Quote Originally Posted by Muihlinn View Post
IIRC in 21 bars step wedges each step is half stop. AFAIK all the info related to the wedges were in their website.

hope this somewhat helps.
Thanks for your answer Muihlinn! I know that the 21 step wedge increases in 0.15 densities (1/2 stop), and the 31 in 0.10 (1/3 stop).

what i still don't know is which bar (number) on the step wedge (either 21 or 31) represents medium gray...so that i could take a spotmeter reading off of that to determine expousre...

Any suggestions?