I bought a light yellow filter for B/W work, and the filter factor is 2x. I should know the answer to this, but I'm not sure, since I haven't used a filter in forever. Do I open one stop to compensate?
Also, if I want to reset my light meter to be able to read values directly, where would I set the ISO on the dial for ISO 400 (Kodak Tri-X.)?
Thank you to all who reply.
With best regards,