atufte Posted December 14, 2006 Share #1 Posted December 14, 2006 Advertisement (gone after registration) Hello guys I have one of the "new batch" firmware 1.09 versions of the Leica M8, and everything seemed fine until i took this test shot's... First i tought it was some kind of reflection but after testing more and trying to provoke this i found it to be in the exact same spot in every image, what's so strange is that this only happens with some of the shots and some not (2 of 10) It does this in high ISO only, (from 640 and up), no filter was used, and the lens was 35/2 summicron pre-asph... (both this shot's are ISO 1250, at f/2, the difference in the noise level is because the "nostripe" shot was a bit overexposed and adjusted to match the "stripe" shot, and yes this happens even if the exposure is equal in both shots...) Here's one with the stripe: http://www.alexandertufte.com/stripe.jpg Here's one without the stripe: http://www.alexandertufte.com/nostripe.jpg Any idea's.... Best Regards Alexander Tufte http://www.alexandertufte.com Link to post Share on other sites More sharing options...
Advertisement Posted December 14, 2006 Posted December 14, 2006 Hi atufte, Take a look here Strange stripe with M8 . I'm sure you'll find what you were looking for!
hammam Posted December 14, 2006 Share #2 Posted December 14, 2006 Can you resize your images? They're so big that's is impossible to see what you're talking about. What «stripe» do you mean? Link to post Share on other sites More sharing options...
Eoin Posted December 14, 2006 Share #3 Posted December 14, 2006 Looks like the original banding caused by the overexposure on the top of the frame due to the bulb in the bath room. You say it's always in the same place? do you mean when you take the exact same subject matter?. I'd try to move the hot area in the photo to another area in the frame and see if the band follows the light. Link to post Share on other sites More sharing options...
atufte Posted December 14, 2006 Author Share #4 Posted December 14, 2006 Ok, i made them smaller, it's in the same links i posted in the first post... Best Regards Alexander Tufte http://www.alexandertufte.com Link to post Share on other sites More sharing options...
dhoelscher Posted December 14, 2006 Share #5 Posted December 14, 2006 The experts on the forum may be able to speak with more authority to this --- but wasn't the original hardware fix directed at horizontal streaking/banding? The fact that this is a vertical phenomenon may indicate a different thing altogether? Guy Mancuso's and others experiences also suggest that these phenomena may be virtually eliminated with a B+W 486 filter as well. That would be very interesting to try. DH Link to post Share on other sites More sharing options...
atufte Posted December 14, 2006 Author Share #6 Posted December 14, 2006 Looks like the original banding caused by the overexposure on the top of the frame due to the bulb in the bath room. You say it's always in the same place? do you mean when you take the exact same subject matter?. I'd try to move the hot area in the photo to another area in the frame and see if the band follows the light. It's not the bulb, at first i thought so too but, but i made several other pictures with no bulb in the image, but the thing that's similar in all the images which shows the stripe, is, light in front, not from the back, it never appears with th elight source from behind the camera... And yes it's at the exact same place in the image/sensor, if i view it in PS with the grid view and rulers it on the same spot in every image... Best Regards Alexander Tufte http://www.alexandertufte.com Link to post Share on other sites More sharing options...
Eoin Posted December 14, 2006 Share #7 Posted December 14, 2006 Advertisement (gone after registration) Well if your light source is in a different place on the images yet the stripe remains fixed to the one place, I'd suggest you have a defective sensor. I think you'll need to do more testing to see if this is limited to the one vertical stripe or you can induce stripes elsewhere. I feel for you, I'd be less than happy to have this with a suposed fixed M8. Link to post Share on other sites More sharing options...
atufte Posted December 14, 2006 Author Share #8 Posted December 14, 2006 Here's another one... (ISO 2500) PS! (only seen this in 1250 and 2500 ISO shot's) Stripe on the exact same spot, but the light source is not... http://www.alexandertufte.com/stripe2.jpg Best Regards Alexander Tufte http://www.alexandertufte.com Link to post Share on other sites More sharing options...
fotografr Posted December 14, 2006 Share #9 Posted December 14, 2006 Here's another one... (ISO 2500) PS! (only seen this in 1250 and 2500 ISO shot's) Stripe on the exact same spot, but the light source is not... http://www.alexandertufte.com/stripe2.jpg Best Regards Alexander Tufte www.alexandertufte.com You must have gotten one of the replaced sensors that has to go back for a replacement of the replacement. Link to post Share on other sites More sharing options...
Cyrshot Posted December 14, 2006 Share #10 Posted December 14, 2006 I agree with the bad senor, the strip is too perfect to be caused by light issues, it seems digital. Can you see the strip when reviewing the pictures in the camera? Link to post Share on other sites More sharing options...
atufte Posted December 14, 2006 Author Share #11 Posted December 14, 2006 I agree with the bad senor, the strip is too perfect to be caused by light issues, it seems digital. Can you see the strip when reviewing the pictures in the camera? Hi I tried shooting JPG, and the in camera noise reduction removes it completly...BUT i never shot JPG, only RAW, so sadly this will not work... I was told by my dealer/and Leica (Solms) that this camera/serial is from the last (newest) production line/batch from the factory in Solms, it came from Solms this monday.... No matter what this is, i think i will wait some time before i send it in for a fix/sensor replacement, because of the pressure at the factory at the moment i will probably have to wait for weeks or maybe even worse...uhhh Since i do not use higher than ISO 640 for 90% of my work i guess i can wait a bit... No matter what this is VERY annoying, when they even have a technician to check everything and even signs with a handwritten signature that everything is OK, when it's really not...? (Specially after all of their other problems with the M8, i would think quality control to be more important than ever...?) Best Regards Alexander Tufte http://www.alexandertufte.com Link to post Share on other sites More sharing options...
atufte Posted December 14, 2006 Author Share #12 Posted December 14, 2006 Here' another one, just to show it's not the light source.... http://www.alexandertufte.com/stripe3.jpg Best Regards Alexander Tufte http://www.alexandertufte.com Link to post Share on other sites More sharing options...
B&W Posted December 14, 2006 Share #13 Posted December 14, 2006 Sad to see, Alexander Hopefully you get it fix Mine does not do this - I really tried - and it also arrived with the same batch as yours Link to post Share on other sites More sharing options...
mike prevette Posted December 14, 2006 Share #14 Posted December 14, 2006 Its definitely your chip, or the wiring around your chip. I had a similar issue with a very high end cinema camera not to long ago. It was one of four prototypes in the world and the first day I saw a similar stripe in the high iso tests, but by the third day it had turned into a completely solid band across all iso's. Turns out one of the data paths off the chip was corrupt. _mike Link to post Share on other sites More sharing options...
marknorton Posted December 15, 2006 Share #15 Posted December 15, 2006 What about the much thicker stripe which appears in all the pictures - is this real or is it also a problem? To cover all bases, can I suggest you try reformatting the card in the camera and also try a different card. Link to post Share on other sites More sharing options...
Cyrshot Posted December 15, 2006 Share #16 Posted December 15, 2006 Alexander, The candel picture makes the strip very apparent and as I can only imagine, very frustrating. Reformatting the card would be good to cover all variables, however, I imagine it will be needed to be sent back. It's smart to wait, sending it now might cause a bigger headache, plus, lets hope they can actually fix it, since the model you got, should have been free of any problems. I am new to the leica world, and although I do not doubt their products, this whole mess is very sad. Good luck, -Matt Link to post Share on other sites More sharing options...
bayerische Posted December 15, 2006 Share #17 Posted December 15, 2006 Posted in the wrong thread... Sorry, moderator can remove. Link to post Share on other sites More sharing options...
Peter Branch Posted December 15, 2006 Share #18 Posted December 15, 2006 A few of the pictures taken with my M8 prior to its return to Solms show an identical vertical stripe defect, not obviousy associated with a light source, at 2500 ISO. There is a systemic problem of some sort here which I hope Solms will sort out. Link to post Share on other sites More sharing options...
atufte Posted December 15, 2006 Author Share #19 Posted December 15, 2006 What about the much thicker stripe which appears in all the pictures - is this real or is it also a problem? To cover all bases, can I suggest you try reformatting the card in the camera and also try a different card. I tried 4 different cards, and reformatted them all, but no difference, i also tried different lenses, i wish i could try out with the 486 filter but, i have had no luck finding one for either of my lenses... Sorry Mark but i dont know what you mean about a second thicker stripe?, i only see one thick stripe and that's the main problem...? Do you see more than one stripe...? Best Regards Alexander Tufte http://www.alexandertufte.com Link to post Share on other sites More sharing options...
marknorton Posted December 15, 2006 Share #20 Posted December 15, 2006 Alexander, look at the candles. There's a thick stripe coming out of the top of the left hand candle and another thinner stripe between them. Tough to know if the first stripe is meant to be there - it's there in the picture of the lady with the dog, might be a surface on the wall but it seems rather flat. Link to post Share on other sites More sharing options...
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