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The strangest artifacts i´v seen!

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What might this be?

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Are you using a non-Intel Mac and the latest version of Lightroom?

 

 

No the images look like this in the LCD screen even before i export them,

and when i open the image in photoshop it looks like this

 

direct from RAW file

160 ISO

 

always seems to be along the hard edge between light and dark.

sensor???

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No, it is probably not the sensor. This looks electronic. The first suspect is the RAW converter. Can you upload a RAW file showing this problem somewhere like Yousendit.com for us to look at?

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Definitely too "regular" to be a sensor issue... this is the output of some software computation that gets fooled in areas of strong "jumps of values" between adjacent pixels. Try another RAW processor o make the RAW processed by someone else (we included, if you can send it...)

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No, it is probably not the sensor. This looks electronic. The first suspect is the RAW converter. Can you upload a RAW file showing this problem somewhere like Yousendit.com for us to look at?

 

 

Thanks so much, really appreciate the feedback.

 

Here is a link to a file taken directly from the camera:

http://www.krets-t.se/Webbplats/L1010070.DNG

 

also as mentioned the artifacts can already be seen on the LCD screen,

so it can´t really be something outside of the camera?

 

Mike

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Definitely too "regular" to be a sensor issue... this is the output of some software computation that gets fooled in areas of strong "jumps of values" between adjacent pixels. Try another RAW processor o make the RAW processed by someone else (we included, if you can send it...)

 

Thanks so much, really appreciate the feedback.

 

Here is a link to a file taken directly from the camera:

http://www.krets-t.se/Webbplats/L1010070.DNG

 

also as mentioned the artifacts can already be seen on the LCD screen,

so it can´t really be something outside of the camera?

 

Mike

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Definitely too "regular" to be a sensor issue... this is the output of some software computation that gets fooled in areas of strong "jumps of values" between adjacent pixels. Try another RAW processor o make the RAW processed by someone else (we included, if you can send it...)

 

I have tried all possible adjustments including JPEG/DNG/colour space/ISO etc.. etc...

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Yes- I see it in the newest version of ACR. The blue fringe is fairly normal in such a situation, I wouldn't worry about it; easy enough to fix, but I am puzzled about that ragged edge. It is less in my RAW conversion (latest CS4), but definitely there. I'll play with it at home with C1. If you see it on the camera, that makes it all the more puzzling. Send this to Leica, I would say.

Edited by jaapv

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But it looks totally different in the three versions we have on the screen now... What is going on??

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But it looks totally different in the three versions we have on the screen now... What is going on??

 

Hi,

 

the images are originaly are from my original files

 

very depressing,

no solution yet,

 

how should i approach Leica?

Guarantee is out...

 

Mike

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Jaap - it's there in C1-5 too, albeit the purple fringing's reduced - which C1 does well with on M8/M9 files.

 

That jagged edge is nasty, though - have a look at the 200% enlargement.

 

Hi Rich,

 

thanks for your valuable comments.

(in fact i have followed your comments via a RD1s and now over to the M8)

 

obviously this must be something that happens within the camera, a software issue,

can i/is there any point in re installing the firmware?

 

any way to "re-start" the software?

 

thanks,

 

mike

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I doubt the firmware's causing the issue - though if you haven't got the latest, you could try installing it.

 

As to what's causing the problem, I'm not sure. Granted, digital cameras don't handle burn out well, but... As Jaap suggested, it does look a demosaicing artefact, which is caused by raw converters (see DPanswers: Defects), but I've never seen such a severe case from the M8, and you have multiple examples. Worth trying other raw converters and seeing what happens.

 

It's possible that you've been unlucky enough to pick unfortunate and uncommon light situations that all show this problem, but that does seem to be stretching coincidence.

 

Perhaps you're not alone and others have encountered this artefact and will post their experiences here.

 

Sorry I can't throw more light on your problem...

 

 

Thanks Rich,

 

ALL such images (strong light contrast) are giving me the same effect

+ i do have the latest firmware

 

Q: how can i effect/change raw converters in the camera?

 

is it possible to "re-install" the internal camera software/system?

 

best,

 

Mike

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Yes- I see it in the newest version of ACR. The blue fringe is fairly normal in such a situation, I wouldn't worry about it; easy enough to fix, but I am puzzled about that ragged edge. It is less in my RAW conversion (latest CS4), but definitely there. I'll play with it at home with C1. If you see it on the camera, that makes it all the more puzzling. Send this to Leica, I would say.

 

Thanks for your comments,

 

how should one best approach Leica?

and how does/can one effect raw converters in the camera?

 

I would be surprised if noone else has come across this phenomenon ...

 

thanks

 

Mike

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As Jaap suggested, it does look a demosaicing artefact, which is caused by raw converters (see DPanswers: Defects), but I've never seen such a severe case from the M8, and you have multiple examples. Worth trying other raw converters and seeing what happens.

 

Seems like this might well be the problem, but seeing as the problem is "inside" the camera

how can I "try" other raw converters?

 

Mike

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I've just tried looking at these DNGs in aperture. Again we have different results. Aperture seems to be doing a slightly better job than some others here, but it's still not good.

 

I have a question though. What lens was in use here, there's nothing in the EXIF. If the lens is coded, have you tried the same with detection on?

 

Here's how aperture interprets the files.

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I've just tried looking at these DNGs in aperture. Again we have different results. Aperture seems to be doing a slightly better job than some others here, but it's still not good.

 

I have a question though. What lens was in use here, there's nothing in the EXIF. If the lens is coded, have you tried the same with detection on?

 

Here's how aperture interprets the files.

 

Many thanks for your kind comments.

 

I am using a non-coded summicron-35 (1973)

I just did a test with "detection on"

but got exactly thesame maze-fringe-effect.

 

As mentioned earlier, the defect is seen on the camera screen before i even export the image. So this must mean the problem is "inside" of the camera(?)

 

Mike

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