Sounds like a lot of work. I can't fault the scans i get from Epson Scan even 
with pixel peeping scrutiny. But I ill attempt this as an experiment. In brief, 
you're saying you do a flat scan in Vuescan then use Vuescan tools to correct 
it? Where in Vuescan do you choose "raw workflow?""
On Oct 25, 2013, at 9:08 PM, steve harley <p...@paper-ape.com> wrote:

> on 2013-10-25 12:17 Paul Stenquist wrote
>> With the Epson V500, there was little fine control of the various functions. 
>> For example, when trying to set black point movement of the control would 
>> provide almost no discernible difference, but when the control was pushed to 
>> a certain point, the whole thing would fall off the cliff and a drastic 
>> change would be generated. Same thing with low and high curves. Plus after 
>> tweaking the preview, the resulting scan wouldn't match.
> 
> tip: tweaking the preview is not especially accurate; instead i would suggust 
> using Vuescan's "raw" workflow; this gathers the the "uncorrected" data from 
> the scanner, essentially a 16-bit TIFF with flat gamma curve; this data can 
> then be interactively reprocessed in VueScan to optimize the parameters 
> without the need to rescan the source (saving a lot of time); if you are 
> doing a batch, the optimized parameters can then be saved as a preset and 
> automated
> 
> or you can save the raw data as TIFF (or DNG, but not much point in that) and 
> use Lightroom or whatever to do (and/or automate) your adjustments
> 
> Epson's drivers may now be okay, but my history (going back to early 90s) is 
> to distrust the proprietary drivers that are provided through (not by) Apple; 
> too often they have added unwanted background processes or even caused 
> system-wide problems; last i tried were Canon's mid-2000s drivers, which had 
> nasty USB side-effects and i removed them quickly
> 
> 
> 
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