911turbojk Posted July 21, 2009 Share #1 Posted July 21, 2009 Advertisement (gone after registration) These were some photos that I took when I was at the AC.MILAN VS GALAXY game last night,,,, most of the photo were great ,, but there are a few photos that had this crazy green bar across the top of the screen especially when the framing involves the HID stadium light on the top portion of the photo. Can anyway tell me what this is ? is it something fixable or this means something is happening to my new M8.2 .... ! HELP ~~~~ (This is the first time I have seen these green bars since I got the camera a week ago) Thanx for all the help in advance. Jack 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/91305-this-is-bad-i-think-on-my-m82-help/?do=findComment&comment=968801'>More sharing options...
Advertisement Posted July 21, 2009 Posted July 21, 2009 Hi 911turbojk, Take a look here This is bad I think.. on my M8.2 .. HELP. I'm sure you'll find what you were looking for!
Guest roey Posted July 21, 2009 Share #2 Posted July 21, 2009 This is a well documented problem that occurs when you have a very strong light source just outside the left or right frame edge. See also: http://www.l-camera-forum.com/leica-forum/digital-forum/18270-green-stripe-berlin.html Link to post Share on other sites More sharing options...
911turbojk Posted July 21, 2009 Author Share #3 Posted July 21, 2009 Roey Thanx for the link man, so should I be sending this back to LEICA to ask them to fix it , or is something that we should worry about ? Jack Link to post Share on other sites More sharing options...
yanidel Posted July 21, 2009 Share #4 Posted July 21, 2009 It happens to my pictures every once in a while (not often though), especially at night when a light source is close to the border. I decided not to worry about it and enjoy the camera for the 99.9% other pictures that come out great. Link to post Share on other sites More sharing options...
garygsandhu Posted July 21, 2009 Share #5 Posted July 21, 2009 unfixable. All M8's do this. Sorry for the news. Enjoy. Link to post Share on other sites More sharing options...
Guest roey Posted July 21, 2009 Share #6 Posted July 21, 2009 It probably doesn't hurt to ask Leica whether they finally have a fix for it -- and let everybody here know if they do. Personally, I have never encountered this problem in 2.5+ years using my M8, but others have. Apparently, moving the camera just a little bit left or right "fixes" the problem, which of course doesn't do you any good if you don't notice it right away. Link to post Share on other sites More sharing options...
mjh Posted July 21, 2009 Share #7 Posted July 21, 2009 Advertisement (gone after registration) Thanx for the link man, so should I be sending this back to LEICA to ask them to fix it , or is something that we should worry about ? They cannot fix it; it is some pecularity of the CCD and attempts to circumvent the issue in firmware have been unsuccessful. It is just something to keep in mind: avoid bright sources of light at or just outside the left or right edges of the image. Link to post Share on other sites More sharing options...
jaapv Posted July 21, 2009 Share #8 Posted July 21, 2009 Regard it in the same category as flare. Everybody knows that shooting straight into sunlight will, in certain circumstances, produce flare patches, and allows for this. So just be aware in that situation and try to take several, differently framed shots. Link to post Share on other sites More sharing options...
t024484 Posted July 21, 2009 Share #9 Posted July 21, 2009 They cannot fix it; it is some pecularity of the CCD and attempts to circumvent the issue in firmware have been unsuccessful. It is just something to keep in mind: avoid bright sources of light at or just outside the left or right edges of the image. Hi Mchael, How do you know that "attempts were made in firmware to ...". This is no common knowledge. Are you in any way connected to Leica? Hans Link to post Share on other sites More sharing options...
Shootist Posted July 21, 2009 Share #10 Posted July 21, 2009 Roey Thanx for the link man, so should I be sending this back to LEICA to ask them to fix it , or is something that we should worry about ? Jack It is a know problem that can NOT be fixed. Just stop putting bright lights at the edges of the images you take. Link to post Share on other sites More sharing options...
gwelland Posted July 21, 2009 Share #11 Posted July 21, 2009 Hi Mchael,How do you know that "attempts were made in firmware to ...". This is no common knowledge. Are you in any way connected to Leica? Hans Hans, Let's just say we'll take Michael's word for it (and many other tech issues). He may not be directly connected to Leica but I would suggest you have a read of LFI some time where I think you'll find Michael's credentials more than credible. Link to post Share on other sites More sharing options...
bybrett Posted July 21, 2009 Share #12 Posted July 21, 2009 The only "fix" is to cover the outer vertical edges of the sensor which would result in a "shadow" at both ends. Link to post Share on other sites More sharing options...
dcuthbert Posted July 21, 2009 Share #13 Posted July 21, 2009 It is a know problem that can NOT be fixed. Just stop putting bright lights at the edges of the images you take. Sound advice there. I have to admit, you lot are the most forgiving of customers. Imagine this same problem existed on a D3 or 1DS.. Oh and it's not a bug, it's a "feature" Link to post Share on other sites More sharing options...
delander † Posted July 21, 2009 Share #14 Posted July 21, 2009 I think we are a bit forgiving, we all like Leica, want them to succeed and understand the enormous effort they had to make to produce the M8. Jeff Link to post Share on other sites More sharing options...
rebelfocus Posted July 21, 2009 Share #15 Posted July 21, 2009 I know of other digital cameras that have these kind of problems with lights to the edge of the frame. Even the Canon 5D Mk II, a relatively modern sensor design, will exhibit similar artifacts with bright lights just outside the frame in dark scenes. Link to post Share on other sites More sharing options...
marknorton Posted July 21, 2009 Share #16 Posted July 21, 2009 This problem surfaced soon after the M8 was available and I wrote to Stefan Daniel proposing a firmware approach to solving the problem. It seems the bright light is leaking into the reference pixels at each end of each row which are masked off and assumed to be "black". My suggestion was to recognise the wacky reference pixels and take a second frame behind a closed shutter and use the new black reference pixels to "repair" to corrupted ones on the original capture. Whether they tried this I do not know but it's certainly possible it proved impossible to fix the image sufficiently well. It boils down to a design limitation (I hesitate from calling it a flaw) in the sensor. Link to post Share on other sites More sharing options...
Shootist Posted July 21, 2009 Share #17 Posted July 21, 2009 I know of other digital cameras that have these kind of problems with lights to the edge of the frame. Even the Canon 5D Mk II, a relatively modern sensor design, will exhibit similar artifacts with bright lights just outside the frame in dark scenes. That is interesting to know. Link to post Share on other sites More sharing options...
AlanG Posted July 21, 2009 Share #18 Posted July 21, 2009 I know of other digital cameras that have these kind of problems with lights to the edge of the frame. Even the Canon 5D Mk II, a relatively modern sensor design, will exhibit similar artifacts with bright lights just outside the frame in dark scenes. Please show me. Link to post Share on other sites More sharing options...
Nicoleica Posted July 21, 2009 Share #19 Posted July 21, 2009 I would imagine that it is more pronounced on an M8 due to the extreme angles that light hits the sensor edges compared to most DSLRs. With wider, or other lenses where the rear element to sensor distance is very small, I would think that adequate masking could be quite problematic. However, having said that, it's still not good, and I'm sure that it could be addressed by Leica if they had enough incentive to do so. Link to post Share on other sites More sharing options...
zlatkob Posted July 21, 2009 Share #20 Posted July 21, 2009 I know of other digital cameras that have these kind of problems with lights to the edge of the frame. Even the Canon 5D Mk II, a relatively modern sensor design, will exhibit similar artifacts with bright lights just outside the frame in dark scenes. I have never seen any similar artifacts from bright lights when using the Canon 5D II. Flare is a different thing and can be created with any camera. Flare may even be desirable in some photos. Link to post Share on other sites More sharing options...
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