D A V I D Posted February 23, 2021 Share #1 Posted February 23, 2021 (edited) Advertisement (gone after registration) While I like Hendrix, I don't like what I saw when looking a some images taken on a trip Sunday: Purple haze in the right lower corner. Taken with an M262 and the new CV 50mm 1.5 Nokton II at f2 or f1.5. Is this to be expected / normal with a non Leica lens? It's 900 € after all.... not exactly cheap. In any case, I have not seen it on the spot and it ruined several images (ok, I can correct in post, not a biggie). 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 February 23, 2021 by D A V I D 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/318301-purple-haze/?do=findComment&comment=4147327'>More sharing options...
Advertisement Posted February 23, 2021 Posted February 23, 2021 Hi D A V I D, Take a look here Purple haze?. I'm sure you'll find what you were looking for!
a.noctilux Posted February 23, 2021 Share #2 Posted February 23, 2021 Hello David, I don't have same Nokton, so can't try . Had you set the type of lens in use as Leica lens ( manual lens detect set to try as 50 or why not 35mm ? ). Quote Link to post Share on other sites More sharing options...
D A V I D Posted February 23, 2021 Author Share #3 Posted February 23, 2021 I forgot to say indeed, the lens was set as Leica 50mm 1.2. Quote Link to post Share on other sites More sharing options...
a.noctilux Posted February 23, 2021 Share #4 Posted February 23, 2021 (edited) If this setting is not "right", I'd try another setting or nothing ( "off" ) to see what happens. In my experience, some of my exotic wide angle lenses (symetrical type) can not be "right" on M240 but "pass rather well" on M9 and of course Monochrom. Super-Angulon 21mm or another LTM mount non Leica 28mm are in this case. Some artifact would remain. Adan has some explanations here Edited February 23, 2021 by a.noctilux Quote Link to post Share on other sites More sharing options...
pippy Posted February 23, 2021 Share #5 Posted February 23, 2021 Nice bike! How deep-set does the rear-most element of the Voigt. sit in the lens throat? If the element is fairly close to the sensor it might explain things due to the acuteness of the angle at which the light rays hit the micro-lenses over the sensor. I experience it quite noticeably using a 21mm f4 Super-Angulon which, being a non-retrofocus design, has a very deep-set rear section. Also, although to a far lesser extent, with the 7Artisans 50mm f1.1 which has a fairly deep-set rear but, curiously, I have only noticed it when using the M-D Typ-262; it had never been an issue when I used it with my old M9-P. The different parameters of the sensor designs might have something to do with things... Philip. Quote Link to post Share on other sites More sharing options...
Graham (G4FUJ) Posted February 24, 2021 Share #6 Posted February 24, 2021 (edited) 12 hours ago, pippy said: Nice bike! Philip. I was going to write nice Trumpet, but didn't have an answer to the question. There is another thread with a post showing differences in pixel "lens" between M models. I'll see if I can find it - probably in the M9 section. Yep, here you go - scroll down to Adan's post of February 23rd: https://www.l-camera-forum.com/topic/317879-terrible-color-aberrations-with-older-elmarit-21mm/ Edited February 24, 2021 by Graham (G4FUJ) Additional info. 1 Quote Link to post Share on other sites More sharing options...
Graham (G4FUJ) Posted February 24, 2021 Share #7 Posted February 24, 2021 Advertisement (gone after registration) Oh dear, I'm behind the times. Still a nice Trumpet though My very last bike was a Triumph Legend 900. Previous owner was an old boy, whose wife banned him from riding it after he fell off twice in fairly quick succession. Quote Link to post Share on other sites More sharing options...
lct Posted February 24, 2021 Share #8 Posted February 24, 2021 Your pics look rather soft with respect. 20 hours ago, D A V I D said: I forgot to say indeed, the lens was set as Leica 50mm 1.2. I would try a lens profile correcting for such color shifts like 21/2.8 or 21/2.8 asph. This said your pics look rather soft with respect so i would not overrule a possible lens issue. Quote Link to post Share on other sites More sharing options...
BrianS Posted February 24, 2021 Share #9 Posted February 24, 2021 (edited) 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! This is the most extreme case of sunlight bouncing off of metal that I have uploaded. The Sun is just outside of the frame, my v1 Nokton showed flare at this angle. I took the two lenses out for an informal comparison, means I walked around the grounds twice for double the exercise... 50/1.5 Nokton v2 wide-open, on the M9, coded as an Summilux. Multi-coated version. I have not seen the patches of purple that you are showing. Since I have it- this is with the v1 Nokton, wide-open. Edited February 24, 2021 by BrianS Quote Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! This is the most extreme case of sunlight bouncing off of metal that I have uploaded. The Sun is just outside of the frame, my v1 Nokton showed flare at this angle. I took the two lenses out for an informal comparison, means I walked around the grounds twice for double the exercise... 50/1.5 Nokton v2 wide-open, on the M9, coded as an Summilux. Multi-coated version. I have not seen the patches of purple that you are showing. Since I have it- this is with the v1 Nokton, wide-open. ' data-webShareUrl='https://www.l-camera-forum.com/topic/318301-purple-haze/?do=findComment&comment=4147980'>More sharing options...
BrianS Posted February 24, 2021 Share #10 Posted February 24, 2021 (edited) 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! No metal in this shot- but I thought it was a good test for color and contrast. The v2 Nokton 50/1.5, multi-coated version, wide-open on the Leica M9. Do you have the multi-coated or the single-coated version of the lens? Edited February 24, 2021 by BrianS Quote Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! No metal in this shot- but I thought it was a good test for color and contrast. The v2 Nokton 50/1.5, multi-coated version, wide-open on the Leica M9. Do you have the multi-coated or the single-coated version of the lens? ' data-webShareUrl='https://www.l-camera-forum.com/topic/318301-purple-haze/?do=findComment&comment=4147987'>More sharing options...
adan Posted February 24, 2021 Share #11 Posted February 24, 2021 The times I have seen a corner "haze" like that - with almost any lens, and especially in a lower corner (or across the bottom) - it is usually because a left-hand finger has crept slightly around the front of the lens. And shows up as a fuzzy blur in the picture. It has happened to me with every focal length from 15 to 90mm (compact Tele-Elmarit), if I fail to pay attention, and my hand reports "this is a nice comfortable grip". Given the physical shortness of the 50mm Nokton v.II, I would imagine that lens is rather at risk for this happening. Even with the lens hood in place, since it would still be smaller and easier to overhang than the 75 Nokton (and I have managed to do it even with the 75 on occasion - see below). And I don't even have especially large hands. The size, shape, and "fuzziness" of the haze will vary with focal length, of course (more, or less, depth of field and field of view). 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 1 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/318301-purple-haze/?do=findComment&comment=4148017'>More sharing options...
D A V I D Posted March 20, 2021 Author Share #12 Posted March 20, 2021 Quote " The times I have seen a corner "haze" like that - with almost any lens, and especially in a lower corner (or across the bottom) - it is usually because a left-hand finger has crept slightly around the front of the lens. And shows up as a fuzzy blur in the picture." Interesting ! I'll check if that was the case. Totally possible. Thanks for sharing ! David Quote Link to post Share on other sites More sharing options...
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