Is there a dedicated hood for the Bronica Zenzanon-PS 50/3.5?
I've seen hoods for the Zenzanon-S (67mm filter size): they're square and attach by bayonet. But the Zenzanon-PS (77mm filter size) has no bayonet fitting.
There are some generic 77m screw-in hoods on ebay, but I'm not convinced they'd be wide enough.
I've not seen a dedicated one. There are shallow "wide angle" 77 mm hoods that work for me. Attempting to stack a couple of filters could start trouble though, I was surprised how sensitive that lens is for vignetting -- I mean it's hardly what one would call "ultra wide."
I have a dedicated hood for my 50mm and it has spring loaded pins that lock into holes on the lens. I think there two rectangular holes in the lens barrel that the pins lock into. I found my hood on ebay.