[filmscanners] Epson Photo 2450

["Alessandro Pardi" <alessandro.pardi@inferentiadnm.com>]

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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