Elliott J Posted September 29, 2009 Share #1 Posted September 29, 2009 Advertisement (gone after registration) Hi, Just curious if anyone has experienced the strange green stripe that the M8 makes if there is a light at the edge of the sensor with their M9. I had forgotten about this until I shot a portrait this afternoon with my M8 and the fun green stripe was there - caused by a light at the edge of the frame. Don't remember anyone commenting on this - hope it has been fixed??? Thanks! ej Link to post Share on other sites More sharing options...
Advertisement Posted September 29, 2009 Posted September 29, 2009 Hi Elliott J, Take a look here M9 Green stripe.... I'm sure you'll find what you were looking for!
Riccis Posted September 29, 2009 Share #2 Posted September 29, 2009 Eliott: While even on the M8/M8.2 I only saw the green stripe a handful of times, I believe this is no longer an issue with the M9 as I've tried my hardest to reproduce it while working under the most extreme lighting conditions that no doubt would have made it happen in the previous model. Cheers, Link to post Share on other sites More sharing options...
luigi bertolotti Posted September 29, 2009 Share #3 Posted September 29, 2009 It happens only in the conditions you quote (strong light at an edge) and not always... an issue, I think, will never be fixed owing to its rare showing : for test, I verified that very small movements can make it appear and disappear... probably it has to do with some specific "blinded" pixel in the M8 sensor map. Link to post Share on other sites More sharing options...
jonoslack Posted September 29, 2009 Share #4 Posted September 29, 2009 Hi, Just curious if anyone has experienced the strange green stripe that the M8 makes if there is a light at the edge of the sensor with their M9. I had forgotten about this until I shot a portrait this afternoon with my M8 and the fun green stripe was there - caused by a light at the edge of the frame. Don't remember anyone commenting on this - hope it has been fixed??? Thanks! ej Hi Elliott I think that it is still theoretically possible. But I've not managed to recreate it (and I've tried). In some 6000 shots I've not seen it once. Link to post Share on other sites More sharing options...
scott kirkpatrick Posted September 29, 2009 Share #5 Posted September 29, 2009 Just as a side comment, I managed to produce five or six green stripes in a single hour's shooting with my M8, without using an artificial setup. I was in a slot canyon (Antelope Canyon, in fact) where all the light came from a narrow strip in the sky. Shooting up with a 21mm lens, I could be sure of having bright light at the edges of the frame. Later I tried to recreate the effect by taking pictures of a long flourescent lightbulb. Not only was that pretty boring, there were no green stripes. But from the evidence that none of the testers so far is seeing it, and they know where to look, I think that Kodak killed that bug. scott Link to post Share on other sites More sharing options...
ho_co Posted September 29, 2009 Share #6 Posted September 29, 2009 Elliott--I agree with Scott: Since: 1) Leica was aware of the green stripe early, understood it and said it couldn't be corrected on the M8; and 2) the M9 uses a different sensor; I am sure it was a major concern in the sensor design and seriously doubt that it will appear on the M9. I'm glad you asked and await its first discovery. Link to post Share on other sites More sharing options...
Elliott J Posted September 30, 2009 Author Share #7 Posted September 30, 2009 Advertisement (gone after registration) Thank you for your comments. Another concern that came up as a result of loosing 20% of my images on this shoot because of the green stripe with the M8. Didn't want to add another issue to the M9... Link to post Share on other sites More sharing options...
ho_co Posted September 30, 2009 Share #8 Posted September 30, 2009 Elliott-- I just checked the M9 FAQ, and there's no green stripe warning. I'm sure it's one of the first things Leica had Kodak fix with the new sensor, but who am I? Why don't you raise the question with Leica Technical if you're in North America, or Leica Customer Service if you're elsewhere? And then post the response here: We'd all like a guaranteed response so we can sue if it happens. Link to post Share on other sites More sharing options...
adan Posted October 1, 2009 Share #9 Posted October 1, 2009 No green stripes - first thing I tested - results here: http://www.l-camera-forum.com/leica-forum/leica-m9-forum/98128-m9-report-salt-lake-city.html Link to post Share on other sites More sharing options...
okram Posted October 2, 2009 Share #10 Posted October 2, 2009 Yes but pixel bleeding seems to still be there...is it on your picture, just under the sun? I love to have a sun in the shot, and this really annoys me with M8. Link to post Share on other sites More sharing options...
okram Posted October 3, 2009 Share #11 Posted October 3, 2009 Can anybody confirm this? Is there "pixel bleeding" on M9 like on M8? M Link to post Share on other sites More sharing options...
wattsy Posted June 23, 2010 Share #12 Posted June 23, 2010 I am sure it was a major concern in the sensor design and seriously doubt that it will appear on the M9. M9 + green stripe. Clearly not totally eradicated. Link to post Share on other sites More sharing options...
jaapv Posted June 23, 2010 Share #13 Posted June 23, 2010 Hmm- those artifacts were indeed reported some time ago. I don't recall any since the new firmware. Maybe it had to do with the SD writing problems we had initially. Link to post Share on other sites More sharing options...
wattsy Posted June 23, 2010 Share #14 Posted June 23, 2010 Hmm- those artifacts were indeed reported some time ago. I don't recall any since the new firmware. Maybe it had to do with the SD writing problems we had initially. Latest firmware. Nothing to do with the SD card - just a classic Leica green band extending from where the sun is in the frame. It's not a big deal but it is clearly a problem that hasn't entirely gone away. No doubt you'll next suggest user error, low battery charge or some other personal voodoo. Link to post Share on other sites More sharing options...
jaapv Posted June 23, 2010 Share #15 Posted June 23, 2010 Possibly The original one was continous, also in overexposed areas.. Link to post Share on other sites More sharing options...
Jamie Roberts Posted June 23, 2010 Share #16 Posted June 23, 2010 Latest firmware. Nothing to do with the SD card - just a classic Leica green band extending from where the sun is in the frame. It's not a big deal but it is clearly a problem that hasn't entirely gone away. No doubt you'll next suggest user error, low battery charge or some other personal voodoo. Well, Jaap won't do this, but I will Ian Have you talked with Leica about this // sent them the shot? I haven't been able to reproduce anything like that with the M9. In other words, I don't think it's classic at all for the M9... and I hope that problem is dead and gone. Also, can you do this at will with your M9 (the way we could with the M8)? I'd honestly be pretty surprised if you can, and if you can, I don't think you can rule out the write bugs the camera has with certain classes of SD cards right now. Having said all that, I only saw this on my M8 a handful of times over 3 years, but it depends on how you're shooting. With the M9, I've been shooting with the sun in the frame, on the frame, in flare-inducing conditions (one of the joys of shooting Leica glass) and no green stripe... Link to post Share on other sites More sharing options...
bybrett Posted June 23, 2010 Share #17 Posted June 23, 2010 Never seen or heard of the green stripe we know from M8 coming into M9. The image above isn't the same thing it looks like a write problem with bleed. It just happens to be greenish. Link to post Share on other sites More sharing options...
wattsy Posted June 23, 2010 Share #18 Posted June 23, 2010 Never seen or heard of the green stripe we know from M8 coming into M9. The image above isn't the same thing it looks like a write problem with bleed. It just happens to be greenish. Well now you've heard about it - and can see it. Here's the sequence of shots showing where the sun is in the frame. It's got nothing to do with card writing. The first in the sequence also features a slightly less obvious green stripe. Link to post Share on other sites More sharing options...
wattsy Posted June 23, 2010 Share #19 Posted June 23, 2010 Have you talked with Leica about this // sent them the shot? I haven't been able to reproduce anything like that with the M9. In other words, I don't think it's classic at all for the M9... and I hope that problem is dead and gone. I haven't talked to Leica about it and won't unless the phenomenon occurs again. It happened very rarely when I used the M8 and I'd be surprised if I see the problem again soon. Link to post Share on other sites More sharing options...
jaapv Posted June 23, 2010 Share #20 Posted June 23, 2010 It is indeed different from an SD fault - it is a sensor phenomen. What I cannot understand - the green stripe shows itself when the highlight is on the edge of the frame, not inside the frame like in these examples. There is of course a massive overload, which suggests the anti-blooming gates (which are effective up to a factor 1000 iirc) simply being unable to cope. Looking straight into the sun can burn out your retina as well, so why shouldn't a sensor be affected? To be convinced this is the same thing as the M8 we we need to see a shot with a stage light on the edge or similar - that is where the M8 showed the green stripe. Link to post Share on other sites More sharing options...
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