About Carry Speed Strap

[yashica92]

Did the carry speed strap support the Mamiya RB67 ?

 

[John Koehrer]

They've been shut down in Ca. for infringing on a Black Rapid patent.
The way it works is with an adapter screwed into the tripod mount and the strap clips onto/into that.

There are quite a few negative comments about the product on DP review.