Justalex Posted February 19, 2017 Share #1 Posted February 19, 2017 Advertisement (gone after registration) I was wondering if anyone else was experiencing the following problems with their Leica S. Flare I've noticed what appears to be flare on the bottom right hand side of my images. i took a blank frame and sure enough there is flare. I've had a look inside the camera and can't work out where it's coming from. Any suggestions? Color Artefacts I've also noticed colour artefacts in most of my images. I placed a number of images in photoshop layers and noticed they always occur in the same places. This is not simply caused by high frequencies as they only occur in the places marked by the guides in the attached image. They do however occur at the boundaries of contrast or color. Any suggestions? Thanks Justin 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/269566-leica-s-image-problems/?do=findComment&comment=3216358'>More sharing options...
Advertisement Posted February 19, 2017 Posted February 19, 2017 Hi Justalex, Take a look here Leica S Image Problems. I'm sure you'll find what you were looking for!
Joakim Posted February 19, 2017 Share #2 Posted February 19, 2017 I am no expert but one thing you might want to rule out directly, if you haven't already, is if it's a faulty memory card causing this. Have you tried with different cards? Link to post Share on other sites More sharing options...
jip Posted February 19, 2017 Share #3 Posted February 19, 2017 I think for the artefacts your sensor needs 'mapping' Leica can do this for you. The Flare I don't know exactly, but Leica once replaced my bayonet (I didn't know why) but they said there was too much room between the lens and the flange which made light leak in? Link to post Share on other sites More sharing options...
albireo_double Posted February 19, 2017 Share #4 Posted February 19, 2017 No idea what's causing the flare but you may need to get the sensor remapped regarding the cyan lines. I had something similar with my S2; I think it was dead pixels. Leica fixed this for me (camera went back to factory). Later, I had a thin horizontal line in high ISO images taken using live view with my S007; this was fixed through a special bit of firmware that I got by email from Leica. Which Leica S is this (S006 or S007)? You may want to contact Leica directly (there is a guy called Thomas Schmidt who may be able to help you, his email is name.surname@leica-camera.com). Link to post Share on other sites More sharing options...
albertknappmd Posted February 19, 2017 Share #5 Posted February 19, 2017 Where you using a filter per chance? That can be an issue... If not, then I would simply end it back with these incriminating photos. They will easily fix both issues. Albert Link to post Share on other sites More sharing options...
Justalex Posted February 19, 2017 Author Share #6 Posted February 19, 2017 Thanks for the posts. I'm using a 007 and shoot tethered to a laptop so not a card or filter problem. The sensor remapping sounds more serious. I can understand remapping a few pixels won't cause any image degradation, but how about entire rows? As you can see from the attachment there are at least 14 rows that present a problem. Link to post Share on other sites More sharing options...
erlingmm Posted February 19, 2017 Share #7 Posted February 19, 2017 Advertisement (gone after registration) Thanks for the posts. I'm using a 007 and shoot tethered to a laptop so not a card or filter problem. The sensor remapping sounds more serious. I can understand remapping a few pixels won't cause any image degradation, but how about entire rows? As you can see from the attachment there are at least 14 rows that present a problem. I am not an expert, but I think a single dead pixel can cause a whole row to fault, it will be corrected by remapping. Regarding flare - could you try to test with tape or a dark cloth around the lens mount, just to test for light leakage? I have heard this has been an issue with some M cameras, but it should be easy to test/rule out. Link to post Share on other sites More sharing options...
FlashGordonPhotography Posted February 19, 2017 Share #8 Posted February 19, 2017 Looks more like a sensor replacement than mapping to me.... As for the flare. cover the lens cap with a cloth. then another shot with it wrapped around the lens mount. try different lenses as well. If it's from the mount that can be fixed with the sensor if it's from he front of the camera you'll need to see if it's the lens that has an issue or just a ligt placement issue. Gordon Link to post Share on other sites More sharing options...
hoppyman Posted February 19, 2017 Share #9 Posted February 19, 2017 Just a couple more thoughts on this for you. I can't see very clearly from your posted images. Have you checked that the sensor cover glass is not smeared? Are the blue lines in your samples there guide lines used in Photoshop and you are showing screen captures?? I am not expert on the image processing in the camera, but I thought that the columns artefacts did not happen with the current CMOS sensor processing (different to the way the CCD worked?? Link to post Share on other sites More sharing options...
erlingmm Posted February 20, 2017 Share #10 Posted February 20, 2017 Can we get all the parameters on the table here: Camera, firmware version, lens(es), PP SW - Lightroom (version)? Any sensor cleaning attempted - by whom? I also wondered whether the blue lines were added for information, or is right out of camera (I assumed the first, but may be wrong) Just trying to isolate the problem to give better advice. Link to post Share on other sites More sharing options...
Justalex Posted February 20, 2017 Author Share #11 Posted February 20, 2017 Colour Artefacts Yes... sorry. I didn't make that very clear... The image was a screen shot from photoshop and the blue lines are guides showing where the rows of colour artefacts appear. I've not scanned the images thoroughly but I've counted 14 rows where they appear regularly. Flare With regards to the flare I think I've discovered the cause of the problem. If this link is anything to go by, it appears to be caused by internal reflections from the AF sensor unit. http://www.imaging-resource.com/news/2014/12/24/nikon-d750-flare-problems-heres-why-and-what-to-do-about-them-its-not-lens I have the 24, 30, 30-90 70 and 120mm lenses. The problem exists on almost all pics taken with the 120 regardless of where the light source is in the frame. The 30-90 to a lesser degree than the 120mm and on the 24mm when there is a bright light source in the edge of frame. Here it is on the 24mm from a job I shot today. Interestingly it appears on the sides of the frame and not the top and bottom. Can anyone else confirm they can reproduce the problem? If so, how do we get Leica to acknowledge the fault and offer a solution? 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/269566-leica-s-image-problems/?do=findComment&comment=3217039'>More sharing options...
erlingmm Posted February 20, 2017 Share #12 Posted February 20, 2017 I think the example picture you have chosen is extremely demanding: High frequency parallel lines slightly skewed from vertical, and large magnification (how big?). I suspect that any sensor eventually will reach a limit where artifacts may show up in this kind of structure. Do you see similar artifacts in pictures that are less demanding, "softer" for lack of a better term? Would it be possible for you to check different RAW converters (Capture One?) to see if the problem persists (assuming you shoot RAW in the first place)? Link to post Share on other sites More sharing options...
Justalex Posted February 20, 2017 Author Share #13 Posted February 20, 2017 That's what I initially thought as it seems to occur on boundaries of colour and contrast. However it only occurs within the areas marked with the blue guides. If it was simply an issue of high frequency it would occur everywhere on the image and the example I've shown would be completely covered with colour artefacts. It might be a combination of frequency and rows of faulty pixels where the camera has to interpolate data for faulty pixels from pixels farther than it would normally have to sample. Link to post Share on other sites More sharing options...
erlingmm Posted February 20, 2017 Share #14 Posted February 20, 2017 Sounds plausible. I discussed this briefly with a photography friend of mine who is infinitely more competent on these issues than I am. I understand that it is normal to have some columns that are defect, but this is mapped out in production. With the number of errors here, he thinks you should demand a new sensor. Leica has replaced sensors with fewer errors than this on M cameras. Has this deteriorated over time, or is it just something you have noticed after working in more detail with the camera? Did you buy the camera new from a competent dealer who supports you? Link to post Share on other sites More sharing options...
Justalex Posted February 20, 2017 Author Share #15 Posted February 20, 2017 I've noticed it for quite some time but I was just retouching it out whenever I found it. After a few bigs jobs where I did noting but clone-clone-clone-clone-clone-clone in photoshop I realised it wasn't random but usually in the same parts of the image. I put a few images into layers and sure enough they were in the same spot. Mostly in the areas I've indicated with the guides in the screen shot earlier. I've had the camera for 14 months and I have files with the artefacts from at least 4 months ago. When I've got some time I'll need to go backwards through my images to see when it first started. Link to post Share on other sites More sharing options...
Justalex Posted February 20, 2017 Author Share #16 Posted February 20, 2017 Well I've just received an email from Leica... Flare Apparently this might be caused by paint that's fallen off inside the mirror box, possibly from the mirror. It will need a repaint. I can't verify this at the moment as I'm waiting for my battery to recharge enough for me to raise the mirror and look inside. Colour Artefacts Apparently a faulty sensor. Link to post Share on other sites More sharing options...
Justalex Posted February 21, 2017 Author Share #17 Posted February 21, 2017 So I've managed to have a look inside the mirror box and there doesn't appear to have been any loss of paint as it's all flock line. What does appear to be the cause is the mirror mechanism on the left hand side. As you can see from the attached pic, the mirror mechanism on the left hand side is larger than on the right hand side. The flash from the iPhone appears to be bouncing off something inside there and onto the sensor. You can see two vertical lines on the top left hand side which appear to be reflections from something inside the hole. Link to post Share on other sites More sharing options...
xiaubauu2009 Posted February 24, 2017 Share #18 Posted February 24, 2017 Does this classified as Bashing the good name of Leica? Sorry, I just have to do it. Link to post Share on other sites More sharing options...
Justalex Posted February 24, 2017 Author Share #19 Posted February 24, 2017 If telling the truth is considered bashing then I guess I'm bashing. But then you have to wonder whether those who claim Leica is being unfairly bashed are suffering from Stockholm syndrome. Link to post Share on other sites More sharing options...
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