On Thu, 6 Sep 2001 10:08:20 +1000 =?iso-8859-1?Q?Rob=20Geraghty?=
(harper@wordweb.com) wrote:
> Odd. I thought Tony said the SS4000 aliased less than 2700ppi scanners.
> Can someone explain this to me? ISTM that people are seeing grain at
> 4000ppi
> and calling it aliasing?
It is utterly dependent on the film - not only grain size, but the
sharpness of individual dye clouds or grains, and the degree to which they
overlap. I have no grain aliasing at all that I can see with Fuji Superia
100, 400, 800, but have seen some with rather overexposed 200. I don't use
Kodak colour neg much, but never saw any problems with PJM640 or 400.
In general, the higher the pixel density the less often you will encounter
grain aliasing and the less destructive will be its effects.
Regards
Tony Sleep
- Online portfolio & exhibit; + film scanner info
& comparisons
