faneuil Posted August 27, 2007 Share #1 Posted August 27, 2007 Advertisement (gone after registration) Worst case scenario: ISO 2500, Noctilux wide open. I pumped up the exposure to show 'stuck' pixels and banding: M8 sensor issues Is this normal from an 'upgraded' M8? Eric Link to post Share on other sites More sharing options...
Advertisement Posted August 27, 2007 Posted August 27, 2007 Hi faneuil, Take a look here is this normal M8 banding?. I'm sure you'll find what you were looking for!
robsteve Posted August 27, 2007 Share #2 Posted August 27, 2007 It looks normal for under exposure at 2500 pushed later in processing. What RAW processor are you using? Link to post Share on other sites More sharing options...
andybarton Posted August 27, 2007 Share #3 Posted August 27, 2007 What were you expecting? Link to post Share on other sites More sharing options...
Guest Walt Posted August 27, 2007 Share #4 Posted August 27, 2007 What were you expecting? He was expecting something better, and something more informative as a response from a forum moderator. Cheers, Walt Link to post Share on other sites More sharing options...
Guest sirvine Posted August 27, 2007 Share #5 Posted August 27, 2007 That red dot to the right side with the line through it looks like the same vertical line being discussed here (http://www.l-camera-forum.com/leica-forum/leica-m8-forum/32246-m8-dead-pixels-dust-other-nasty.html) and elsewhere on this board. Link to post Share on other sites More sharing options...
andybarton Posted August 27, 2007 Share #6 Posted August 27, 2007 He was expecting something better, and something more informative as a response from a forum moderator. Cheers, Walt Thanks, Walt... It seems to be that he may be expecting too much, and that is why I asked. He's underexposed at ISO 2500, then pushed the image in software, and it's displaying noise etc. This is entirely to be expected, IMHO. You wouldn't expect to get an image at all from film. Link to post Share on other sites More sharing options...
Guest guy_mancuso Posted August 27, 2007 Share #7 Posted August 27, 2007 Advertisement (gone after registration) Looks like a 2 stop push. Link to post Share on other sites More sharing options...
M6J Posted August 27, 2007 Share #8 Posted August 27, 2007 He made this test to show 'stuck' pixels and banding, I don't think he's asking about the noise in the pictures. There are definitely 2 stuck pixels. One of them spoils its whole column too. Link to post Share on other sites More sharing options...
faneuil Posted August 27, 2007 Author Share #9 Posted August 27, 2007 Properly exposed but I pushed up histogram POST to show the stuck pixels and vertical stripe! Eric Link to post Share on other sites More sharing options...
faneuil Posted August 27, 2007 Author Share #10 Posted August 27, 2007 thanks to whomever posted the link to another thread. Seems the red dot/ vertical line phenomenon is common and a hardware fault. My camera is already on its way to Leica NJ Eric Link to post Share on other sites More sharing options...
jaapv Posted August 27, 2007 Share #11 Posted August 27, 2007 My car can do 230 kph, and it can turn in a 10 metre radius. If I do both at the same time, it flips over. I must complain to the factory... I cannot but agree with Andy and others. You simply pushed the camera beyaond its technical limits. It may be that Leica, out of courtesy will replace something, but that won't prevent anybody from provoking something similar. Link to post Share on other sites More sharing options...
M6J Posted August 28, 2007 Share #12 Posted August 28, 2007 No Jaap, you are not right. A hardware problem is a hardware problem, no matter how you found it out. Link to post Share on other sites More sharing options...
jaapv Posted August 28, 2007 Share #13 Posted August 28, 2007 A hardware problem is only a hardware problem if it affects the result within the parameters the hardware was intended for. If the machine is pushed beyond the limit, something will give. The only discussion here can be: is the OP "intended use" or not? If so, it should perform within specs, if not, and I agree with Andy this is a "not", as the exposure has to "pumped up"beyond the extreme performance limit for the effect even to show up, there is no problem. Link to post Share on other sites More sharing options...
andybarton Posted August 28, 2007 Share #14 Posted August 28, 2007 Properly exposed but I pushed up histogram POST to show the stuck pixels and vertical stripe! Eric Fair enough, my apologies. If Guy M is right, the night images are being presented at the equivalent of ISO 10,000, so one would expect some degredation of the image in these circumstances. Do the stuck pixels and this thin stripe reveal themselves under "normal" shooting conditions? They don't show at all in the shot taken indoors under more normal light. That said, your camera does also seem to be showing the much more obvious issue which affected the very first units off the line (i.e. the band across the image from a bright source at or just beyond the edge of the frame). Link to post Share on other sites More sharing options...
luigi bertolotti Posted August 28, 2007 Share #15 Posted August 28, 2007 The vertical band, ok, it's rather visible; the isolated "stuck" pixel... well I think I hadn't notice it, and , is it a hardware problem or not, adjusting it is a lot easier than a powder dot on a film... OK, Leica service dep. is here to manage any kind of problem... personally, before having my M8 away, I would prefer to see if the banding shows also in less extreme situations... but this is an opinion of mine, just for I do not like to have my camera serviced unless it gives REAL problems... Link to post Share on other sites More sharing options...
faneuil Posted August 28, 2007 Author Share #16 Posted August 28, 2007 it gets worse -- recheck my link and check the second picture witht he candle: M8 sensor problem This is a major hardware fault. Camera will be in NJ anyday now. Eric Link to post Share on other sites More sharing options...
andybarton Posted August 28, 2007 Share #17 Posted August 28, 2007 That's the issue that was present in the early models. Link to post Share on other sites More sharing options...
jaapv Posted August 28, 2007 Share #18 Posted August 28, 2007 And should have been fixed in the upgrade - the OP says it is an upgraded camera. Link to post Share on other sites More sharing options...
cbretteville Posted August 28, 2007 Share #19 Posted August 28, 2007 The on-edge bright light = streak is the border/black pixel problem. This has not been fixed AFAIK, my M8 has it. - C Link to post Share on other sites More sharing options...
jaapv Posted August 28, 2007 Share #20 Posted August 28, 2007 Wasn't that green and wide? Link to post Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.