Iscorama anamorphic combination

[wilco73]

Hi all! Looking for a good camera combination for my Iscorama anamorphic lens. 1968, m42 pentax mount. Tryed the Voighlander (25mm, f0.95) on the GH2 but 25mm is just to wide on de GH2 sensor. This we allready know ofcourse ;-( Anybody tryed the GH3 with this combination?The BMCC (m43) is even more cropfactor so i think it should work... Also am looking at the Olympus E-M5 because of the great stab.function. (But i do not like the 30fps codec) Does this work well with handheld anamorphic filming? Any experiences? Thank you in advanced!