70mm film back question

[spb854]

A while back I bought a new "old stock" 70mm film back for my Mamiya RB67 Pro-S camera. It's new in box.

I have a question....

Seems that WHAT film I DO see is NON-perforated.

Opening up the back, I see sprockets at the top on the left hand side only. The manual says it uses perforated film. However, the sprockets are not very big and I assume they're for alignment only.

Can I use NON-perforated film in this film back?

If not, WHERE do you find perforated 70mm film? I'd really like BW film vs color since I can process the BW film and have never processed color. I have a Jobo tank and have a pair of 70mm reels purchased and awaiting their arrival.

Thanks,
Steve

 

[Terence]

No, your back cannot use unperfed film without modification.

As to availability:
(there was a url link here which no longer exists)

 

[Mackinaw]

If not, WHERE do you find perforated 70mm film?

It's getting very hard to find affordable 70mm film. Kodak makes 70mm film aerial film which you can find on the B&H website (special application film). Very pricey though.

Jim B.