psquared Posted January 30, 2009 Share #1 Posted January 30, 2009 Advertisement (gone after registration) Has anybody noticed banding at ISO 400 on their DMR? This is my usual ISO setting for wildlife shooting. I noticed for the first time that there was a regular, diagonal (almost vertical) banding pattern in the shadow areas (sometimes in the mid-tone areas, too). I see this in multiple pictures, and it's present on multiple RAW processors. I replicated this with different lenses now. The problem gets worse with higher ISO's. It's not noticeable at all at lower ISOs. I think I'll need to send the back to NJ for a look-see. Full image 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! Actual Pixel Level Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! Actual Pixel Level ' data-webShareUrl='https://www.l-camera-forum.com/topic/75608-dmr-banding/?do=findComment&comment=794736'>More sharing options...
Advertisement Posted January 30, 2009 Posted January 30, 2009 Hi psquared, Take a look here DMR Banding . I'm sure you'll find what you were looking for!
robsteve Posted January 30, 2009 Share #2 Posted January 30, 2009 Peter: As with all DMR problems, try cleaning the contacts. I also remember somebody complaining abou this in the past. I don't know what the resolution was. At that time, I also tested and found if you had a cell phone too close to the camera, it can also cause some banding. Robert Link to post Share on other sites More sharing options...
psquared Posted January 30, 2009 Author Share #3 Posted January 30, 2009 Thanks for the suggestions, Robert. I'll try cleaning the contacts when I go home. How close is close with the cellphone? I keep mine in a pants pocket. Peter Link to post Share on other sites More sharing options...
robsteve Posted January 30, 2009 Share #4 Posted January 30, 2009 Thanks for the suggestions, Robert. I'll try cleaning the contacts when I go home. How close is close with the cellphone? I keep mine in a pants pocket. Peter I think I was experimenting with having it in your breast pocket or shirt pocket. Was your phone on you when you had the problem? You could also try another card in case it is a card problem. Robert Link to post Share on other sites More sharing options...
Nitnaros Posted January 31, 2009 Share #5 Posted January 31, 2009 Peter - this does not look like ISO-related banding. Have not seen this kind of artefact on my DMR, but I have seen very similar patterns on my Canon 5D - when I was up on the Empire State Building with each extremely powerful antennas. So I vote for electromagnetic interference.... The 'other' Peter Link to post Share on other sites More sharing options...
psquared Posted January 31, 2009 Author Share #6 Posted January 31, 2009 It looks to me like electromagnetic interference as well, Peter, but from where? As Robert suggested, I first tried it with and without a cell phone nearby. No dice. I changed cards ... same thing. I cleaned the contacts on the battery, the R9 and the DMR. No change. I guess I'll have to send it to NJ again. I have a couple of other issues to address, too, like the following double exposure issue (happened to me twice). I bet you didn't know DMR could do multiple exposures. I didn't either. 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/75608-dmr-banding/?do=findComment&comment=795741'>More sharing options...
andit Posted January 31, 2009 Share #7 Posted January 31, 2009 Advertisement (gone after registration) Hi Peter, Sorry to hear about your DMR. I have just discovered a thread in the M8 section where the user upgraded the firmware to 2.02 and has since been experiencing this kind of banding. One shot seems to be fine and the next is banding... I don't know there was a DMR update recently? Here is the link to the relevant postings: http://www.l-camera-forum.com/leica-forum/leica-m8-forum/76688-increased-noise-since-firmware-update.html Hope this helps a bit. Andreas Link to post Share on other sites More sharing options...
dhsimmonds Posted January 31, 2009 Share #8 Posted January 31, 2009 Peter I have never experienced this with my own DMR (on an R9), but as a reference I upgraded to firmware 1.3 which solved most if not all of the image based problems and which also allowed me to use 4Gb cards. Link to post Share on other sites More sharing options...
Overgaard Posted January 31, 2009 Share #9 Posted January 31, 2009 Sorry to sound stupid, but which banding are we talking about (what is banding?). Is it the vertical lines? As for double exposure, I checked the manual. Double exposure does not seem possible with the DMR, but I would check if disabling the cocking of the shutter might mean one could do double exposures (I don't have a camera at hand to check with). I've had a funny problem with my DMR with a new 4GB card where it made two exposure in one picture (but side by side), the one normal, the other with lines and missing colors. And then forgot the other 75 files on the card. Had to use disk repair to get the pictures back again. The DMR seem to get periodically errors, mainly from not 100% clean contacts/sufficient contact with the contacts. So: Clean contacts. Fresh fully uploaded battery. Firmware 1.3 Good SD-cards Check rewind and other buttons on the camera is not "halfway" or anything confusing the camera. Link to post Share on other sites More sharing options...
Overgaard Posted January 31, 2009 Share #10 Posted January 31, 2009 Here's my "double exposure," two shots in the same picture, side by side. Most definitely an electronically and not a mechanical problem: Link to post Share on other sites More sharing options...
psquared Posted January 31, 2009 Author Share #11 Posted January 31, 2009 Andreas and Dave, I've been following that thread as well. It may or may not be the same thing. I have been using FW 1.3 ever since it came out, but I tried re-loading it. It didn't make any difference. Peter Link to post Share on other sites More sharing options...
psquared Posted January 31, 2009 Author Share #12 Posted January 31, 2009 Sorry to sound stupid, but which banding are we talking about (what is banding?). Is it the vertical lines? As for double exposure, I checked the manual. Double exposure does not seem possible with the DMR, but I would check if disabling the cocking of the shutter might mean one could do double exposures (I don't have a camera at hand to check with). I've had a funny problem with my DMR with a new 4GB card where it made two exposure in one picture (but side by side), the one normal, the other with lines and missing colors. And then forgot the other 75 files on the card. Had to use disk repair to get the pictures back again. The DMR seem to get periodically errors, mainly from not 100% clean contacts/sufficient contact with the contacts. So: Clean contacts. Fresh fully uploaded battery. Firmware 1.3 Good SD-cards Check rewind and other buttons on the camera is not "halfway" or anything confusing the camera. Yes, the banding I'm talking about is the near-vertical stripes seen in the actual-pixel picture. I don't think it's the typical banding that occurs in high ISO situations. That's why I think it's an electromagnetic interference problem. I've eliminated external electromagnetic sources as the cause, so it must be the electronics in the DMR that's causing the problem. On the multiexposure, the DMR isn't supposed to do them. That's why I also think it's some kind of an electronic glitch. Link to post Share on other sites More sharing options...
Overgaard Posted February 1, 2009 Share #13 Posted February 1, 2009 True. Just checked multi-exposure with the camera and it doesn't do it. Does sound like electronics, contacts I would guess. I've tried odd things when contacts needed cleaning, like taking one picture and then the camera operated as everything was normal, but didn't record any other pictures before turned off and on. Then same thing. Cleaning contacts handled that completely. Link to post Share on other sites More sharing options...
ammitsboel Posted February 1, 2009 Share #14 Posted February 1, 2009 It seems it has been pulled of their site, were can I download firmware 1.3? I have 1.2 -found it by doing a google search. Link to post Share on other sites More sharing options...
robsteve Posted February 1, 2009 Share #15 Posted February 1, 2009 You need to go through the download menu to find the DMR info and firmware update. Leica Camera AG - Downloads Link to post Share on other sites More sharing options...
ammitsboel Posted February 1, 2009 Share #16 Posted February 1, 2009 You need to go through the download menu to find the DMR info and firmware update. Leica Camera AG - Downloads I did, but it wouldn't show any downloads for DMR. Instead I found it through google. Link to post Share on other sites More sharing options...
glenerrolrd Posted February 4, 2009 Share #17 Posted February 4, 2009 Here's my "double exposure," two shots in the same picture, side by side. Most definitely an electronically and not a mechanical problem: I got a bunch of these with my Dmr on the same date. I am pretty sure its inadequate battery charge. My batteries are starting to get old and I get maybe 150-200 images per charge. I was down to my last battery and had many problems ....the double exposure exactly as with yours. I got a corrupt card as well ..looked like incomplete writes to the card. Unfortunately I think its time for a few new batteries. Link to post Share on other sites More sharing options...
psquared Posted April 24, 2009 Author Share #18 Posted April 24, 2009 Getting back to the original problem ... I finally sent the DMR in after hobbling along with just ISO 100 and 200 for about 2 months. The interference pattern started to affect ISO 200 shots. NJ's diagnosis is that the circuit board is bad and they need to replace it to the tune of $1,000 (estimated). Link to post Share on other sites More sharing options...
mgcd Posted April 25, 2009 Share #19 Posted April 25, 2009 Getting back to the original problem ... I finally sent the DMR in after hobbling along with just ISO 100 and 200 for about 2 months. The interference pattern started to affect ISO 200 shots. NJ's diagnosis is that the circuit board is bad and they need to replace it to the tune of $1,000 (estimated). They really should replace it for free, it's just not supposed to do that at all, period. Link to post Share on other sites More sharing options...
psquared Posted May 7, 2009 Author Share #20 Posted May 7, 2009 They really should replace it for free, it's just not supposed to do that at all, period. That is my sentiment, too, but I didn't want to protest too much. I did get the DMR back today. They did replace the circuit board, and the interference pattern is gone. The exterior of the DMR looks brand new. The paint on the button labels had been peeled off a long time ago, but when I got the DMR back, it appears that all the labels have been repainted. So far, everything looks great. People in NJ has done a great job. I would have liked it better if they fixed it for free, but I'm happy nevertheless. Link to post Share on other sites More sharing options...
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