fredbonhomme Posted November 11, 2006 Share #1 Posted November 11, 2006 Advertisement (gone after registration) I've found maybe a new problem with the M8. I've noticed vertical red or magenta line on some pictures when I view them at 100%. Pascal Méheut told me that it was maybe a problem of raw conversion but I can't remove them even if I use the "pattern noise suppression" of capture one... Here some crop (open your eyes because it's quite difficult to notice at first sight) So look closely at your own picture to see if you also have this problem... 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/8999-m8-red-lining-maybe-a-new-problem/?do=findComment&comment=90743'>More sharing options...
Advertisement Posted November 11, 2006 Posted November 11, 2006 Hi fredbonhomme, Take a look here M8 : red lining. Maybe a new problem ?. I'm sure you'll find what you were looking for!
gogopix Posted November 11, 2006 Share #2 Posted November 11, 2006 look like jpg I assume not, and it is also in the raw? I am 20/20 but sorry you need to help me, I just cant see it also, print out remeber screens are 72-96 DPI not 240 to 300 of print so features look more 'linear' than they really are, and due to the bayer matrix there issome inherent banding at 100% in ALL images. Link to post Share on other sites More sharing options...
rfleica Posted November 11, 2006 Share #3 Posted November 11, 2006 yse, i can see them. but are they visible on your prints? Link to post Share on other sites More sharing options...
Jamie Roberts Posted November 11, 2006 Share #4 Posted November 11, 2006 Um, I'm with Viktor. Is your monitor working properly? You don't have a Sony, do you? Anyway, these are not WB correctly, and you're using that darned overly magenta C1 M8 profile. Yikes on the skin tones. But I don't see anything like a vertical red line. Not there at all, that I can see. Can you please point it out? Link to post Share on other sites More sharing options...
fredbonhomme Posted November 11, 2006 Author Share #5 Posted November 11, 2006 These are JPEG converted from DNG with capture one. On the first just look under the nose or on the thumb. On the second look on the forehead or cheek. On the third, just look on the upper right... Link to post Share on other sites More sharing options...
JHAG Posted November 11, 2006 Share #6 Posted November 11, 2006 First picture I can three short vertical red lines on the index finger Difficult to say what is this though Link to post Share on other sites More sharing options...
plasticman Posted November 11, 2006 Share #7 Posted November 11, 2006 Advertisement (gone after registration) i didn't really want to take part in any more threads today, because i feel that my negativity is getting out-of-hand - but i was watching this one because i simply KNEW someone would jump in and say that 'they can't see it' or 'it must be your monitor'. Sitting in front of this Apple color-calibrated display i can CLEARLY see those red lines - particularly in the fingertips of the first picture. In addition, fred clearly states that it may be "a problem of raw conversion" - so it obviously isn't simply a jpeg artifact. Good grief. edit: wow - there's a few people online today i see... :-) Link to post Share on other sites More sharing options...
fredbonhomme Posted November 11, 2006 Author Share #8 Posted November 11, 2006 And yes I'm using the C1 M8 profile Wich one is better ? PS : my screen is a samsung 213T and I've never seen lines like these with all my previews cameras (D70...) Link to post Share on other sites More sharing options...
Jamie Roberts Posted November 11, 2006 Share #9 Posted November 11, 2006 First pictureI can three short vertical red lines on the index finger Difficult to say what is this though I can't see any of the artifacts mentioned. Please re-post with a circle around them. My monitor? EIZO CG 19 profiled by Eye One Spectro and GM PM5. I don't think these would print out, guys... Link to post Share on other sites More sharing options...
TimF Posted November 11, 2006 Share #10 Posted November 11, 2006 I can see them.........just, but only after it was pointed out where they are. As has already been stated, could you see them on a print? (and without using a magnifying glass please! ) If so, then its a problem, if not, please stop pixel peeping. Link to post Share on other sites More sharing options...
plasticman Posted November 11, 2006 Share #11 Posted November 11, 2006 I can't see any of the artifacts mentioned. Please re-post with a circle around them. My monitor? EIZO CG 19 profiled by Eye One Spectro and GM PM5. Difficult to highlight because this inherently obscures the red lines - but i chose 2 of them (there are many more on the fingers). "please stop pixel peeping." fyi - some people (including some professionals) use their cameras for online presentation (including product shots that occassionally need to be presented at 100%). NOT okay in a pro camera. 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/8999-m8-red-lining-maybe-a-new-problem/?do=findComment&comment=90769'>More sharing options...
marknorton Posted November 11, 2006 Share #12 Posted November 11, 2006 I can see blotches on the sky shot, don't look like green blobs, more water marks on the sensor. Link to post Share on other sites More sharing options...
JHAG Posted November 11, 2006 Share #13 Posted November 11, 2006 There. 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/8999-m8-red-lining-maybe-a-new-problem/?do=findComment&comment=90774'>More sharing options...
Vivek Iyer Posted November 11, 2006 Share #14 Posted November 11, 2006 Yes, in adiition to the stripes, as Mark points out, your sensor needs to be cleaned of the blotches. Link to post Share on other sites More sharing options...
fredbonhomme Posted November 11, 2006 Author Share #15 Posted November 11, 2006 Sorry but I haven't yet a "photo quality" printer and my lab was closed today (November 11 is holiday in France). So I can't tell if it will be visible on a print... But I think that yes it would be visible on a big print (A3 or more...). And I repeat that I've never seen anything like this before... so sounds like a problem... Link to post Share on other sites More sharing options...
Guest stevenrk Posted November 11, 2006 Share #16 Posted November 11, 2006 I've found maybe a new problem with the M8. I've noticed vertical red or magenta line on some pictures By the way, the accentuated red blotchy quality of the man's face in your photograph is apparently another consequence of the IR problem --- the IR accentuates blood and blood vessels (red) near the surface. In many ways even more significant a problem than the other results of the IR sensitivity, at least if you are planning to use the M8 to photograph people. "And it causes human skin to appear "blotchy". Areas with less subsurface blood appear unusually light, areas with increased subsurface blood appear as darker blotches. (Such irregularities in blood concentration can be due to circulation problems, or to quite normal physiological reactions that constrict or dialate capillaries). There's also a tendency for surface veins to be unusually prominent, especially in fair haired people." Here's the link for the quote above and a full discussion of the effect of IR sensitivity on various colors, including the now infamous black: Comments on the Leica statement...: Leica Talk Forum: Digital Photography Review Steven Link to post Share on other sites More sharing options...
fredbonhomme Posted November 11, 2006 Author Share #17 Posted November 11, 2006 Yes, even if that's not the point here, I've also noticed that my sensor need to be cleaned. And that's also the first time I have to clean a sensor, and more on a camera that is only few days old (I have never had any blotch on my previous N...) Link to post Share on other sites More sharing options...
fuchs Posted November 11, 2006 Share #18 Posted November 11, 2006 Hi Frédéric, at what ISO were these pictures shot? Did you find these lines at different ISOs, were they more or less evident? Cheers Link to post Share on other sites More sharing options...
gogopix Posted November 11, 2006 Share #19 Posted November 11, 2006 well, the IR bloodvessel stuff may make this an ideal dematology camera. anyway, let's be careful. Here is a Contax P45 shot. Is thepriest evidencing a camera problem? note other complexions, look fine to me 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/8999-m8-red-lining-maybe-a-new-problem/?do=findComment&comment=90803'>More sharing options...
fredbonhomme Posted November 11, 2006 Author Share #20 Posted November 11, 2006 Yes this happens at different iso... Link to post Share on other sites More sharing options...
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