I will carry one back for color and one for b/w, but not 2 of each. Sure, if I run out of color I can switch quickly to the b/w back, but it's not how I like to work because if I've chosen color for a particular shot it's for a reason.

Quote Originally Posted by Sirius Glass View Post
I carry both black & white film backs and color film backs. Sometimes I will take a composition with both backs. I spent a week at Yosemite at the beginning of December one year. I was only planning of shooting color, but it had just snowed and after shooting a few scenes in color, I ended up shooting only black & white the rest of the time. I have some fantastic photographs from that trip. Be prepared for anything and wonderful opportunities arise.

Also when I am using the Hasselblad I already have the 50mm, 80mm, 150mm, 250mm lenses, the filters, close-up rings, 2X adapter and a 903 SWC available. How much more trouble does it take to have an extra film back too?