>>>>> "Amit" == Amit Mukherjee <[EMAIL PROTECTED]> writes:
Amit> Can anyone explain to me what optical resolution means. I am
Amit> looking at the product specification of an Epson scanner and
Amit> it says that the optical resolution is 1600x3200 dpi. What
Amit> does this mean ?
Optical resolution is the real resolution of the scanner. Anything
higher is interpolated and you can do at least as well in the GIMP as
the scanner will do.
Generally, I don't count on anything higher than the lower number;
i.e., for your case, I treat 1600x3200dpi as 1600dpi.
And to avoid the whole problem with asymmetric resolution, I just
bought an Epson Perfection 2450 Photo scanner with 2400dpi optical
resolution. We used to have an (old) Scanmaker E3 with 300x600dpi
optical resolution, but I found trying to operate it at 300x600
instead of 300x300 just caused little jaggies in the results; I don't
think the stepper motors were doing a good job position the platform.
Newer scanners should do better, but I still prefer the scanners with
resolution the same in both directions.
roland
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Roland B. Roberts, PhD RL Enterprises
[EMAIL PROTECTED] 76-15 113th Street, Apt 3B
[EMAIL PROTECTED] Forest Hills, NY 11375
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