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RAW File Problem in Dimage A2

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More a problem than critique really. When I use my Dimage A2 in RAW + highest quality JPEG file writing, at some point in the run of shots taken, these pink corruption lines appear on the RAW file. They vary in width (usually narrow), sometimes have more than one group of lines as in this case but can be single band of varying width, and vary in position, but are always in the upper third of the image (presumably in the bottom third of the sensor as the image is captured upside down), usually later on in the sequence of photo's (? warmer/hot CF card?), and seems only to happen with RAW + JPEG capture. I've not tried lower quality JPEGs, as this seems to defeat the objective of reviewing and zooming in to assess photo quality which can only be done on JPEGs on the A2 (can any camera zoom in on RAW review??). The bizarre thing is that the then 'processed' JPEG does not have any artefact lines, and appear as a clean image - explain that one. I always format CF cards in camera once files have been backed up. This happens on a Delkin, a Sandisc, a Kingston CF card, and also on a Transcend SD card when using a Maplin SD to CFII converter. Thumbnails in Dimage Viewer do not show the lines. In RawShooter Essentials 2005 and 2006, the lines appear on the thumbnails along the top viewing pane at the end of the upload, when the yellow box around the thumbnail is cleared. The only reference I've see to this in any detail is on the K-M forum section of dpreview, but no answer was given as to why. I've had the camera from new, and it did it from fairly early on, after it started corrupting cards and went back to Minolta for repair for that. I must admit I've not been back to Minolta about it, but back up from them is limited now, and Sony didn't reply when I tried to register as a Minolta user with them! Resizing and compressing has left extra artefacts on the image, but hopefully you can see the problem I'm describing. Anyone come across this problem? Anyone solved it so RAW + best quality JPEGs can still be captured? Does the camera store the RAW file in the buffer memory while processing the JPEG, then write the JPEG before the RAW to CF card, leading to a RAW corruption, as the JPEG is always before the RAW in the sequence on the card. I can't see that it can be a sensor related issue as most RAW images and all JPEGs are fine. Any ideas welcome. I'll email Minolta support as well and see what they think.
Thanks

Camera:K-M Dimage A2
Lens:28-200 zoom
Title:RAW File Problem in Dimage A2
Username:vetcameraman vetcameraman
Uploaded:21 Jun 2008 - 4:08 PM
Tags:Close-up / macro, Flowers, Flowers & plants, Forget-me-nots, Raw file writing problem
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Chrism8
Chrism8  7743 forum posts England13 Constructive Critique Points
21 Jun 2008 - 4:15 PM

I had a similar problem last year which turned out to be a faulty 12in1 card reader, now use only a dedicated reader and problem gone, hth Chris

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vetcameraman
21 Jun 2008 - 10:50 PM

Thanks for thought. However, it happens with direct download from the camera to USB port, through an Integral 17-in1 card reader, with my Epson Picturemate used as a card reader, and with a Jessops PCMCIA CF card adapter.

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sherlob
sherlob e2 Member 82283 forum postssherlob vcard United Kingdom123 Constructive Critique Points
22 Jun 2008 - 1:38 AM

Still I'd try the card reader route as an alternative - it does look very characteristic of a file error as opposed to a camera error - remember the RAW file is significantly larger. Also - I don't understand why you would download direct from the camera (unless trying to rule out a memory card error - if so just ignore this post) - a card reader is just so much quicker!

Rgds,

Adam

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peterblaise
2 Aug 2008 - 9:43 PM

What's your ROM revision? It feels like a mechanical connection problem in-camera circuits, as you suggest in the Raw path only, or a glitch in programming, again, Raw only. How do we reset or back-date and re-update our cameras? It's not wide spread, only happens in a few cameras and differently for each, implying idiopathic failure, not design flaw. I think Sony needs to see it again. In the US, it's $110 for flat rate out of warranty service. UK?

Checking the camera firmware version
(1) Press the main switch to turn on the camera.
(2) Press and hold the function button and press the menu button to open the setup menu. (Confirm that the section 1 menu tab is
highlighted.)
(3) Press the display information button. A window will open to indicate the firmware version.
(4) Check the version number of displayed on the LCD monitor. If the version is Ver.1.13e or earlier, the camera must be updated.
Press the central button of controller to close the version number display.

They're up to v1.14
http://download2.konicaminoltaeurope.com/openmind/technic/kmphdwl.nsf/showcomment?openagent&id=1E58596513251AD3C1257499006AE599&qs=&ch=CAM&dist=BEU&ui=EN&dg=fw&prod=DiMAGE%20A2&dsg=&os=&lang=English&ml=00&rid=&sub=System%20Software&pcat=&pcc=0&fr=0&frs=]http://download2.konicaminoltaeurope.com/openmind/technic/kmphdwl.nsf/showcomment?openagent&id=1E58596513251AD3C1257499006AE599&qs=&ch=CAM&dist=BEU&ui=EN&dg=fw&prod=DiMAGE%20A2&dsg=&os=&lang=English&ml=00&rid=&sub=System%20Software&pcat=&pcc=0&fr=0&frs=
http://download2.konicaminoltaeurope.com/openmind/technic/kmphdwl.nsf/showcomment?openagent&id=1E58596513251AD3C1257499006AE599&qs=&ch=CAM&dist=BEU&ui=EN&dg=fw&prod=DiMAGE%20A2&dsg=&os=&lang=English&ml=00&rid=&sub=System%20Software&pcat=&pcc=0&fr=0&frs=
http://download2.konicaminoltaeurope.com/openmind/technic/kmphdwl.nsf/ftsearch?openagent&ch=CAM&dist=BEU&ui=EN&dg=fw&prod=DiMAGE%20A2&dsg=&os=&lang=English&ml=0&rid=&sub=System%20Software&pcat=&pcc=0&fr=0&frs=]http://download2.konicaminoltaeurope.com/openmind/technic/kmphdwl.nsf/ftsearch?openagent&ch=CAM&dist=BEU&ui=EN&dg=fw&prod=DiMAGE%20A2&dsg=&os=&lang=English&ml=0&rid=&sub=System%20Software&pcat=&pcc=0&fr=0&frs=
http://download2.konicaminoltaeurope.com/openmind/technic/kmphdwl.nsf/ftsearch?openagent&ch=CAM&dist=BEU&ui=EN&dg=fw&prod=DiMAGE%20A2&dsg=&os=&lang=English&ml=0&rid=&sub=System%20Software&pcat=&pcc=0&fr=0&frs=

Konica Minolta DiMage A2 info:
http://www.konicaminoltasupport.com/DiMAGE_A2.2308.0.html?&L=0]http://www.konicaminoltasupport.com/DiMAGE_A2.2308.0.html?&L=0
http://www.konicaminoltasupport.com/DiMAGE_A2.2308.0.html?&L=0
http://ca.konicaminolta.com/products/consumer/digital_camera/dimage/dimage-a2/index.html]http://ca.konicaminolta.com/products/consumer/digital_camera/dimage/dimage-a2/index.html
http://ca.konicaminolta.com/products/consumer/digital_camera/dimage/dimage-a2/index.html

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vetcameraman
9 Aug 2008 - 12:06 AM

Sorry, I thought this had gone quiet, so thank you for your input - I hadn't checked for a while!
What is the ROM revision? Is that the same as the Firmware version? It is up to date at v1.14 (updated on second return to base when the Macro switch malfunctioned.) If there was a connection or straight forward software issue, I would have expected all of the RAW files on the cards to be affected. However, the problem only happens for some RAW files, usually shot later on the card in a shoot sequence, not all of them, and seems only to happen when they are shot with JPEGs, and the position of the corruption lines varies, as does the amount of corruption on the RAW files. I could post some more examples if that would help. Return to K-M last time was 120, but fortunately, I've had repair insurance for technical problems since I purchased the camera new, so the twice its been back has proven worth while. For information, the first time it was returned (under 6 months old), it had formatted or erased a whole card a few times (at a wedding!!!!)(managed to salvage files with some recovery software), but also seemed to produce corruption lines on some files. I suspect a software problem, or possibly some problem with memory space during transfer from the buffer(? hence ROM effect you mention?), or possibly a strange effect of heat on the memory card function, as they do get hot with usage pressure.
I'd be interested in your thoughts again.
I really should get round to sending some examples to K-M support and Sony to see what they think.
Thanks again
Martin

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