pippy Posted July 31, 2022 Share #21 Â Posted July 31, 2022 Advertisement (gone after registration) 11 hours ago, Danner said: The Leica "glow", is it radioactive? Â Inquiring minds want to know... Not radioactive but ostensibly contagious within certain 'societal groupings'. Philip. 1 Link to post Share on other sites More sharing options...
Advertisement Posted July 31, 2022 Posted July 31, 2022 Hi pippy, Take a look here Is the Leica 35mm Summicron V3 Radioactive?. I'm sure you'll find what you were looking for!
Jeff S Posted July 31, 2022 Share #22 Â Posted July 31, 2022 Seems a lot of people here get a charge out of using theirs. Â Jeff Link to post Share on other sites More sharing options...
logan2z Posted August 1, 2022 Share #23 Â Posted August 1, 2022 18 hours ago, Jeff S said: Seems a lot of people here get a charge out of using theirs. Â Jeff It does seem to get glowing reviews. 1 Link to post Share on other sites More sharing options...
sometimesmaybe Posted August 3, 2022 Share #24  Posted August 3, 2022 On 7/31/2022 at 9:31 PM, rramesh said: Not sure how accurate this is, but it might be useful for OP.  https://camerapedia.fandom.com/wiki/Radioactive_lenses i don't know if that version is hot, but i recently bought a geiger counter online from jeff bezos... to test all my vintage glass - just to help me sleep at night 😅 so far the general camerapedia list has been reliable Link to post Share on other sites More sharing options...
28framelines Posted August 3, 2022 Author Share #25  Posted August 3, 2022 3 hours ago, sometimesmaybe said: i don't know if that version is hot, but i recently bought a geiger counter online from jeff bezos... to test all my vintage glass - just to help me sleep at night 😅 so far the general camerapedia list has been reliable Thank you. I was looking at that. Currently I’m waiting for a call from someone from the Fire Hall to see if they have a Geiger counter (someone else’s suggestion) and if not I might go that route (buy one) Link to post Share on other sites More sharing options...
Herr Barnack Posted August 3, 2022 Share #26  Posted August 3, 2022 On 7/31/2022 at 11:12 AM, spydrxx said: My daughter "glows" when somebody compliments her photographs....just sayin😄  😳 Have you checked her with a geiger counter? 2 Link to post Share on other sites More sharing options...
1joel1 Posted August 3, 2022 Share #27 Â Posted August 3, 2022 Advertisement (gone after registration) So, as a physicist, when I studied in school and did experiments in lab (many, many years ago) Thorium gives off alpha and beta particle. Alpha particles can't penetrate your skin, whereas the Beta might. Anyway, we were using quite active sources and measure peak output and Compton scattering. They basic rule was never eat when near the sources, that's it. My 1964 Tele-Elmarit 90mm chrome lens is radioactive and is spectacular. Joel 1 Link to post Share on other sites More sharing options...
Calvito Posted August 6, 2022 Share #28 Â Posted August 6, 2022 (edited) If something is a bit radioactive, it is not necessarily a bad thing. It is only a problem when the amount gets too high. This might put things in perspective for you? Â Sorry, can;t get the link to work. Will fix it later! Â https://www.thoughtco.com/radioactive-everyday-products-608655This Edited August 6, 2022 by Calvito Link to post Share on other sites More sharing options...
AndreasG Posted August 6, 2022 Share #29 Â Posted August 6, 2022 As long as the average human body generates Beta and Gamma radiation with an intensity of around 5.000Bq (this is per second!) due to the radioactive Potassium-40 isotope (half life 1.3 Bill years) which we carry by nature in our blood and body, I would not be overly concerned about radiation stemming from lens which usually is kept in a certain distance from the body most of the time. Link to post Share on other sites More sharing options...
Photoworks Posted August 6, 2022 Share #30 Â Posted August 6, 2022 Radioactive? if you are worried about cancer don't carry electronic in you pockets. still no guarantees. most likely not the lens or the camera. Â Some lenses that Leica that where special made for the Military had higher radioactivity . this lenses where called Elcan and came often in a box with the Leica KE-7a they are rare and expensive, Still an amazing resolution lens, made in the 70's for arial photography. Link to post Share on other sites More sharing options...
tommonego@gmail.com Posted August 6, 2022 Share #31 Â Posted August 6, 2022 vor 5 Stunden schrieb Photoworks: Some lenses that Leica that where special made for the Military had higher radioactivity . this lenses where called Elcan and came often in a box with the Leica KE-7a they are rare and expensive, Still an amazing resolution lens, made in the 70's for arial photography. I knew a photographer on a aircraft carrier, he used the KE-7 as his basic documentation camera. He loved it, once made a comment about being on a ship with atomic bombs and worrying about radioactive lenses. The carrier he was on was being decommisioned, he was told to throw the KE-7 overboard, couldn't do that. 1 1 Link to post Share on other sites More sharing options...
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