Can You Use Ozone Generator Cameras And Lenses
 Posted: Sat Jan 28, 2012 5:52 pm Post subject field: innovative and drastic manner of remove mucus |  |
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| Fungus are one of our daemons. Once infected, the lenses (even carfully cleaned) can develop again more fungus due to the remaining spores. That'south what I told my friend Angels, that is a beginner with the MF lenses and her Olympus E-P1 (This is her picture repository) Martinsmith was so kind of sending me a nice FD 50mm 1.eight, (a niggling fungused) for her. I dismounted the forepart chemical element, where well-nigh of the fungus was visible and cleaned information technology. Next, I put the lens under the UV bath for a couple of days. And gave it to Angels (thanks, Martin!). She didn't tell me, only remembered what I told her about the fungus. She was a little scared most the lens ans its infectious capabilities. She'due south working at a large hospital and they have several autoclaves to sterilyze many things fabricated upwards of steel, glass and fabric. She knows the autoclave kills fungus, and being the lens made of glass, metal and strong plastic, should'nt pose any problem. But she didn't tell me earlier. I would have suggested to take autonomously the lens and put it into the autoclave in parts... Then the lens went into the autoclave and passed a cycle to impale fungus. Some days later nosotros met to talk about photography and share a coffea, and he brougth me the lens, and explained the process. In spite of the current consequence, the idea seems very practiced to me. A manner of assure the fungus are killed fifty-fifty if they are inside small and unaccessible places. So we'll take to echo the test in unlike conditions, not with the whole lens assembled. She took some pictures to document it: And this is the lens after the handling: At present is time for a detach. A Regards. _________________ Jesito, Moderator  Jesito's backsack: | |
| Posted: Sat Jan 28, 2012 half dozen:04 pm Mail service discipline: | |
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| Hmmm... I don't know what to remember about information technology. You lot remove the fungus and pay for it by having stains on the front element and non-working blades? BTW, I have started to experiment with ozone. Likewise some kind of dangerous stuff, tin impairment your lungs. _________________ Personal forum activity on pause every now and once again (due to job obligations)! Carsten, former Moderator My gear: http://retrocameracs.wordpress.com/ausrustung/ Old list: http://forum.mflenses.com/viewtopic.php?t=65 (Not up-to-engagement, distressing!) | http://world wide web.lucispictor.de | http://world wide web.alensaweek.wordpress.com | | |
| Posted: Sun Jan 29, 2012 6:31 am Post discipline: | | ||
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I retrieve the problem was to put the whole lens assembled into the autoclave. Maybe there was some fluid (water or whatsoever else) that vaporized with the temperature and left that marks on the top lenses, (left nothing on the bottom ones) and probably left some eolith between the diaphragm blades that stuck them. But I see no traces of the previous fungus. I'one thousand disassemblng information technology right now, I'thousand hopeful that this processs (done in the proper way) can be safety for assuring mucus removal. BTW, how do y'all go ozone?. Be conscientious, it's aggressive. (as you probably know). Regards. _________________ Jesito, Moderator Jesito's backsack: | |||
| Posted: Dominicus January 29, 2012 9:52 am Mail service subject area: | |
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| All water should vanish in the initial vacuum handling of an autoclave - but equally the lens would afterward exist flooded with 121�C hot steam, there would be more h2o inside after than before the procedure... _________________ Sevo Terminal edited past Sevo on Lord's day Jan 29, 2012 10:23 am; edited 1 time in full | |
| Posted: Sun Jan 29, 2012 10:eighteen am Post subject field: | |
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| In former days, when a fungus infected lens came back to Zeiss Jena service, they threw away the complete glasses and the metall barrel was put into a sleeping accommodation with fungizid poison to kill the fungus. Klaus _________________ my Ebay auctions Canon 5D II, | |
| Posted: Dominicus Jan 29, 2012 10:23 am Post subject: | | ||
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Ozone tin can only be generated, every bit it is unstable. You can buy small-scale ozone generators for aquarium and koi pond use all over ebay. Those with a integrated pump might do, but I yet am sceptical whether a whole lens handling with domicile-mash equipment can exist successful. On reasonably dust sealed lenses it might be close to impossible to become a sufficient ozone concentration into the space between the cells in the short period until the ozone breaks up. You'd probably have to evacuate the lens showtime - at which signal you'd need a pile of expensive advanced lab equipment. So there is the take a chance of destroying rubber grips or oxidizing all grease in the lens solid - these components might prove more vulnerable to ozone than mould spores. _________________ Sevo | |||
| Posted: Monday Feb twenty, 2012 3:36 am Post subject: | | ||||
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| Absurd method! Instead of an autoclave 20-30mins in an pressure cooker will likewise work well to kill the fungus and spores.
I think the problem are the lubes in the lens which were evaporitating and keen partially, causing hardening and condensation while cooling down the lens again which caused the stains and the stuck aperture blades. Besides many plastics contain softener agents which are fairly volatile - and some common plastics are non able to withstand temperatures above 100�C, causing slow deformation. Proceed that in mind when your lens has some plastic parts. For unmarried glas or metall parts it should piece of work very well indeed. Y'all take to warm upwards and cool downwards everything very slowly every bit the heat might cause tension in the glas. Overall an elegant method and good idea. Ozone can be generated by electric disscharge or very strong UV radiation... at that place are some cheap generators on Ebay. >=6% H2O2 is a little less ambitious than ozone but will besides kill and remove the mucus and any spores. If yous don't care about coatings, or all the other methods didn't work you can use 5-15% ammonia + 15-30% H2O2 about 1:1 - that will hydrolyse and deliquesce any mucus very easy and fast while not etching or hazing the glas (but the mix will also dissolve almost coatings very easy). _________________ I'm not a collector, I'm a tester  My camera: Sony A7+Zeiss Sonnar 55/one.8 Current favourite lenses (I accept many more): A few macro-Tominons, Samyang 12/2.8, Noritsu 50.7/nine.5, Rodagon 105/5.half dozen on bellows, Samyang 135/2, Nikon ED 180/2.8, Leitz Elmar-R 250/iv, Celestron C8 2000mm F10 Most wanted: Samyang 24/1.iv, Samyang 35/1.4, Nikon 200/ii ED My Blog: http://picturechemistry.own-blog.com/ | |||||
| Posted: Mon Feb 20, 2012 iii:20 pm Post discipline: | |
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| Originally, I apply ozone in social club to destroy smells from used bags and then on. That stuff works wonder there. But after I take put a lens within a airtight plastic purse in which the ozone is procuded past a minor generator and left it in there, I can't judge if it has helped or non. The lens did not take any fungus, just some "thing" inside which could accept been anything. I would not be able to say that ozone helps against fungus infection and would rather think it doesn't. _________________ Personal forum action on intermission every now and again (due to job obligations)! Carsten, former Moderator My gear: http://retrocameracs.wordpress.com/ausrustung/ Old list: http://forum.mflenses.com/viewtopic.php?t=65 (Not upward-to-appointment, sorry!) | http://www.lucispictor.de | http://www.alensaweek.wordpress.com | | |
Source: http://forum.mflenses.com/innovative-and-drastic-way-of-remove-fungus-t46703.html
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