Depends on the condition of that 35/1.4, of course (and judging by the way it showed itself in Klaus's test, it should be okay by 2.8), and bear in mind that it will be so much larger than the 1.8 adapted.
I would've chosen the 35/1.4, I guess, but it may be just my wariness of the Canon RF system in general...
The 1.8 looks a lot sharper, of course, until both are stopped down a lot and the difference goes away.
I would've chosen the 35/1.4, I guess, but it may be just my wariness of the Canon RF system in general...

The 1.8 looks a lot sharper, of course, until both are stopped down a lot and the difference goes away.