Archived posting to the Leica Users Group, 2005/04/27
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Scott, I usually save in LZW-compressed TIFF and uncompress before I have to use an application that does not support it. Using Photoshop in batch mode helps when you have to process many pictures. Also, I do backups on DVDs. You can get fast writers cheap these days. I generate thumbnails and store them in addition to the pictures. BTW, once I have corrected leveling and colors, in my experience, storing using 8bit is good enough. Best Regards, Roland. --- Scott McLoughlin <scott@adrenaline.com> wrote: > I have the same problem with tiff files of large hi res scans. A 4000 > DPI scan > saved as a 14 bit (Nikon V) Grayscale TIFF is something like 41MB per > frame. > A roll of film is over 1GB and won't even archive to a CD, perhaps a more > serious issue for me than HD space (although, that too quickly becomes an > issue). > > Different applications have different problems with TIFF lossless > compression > schemes (zip, lzw), so that doesn't present itself as a viable option. > > What's worse, though, is that JPEG is 8 bit, so I loose alot of information > before even JPEG compression kicks in. > > The whole thing is odd to me, I recall the days of PCX, and we've come a > long > way since then. But why isnt' there a universally supported lossless > compressed > format that supports 16 bit gs and 48 bit color? Really wierd to me. > > What do other folks do to archive hi rez scans of rolls of film? > > Scott > > SonC@aol.com wrote: > > >Hmmm. I don't save in TIFF as it takes up too much real estate on my > >drives. I save as high quality jpeg, usually around 300 ppi (Negs, of > >course get a > >much higher ppi). > > > >Then if I edit the shot, I save it as another name , preserving the > >original > >scan. Jpeg gets lossy if you save it over and over, so always edit a > >duplicate of the original scan. > > > >I also do any unsharp masking after the resizing and before I "save for > >web," remembering to tick the box "save icc profile." > > > > > >Regards, > >Sonny > >http://www.sonc.com > >Natchitoches, Louisiana > >Oldest continuous settlement in La Louisiane > >égalité, liberté, crawfish > > > > > > > >In a message dated 4/26/2005 11:41:28 P.M. Central Daylight Time, > >nathan.wajsman@planet.nl writes: > >Jay, > > > >You should always scan at the maximum optical resolution of your scanner > >and save the images as 16-bit TIFF files. Do all your corrections and > >sizing at this level, and then downsize for web display as the very last > > > >step. > > > >Nathan > > > >Jay wrote: > > > > > > > >>This is definitely a newbie question - what res/dpi do you scan your > >>35mm > >>negs for maximum effectiveness? > >>File size is not an issue. > >> > >>Jay Ignaszewski > >> > >> > > > > > > > >_______________________________________________ > >Leica Users Group. > >See http://leica-users.org/mailman/listinfo/lug for more information > > > > > > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > FeRider (R.) __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com