[Leica] M9 DNGs and Adobe

[rgacpa at yahoo.com (Bob Adler)]

I noticed this issue when you had me upgrade LR to 2.6.1 Geoff. :-)
I still use LR Camera Raw, but when going to edit in CS4, I "Let Lightroom 
Do Rendering". Any problem with this approach?
Best,
Bob
 Bob Adler
Palo Alto, CA
http://www.rgaphoto.com




________________________________
From: Geoff Hopkinson <hopsternew at gmail.com>
To: Leica Users Group <lug at leica-users.org>
Sent: Thu, March 11, 2010 5:38:58 AM
Subject: [Leica] M9 DNGs and Adobe

For anyone interested:
M9 users found that some DNG files caused crashes in Photoshop CS4 and
Lightroom 2.6 (a particular RGB number combination). Adobe found a bug
introduced when late changes were made to the Raw processing engine to
improve rendition of M9 files. The current fix for LR2.6 users is to
download and use LR2.6.1. The only change is the elimination of that bug and
it is only relevant for M9 users. The problem does not occur with the LR3
beta (which also has significantly better rendition, noise reduction and
sharpening powers).

I have recently done a complete new clean install on a new sytem (64 bit,
Yeah!)  and am only just catching up. I have found that the bug exists in
Adobe Camera Raw 5.6 as well, however there is no ACR5.6.1 available
currently. Adobe has acknowledged the issue with both LR and ACR and reports
that a fix will be available shortly. In the meantime I need to stay out of
Adobe Camera Raw with M9 files and as a minor issue, trying to edit a DNG in
Photoshop (from LR) reports the mismatch in versions as well, once you
install the LR2.6.1 although the cure is not yet here. I don't have the
LR2.6RC (release candidate) any longer. It did not exhibit the crashing
behaviour but I don't know if version matching was an issue there.

Personally I am looking forward to the release of LR3 and I hope a cheap
upgrade. Mant M9 owners tht already own LR are waiting to find out if they
will be able to use their entitlement to download LR to receive LR3. We
shall see.
Incidentally, the X1 already has a standard profile (usable in both
applications of course) although the S2 does not. Neither X1 DNG files  nor
those from the S2 provoke the bug.

Cheers
Geoff
http://www.pbase.com/hoppyman

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