Hasselblad Diopters...reading glasses

[Peter Frahm]

I'm done, I'm having a hard time arriving at focus with my Hasselblad using a 45 degree prism. I wear reading glasses and recently graduated to about 2.00 or so.

Do they make an add on adjustable diopter that will screw on to my prism?

Any alternate companies making knock offs for Hasselblad?

Thank you