I am posting a couple of shots from the Minolta Rokkor 58 f/1.2 on my Canon R5 II that I took of my son for his grade 8 graduation last night. I shot the lens adapted to Canon using the Shoten Leica M to RF electronic adapter and an Canon EF to Leica M adapter (so two adapters and the Minolta lens was converted to Canon EF mount with a Leitax mount adapter). This setup allows the Canon focus aids and I can report those aids even indicate eye AF. The aids make it a lot easier to shoot than using magnification or ground glass screen in a DSLR. It was super easy to use for portraits.
I had the lens a number of years ago and shot it on Canon DSLRs, so I knew I liked it, but shooting it yesterday reminded me that I like the look that it produces a lot. Sharp enough and with really nice bokeh when stopped down a little. Philip at philipreeve.net reviewed it years ago, (see the review here: https://phillipreeve.net/blog/minolta-mc-rokkor-58mm-11-2/
I agree with Philip that the lens really shines at f/2 especially for portraits, but I would add that it is especially good with bright contrasty light if you don't shoot into that light. The lens really holds the highlights well. Below I will post a couple shots with the lens in fairly bright afternoon sunlight (a little after 3:00PM in Toronto) and then post a couple shots (one with the Voigtlander 40 f/1.2 and one with the Canon 135 f/2L) all shot within minutes of each other in the same location with the same camera and the same settings (AV mode, f/2, and ISO 100). The more modern lenses are sharper, but the 1960s era lens held the highlights from being too bright much better and the first Minolta shot is my keeper for his grad portrait.
Let me know what you think.
Canon EOS R5m2Minolta MC Rokkor lens58mmf/1.21/400s100 ISO0.0 EV
Canon EOS R5m2Minolta MC Rokkor lens58mmf/1.21/320s100 ISO0.0 EV
Canon EOS R5m2Voigtlander NOKTON 40mm F1.2 lens40mmf/2.01/500s100 ISO0.0 EV
Canon EOS R5m2EF135mm f/2L USM lens135mmf/2.01/1000s100 ISO0.0 EV