Although I do not own a Pentax 67 I can comment about the Hasselblad. My 501C/M with the PM5 (non metered, 45 degree finder) is pretty nice. Like the poster above said, it sits slightly below eye level which allows you to hold the camera steadier in my opinion since you are slightly crouching down. I must say it isn't as easy to focus as my RZ67 though, not sure how the Pentax holds up to the Hasselblad in this situation.