[Leica] Photoshop Altamont -- some questions for the wisdom of the LUG.

[passaro.vince at gmail.com (Vince Passaro)]

yes further research showed that what I'd found was a late 2008/early 2009
"update" although the page said 2010.

I assume since my CS4 was  bought three months ago I have the latest ACR but
I'll investigate.

All I know is I take "raw" images with the G1 and neither Bridge nor PS want
to do a thing with 'em.

V

On Tue, Mar 23, 2010 at 1:21 AM, Bob Adler <rgacpa at yahoo.com> wrote:

> Try ACR 5.6...
>  Bob Adler
> Palo Alto, CA
> http://www.rgaphoto.com
>
>
>
>
> ________________________________
> From: Vince Passaro <passaro.vince at gmail.com>
> To: Leica Users Group <lug at leica-users.org>
> Sent: Mon, March 22, 2010 10:12:40 PM
> Subject: [Leica] Photoshop Altamont -- some questions for the wisdom of the
> LUG.
>
> Well.
>
> I fooled around until far far too late an hour last night and learned some
> things, one of which is CS4 can't open G1 raw files. Further, when I opened
> a few G1 jpegs in CS4 Camera Raw and messed around with them -- I even
> taught myself how to use lasso tool, how to smooth out my terrible efforts
> with lasso tool, and reduce the glare on a particular portion of my photo
> that had light bouncing off some glass -- these files saved as anywhere
> from
> 25MB to 60 (!!!) MB in size. To mount them on the lug gallery I had to save
> for web, which made them into 5MB tiff files but also stripped away some
> layers of the work I'd done and rendered what had been clear and deep now
> noisy and fake looking.
>
> But I posted them anyway for your helpful comments and instructions.
> http://gallery.leica-users.org/v/toast+eatin_+bog+man/Photoshop+Altamont/.
> Two 'Photoshopped" files and one prior for comparison.
>
> Meanwhile, I went looking for why CS4 could nae open me wee G1 raw files,
> and so found an Adobe update/patch to download (Camera Raw 5.2, equiv to
> whats in the LR 2.2 beta I believe), downloaded it, but also read the
> following asterisk which I wonder if one of you might take a stab at
> explaining to me. It appears to indicate that the D-Lux-4 and various
> Panasonic models (two of which I own, happy me) have a proprietary raw
> program which Adobe cannot really deal with yet so they advise one not, for
> now. If one does, files will be three times the size of other converted raw
> files... because of a tripling of the mosaicing or demosaicing or however
> it
> works. Any comments on this wil be MOST helpful. Here's the text:
>
> **With the release of Camera Raw 5.2 (and upcoming release of Adobe
> Photoshop? Lightroom? 2.2), there is an important exception in DNG file
> handling for the Panasonic DMC-LX3, Panasonic DMC-FX150, Panasonic
> DMC-FZ28,
> Panasonic DMC-G1, and Leica D-LUX 4. For those who choose to convert these
> native, proprietary files to the DNG file format, a linear DNG format is
> the
> only conversion option available at this time. A linear DNG file has gone
> through a demosaic process that converts a single mosaic layer of red,
> green, and blue channel information into three distinct layers, one for
> each
> channel. The resulting linear DNG file is approximately three times the
> size
> of a mosaic DNG file or the original proprietary file format.
>
> This exception is a temporary solution to help ensure that Panasonic's and
> Leica's intended image rendering from their proprietary raw file format is
> applied to an image when converted DNG files are viewed in third-party
> software titles. The same image-rendering process is applied automatically
> in Camera Raw 5.2 and Photoshop Lightroom 2.2 when viewing the original
> proprietary raw file format.
>
> In a future release, Adobe plans to update the DNG specification to include
> an option to embed metadata-based representations of the lens compensations
> in the DNG file, allowing a mosaic DNG conversion. In the interim, Adobe
> recommends only converting these files to DNG to allow compatibility with
> third-party raw converters, previous versions of the Camera Raw plug-in, or
> previous versions of Photoshop Lightroom.*
> .
>
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>
>
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>
>
> _______________________________________________
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