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This is what PhaseOne had to say about my Fuji .RAF file issue
on the contrary to what Adobe would generally like people to believe, DNG is by far not a standard and converting file to DNG does not "convert" the actual raw data. Therefore since the Fuji uses its own special CCD, the data recorded in the raw file are of special nature, but this means that the DNG files will contain these special data as well and if Capture One does not support the original file, it will not be able to work with the DNG either. This is true especially for cameras with special CCDs, such as Fuji or Sigma.
The issue with DNG files from Lightroom might be that these files are likely to be linear DNGs, which is a completely different file altogether. More on this confusing topic can be found for example here:
http://www.barrypearson.co.uk/articles/dng/linear.htm
Our engineers are working hard to overcome these differences, but please understand that the nature of DNG is not as straightforward as some people believe. However future versions will most likely see improvements as additional cameras and formats will be added.
Comment by Mannesty posted on Adobe DNG Converter queries at 17/03/2008 - 23:17
I took some test shots in .PEF, imported them into Lightroom, then converted them to DNG with Lightroom's converter.
Now when I view the image 1:1 in Lightroom, the message "An unknown error has occured" appears in the top of the photo. The dialogue is of the same type as the rendering dialogue when it needs to create a higher resolution preview.
Interestingly, by using Lightroom's own DNG converter, all previous adjustments made to the image are retained. Something that I guess would not happen if an external converter is used. Shame it doesn't work.
EDIT: I joined the Lightroom forum to research this, and find that many are experiencing the same problem. The problem seems to have been introduced with version 1.4. Adobe are aware of it. Going back to version 1.3 apparantly doesn't help.
Comment by Mannesty posted on Adobe DNG Converter queries at 15/03/2008 - 20:01
Or even to shoot JPEG instead. It's issues like this that are one of the many reasons I have avoided RAW capture.
I now shoot only RAW, mainly to give me the insurance of that extra little bit of lattitude to rescue an image because I (and in some cases, the camera, but not often) screwed up somehow.
I've read, with interest, your many past posts on the JPG v RAW debate John. You clearly prefer JPG, I much prefer RAW. Neither is right or wrong, just what suits.
Comment by Mannesty posted on Adobe DNG Converter queries at 15/03/2008 - 15:47
Storage space is actually only a secondary issue for me. I have enough free space on my 450Gb RAID array, and I have a 250Gb and a 200Gb external USB2 drives. I have a 1Tb external drive on it's way from UK which I may well just use for backups and keep it in my fire safe.
OT: I work in the IT business selling and maintaining servers, workstations etc. Over the years I've developed a (healthy) paranoia about losing data, especially my own.
I've been looking at deploying a NAS box and tried FreeNAS. Hopelessly unreliable, so I'm looking at a Netgear ReadyNAS solution now.
Anyway, it'd be rather nice if the software that many of us use would actually do what it claims to do. I've opened a support case with Phase One, let's see what they come up with.
Comment by Mannesty posted on Adobe DNG Converter queries at 15/03/2008 - 15:39
Equipment: I use a Pentax K10D, initially shooting in DNG format due to the minimal support for the .PEF's it produced at the time. I also use a Fujifilm F810 P&S camera and save in Fuji's .RAF (RAW) format.
Software: I use a mixture of Lightroom (1.4) and CaptureOne (4.01) for RAW development, both of which claim to support the .DNG format. I've recently downloaded the latest DNG converter from Adobe.
Objective: I'm looking at reducing file sizes to save space and backup time.
My dilemma:-
1: Fuji .RAF files are not supported by CaptureOne (C1) so I converted them using the standalone DNG converter. C1 can't 'see' them. C1 can open my .DNG's from the K10D with no problem.
2: Lightroom opens .RAF files with no problem but it can't 'see' the .DNG conversions of these files made in 1: above. They are not available for import.
3: Lightroom has it's own DNG converter and .RAF files saved as DNG's by it can be 'seen' and imported into Lightroom, but not C1.
4: I have some image files in 'in camera' .DNG format from the K10D from a time before its .PEF was widely supported.
I assume these are uncompressed as they are about 10Mb each. When I run these through the DNG converter (DNG > DNG compressed), the resulting file is the same size or a few bytes larger. This is true of both the standalone and Lightroom versions of the converter with compression turned on.
I haven't tried older versions of the DNG converter.
Any ideas? I'm at a loss.
My conclusions so far are that C1 has a bug causing both .DNG versions of .RAF files to be unusable and the standalone DNG converter has a bug that Lightroom can't deal with. Also, neither DNG conversion methods is able to compress in-camera DNG's from the K10D.
Comment by Mannesty posted on Adobe DNG Converter queries at 15/03/2008 - 11:51
No worries aj. I'm still with V1.1 and as I have a K100D there is no pressing need for me to update Lightroom yet.
Version 1.4 is definitely flaky which is why I've downgraded to 1.31.
Comment by Mannesty posted on Adobe Photoshop Lightroom and K20D/K200D at 22/03/2008 - 15:53
Is the PEF format for the k20/200 different then? Seems a good reason to stick to DNG?
Comment by Mannesty posted on Adobe Photoshop Lightroom and K20D/K200D at 15/03/2008 - 14:41
Comment by Mannesty posted on Adobe Photoshop Lightroom and K20D/K200D at 15/03/2008 - 10:55
Comment by Mannesty posted on Adobe Photoshop Lightroom and K20D/K200D at 15/03/2008 - 09:45

