You are in 12-bitland until you actually open the image in Photoshop. Everything done in Adobe Camera Raw is 12-bit and you then choose to open it in Photoshop as a 16-bit or 8-bit file. Herschel --- Veli Izzet Cigirgan <veli.izzet@xxxxxxxxx> wrote: > Herschel, > > When in ACR you are in the 8-bit mode, does this mean that you are doing > 8-bit manipulations IN the ACR, or does it mean that you are doing > manipulations in the native 12-bit mode and go down to 8-bit mode when going > into PS after RAW conversion? > > The same question stated in a differerent way for 16-bit. At what step in > the RAW conversion process does the image become 16-bit? > > Veli Izzet > > _____ > > From: owner-photoforum@xxxxxxxxxxxxxxxxxxxxxx > [mailto:owner-photoforum@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of Herschel Mair > Sent: Tuesday, August 29, 2006 3:40 PM > To: List for Photo/Imaging Educators - Professionals - Students > Subject: Re: Film or Digital? The Eternal Question! > > > But Bob, that IS my point! > Once you've done the fundamental stuff in whatever raw converting software > takes your fancy, then the way to go forth is via 8-bit. > > Qkano <wildimages@xxxxxxxxxxx> wrote: > > > But alas this is not so and I have found by experiment that it makes no > difference if I convert my 12-bit Raw file to 8-bit or > 16-bit, PROVIDED that in the end I convert the 16-bit to 8-bit anyway. > > Sorry to repeat, but in a way you've skipped the absolutely key step. > > That in converting from RAW to 8 bit you have already taken decisions (or is > the conversion totally automated?) about what > information from the raw file to use. You've done most of the major > adjustment work already. It's therefore no surprise that there > is no (sic) difference in a 16-bit and 8-bit workflow from that point on. > > I know you're not just a wee snapper - and I agree that once a picture is > nearly right (you've got the white and black points nailed > and the tones balanced across the range) there's probably little advantage - > by then though the work's been done. > > Then again: I do wonder (speculate) about the future. > Can we really see no difference or is that because we have not the 16-bit > output hardware to compare it with? If it ever arrives > would anyone regret not having future proofed ... > > I really don't know. > > > Bob > > > > > > > Herschel Mair > Head of the Department of Photography, > Higher College of Technology > Muscat > Sultanate of Oman > Adobe Certified instructor > > + (986) 99899 673 > > www.herschelmair.com <http://www.herschelmair.com/> > > > _____ > > Yahoo! Messenger with Voice. Make > <http://us.rd.yahoo.com/mail_us/taglines/postman1/*http://us.rd.yahoo.com/ev > t=39663/*http://voice.yahoo.com> PC-to-Phone Calls to the US (and 30+ > countries) for 2¢/min or less. > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.1.405 / Virus Database: 268.11.6/430 - Release Date: 28.08.2006 > > > Herschel Mair Head of the Department of Photography, Higher College of Technology Muscat Sultanate of Oman Adobe Certified instructor + (986) 99899 673 www.herschelmair.com __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
