I think it would go on, but the windows will not line up with the Zi windows.
Just got mine last week (90 Macro 4.0) and it is outstanding. It do not go soft close up like the 2.0 and 2.8. It collapses to the size of a 50 Summicron, extending 18 mm for use. Takes 39mm filters and come with a far deeper shade than other 90`s.