jamesmd Posted December 22, 2008 Share #1 Posted December 22, 2008 Advertisement (gone after registration) First time I experimented famous green line . is there any way to avoid it , apart from not having a light right on the edge ? I didn't realize on the camera screen Cheers James 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/72043-grrrrr-green-line/?do=findComment&comment=754940'>More sharing options...
Advertisement Posted December 22, 2008 Posted December 22, 2008 Hi jamesmd, Take a look here grrrrr green line. I'm sure you'll find what you were looking for!
jaapv Posted December 22, 2008 Share #2 Posted December 22, 2008 Commiserations. I think the only thing you can do is pray it won't happen in an important shot, or for it to be easily clonable, like this one. Link to post Share on other sites More sharing options...
Shootist Posted December 22, 2008 Share #3 Posted December 22, 2008 No there isn't. Link to post Share on other sites More sharing options...
jamesmd Posted December 22, 2008 Author Share #4 Posted December 22, 2008 I'll try to clone , but I'm not very good at it . james Link to post Share on other sites More sharing options...
SJP Posted December 22, 2008 Share #5 Posted December 22, 2008 It looks like your green line is at an angle with respect to the image boundaries. I thought the green line concerns a row of pixels (or several rows). In that case it should have been horizontal - unless you rotated the picture in PP. Link to post Share on other sites More sharing options...
jamesmd Posted December 22, 2008 Author Share #6 Posted December 22, 2008 Hi SJP , I rotated 1,2 degrees , but the line was the same . it wasn't a hard straight line as I have seen in other pics here on thread or somewhere. do you want to see the original file ? James Link to post Share on other sites More sharing options...
jamesmd Posted December 22, 2008 Author Share #7 Posted December 22, 2008 Advertisement (gone after registration) this is original 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/72043-grrrrr-green-line/?do=findComment&comment=754978'>More sharing options...
fishblimp Posted December 22, 2008 Share #8 Posted December 22, 2008 Question: Did this happen when using an M8 or an M8.2? This happened to me last night with an image that had a strong kitchen light in the frame. I was using an 8.2 with a 21mm lens. Link to post Share on other sites More sharing options...
jamesmd Posted December 22, 2008 Author Share #9 Posted December 22, 2008 hi , M8 , but it happens with both , its something to do with sensor edge , it was explained somewhere in the forum . Cheers James Link to post Share on other sites More sharing options...
Shootist Posted December 22, 2008 Share #10 Posted December 22, 2008 hi , M8 , but it happens with both , its something to do with sensor edge , it was explained somewhere in the forum . Cheers James It's really not just the sensor edge but the way the light hits the short side of the sensor. I've never had it happen at the top or bottom of the frame, IE long side of the sensor. I haven't tried it but I bet it happens less with longer lenses. Longer lenses project the light differently, at less of a steep angle, then shorter lenses. The light is getting under the black edge treatment of the sensor. Link to post Share on other sites More sharing options...
jamesmd Posted December 22, 2008 Author Share #11 Posted December 22, 2008 this was a cron 50 James Link to post Share on other sites More sharing options...
fishblimp Posted December 22, 2008 Share #12 Posted December 22, 2008 and mine was when i was using a 21mm ASPH. Also, the green line on mine was MUCH thicker. I can't upload it at the moment to show, unfortunately Link to post Share on other sites More sharing options...
Shootist Posted December 22, 2008 Share #13 Posted December 22, 2008 this was a cron 50 James When I was speaking about longer lenses I was thinking of 75/90/135. Like I said I haven't tried it with those lenses. Link to post Share on other sites More sharing options...
zlatkob Posted December 22, 2008 Share #14 Posted December 22, 2008 Which light was right at the edge of the frame? Link to post Share on other sites More sharing options...
jamesmd Posted December 22, 2008 Author Share #15 Posted December 22, 2008 I suppose the lamp pole just on the edge . its right on the limit James Link to post Share on other sites More sharing options...
marknorton Posted December 22, 2008 Share #16 Posted December 22, 2008 Did you rotate this image before posting because, to me, the green line doesn't look horizontal... The problem will never occur with a light at the long edge of the frame because of the way the sensor is structured; pairs of rows meeting in the middle. The masked pixels which provide a black reference level are leaking light and corrupting what the sensor thinks of as black on those rows. Link to post Share on other sites More sharing options...
jamesmd Posted December 22, 2008 Author Share #17 Posted December 22, 2008 the 2nd post is raw file with nothing done to it , except jpg conversion . James Link to post Share on other sites More sharing options...
ArtZ Posted December 22, 2008 Share #18 Posted December 22, 2008 I suppose the lamp pole just on the edge . its right on the limit James James, I really don't understand. If the second image you have posted has no cropping, just JPG conversion from DNG, you shouldn't get the green line. I always heard you (can) get a green line when a bright light source is placed just at the border of the frame (or sensor). The street lamp you're talking about is out of the frame. It's also true I never had these green lines with any of my M8s and, maybe, I misunderstood the explanations given on this forum about this phenomenon. PS: All my Leica gear (M8s and Leica lenses) is at Solms... After upgrading the bright lines on both cameras, I checked focus at 0.7m and infinite... everything seemed to be perfect... I was very happy the upgrade... but in Costa Rica I realized that intermediate focus was completely wrong: all pictures taken between 2 and 5 meters (depending on the lenses) @ f<4 were out of focus! Leica asked me to send back all my gear (including lenses)... I hope to get it back before my trip to Spain on the 29th... Grrrr... Otherwise, I would have tried to get my own green line too! I've tried a few times with no success. Cheers mate! Link to post Share on other sites More sharing options...
Shootist Posted December 22, 2008 Share #19 Posted December 22, 2008 James, I really don't understand. If the second image you have posted has no cropping, just JPG conversion from DNG, you shouldn't get the green line. I always heard you (can) get a green line when a bright light source is placed just at the border of the frame (or sensor). The street lamp you're talking about is out of the frame. It's also true I never had these green lines with any of my M8s and, maybe, I misunderstood the explanations given on this forum about this phenomenon. Cheers mate! The green line will occur with the light just at the edge, just inside the edge (spitting the edge) or just outside the edge of the image. Probably if it was slightly farther outside the frame or fully inside the frame this wouldn't happen. Link to post Share on other sites More sharing options...
jamesmd Posted December 22, 2008 Author Share #20 Posted December 22, 2008 Hi Artz , yes , its DNG for sure , perhaps as its a little out its why its not the typical strong line . James Link to post Share on other sites More sharing options...
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