castelletta Posted April 3, 2007 Share #1 Posted April 3, 2007 Advertisement (gone after registration) Is it normal a behaviour like this? Please notice the strange yellow band above the tungsten light. Both pictures were taken with a 35mm Summicron at 160 ISO. It's all normal for the M8 or is it something wrong? 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/20534-surprising-shots-with-the-new-m8/?do=findComment&comment=219511'>More sharing options...
Advertisement Posted April 3, 2007 Posted April 3, 2007 Hi castelletta, Take a look here Surprising shots with the new M8. I'm sure you'll find what you were looking for!
de dirk Posted April 3, 2007 Share #2 Posted April 3, 2007 i am not sure, but i think it is a beginning of the green stripe, witch occurs when the image is partialy overexposed (see the thead "green stripe in berlin"":o Link to post Share on other sites More sharing options...
ho_co Posted April 4, 2007 Share #3 Posted April 4, 2007 Roberto-- What part of the frame is this? What was the camera orientation? This looks to me like a case of 'banding,' not uncommon with digital cameras when there is a gross overexposure. If that's the case, the lamp is simply flooding its pixels with more photons than they can hold, and they are spilling over into their neighbor pixels. Then the overflow is carried down the row of pixels to the edge of the frame. Could also be a case of the stripe that has been present so far in each iteration of the M8 firmware and which is expected to be corrected in the next update. Doesn't look to me like anything new, but information on the orientation and location of the stripe would straighten that out. Just my opinion. Others will likely differ. --HC Link to post Share on other sites More sharing options...
erl Posted April 4, 2007 Share #4 Posted April 4, 2007 Robert, I think you will find that the phenomena you are experiencing is 'normal'. I have seen it reported (somewhere!) that other digital cameras do this as well. It occurs when a strong light source appears just at the edge of the frame. I have had several occurence myself, see below. It is comparable to the flare I used to get in same situations with film cameras, except that that flare was worse when it happened. 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 occured last Sunday down the beach. Just a grab shot so I didn't take enough care to avoid the sun. This was a 'sort of' hip shot from the floor, again not accurate framing, hence the inclusion of part of the light source. I don't believe there is anything to be done about it other than avoid "edge of frame" light sources. Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! This occured last Sunday down the beach. Just a grab shot so I didn't take enough care to avoid the sun. This was a 'sort of' hip shot from the floor, again not accurate framing, hence the inclusion of part of the light source. I don't believe there is anything to be done about it other than avoid "edge of frame" light sources. ' data-webShareUrl='https://www.l-camera-forum.com/topic/20534-surprising-shots-with-the-new-m8/?do=findComment&comment=219685'>More sharing options...
adan Posted April 4, 2007 Share #5 Posted April 4, 2007 Roberto: I don't know what your effect is. Usually banding, once it starts, runs all the way to the edge of the frame (as in Erl's samples, which show the classic bright-light-on-the-sensor-edge green stripe). Whereas yours fade in, and then out again over a fairly small distance. Are your posts the full image? If not, can you post a reduced full frame so we get an idea of where this occurs and in which direction? Link to post Share on other sites More sharing options...
bayerische Posted April 4, 2007 Share #6 Posted April 4, 2007 Robert, It is comparable to the flare I used to get in same situations with film cameras, except that that flare was worse when it happened. [ATTACH]32153[/ATTACH] I can't imagine a flare being worse than that Link to post Share on other sites More sharing options...
castelletta Posted April 4, 2007 Author Share #7 Posted April 4, 2007 Advertisement (gone after registration) This was the original file (a test shot) and that the orientation of the banding. 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/20534-surprising-shots-with-the-new-m8/?do=findComment&comment=219780'>More sharing options...
carstenw Posted April 4, 2007 Share #8 Posted April 4, 2007 Ah okay, it is the same banding as Erl has shown, just much milder. I presume Leica is working on a fix for this one, because they are certainly aware of it. It doesn't happen very often, even with lights around. Link to post Share on other sites More sharing options...
castelletta Posted April 4, 2007 Author Share #9 Posted April 4, 2007 Ok, I would like to know if my banding is one that needs harware fix like those found in the first units of the M8 (then recalled and repaired by Leica) or a "normal" banding that potentially affects all the M8 cameras. Link to post Share on other sites More sharing options...
cbretteville Posted April 4, 2007 Share #10 Posted April 4, 2007 This issue is very easy to predict, just place a reasonably bright light source at the edge of the frame and shoot. Don't even think you have to be at higher ISOs. I shot a frame to test for this the first day I had the camera and found it. I had a 25W light bulb (no lamp shade) on the edge of the frame and that was all it took, 'nice' bright green stripe. Link to post Share on other sites More sharing options...
johnll Posted April 4, 2007 Share #11 Posted April 4, 2007 I thought this issue had been resolved. Link to post Share on other sites More sharing options...
Guest stnami Posted April 4, 2007 Share #12 Posted April 4, 2007 ............guess you thought wrong Link to post Share on other sites More sharing options...
erl Posted April 4, 2007 Share #13 Posted April 4, 2007 I can't imagine a flare being worse than that Andreas, I guess I was trying to indicate that the flare I think we are all accustomed to in analog situations is pretty hard to 'fix', either in the darkroom or on the computer. Whereas the admittedly ugly stripe in the digital case is relatively easily cloned out. I guess that is the way I am measuring 'worse'. Link to post Share on other sites More sharing options...
haika Posted April 4, 2007 Share #14 Posted April 4, 2007 I don't believe there is anything to be done about it other than avoid "edge of frame" light sources. erl, i got a similar image in my last shoot, although my streak is magenta. it happened at a candle-light portrait, when the candle got cut off at the bottom edge of the frame. and like in your images, the light streak ends in the center of the image. none of my other digital cameras have shown this, in many thousands of shots. not the early coolpix 950, not the digilux 2, not the d70, and not the d2x. so, why does the band not go through all of the image, if it is a "normal" light streak similar to film flare? i suspect it must have something to do with the two part sensor. one half would get the light streak, the other wouldn't, as the light source is not included in this half. or could it be a sign of mis-calibration between the two sensors? at any rate, i will consult leica tomorrow. we can take a wild guess: a) will they recommend i send my camera back for service or exchange, or will they suggest to wait for the new software update, or c) will they say: learn how to live with it? (fyi, my money is on a.) unwandelbar, günter Link to post Share on other sites More sharing options...
Guest sirvine Posted April 4, 2007 Share #15 Posted April 4, 2007 I think I win the worst green stripe exposure--the entire right half of the sensor went green on one of my shots the other day. Link to post Share on other sites More sharing options...
haika Posted April 4, 2007 Share #16 Posted April 4, 2007 here's my pic. shot by a fellow photographer. we were discussing back-focus issues with fast lenses; this one is summilux 75 1/20@1.4 handheld; iso 320. he got a slice of a candle on the bottom of the image. günter 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/20534-surprising-shots-with-the-new-m8/?do=findComment&comment=220325'>More sharing options...
haika Posted April 5, 2007 Share #17 Posted April 5, 2007 got an answer from leica service: they try to find a firmware fix for it; it was explicitly stated the camera does not have to be sent back to solms. unwandelbar, günter Link to post Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.