Comments on: Converting Digital Camera Raw Files to the Dng Format using Adobe Photoshop Lightroom

By: David Marx

David Marx — Sat, 11 Feb 2012 20:44:08 +0000

Dear Parviz Pour,

I am afraid that I have no experience with the JOBO photoGPS system. Can you see the GPS data for these files using other software like the Adobe Bridge? Also, I would not expect to see the DNG files on Google Earth. DNG is a raw digital image format. Google Earth uses the gpx or kml formats for its data.

For better advice I would check with Lightroom -> GPS master Jeffery Friedl.

–
David Marx

By: Parviz Pour

Parviz Pour — Sat, 11 Feb 2012 19:59:54 +0000

I am using JOBO photoGPS in LR3. Although all photos are tagged, I do not see GPS in EXIF but see the name of the area I photographed in Keyword section. The photos are converted to DNG and do not open by Google Earth.

By: David Marx

David Marx — Tue, 07 Feb 2012 05:59:02 +0000

Dear Dan Moore,

The files that you converted from cr2 to dng probably live in the folders where the cr2 files used to be. Perhaps a better way of saying this would be to state that you have simply re-wrapped the old files with the new ones that carry the .dng extension. This is a guess since there three ways to convert from cr2 to dng using Adobe Photoshop Lightroom. If you did the conversion on export then the new files might live someplace totally different…

iPhoto is storing a completely separate copy of your .cr2 files no matter what you have done in Lightroom. iPhoto and Lightroom are completely separate and they do not speak the same “language.” The files thqt you originally imported into iPhoto are inside the iPhoto Library package contents.

–
David Marx

By: Dan Moore

Dan Moore — Thu, 02 Feb 2012 01:49:51 +0000

Hi David,
I have followed your tutorial and converted cr2 files to drg in Lightroom.
For now, my photos reside in the Mac hard drive.
My question is: after I have converted them to drg, they are still cr2 in iPhoto. Where am I storing my drg?

Thanks, Dan

By: David Marx

David Marx — Thu, 08 Dec 2011 20:59:23 +0000

Dear Marcel Tan,

Remapping the Pentax DNG to an Adobe Photoshop Lightroom DNG is a good idea. They are both the same format but Pentax is not using Adobe’s latest file technology. The reduction in file size is just one of the subtle differences between the latest DNG version and the older version that is used within your camera.

I don’t have a Pentax so I cannot be certain but I believe that the PEF files are even larger than the camera generated DNG images. If my suspicion is correct, and if you are not using any other software program for raw file enhancements, then I can’t see any advantages to recording new images in the native PEF format. Other than file size though I cannot see any harm in shooting PEF and then converting to Adobe’s latest DNG implementation when your files are Imported into Adobe Photoshop Lightroom.

–
David Marx

By: Marcel Tan

Marcel Tan — Thu, 08 Dec 2011 13:55:26 +0000

David,

I just bought a Pentax K5 and plan to import DNG, produced directly by the K5, into Lightroom. A K5 DNG file is about 22-24 MB. When I convert with the Adobe RAW to DNG Tool the size shrinks to about 17-18 MB. That is about 5 MB smaller or more than 20%. Is there any reason for not doing this DNG to DNG conversion? Or should I do PEF -> DNG?

-Marcel

By: David Marx

David Marx — Mon, 05 Dec 2011 20:16:09 +0000

Dear Robert,

I don’t know of any easy and efficient way to make the Reset button take you back to anything other than the original image capture settings. You might be able to find an adequate alternative using the snapshots feature. I can envision a routine where Jeffery Freidl’s Snapshot on Export Plug-in speeds this workaround up but its not a direct solution to your troubles.

Best of luck,

–
David Marx

By: Robert

Robert — Sun, 04 Dec 2011 03:41:14 +0000

HI
I have an interesting one that I am trying to solve well at least for my workflow it is.
Let me start by saying that DNG is the format I want to use, but here is the catch and problem I’m trying to solve.
I outsource my color correcting so it makes sense to send this to my vendor as Nikon Nef files. This helps because they then only need to email the xmp files back to me. So far so good easy process. Noe this is were it gets tricky and I am not even sure it can be done. I wan to convert my Images to DNG, but the catch is I do not want to keep all the old XMP info. I want to inbed the color corrections to a point that after conversion and reimporting to LR if I hit the reset button it resets to the imported DNG with color corrections and NOT to the original out of camera XMP. The reason I wan to be able to do this is that in a studio with lots of staff I know that at any time we can RESET and still have color neutral images acroo the board. I know we can use the history tab but it is so much easier to hit reset. For eg if one of my staff is prepping images from a wedding and applying presets to a bunch of images, if i Check it before it goes out to a client and I don’t like the preset chosen I can simple hit the reset button and start again for the Colour corrected DNG. Hope this makes sense and that there is someone out there that can help.
Rob

By: David Marx

David Marx — Fri, 14 Oct 2011 14:39:17 +0000

Dear Laura Abbott,

You can change your CR2 files to DNG at any point within Lightroom. Check out the second video tutorial in this post.

–
David Marx

By: Laura Abbott

Laura Abbott — Fri, 14 Oct 2011 09:29:19 +0000

Hi, I am new to lightroom and just started using Lightroom 3. I am well aware of DNG and this is my preferred file format. However, when I first imported files into lightroom for the first time I couldn’t spot how to convert them into DNG on import and have since been doing some alterations with the CR2 files and adding keywords etc for the metadata in ‘Develop’. Can I still convert these now altered files into DNG or will the alterations made be lost?