I see this one for sale:
"Acute Matte 42165... As integral components of Hasselblad's modular approach to creating dynamic camera systems, Acute-Matte screens provide you with the best of all possible views. Precision cut to incredibly high tolerances, the rings of the Fresnel field are completely invisible in the viewfinder. Brightness and clarity are unrivaled making focusing easier than it's ever been. Compatible with all Hasselblad lenses and finders."
Is that what I want? Is there anything better?
Janet