The SQ-B is a sweet, no frills camera. None of my MF cameras have metered prisms and it's never been a regret. They do seem to be a little more difficult to find than SQ, SQ-A and SQ-Ai bodies. They were originally sold as a kit with a WLF, PS-B 80/2.8 lens, and SQ-B 120 back. The only downside is that 120 backs for the SQ bodies are scarce and pricey relative to 220 backs--which can be used with 120 film.
Originally Posted by phelger