Hi Gang................. My favorite mail order merchant of used equipment has a number of prisms available for the RB 67. They have a good price on both a regular prism and a prism with the CDS meter. Because the meter is not working on the metered prism they have it at even a better price than the regular prism. As I use my RB only as a Studio camera I don't need the meter function. Does any one know of why this would not be a good buy? IE: Does the meter add a lot of size or weight to the prism or for some reason does it interfere with the image in any way that would make the other prism a better buy since I am not buying it for the meter function anyway? Thanks Russ R.E. Baker Photography rebphoto@pronetisp.net