Archived posting to the Leica Users Group, 2005/04/27
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]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 >?galit?, libert?, 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 > >