On 8 Jan 2001, at 11:55, John Francis wrote:
> Rob Studdert wrote:
> >
> > Having used the Polaroid SS4000 (my third film scanner over 6 years) I might
> > just add that from my observations I estimate that there is at least twice the
> > detail available in most =<100ISO films that the SS4000 can resolve. I have
> > come to this conclusion after comparing many 4000DPI scans to the actual film
> > under 40x optical magnification.
>
> That's pretty close to my impression, too. But the SS4000 doesn't
> deliver a real 4000ppi, either - there is a certain amount of bleed.
> Compare a scan from the SS4000 with a 4000ppi drum scan.
> It's a pretty nice scanner, though - I'm still considering one.
>
> But you have to be trying pretty hard to get that information out of
> the film - you need a really good lens, and a rigid camera plateform.
The last example that I can say I compared with any detail was a K25 slide
shot using the Contax G45mm at ~f5.6 hand held in late afternoon light (so
the shutter speed couldn't have been that high). My SS4000 is pretty good,
there isn't much inter-pixel bleed but in any case I couldn't believe how much
more detail was in the slide. It would have to be fairly dense digital image to
come close IMHO :-)
Cheers,
Rob Studdert
HURSTVILLE AUSTRALIA
Tel +61-2-9554-4110
Fax +61-2-9554-9259
UTC(GMT) +10 Hours
[EMAIL PROTECTED]
http://www.ozemail.com.au/~distudio/publications.html
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