HI,
I'm not sure where you got the idea that you can't profile using ambient light but that is incorrect.
Great thanks for the quick response, I must admit I was confused myself but the kakky manual gave me the impression I could only use the studio lights plus the online tuts only show the same. I did in fact download your 30D csv file and transformed it onto my meter in the form of a backup. Until I get this thing sussed I am mostly interested in the exposure clipping function of which I need the profile to determine the DR. I figured that putting your profile on for the time being would be better than none for this purpose. Now that I know you can use ambient light I will do my own.
Being a software designer myself I thought the software was a bit basic especially not being able to convert a csv backup back to a spf editable profile unless I have missed summit.
regards



