very accomodating for M8 customers I find. Link to post Share on other sites More sharing options...
reven Posted June 12, 2007 Share #20 Posted June 12, 2007 Yes that is why they send me a bill over 1300Eurs for repairs... a lens repair, which is only 2 months old and not used often. ( And I am really carful with my stuff) They said the bajonett is damaged... And my M8 had the known shutter error. (The one there the shutter keeps going, it was reported a few times here in the past. It often went together with a damaged shutter. A small point on the shutter or similiar. ) Once again, it came from itself. I didn't clean the sensor and I certainly didn't penetrate the shutter with any sharp objects... Sorry but I'm really pissed and I'm not gonna spend 1300EUR on a new camera... I will bring it back to my dealer and let him deal with it, I'm tired of talking to Leica about these problems... Link to post Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.