Giulio Zanni Posted June 28, 2016 Share #1 Posted June 28, 2016 Advertisement (gone after registration) One of my two Monochrom type 246 is producing a sort of banding/posterization on flat skies. I sent the files to Leica and they told me that everything is fine. I attach a file straight out of the camera. I can see it on both my computers with calibrated screens. Giulio 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/262090-how-can-leica-not-seeing-it/?do=findComment&comment=3070040'>More sharing options...
Advertisement Posted June 28, 2016 Posted June 28, 2016 Hi Giulio Zanni, Take a look here How can Leica not seeing it?. I'm sure you'll find what you were looking for!
Joshua Lowe Posted June 28, 2016 Share #2 Posted June 28, 2016 I can clearly see it. Link to post Share on other sites More sharing options...
Giulio Zanni Posted June 28, 2016 Author Share #3 Posted June 28, 2016 I can clearly see it. Pity that this site does not allow for bigger files, because it's evident the dng Link to post Share on other sites More sharing options...
pop Posted June 28, 2016 Share #4 Posted June 28, 2016 The banding in the sky is clearly visible. This forum allows much larger files and the banding could for all I know be an artefact caused by the forum compressing the picture. Perhaps these are of some use to you: How do I upload photos to the forum? What's the size limit for uploading photos? Why does the forum shrink my photos and adds ugly artifacts? Link to post Share on other sites More sharing options...
mikemgb Posted June 29, 2016 Share #5 Posted June 29, 2016 I can see the banding, if only one of two identical cameras is producing this then that is a problem. Unfortunately the real problem starts when Leica says the image quality is "within specification". Link to post Share on other sites More sharing options...
Giulio Zanni Posted June 29, 2016 Author Share #6 Posted June 29, 2016 The banding in the sky is clearly visible. This forum allows much larger files and the banding could for all I know be an artefact caused by the forum compressing the picture. As said the banding is visible in the dng, not just on the web Link to post Share on other sites More sharing options...
jaapv Posted June 29, 2016 Share #7 Posted June 29, 2016 Advertisement (gone after registration) The best would be to upload a full DNG to something like WeTransfer. That way we could take a look. Link to post Share on other sites More sharing options...
Giulio Zanni Posted June 29, 2016 Author Share #8 Posted June 29, 2016 The best would be to upload a full DNG to something like WeTransfer. That way we could take a look. That's was the way I sent the files to Leica. I'll see if I can do it also for the forum Link to post Share on other sites More sharing options...
pico Posted June 29, 2016 Share #9 Posted June 29, 2016 I can post large images on my server. If you email it to me, I will do that for you. This is a rather forensic view of banding of another type. Or is it moire? Actually in the picture. I overlaid two versions. Link to post Share on other sites More sharing options...
Giulio Zanni Posted June 29, 2016 Author Share #10 Posted June 29, 2016 Thanks John, I can't email dngs from gmail, too big. If you send me in PM you email address I will upload them for you in WeTransfer. Usually miore' appears in repeated patterns, it shouldn't be the case in flat skies. I have no problems with clouds but when the sky is flat this happens. If I try to darken the sky it's makes things even worst. If the image get compressed, even worst. Giulio Link to post Share on other sites More sharing options...
jaapv Posted June 29, 2016 Share #11 Posted June 29, 2016 Well, this is quite convincing as such. If only one of your cameras does this it cannot be a fault in your workflow ( like working in 8 bits), so I would press on with Leica.Maybe address it to Mrs. Frankl. BTW. Is the centrefold there naturally, or did you create it? Link to post Share on other sites More sharing options...
lucerne Posted June 29, 2016 Share #12 Posted June 29, 2016 Yes. I can see it on an iPad retina screen clearly. I also see detritus. good luck. Link to post Share on other sites More sharing options...
Giulio Zanni Posted June 29, 2016 Author Share #13 Posted June 29, 2016 Well, this is quite convincing as such. If only one of your cameras does this it cannot be a fault in your workflow ( like working in 8 bits), so I would press on with Leica.Maybe address it to Mrs. Frankl. BTW. Is the centrefold there naturally, or did you create it? This is the dng straight out of the camera. The centrefold is caused by flipping up the 24. It was later corrected in post. Here is the link to the processed image http://www.giuliozanni.com/p566783243/h716b9185#h716b9185 Do you have an email address for Mrs. Frankl? Link to post Share on other sites More sharing options...
Giulio Zanni Posted June 29, 2016 Author Share #14 Posted June 29, 2016 The problem is much more visible in the Library module of LR which uses a narrower profile than in Develop which uses an RBG ProPhoto profile. The problem is that you export the image from Library. Like all the banding problems it diminishes by adding grain to the sky, the problem is that I want be able to add grain when it pleases me not just to get acceptable images. This is becoming a deal breaking for my kind of photography. I just want to make it working because I feel at home with Leica, but not to detriment of my images. Link to post Share on other sites More sharing options...
pico Posted June 29, 2016 Share #15 Posted June 29, 2016 My sympathies. I enjoy the photos, regardless. One parting question: did you have a filter on the lens? Link to post Share on other sites More sharing options...
Giulio Zanni Posted June 29, 2016 Author Share #16 Posted June 29, 2016 My sympathies. I enjoy the photos, regardless. One parting question: did you have a filter on the lens? Yes I had a red filter but that's not the culprit as I have the same problem without filter Link to post Share on other sites More sharing options...
G3rald Posted July 2, 2016 Share #17 Posted July 2, 2016 As someone who intends to purchase the typ 246, I am concern. I have hoped the Monochrom will speed up my workflow from the mp240, and I do use lightroom since it is easier and faster to dodge and burn. The "banding" I am seeing here doesn't help. It should not be moire, as from what I understand, is causes by the RGB filter and demosiacing. In this case Monochrom have no need for that process. This problem should be similar across all typ 246 model. I am wondering if it is an impact from the pixels breaking up because of the 12 bit dng? Would be nice if an expert can enlighten us. Thank you Link to post Share on other sites More sharing options...
250swb Posted July 2, 2016 Share #18 Posted July 2, 2016 Yes I had a red filter but that's not the culprit as I have the same problem without filter Is the image genuinely 'straight out of the camera' with no pre-sets or ACR adjustments applied? I ask because it can happen that a pre-set or ACR adjustment tries to hard, so in an area of smooth tone (your sky) for example it tries too hard to add contrast (when there is no contrast in the sky) or tries too hard to sharpen an area of smooth tone (when there is no detail to sharpen). Link to post Share on other sites More sharing options...
Giulio Zanni Posted July 2, 2016 Author Share #19 Posted July 2, 2016 Is the image genuinely 'straight out of the camera' with no pre-sets or ACR adjustments applied? I ask because it can happen that a pre-set or ACR adjustment tries to hard, so in an area of smooth tone (your sky) for example it tries too hard to add contrast (when there is no contrast in the sky) or tries too hard to sharpen an area of smooth tone (when there is no detail to sharpen). Yes the image is genuinely straight out of the camera, I did not set up any preset during the import of files. As said, the problem is more visible in the Library module of LR as it uses a narrower profile than Develop. For some time I used Bridge but it is a painful process. I would not like to give on LR because is very handy for me. Link to post Share on other sites More sharing options...
tobey bilek Posted July 8, 2016 Share #20 Posted July 8, 2016 Well, this is quite convincing as such. If only one of your cameras does this it cannot be a fault in your workflow ( like working in 8 bits), so I would press on with Leica.Maybe address it to Mrs. Frankl. BTW. Is the centrefold there naturally, or did you create it? 8 bit work is highly suspect and why I got rid of Elements. Link to post Share on other sites More sharing options...
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