Archived posting to the Leica Users Group, 2014/04/12

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Subject: [Leica] DNG
From: jayanand at gmail.com (Jayanand Govindaraj)
Date: Sat, 12 Apr 2014 22:32:46 +0530
References: <6AE62720-D59E-4951-8098-F5B3F015803D@mac.com>

Robert,
I made it clear that I did not have a clue...(-:
Cheers
Jayanand


On Sat, Apr 12, 2014 at 10:21 PM, Robert Rose <robert.rose at mac.com> wrote:

> Jayanand,
>
> I think there is some confusion here, as the text you quoted pertains
> to "converted" DNG files, which I understand as a file that started life as
> something else, such as a NEF Nikon raw file, and then was converted to DNG
> by some Adobe product, such as Lightroom.  I am not surprised that DxO
> would not want to touch that.
>
> All I do know is that the native DNG format from my M9 works great in
> Lightroom, previews just fine on my Mac, and is what I shoot.  Anything
> that I need to do with a photo in my workflow I can do in Lightroom, and
> DNG gives me the most latitude if I need it.
>
> All the best,
> Bob Rose
>
>
>
> Message: 18
> Date: Fri, 11 Apr 2014 19:56:36 +0530
> From: Jayanand Govindaraj <jayanand at gmail.com>
> Subject: [Leica] DNG
> To: Leica Users Group <lug at leica-users.org>, PSM
> <psm-1857 at googlegroups.com>
> Message-ID:
> <CAH1UNJ1pQRu_yu3gA2p7D17pxLQ354+NeTVm9mXy7ySoXrNmHw at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> From a Nikon list about DNG for what it is worth - I have no idea if it is
>
> true or not. I do not use DNG format, so it is of little concern to me, but
> those who do might want to check it out:
>
> Quote
> Worth noting that DxO Optics Pro does not (cannot, will not) open DNG files
> for the following reasons:
>
> "Regarding DNG files. We do not offer currently support for converted DNG
> files in Optics Pro or any of our other produces. Though DNG converted
> files contain the original RAW file information, the information is no
> longer exactly as the camera body wrote it. RAW files are encrypted by
> their manufacturers, and in order to use the information in these files, we
> must decrypt the information using precise information provided to us. To
> do this, it is critical that the information in the file be exactly as it
> was written by the camera, down to the exact location of the data within
> the file. When you convert the original RAW file to the DNG format, the
> decryption information we have fails because the data has been moved.
> Optics Pro is a far more precise program than the other programs you noted,
> so it is imperative that all information be as the camera originally wrote
> it to your camera card. Therefore, we currently do not have any immediate
> plans to offer converted DNG support for input files.  DxO Support Team "
> Unquote
>
> Cheers
> Jayanand
>


Replies: Reply from hjwulff at gmail.com (Henning Wulff) ([Leica] DNG)
In reply to: Message from robert.rose at mac.com (Robert Rose) ([Leica] DNG)