I agree, you really just have to try and run a test through with a representative page from the document with fine detail and see how it comes out ... I have found that even fairly fine detail reproduces okay with a 300 DPI scan ... there's no need in scanning with extraneous bit depth and then you start to get people complaining about file sizes :O
Best, Sean On Tue, Aug 18, 2015 at 9:48 AM, Alexandre Souza < alexandre.tabaj...@gmail.com> wrote: > I have many schematics scanned in 300dpi and they are great even for a3 > printing. Take a lookk at "esquematico de informatica cce" (google it) as > an example... > Em 18/08/2015 10:36, "Tothwolf" <tothw...@concentric.net> escreveu: > > > On Tue, 18 Aug 2015, Shoppa, Tim wrote: > > > > I certainly feel bitsavers is a good model, and although I'm physically > >> not too far away from the stuff, I'm not sure I have much to offer other > >> than disk space on a server for staging. > >> > >> http://ascii.textfiles.com/archives/4695 > >> > >> (previous link: http://ascii.textfiles.com/archives/4683 ) > >> > > > > The problem I've found with scans is that even at 600 dpi you lose detail > > necessary to make use of a lot of the material in these types of manuals > > (especially parts designations and values on schematics). It is amazing > > just how high the print quality is for many of these 1950s/60s/70s > manuals. > > >