Al Brown Posted October 22, 2022 Author Share #21 Posted October 22, 2022 Advertisement (gone after registration) The lens carefully fitted with M10-P Reporter 😊. 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 Quote 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/336390-old-delft-minor-35mm-thread/?do=findComment&comment=4542025'>More sharing options...
Advertisement Posted October 22, 2022 Posted October 22, 2022 Hi Al Brown, Take a look here Old Delft Minor 35mm thread. I'm sure you'll find what you were looking for!
Al Brown Posted October 25, 2022 Author Share #22 Posted October 25, 2022 Photos from October holidays at sea. Old Delft Minor 35/3.5 mostly wide open and M10-R. Part 1: 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! 2 Quote 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/336390-old-delft-minor-35mm-thread/?do=findComment&comment=4544861'>More sharing options...
Al Brown Posted October 25, 2022 Author Share #23 Posted October 25, 2022 Part 2: 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 Quote 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/336390-old-delft-minor-35mm-thread/?do=findComment&comment=4544862'>More sharing options...
Al Brown Posted December 4, 2022 Author Share #24 Posted December 4, 2022 Old Delft Minor 35/3.5 wide open & M10-R BP. 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 Quote 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/336390-old-delft-minor-35mm-thread/?do=findComment&comment=4588064'>More sharing options...
sandro Posted December 4, 2022 Share #25 Posted December 4, 2022 Al, you are showing us not only a fascinating part of optical history connected with Leica, but also fascinating examples of what this lens is still capable of, wonderful! Lex 1 Quote Link to post Share on other sites More sharing options...
DoK Posted December 12, 2022 Share #26 Posted December 12, 2022 Beautiful! Remind me polaroid cards... memories, dreams... 1 Quote Link to post Share on other sites More sharing options...
jankap Posted December 12, 2022 Share #27 Posted December 12, 2022 (edited) Advertisement (gone after registration) On 12/4/2022 at 3:47 PM, sandro said: Al, you are showing us not only a fascinating part of optical history connected with Leica, but also fascinating examples of what this lens is still capable of, wonderful! Lex +1 And that wide open! I have worked at Old Delft (Optische Industrie "De Oude Delft") in 1961. They did not manufacture this lens any more, but I was offered to get one from spare parts. I liked longer than 50mm lenses more at that time. But a colleague made decent pictures with it. Edited December 12, 2022 by jankap 2 Quote Link to post Share on other sites More sharing options...
Al Brown Posted December 18, 2022 Author Share #28 Posted December 18, 2022 Kino International (1963) in Berlin. M10-R and Minor 35mm f/3.5 wide open. 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! 4 Quote 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/336390-old-delft-minor-35mm-thread/?do=findComment&comment=4604303'>More sharing options...
Al Brown Posted March 24, 2023 Author Share #29 Posted March 24, 2023 (edited) The shut down Tempelhof airport, now a recreational space in the heart of Berlin. One of the last pre-WWII airports in Europe. The Berlin Airlift, Operation Little Vittles and US forces accessing West Berlin during the cold war all happened here. Leica M10-R BP, Old Delft Minor 35 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 24, 2023 by Al Brown 3 Quote 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/336390-old-delft-minor-35mm-thread/?do=findComment&comment=4736136'>More sharing options...
Al Brown Posted April 24, 2023 Author Share #30 Posted April 24, 2023 Wonderful bokeh wide open. 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! 2 Quote 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/336390-old-delft-minor-35mm-thread/?do=findComment&comment=4757392'>More sharing options...
Alberti Posted September 20, 2023 Share #31 Posted September 20, 2023 I’ll spoil the market a bit - when I got interested in the Alpa versions (family members have an Alpa) I read that many of their rangefinder (=early) and TTL lenses were APO lenses. And that does make a difference. Now there has been some questioning of that term APO as used in the past vs. now. There will be a slight technical difference. Colour balance was a hot issue then; if I undertstand that nowadays also the focus point entered in the definition. But I just want to give the heads up to this lens. Also some version of the Elmar might fall in a lax definition of apochromatic, at least having a balanced and good red channel so to speak. Unfortunately they fog up. 1 Quote Link to post Share on other sites More sharing options...
Al Brown Posted October 23, 2023 Author Share #32 Posted October 23, 2023 On 9/20/2023 at 4:46 PM, Alberti said: I’ll spoil the market a bit - when I got interested in the Alpa versions (family members have an Alpa) I read that many of their rangefinder (=early) and TTL lenses were APO lenses. And that does make a difference. Now there has been some questioning of that term APO as used in the past vs. now. There will be a slight technical difference. Colour balance was a hot issue then; if I undertstand that nowadays also the focus point entered in the definition. But I just want to give the heads up to this lens. Also some version of the Elmar might fall in a lax definition of apochromatic, at least having a balanced and good red channel so to speak. Unfortunately they fog up. The best kept APO secret in Leica universe is the 50 Summilux ASPH... Because the good Germans thought back then that both ASPH *and* APO designations on the barrel would be too much lol. Today the APO is a super strong Leica marketing tool with a hefty premium. Quote Link to post Share on other sites More sharing options...
zeitz Posted October 23, 2023 Share #33 Posted October 23, 2023 On 9/20/2023 at 9:46 AM, Alberti said: I’ll spoil the market a bit - when I got interested in the Alpa versions (family members have an Alpa) I read that many of their rangefinder (=early) and TTL lenses were APO lenses. And that does make a difference. Now there has been some questioning of that term APO as used in the past vs. now. There will be a slight technical difference. Colour balance was a hot issue then; if I undertstand that nowadays also the focus point entered in the definition. But I just want to give the heads up to this lens. Also some version of the Elmar might fall in a lax definition of apochromatic, at least having a balanced and good red channel so to speak. Unfortunately they fog up. Chromatic aberration is well defined in physical optics and results because different colors / wavelengths of light bend at different angles going through a medium such as glass. Chromatic lenses are described by the ability of a lens to focus different wavelengths on the same image plane. Achromats were invented by astronomers well before the invention of photography. Achromats focus two wavelengths to the same plane. The quest to improve chromatic aberrations has lead to apochromats (three wavelengths focused to the same plane) and super-achromats (four wavelengths focused to the same plane). The achromat / apochromat / super achromat ways nothing about how far off the wavelengths are that don't focus to the same plane. This is what Leica AG's site says: APO: Stands for ‘apochromatically corrected’. In normal lens designs, blue and green light converges on one focal plane, while the (longer) wavelength of red light is refracted to a slightly different plane of focus. This effect (known as ‘chromatic aberration’, or ‘color fringing’) is more pronounced in longer focal lengths – making it a particular problem in long telephoto lenses. With APO lenses, on the other hand, the construction of the lens elements and the use of low-dispersion glass enables all colors to converge at the same point of focus – resulting in a sharper image without color fringing. 1 Quote Link to post Share on other sites More sharing options...
ph. Posted October 24, 2023 Share #34 Posted October 24, 2023 Zeiss produced apochomats for microscopes for more than a 100years ago, the new glass frrom Schott and good calculations made it possible. p. Quote Link to post Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.