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filmscanners: Re: Vuescan blue anomaly

In a message dated 7/21/2001 9:14:18 AM EST, TonySleep@halftone.co.uk writes:

> I have finally managed to catch VS red-handed WRT it's occasional excess 
>  highlight blue in Superia 400 scans. I had thought this was an anomalous 
>  behaviour to do with the films 4th layer response under some shooting 
>  circumstances. It cannot be as the problem did not occur on one frame, 
>  did on the next with the exact same settings. Shutting down VS and 
>  restarting clears the problem.
>  Example scans at www.halftone.co.uk/tech/filmscan/vuescan/vsblue.htm

I could probably find the problem if you:

1) Turn on "Files|Output log file"
2) Turn on "Files|Output raw file"
3) Set resolution to minimum
4) Capture bad scan again
5) E-mail vuescan.log and scan0001.tif to me

Having the raw scan file would tell me if the problem
is with the acquisition of the raw data from the
scanner, or in the processing of the raw data to
produce the crop file.  Having the log file would
help me debug the problem if it turns out to be in
the original acquisition of the scan data.

Ed Hamrick


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