Michael Benveniste wrote:

I didn't think you could put a digital back on a 645E. But one of
the things the 645E did was to drive the price of _used_ 645 manual
focus cameras down to today's historically low levels.

I don't doubt that one minute.
In fact, i think it was responsible for driving the price of used
any-brand-or-type MF camera down to today's historically low levels as
well... ;-)

[big snip]

Can't disagree with any of it! ;-)
Good stuff!