GH2, 28*1.83 = 51.24 vertical equiv
Sony APSC, 35*1.5 = 52.5
Trust me, the image with the hacked GH2 with a Bolex in front stretched out 1.5x is as detailed as it gets. It's got more detail than any native spherical Canon DSLR at 1080p. Sharpness is false, detail is king. Projected, these little super anamorphots hold up incredibly well.
I think I need to repeat. I see absolutely no degradation in image detail using the Bolex 16/32/1.5x on any of the primes/zooms I've used it on, all the way up to wide open aperture. Obviously apart from the horizontal softness that is introduced by stretching, and the difference in out of focus rendering. It definitely can add extra blooming, so hood/mattebox very useful.
I think you're getting hung up on focal lengths. I know a good range is important, but making comparisons across the range of sensor formats doesn't really say much. In most cases you're talking stepping a foot back or a foot forward, with very little change in image geometry. Only time I need wide for establishing shots, I'm usually quite happy switching back to spherical (Tokina 11-16), which needs a bit of work to match the anamorphic effect.
Nice truck shot by the way, really nice. You can still see the astigmatism at the edges of your image, which no amount of diopters is going to rescue. It's just flawed glass for large sensor. Just the same as my Optex 16:9 and Panasonic LA7200. I also have the Tokina ATX +0.4 Achromat, Heliopan +0.25, Cokin P101.
The quality of the shot distracts you from edge softness, so it still wouldn't be a stopper for me. Plus, filming talking heads, edge softness is rarely a problem. Still, Bolex, ISCO and Kowa are in a different league. I've tried them all.