I wondered about what a Spyder was too, apparently it's an actual physical device that sits in front of your monitor and measures color values. Someone probably knows much more about them than I do though.

SnowS

my DeviantArt page: http://snowsultan.deviantart.com/

 

I do not speak as a representative of DAZ, I speak only as a long-time member here. Be nice (and quit lying about DAZ) and I'll be nice too.