> ... If I scan at 8 bits, the file is
> half the size of a file scanned at 16 bits. The information is just
> not there to convert into 16 bit. Perhaps there is something I don't
> know about here?
Hi

Converting an 8 bit file to 16 bit produces a bigger file with the same
information in it. There is no difference.

Think of a set of integers 1 to 10 inclusive (1,2 ... 10), then think of the
same numbers with 2 decimal places precision (1.00, 2.00 ... 10.00) the
numbers are the same, but in the second set you can have all sorts of
intermediate values (2.66, 2.67 etc)  It is similar with 8 and 16 bit -- the
16 bit allows you to have lots of intermediate values.

The benefits -may- come when you start manipulating the file. I've not tried
it, but it might reduce posterisation or some other artefacts that can
appear for example if you push curves too far.  Has anyone quantified the
differences?

bye for now   

Keith Cooper

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