[filmscanners] Re: Artixscan 1800f resolution?

["Tony Sleep" <TonySleep@halftone.co.uk>]

Simon Lamb wrote:

>  Is this scanner scanning at 1800ppi
> or 3600ppi.  I normally take the lower number to work out if I will get
> enough to print at the sizes I require at 300dpi, and the lower number is
> normally the one stated first.  Is this scanner scanning at 1800ppi or
> 3600ppi?

It's scanning at 1800 ppi, but with 0.5pel stepping in the movement of the
sensor,  hence 3600ppi on that axis. This gives a little more real
information and a lot more marketing advantage <g>/ The result will be a
scan interpolated to 3600x3600ppi. Which isn't necessarily disastrous, but
all other things being equal, cannot match a genuine, optical res of
3600x3600ppi. Really you need to assess the scans to determine whether they
meet your needs, but the same would also be true of a scanner doing a
'real' 3600x3600ppi.

Regards

Tony Sleep - http://www.halftone.co.uk
Online portfolio & exhibit + film scanner info & comparisons
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