On 19/10/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > I've got a mate telling me a high res drum scan of a 6x7 neg would only be > 10MB in > TIFF format. Surely it would be in the hundreds of MB neighbourhood wouldn't > it?
It's easy enough to work out, the official frame size for the P67 is 55mm x 70mm so if scanned at 4000dpi (Nikon LS-8000-9000) it would be 55*4000/25.4 x 70*4000/25.4 = 95,480,191 pixels. So file size for an 8 bit file would be 3* 95,480,191 = 286,440,573 bytes or 273 MB for an uncompressed tiff 6400dpi (Epson V700) it would be 55*6400/25.4 x 70*6400/25.4 = 244,429,289 pixels. So file size for an 16 bit file would be 6* 244,429,289 = 1,466,575,733 bytes or 1.36 GB MB for an uncompressed tiff So unless the drum scan is pretty lame I guess he's incorrect. -- Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://home.swiftdsl.com.au/~distudio//publications/ Pentax user since 1986, PDMLer since 1998 -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
