Guest Posted March 12, 2021 Share #81 Posted March 12, 2021 Advertisement (gone after registration) Can't say much about your choice of coffee and beer, but the photo is great, the M10M really shows off the lens. Link to post Share on other sites More sharing options...
Advertisement Posted March 12, 2021 Posted March 12, 2021 Hi Guest, Take a look here Summicron collapsible 50mm. I'm sure you'll find what you were looking for!
Erato Posted March 12, 2021 Share #82 Posted March 12, 2021 2 hours ago, Wurlitzer1015 said: Can't say much about your choice of coffee and beer, but the photo is great, the M10M really shows off the lens. Hahaha, coffee and beer are guiltless. Please lay your hands off them. I wish that I can grab something like Grolsch Brewery, Flensburger Gold, or else, but that was the simple subject that I can pick from the convenience store. Coffee? Ahh, we roast our coffee by using Probat roasters at the moment. 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! Summicron 50mm F2 V1 Collapsible, M10M 4 Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! Summicron 50mm F2 V1 Collapsible, M10M ' data-webShareUrl='https://www.l-camera-forum.com/topic/158389-summicron-collapsible-50mm/?do=findComment&comment=4158952'>More sharing options...
John Robinson Posted March 14, 2021 Share #83 Posted March 14, 2021 Another reason to like the Collapsible Summicron 50: the SOMKY close-up adapter (also works with Collapsible Elmar). If you want to shoot closer than 1m or 70cm on a rangefinder (film or digital, without live view), this can be fun. 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! Close-up of the Summicron mounted on the SOMKY taken with a Leica SL and Summicron-R 35 (II), which goes to 30cm. Not quite a dual-range Summicron but close. Flowers taken with a Leica M3 and the Summicron on the SOMKY at closest distance (about 30cm) and f/2.8 on Fuji Superia 400. 5 Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! Close-up of the Summicron mounted on the SOMKY taken with a Leica SL and Summicron-R 35 (II), which goes to 30cm. Not quite a dual-range Summicron but close. Flowers taken with a Leica M3 and the Summicron on the SOMKY at closest distance (about 30cm) and f/2.8 on Fuji Superia 400. ' data-webShareUrl='https://www.l-camera-forum.com/topic/158389-summicron-collapsible-50mm/?do=findComment&comment=4160165'>More sharing options...
Erato Posted March 17, 2021 Share #84 Posted March 17, 2021 (edited) Is this a real deal or it's fake? Geiger-Müller counter reading is 0.437 μSv/h while the other found is above 1.00 μSv/h(Ref URL: https://petapixel.com/2018/06/07/a-radioactive-lens/)? 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! Edited March 17, 2021 by Erato 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/158389-summicron-collapsible-50mm/?do=findComment&comment=4162363'>More sharing options...
Guest Posted March 17, 2021 Share #85 Posted March 17, 2021 Am 14.3.2021 um 09:29 schrieb John Robinson: Another reason to like the Collapsible Summicron 50: the SOMKY close-up adapter (also works with Collapsible Elmar). If you want to shoot closer than 1m or 70cm on a rangefinder (film or digital, without live view), this can be fun. ... Yes, I like the SOMKY goggles adapter too on my Summicron collapsible. If there should be a way to use the SOMKY with an Elmar-M 2.8-50mm collapsible, let me know, please. Link to post Share on other sites More sharing options...
John Robinson Posted March 17, 2021 Share #86 Posted March 17, 2021 29 minutes ago, mnutzer said: Yes, I like the SOMKY goggles adapter too on my Summicron collapsible. If there should be a way to use the SOMKY with an Elmar-M 2.8-50mm collapsible, let me know, please. Hmm. There is a metal baffle at the rear of the Elmar-M 50 and if this is removed the lens can be mounted on the SOMKY. I have tested this and it gives close-up, but not with rangefinder focusing as the rear element in the Elmar is much further back in the lens than on the Summicron. On a film M or M9 etc this means resorting to trial and error and a tape measure, only really useful on a tripod but live view on an M240 or later would also work with such a setup. Link to post Share on other sites More sharing options...
roydonian Posted March 18, 2021 Share #87 Posted March 18, 2021 Advertisement (gone after registration) According to the Leitz instructions for the SOOKY-M, it was "for all 50mm lenses except SUMMARIT". So presumably some change(s) made in the Elmar-M version spoiled this compatability. Link to post Share on other sites More sharing options...
Erato Posted March 18, 2021 Share #88 Posted March 18, 2021 FYR. 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/158389-summicron-collapsible-50mm/?do=findComment&comment=4163291'>More sharing options...
johnkunstadter Posted March 25, 2021 Share #89 Posted March 25, 2021 Bachmantown Road Cemetery, Lancaster County PA 2021. M2-R, Summicron 50/2 Collapsible, HP5+ @ 400 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! 7 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/158389-summicron-collapsible-50mm/?do=findComment&comment=4167356'>More sharing options...
Erato Posted March 25, 2021 Share #90 Posted March 25, 2021 captivating lens 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! 3 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/158389-summicron-collapsible-50mm/?do=findComment&comment=4167512'>More sharing options...
Fefes Posted March 26, 2021 Share #91 Posted March 26, 2021 (edited) On 3/16/2021 at 11:19 PM, Erato said: Is this a real deal or it's fake? Geiger-Müller counter reading is 0.437 μSv/h while the other found is above 1.00 μSv/h(Ref URL: https://petapixel.com/2018/06/07/a-radioactive-lens/)? 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 counter seems to read Millisievert. The excel table states Micro. I think the table is probably wrong. The other thing is that radiation changes with distance according to inverse square of it. So if at 1cm you read something, 2 cm away from it you will read 25% of it, and 4cm you will read 6%, and 8cm you will read 1.5% of it.The number in the table are doses that are filling everything. So that safe dose mean each part of all your body is absorbing that. Comes from the rocks, and comes from the stars. A lens measuring that 0.4 nSv/h (milli) from 1 cm apart, won't do almost anything, unless you eat it, or pulverize it and coat your entire body with it and leave it on for a full year without a shower (DON'T DO THAT :). As for myself, I choose to keep lenses with very low reading (as above) but other lenses, I would never keep even if many assure they are of no concern (eg. radioactive Takumar0. My two Collapsibles are indistinguishable from background cosmic radiation. And this one above would not worry me one bit. But I wouldn't seek one either even if seemed safe. Edited March 26, 2021 by Fefes Typos 1 Link to post Share on other sites More sharing options...
Erato Posted March 26, 2021 Share #92 Posted March 26, 2021 (edited) 3 hours ago, Fefes said: The counter seems to read Millisievert. The excel table states Micro. I think the table is probably wrong. The other thing is that radiation changes with distance according to inverse square of it. So if at 1cm you read something, 2 cm away from it you will read 25% of it, and 4cm you will read 6%, and 8cm you will read 1.5% of it.The number in the table are doses that are filling everything. So that safe dose mean each part of all your body is absorbing that. Comes from the rocks, and comes from the stars. A lens measuring that 0.4 nSv/h (milli) from 1 cm apart, won't do almost anything, unless you eat it, or pulverize it and coat your entire body with it and leave it on for a full year without a shower (DON'T DO THAT :). As for myself, I choose to keep lenses with very low reading (as above) but other lenses, I would never keep even if many assure they are of no concern (eg. radioactive Takumar0. My two Collapsibles are indistinguishable from background cosmic radiation. And this one above would not worry me one bit. But I wouldn't seek one either even if seemed safe. Thank you so much for sharing your POV. Current reading from the Radiation Inspector (0.437 μSv/h at 0.5cm) is relatively safe and your comments above also reduced my concerns as well. I'd add a filter on it and keep the metal cap in place all the time. 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! Edited March 26, 2021 by Erato 6 1 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/158389-summicron-collapsible-50mm/?do=findComment&comment=4168058'>More sharing options...
johnkunstadter Posted March 26, 2021 Share #93 Posted March 26, 2021 Winter in Amish country. Lancaster County PA 2021. M2-R, Summicron 50/2 collapsible, HP5+ @ 400 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! 12 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/158389-summicron-collapsible-50mm/?do=findComment&comment=4168260'>More sharing options...
Erato Posted April 24, 2021 Share #94 Posted April 24, 2021 Cat under the shadow of the building. 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! Summicron 50mm F2 V1 Collapsible, M10M 8 Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! Summicron 50mm F2 V1 Collapsible, M10M ' data-webShareUrl='https://www.l-camera-forum.com/topic/158389-summicron-collapsible-50mm/?do=findComment&comment=4187509'>More sharing options...
Keith (M) Posted April 24, 2021 Share #95 Posted April 24, 2021 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! 5cm Summicron Collapsible LTM, M10M. 10 1 Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! 5cm Summicron Collapsible LTM, M10M. ' data-webShareUrl='https://www.l-camera-forum.com/topic/158389-summicron-collapsible-50mm/?do=findComment&comment=4187717'>More sharing options...
Erato Posted July 1, 2021 Share #96 Posted July 1, 2021 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! Summicron 50mm F2 V1 Collapsible(B+W Close-Up NL5 +5E adapted), M10-P 3 Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! Summicron 50mm F2 V1 Collapsible(B+W Close-Up NL5 +5E adapted), M10-P ' data-webShareUrl='https://www.l-camera-forum.com/topic/158389-summicron-collapsible-50mm/?do=findComment&comment=4229931'>More sharing options...
frame-it Posted August 21, 2021 Share #97 Posted August 21, 2021 On 3/5/2021 at 4:50 PM, luigi bertolotti said: 1.043.xxx ... and a bit of yellow hue... it can be one of the items made with the new LaK9 Leiz glass, but with tools still "contaminated" by the Thorium of the previous batches... 😉 (see this excellent article, where 1.044.590 is displayed : http://www.marcocavina.com/articoli_fotografici/50mm_Leica_a_telemetro/00_pag.htm ) 1 1 Link to post Share on other sites More sharing options...
a.noctilux Posted August 21, 2021 Share #98 Posted August 21, 2021 On 3/18/2021 at 3:54 PM, Erato said: FYR. 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! I know now why so many writings as SOMKY with reproduction ratio as from 1:5.5 to 1:15 For a big while, I tried in the past to correct this for decade as happy user of many SOMKY which have the marking and hard stop at 1:7.5 to 1:15 Not a big deal ! I know I can't change the reference book, just a small error would not be spread around ... Link to post Share on other sites More sharing options...
Alberti Posted August 22, 2021 Share #99 Posted August 22, 2021 Mr Cavina wrote about a thoriated, radioactive lens that had a piece of lead-glass in front of the film, otherwise the film would get an exposure, slowly. For normal use though, it is harmless, remember: the radiation from walls made with Gyproc radiate more and are around us all day (office ...) 😒 And those who are frequent travellers, I don't have to finish the sentence (is it a sentence they get?? Pun intended) 1 Link to post Share on other sites More sharing options...
Aryel Posted September 28, 2021 Share #100 Posted September 28, 2021 Hello, This is a very interesting thread and a very tempting lens. For shooting, is there any advantage on the radioactive version or is this a collector value? Thank you so much 😊 Link to post Share on other sites More sharing options...
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