Same @ more than 900 fps with a small ROI ...
http://youtu.be/iJsNFNrZjJU
http://youtu.be/E6ah4Jv_4Xo
http://youtu.be/jZIvaszBCqA
I was at 3.5 m with a 44 mm M42 lens and a 30 mm M42/-0.75 male/female spacing ring.
I would need to be at least twice farther to get the whole balloon with this ROI !