good day... just wondering if there is a binocular reflex viewer that can be used with a Linhof Master Technika 2000. if there's no geniune Linhof part, is there a viewer that can be adapted... Horseman, Cabo, Toyo, etc? failing that, which of the linhof offerings is the most effective? i enjoy composing right-side-up very much and have gotten quite used to not needing a darkcloth.

thanks!
scott