Rob Archer
Newbie
I have the superb 150mm lens for my Mamiya 7ii. Unfortunately the lens hood it cracked and won't stay on the lens. The hood is really not very good given the quality of the lens. I'm thinking of buying a 67mm screw-in metal lens hood but I'm not sure of the length I need. I'm pretty sure the Mamiya hood is actually a bit short for the lens so I could use a longer one. Anyone know any formula for calculating lens hood sizes?