I'm testing a Laowa 2x macro lens (EF version with automatic aperture) on my Canon RP camera (corrected through an automatic EF-RF adapter).
The lens enforces 1.6x crop mode on the RP, in the same way that EF-S lenses can only be used in crop mode on this full frame camera. I have gathered from other forums that this is a problem with the chip in early versions of this lens in RF bodies.
My question: Has anyone here successfully exchanged the chip (PCB) that Laowa allegedly offeres as a fix (I haven't heard back from Laowa yet; this was mentioned in the other forum)? I'm trying to find out what my options would be as otherwise I need to return the lens ASAP.
Regards, Ichty
(P.S.: Taping over all the contacts wouldn't be a good fix for me
as the automatic aperture is an essention feature of this EF version.)
Unacceptable 
But in all seriousness, crop mode is 10 MP on the Canon RP. That's not using the lens to it's full potential, as it is supposedly quite good on full frame.