Lorenzo Lietti Posted August 2, 2017 Share #1  Posted August 2, 2017 Advertisement (gone after registration) A few days ago i noticed my Summicron 50mm looked a bit "foggy", barely noticeable but enough to worry. After taking it to a tech, he said that there was some separation starting due to fungus...and said it could not be cleaned/fixed/repaired.  I am gutted, what do I do? Has this happened to anyone else with a positive outcome? The lens is a 50mm f2 v2 see attached photo  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/275318-summicron-50mm-disaster/?do=findComment&comment=3328928'>More sharing options...
Advertisement Posted August 2, 2017 Posted August 2, 2017 Hi Lorenzo Lietti, Take a look here Summicron 50mm disaster. I'm sure you'll find what you were looking for!
Ecar Posted August 2, 2017 Share #2 Â Posted August 2, 2017 Fungus and separation are different things altogether. Fungus can be removed to a large extent, particularly if it's caught at an early stage. Separation is harder to fix, although it can sometimes be done (at a substantial cost). Send it to a proper technician. Where are you based? Link to post Share on other sites More sharing options...
pico Posted August 2, 2017 Share #3 Â Posted August 2, 2017 If possible get a second opinion. Link to post Share on other sites More sharing options...
Doc Henry Posted August 2, 2017 Share #4  Posted August 2, 2017 Fungus are "eliminated" by UV rays. Put the lens inside a small box with the UV lamp during 48h (try first). Take care of your eyes . UV destroys DNA of fungus. In our Hospital , we eliminate like that when we have Aspergillus another fungus Your Cron has been put in a moist place without airing. Silica gel is also useful in this case,put it in your bag. Can I have a picture of this fungus ? If the lens is damaged I think Ecar is right Lorenzo nice M3 or M2 Henry Link to post Share on other sites More sharing options...
pico Posted August 2, 2017 Share #5  Posted August 2, 2017 Fungus are "eliminated" by UV rays. Put the lens inside a small box with the UV lamp during 48h (try first). Take care of your eyes . UV destroys DNA of fungus.  With respect and skepticism, Doc, I do not think the UV available to us can penetrate lens optics. . Link to post Share on other sites More sharing options...
Wayne Posted August 2, 2017 Share #6 Â Posted August 2, 2017 if you discover you have a lens contaminated by fungus, is it a reason to be concerned about other lenses that you may be storing in close proximity to the contaminated lens? Lets say that you live in an area where fungus contamination is possible, but not likely, and you, unaware of the fact, introduce a contaminated lens to your collection.....does this jeopardize the other lenses? Link to post Share on other sites More sharing options...
Doc Henry Posted August 2, 2017 Share #7  Posted August 2, 2017 Advertisement (gone after registration) Fungus are "eliminated" by UV rays. Put the lens inside a small box with the UV lamp during 48h (try first). Take care of your eyes . UV destroys DNA of fungus. In our Hospital , we eliminate like that when we have Aspergillus another fungus Your Cron has been put in a moist place without airing. Silica gel is also useful in this case,put it in your bag. Can I have a picture of this fungus ? If the lens is damaged I think Ecar is right Lorenzo nice M3 or M2 Henry  Pico the UV lamp must be near the lens and secondly action by reflection Must be in the box 48h or most ? can be try but I wait for the picture to see the type of fungus Best Henry Link to post Share on other sites More sharing options...
Lorenzo Lietti Posted August 2, 2017 Author Share #8 Â Posted August 2, 2017 Fungus and separation are different things altogether. Fungus can be removed to a large extent, particularly if it's caught at an early stage. Separation is harder to fix, although it can sometimes be done (at a substantial cost). Send it to a proper technician. Where are you based? Â I am in San Diego Link to post Share on other sites More sharing options...
Lorenzo Lietti Posted August 2, 2017 Author Share #9  Posted August 2, 2017 Fungus are "eliminated" by UV rays. Put the lens inside a small box with the UV lamp during 48h (try first). Take care of your eyes . UV destroys DNA of fungus. In our Hospital , we eliminate like that when we have Aspergillus another fungus Your Cron has been put in a moist place without airing. Silica gel is also useful in this case,put it in your bag. Can I have a picture of this fungus ? If the lens is damaged I think Ecar is right Lorenzo nice M3 or M2 Henry M3... Link to post Share on other sites More sharing options...
Lorenzo Lietti Posted August 2, 2017 Author Share #10 Â Posted August 2, 2017 As mentioned above I think the biggest problem is the separation of the elements...he did say I could send it to Leica but at what cost? Also as of now it has little effect on the images but I fear it will only get worse and I end up with an awesome looking paper weight. This is the only M lens I have and can't afford another Leica lens so I am already looking at used Voigtlanders, any thoughts? My budget is $400 Link to post Share on other sites More sharing options...
Stealth3kpl Posted August 2, 2017 Share #11  Posted August 2, 2017 Contact Malcolm Taylor at Upper Lye Farm, Leominster, England, UK, HR6 9SZ 0044 1568 770542 He services lenses sent to him from all over the world. If the fungus has only affected the coating of the lens, he can strip the coatings and recoat. He did my Summitar recently. I'm sure dealing with the separation will be a simple matter for him. He is not the quickest, and he will most likely wish to deal with your lens in spring when temperatures are warmer (After cleaning it on receipt, I imagine) to reduce the chance of a problem due to condensation. It will be worth your while phoning him to have a chat, I'm sure. Here's a little article about Malcolm. https://www.worldphotoadventure.com/in-conversation-with-malcolm-taylor/ Pete Link to post Share on other sites More sharing options...
Lorenzo Lietti Posted August 2, 2017 Author Share #12  Posted August 2, 2017 Contact Malcolm Taylor at Upper Lye Farm, Leominster, England, UK, HR6 9SZ 0044 1568 770542 He services lenses sent to him from all over the world. If the fungus has only affected the coating of the lens, he can strip the coatings and recoat. He did my Summitar recently. I'm sure dealing with the separation will be a simple matter for him. He is not the quickest, and he will most likely wish to deal with your lens in spring when temperatures are warmer (After cleaning it on receipt, I imagine) to reduce the chance of a problem due to condensation. It will be worth your while phoning him to have a chat, I'm sure. Here's a little article about Malcolm. https://www.worldphotoadventure.com/in-conversation-with-malcolm-taylor/ Pete  do you have his email address? I am in California Link to post Share on other sites More sharing options...
Stealth3kpl Posted August 2, 2017 Share #13  Posted August 2, 2017 do you have his email address? I am in California No, Malcolm does not deal with emails or internet. Give him a call in your morning. Pete Link to post Share on other sites More sharing options...
Guest JMF Posted August 2, 2017 Share #14  Posted August 2, 2017 do you have his email address? I am in California   Easier to contact John Van Stelten in Colorado :  http://www.focalpointlens.com Link to post Share on other sites More sharing options...
honcho Posted August 2, 2017 Share #15  Posted August 2, 2017 if you discover you have a lens contaminated by fungus, is it a reason to be concerned about other lenses that you may be storing in close proximity to the contaminated lens? Lets say that you live in an area where fungus contamination is possible, but not likely, and you, unaware of the fact, introduce a contaminated lens to your collection.....does this jeopardize the other lenses?  Entirely possible. Link to post Share on other sites More sharing options...
jaapv Posted August 2, 2017 Share #16  Posted August 2, 2017 Fungus are "eliminated" by UV rays. Put the lens inside a small box with the UV lamp during 48h (try first). Take care of your eyes . UV destroys DNA of fungus. In our Hospital , we eliminate like that when we have Aspergillus another fungus Your Cron has been put in a moist place without airing. Silica gel is also useful in this case,put it in your bag. Can I have a picture of this fungus ? If the lens is damaged I think Ecar is right Lorenzo nice M3 or M2 Henry It won't work, this Summicon has UV filtering built into it. Link to post Share on other sites More sharing options...
jaapv Posted August 2, 2017 Share #17 Â Posted August 2, 2017 In your place, being in the USA, I would contact Sherry Krauter. Link to post Share on other sites More sharing options...
jmahto Posted August 3, 2017 Share #18 Â Posted August 3, 2017 Is it possible for these contacts to be listed in a FAQ? Or it can't be done because it is commercial in nature? Link to post Share on other sites More sharing options...
Ecar Posted August 3, 2017 Share #19 Â Posted August 3, 2017 https://www.l-camera-forum.com/topic/148956-repair-specialists/ Â Link to post Share on other sites More sharing options...
edwardkaraa Posted August 3, 2017 Share #20 Â Posted August 3, 2017 It won't work, this Summicon has UV filtering built into it. Â I am not a scientist but I doubt the UV filtering built in the lens is good enough to block the UV from a UV lamp. It's probably designed for atmospheric UV which is much lower in intensity. But of course I could be wrong Link to post Share on other sites More sharing options...
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