Originally posted by Igor123 I'm not sure I understood that completley. Does it that mean that the correction info will be embedded in the raw DNG as well so that for example LR will have the CA-settings altered when the file is read, or is it just pentax photolab that it will work for?
This is a
very good question.
AFAIK (and my response is
not meant to be affirmative!), the following holds true:
- Corrections applied in body for JPG (takes ~4s per image extra processing time).
- Corrections applied by PPL in raw processing.
- Corrections applied by Silkypix in raw processing (same raw converter). (*)
- Corrections applied by LR2 in raw processing. (*)
LR2 included a hidden corrections module late 2008 (upon pressure from Panasonic, it seems) and secretly applies corrections based on data written to the raw file. John C. from Pentax mentioned that he
believes that LR treats the correction data as written by K-7. This is likely because Silkypix and LR expect the same kind of raw file meta data. Adobe's DNG converter applies the same corrections. Simple test: If the converted DNG files are 3x bigger, then the corrections had been applied.
All claims marked (*) are my own deductions and may prove false.
--
Source info:
It all can be deduced from this remark on Adobe web pages:
Quote: There is an important exception in our DNG file handling for the Panasonic DMC LX3, Panasonic DMC FX150, Panasonic DMC FZ28, Panasonic DMC-G1 and Leica D-LUX 4. For those choosing 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 ensure that Panasonic 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 and in Lightroom 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 Lightroom.
[source:
http://www.adobe.com/products/photoshop/cameraraw.html]
The remark only applies to Panasonic and what is meant are the vignetting, CA and lens distortion info. But it seems that all files which carry the corresponding information are treated alike.