[filmscanners] Re: Epson Photo 2450

["Ian Jackson" <Ian_Jackson@blueyonder.co.uk>]

Alessandro,

I thought that with a flatbed one had to find out whether the scanhead
used 1 or 3 CCD so that you could decide if dividing the resolution by
3 was necessary to compare with any medium format film scanner?

This is one reason why I have been waiting for the Minolta Scan Multi
Pro price to come down rather than go for the 2450.

Ian
----- Original Message -----
From: "Alessandro Pardi" <alessandro.pardi@inferentiadnm.com>
To: <Ian_Jackson@blueyonder.co.uk>
Sent: Friday, January 25, 2002 10:44 AM
Subject: [filmscanners] Epson Photo 2450


Hi all,

I'm considering the (highly regarded) Epson Photo 2450 to scan 6x7
negatives. I already got positive feedback about this scanner, but
have a
few more questions:

1) Are there any grain aliasing problems? This was definitely an issue
with
my Nikon LS-30 (2700dpi), and no longer is with my current Canon FS
4000
(4000dpi): given that the specs of the Epson are 2400x4800 dpi, I
wonder
which number is more relevant... For the record, I'll probably be
scanning
mostly Portra 400BW.
2) I'm probably dense, but this 2400x4800 dpi resolution makes me a
bit
uneasy. I understand that the micro-step technology allows for *very*
small
movements in one direction thus resulting in the higher figure, but
I'm led
to think that if I scan a 6x6 negative with 2400dpi on the x axis and
4800
on the y axis I should get an image with a 1:2 ratio, rather than 1:1.
Does
this mean that the scanner *always* interpolates either up to 4800 dpi
or
down to 2400?
3) The 2450 is less than half the price of the 1680, which has less
resolution (1600x3200 dpi), the same format (A4), and no other
apparent big
enhancement that could justify the cost. What am I missing here?

Thanks in advance,
Alessandro Pardi

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