[Brightcolours]

There are a few vintage 55/1.2 & 58/1.2 that offer similar FOV & DOF and are built like rocks.

I have a Minolta MC 58/1.2 that costed me around 300€ and is much smaller.

Nice lens. I have two 55mm f1.2's myself. Although they are smaller, they are not all that super in certain areas, though. For instance the heavy vignetting, which makes them hardly qualify as f1.2 lenses. Contrast is not that great with the Minolta, and bokeh is not great either (unless you blur the hell out of stuff by shooting up close). I ma not sure if all versions of the Minolta 58mm f1.2 have the same bokeh, though.

I have a hard time deciding which has worse bokeh, the Minolta 58mm f1.2 or the Canon FD 55mm f1.2 Aspherical.

 

I like what this german lens does. I know that the simple optics and narrow barrel of my 55mm f1.2's make them small, but they are not 'amazing" lenses. Back when they were new, they were expensive... Also your 58mm f1.2. 55mm is pretty far removed from 64mm, by the way.