Simon Burrell wrote: > Profile check complete, peak err = 23.656901, avg err = 3.248197 Hi, you don't say what sort of profile you have chosen, matrix or cLUT. It's not that unusual to have such a fit for a scanner though, particularly if it's a matrix profile. > The first thing that stands out is the line, "682 useful edges out of 2130" > - does this suggest an error in my .tif file? There also seems to be a lot No, that's just internal processing information. > of rotation work - would re-scanning my target and attempting to get it > straighter benefit? There is very little rotation (-0.114407 degrees). As long as it's detected properly, this is quite normal. The important thing if you are worried, is to check the diagnostic output (scaning -dipn) Graeme Gill.