Digital BW, The Print

Bob
Agree but all I wanted to do was trim the excessive green/grey border 
around the target so that it would fit on a single sheet of A4. The 
coloured patches would remain unaltered. The PC target files appear 
to be different to the MAC version. My R2400 MAC target is Testchart 
G1BW000011A. The PC files all end 'B' and look different.

Peter.

> Peter,
> 
> Could it be that Epson decided how many samples of each patch they 
wanted 
> the spectro to take, and then set the size of the patch 
accordingly? Smaller 
> patches means fewer samples = less accuracy. You should take 5 
seconds to 
> read a strip according to Epson. If you start doing things 
differently, then 
> you may get different results to what Epson got with 
their 'standard' 
> printer that you are trying to calibrate to. Same with drying time; 
they 
> suggest 30 mins and even provide you with a countdown to 
measurement. Change 
> that and you may get different results that are not comparable to 
theirs.
> 
> This is real science, not subjective art!
> 
> Bob Frost.