On Sat, Oct 26, 2013 at 07:51:57PM -0400, David Parsons wrote: > Still not possible, since DNG is a representation of RAW data before > it has been demosaiced. > > What's wrong with simply using .PSD files?
Because when I apply the exposure corrections to the .PSD file all of the data in the shadows has been lost, and when I increase the exposure I get the same bizarre high contrast image I would from a JPEG. The image had both sunset lit clouds and rocks in shade, so it had a tremendous dynamic range. For each particular frame, I can process it in lightroom to get something reasonable. Let's take three pixels (in one color) shot at three different exposures. If you had a 16 bit sensor the values would be (in hex, because it's easier to do the math) FFAA 0888 0055 We'll take three eight bit readings: 00FF 0008 0000 -8 stops 00FF 0088 0005 0 stops 00FF 00F8 0055 +8 stops It should be able to do the math, based on the exif data and give me FF00 0800 0000 FF00 0880 0050 FF00 0F80 0055 Then, throwing way the clipped values, that should get me FF00 0880 0055 Giving me an image with 16 bits of range and 8 bits of precision. Instead, what it is doing is the equivalent of raw data that is FFAA 0888 0555 and giving me a pano with 00FF 0008 0000 > > On Sat, Oct 26, 2013 at 7:35 PM, Larry Colen <l...@red4est.com> wrote: > > On Sat, Oct 26, 2013 at 06:51:43PM -0400, David Parsons wrote: > >> You can't do that. Creating the panorama requires that PS save the > >> file as something other than RAW. There's no such thing as a panorama > >> RAW file because there are no panorama sensors. > > > > OK, let me rephrase that, I want to take several DNGs can combine them > > into a DNG panorama with all the data of the panos. > > > >> > >> After saving the file and having it reimport into LR, you can use any > >> of the exposure adjustments on the file. > >> > >> On Sat, Oct 26, 2013 at 6:46 PM, Larry Colen <l...@red4est.com> wrote: > >> > I finally got things to the point that I could click on my photos, > >> > click on edit in-> merge as a panorama in photoshop and it would > >> > collect them all into one, merged panorama. However, not only does > >> > it throw away all of the adjustments that I did in lightroom, the > >> > psd file I get back, despite saying that it's a 16 bit file, seems > >> > to only have 8 bits of data, because all of the information in the > >> > shadows is lost. > >> > > >> > I can't even dial in my adjustments in camera raw, because the > >> > data seems to have been lost before it was combined into a panorama. > >> > > >> > What I *want* is for it to take the raw files, combine those into > >> > a panorama and return a panorama, high resolution raw file that I > >> > can then edit in lightroom. > >> > > >> > > >> > -- > >> > Larry Colen l...@red4est.com > >> > http://red4est.com/lrc > >> > > >> > > >> > -- > >> > PDML Pentax-Discuss Mail List > >> > PDML@pdml.net > >> > http://pdml.net/mailman/listinfo/pdml_pdml.net > >> > to UNSUBSCRIBE from the PDML, please visit the link directly above and > >> > follow the directions. > >> > >> > >> > >> -- > >> David Parsons Photography > >> http://www.davidparsonsphoto.com > >> > >> Aloha Photographer Photoblog > >> http://alohaphotog.blogspot.com/ > >> > >> -- > >> PDML Pentax-Discuss Mail List > >> PDML@pdml.net > >> http://pdml.net/mailman/listinfo/pdml_pdml.net > >> to UNSUBSCRIBE from the PDML, please visit the link directly above and > >> follow the directions. > > > > -- > > Larry Colen l...@red4est.com http://red4est.com/lrc > > > > > > -- > > PDML Pentax-Discuss Mail List > > PDML@pdml.net > > http://pdml.net/mailman/listinfo/pdml_pdml.net > > to UNSUBSCRIBE from the PDML, please visit the link directly above and > > follow the directions. > > > > -- > David Parsons Photography > http://www.davidparsonsphoto.com > > Aloha Photographer Photoblog > http://alohaphotog.blogspot.com/ > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- Larry Colen l...@red4est.com http://red4est.com/lrc -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
