Digital BW, The Print

Robert Rock wrote:
> Also make sure the "focus" setting is set to "O.0". Some Epson scanners have
> a slight offset in focus to accommodate the distance from the glass to the
> plastic carrier (usually adjusted in the software interface). At the very
> least, most Epson's have 2 settings, "0.0" and "2.5", or something similar.
> You want the scanner to focus at the glass, not beyond.

Will be difficult with the fix focus lenses of the Perfection 
range :-) no such setting in the software either.

Depending on the model the focus should be fixed at 1mm above 
the glass but often is as much as 1.5 mm off so it has to be 
measured and the holders adapted. The V700-V750 have the focus 
somewhere between 2.5 and 3.5 mm for the higher resolution 
lens and 0.5 mm above the glass for the wider area lens. If QC 
was good, otherwise it can be up to 4 mm for the first lens. 
My motto is: you want the focus where the emulsion is and 
preferably away from the glass with a mask in between to keep 
flare down.


Met vriendelijke groeten,Ernst


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