Sirius Glass
Subscriber
I switch back and forth effortlessly because I use the same speed film for both unless I am shooting waterfalls.
I have two Nikon SLRs, one for C-41 and one for black & white.
Four film backs for the Hasselblads , two for C-41 and two for black & white.
Multiples film holders and Grafmatic 45s for C-41 and black & white, each clearly labeled.
I did not mean to imply that the exposure for a black & white and a C-41 will necessarily be the same. The light meter will be set the same, but the same subject may be exposed differently depending on the shadow detail as well as other factors including filter usage.