Most helpful critical review
31 of 32 people found the following review helpful
grey card seems to be brighter than true XRite 18% grey
on January 20, 2013
These cards are brighter than the 18% I expected, yielding an RGB value of 160, 160, 160 instead of the 128, 128, 128 I expected to see. So I'm not sure if there is not enough standardization of the term "18% grey" but these cards when checked against an XRite chart were at least 1 step brighter than the XRite's version of 18% grey.
The white and black were fine, and otherwise these cards are really good to use. A little shiny for the black card, but overall a good set. I just needed to hit the 18% I expected and not the brighter version of 18% I see with some of these cards.