On 2 Dec 2005 at 8:37, Cotty wrote: > >I'll give it a try. I'm just basing that comment on what adobe has said > >about interpolation in RAW vs. in a converted file mode. To be honest, > >I've never shot any jpegs with either of my Ds. I wanted to be totally > >in synch with working in RAW, so I never even tried it. But I will. > >Might be fun. > >Paul > > Okay folks, place those bets. > > I have a fiver on Paul not being able to tell the two apart (no cheating > now Paul ;-) > > This is going to be interesting.....
I'm, flying blind here, this is the last email I've received from the PDML mail server, nothing this morning and usually Sat mornings there is a flood of mail. Anyhow I believe that there is definitely a difference between simply upsizing a jpeg and oversampling during RAW conversion, they are completely difference concepts. I don't think a print is necessary to prove this and obviously bringing a print into the mix means that you have to also consider the limitations that the print brings to the equation, the differences are subtle and can only be noticed when using good glass under optimal conditions. I can provide examples where a 3008 x 2008 pixel file generated by ACR and then upsized to 6144 x 4101 in PS using straight bicubic resampling produces an inferior image to the same RAW image directly converted as a 6144 x 4101 file. It's subtle but at 1:1 it's visible (IOW you'd see it plainly if the image was printed at 150DPI ie 70 x 104cm) Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications/ Pentax user since 1986, PDMLer since 1998
