This sale is for a really good condition (and looks unused) Mamiya RB67/ RZ67 bellows lens hood G-3 for most of the Mamiya RB67 / RZ67 standard and telephoto lenses using a 77mm filter ring – or for a host of other lenses as well.
This hood is near mint other than it has been dropped and the adjustment knob is a bit bent and the housing slightly cracked. However, these two issues have no effect at all on use. The hood comes with the standard 77mm mounting ring, but no 360mm mask. Unless you are using a 360mm lens this makes no difference at all, because you do not use this mask with any other lenses. The instructions can be found in the Downloads section on this website.
This is much better than the earlier type G and G-2 hoods – and much harder to find. Although this example is not perfect, it really is more than adequate for the job.