Godfrey DiGiorgi wrote: >On Mar 7, 2006, at 10:48 AM, Mark Roberts wrote: > >> So I was recently delighted to notice that if I use Camera RAW to >> convert PEF image into a JPEG in Photoshop, the resulting JPEG >> contains all the original EXIF data, including lens type. > >DNG Converter preserves all the data. Extracting the .xmp data from >a .PSD file after RAW conversion with "File->File Info..." command, >here's what you get, as example: > >... > <rdf:Description rdf:about="" > xmlns:aux="http://ns.adobe.com/exif/1.0/aux/";> > <aux:LensInfo>280/10 1050/10 32/10 45/10</aux:LensInfo> > <aux:Lens>smc PENTAX-FA 28-105mm F3.2-4.5 AL[IF]</aux:Lens> > <aux:LensID>4 38</aux:LensID> > </rdf:Description> >... > >xmp is not EXIF, it's much more complete than that.
It's true! And it's in an XML format. Hooray for compatibility! The odd thing is, the lens info doesn't show up in Bridge *until* you convert the DNG into a PSD. Then it appears with both the DNG and the PSD files. And you can delete the PSD and Bridge still shows the lens info for the DNG. If you just keep the DNG but don't convert it into anything else, the lens info stays hidden. Weird (and a trifle inconvenient). BTW: I'm still trying to figure out where they hide the lens information in the JPEG file when you create it from a PEF in Camera Raw. It's definitely in the JPEG somewhere, but I haven't been able to find it in a hex editor yet. Not that it really maters but I *am* curious.
