[JJ_SO]

You can turn the DSLR into live view mode, Klaus. And when shooting with adapted old lenses, I focus wide open, then count the aperture clicks to where I want it to be and take the photo. That would be the same with a lens like this.

I'd like to see you counting the Laowa clicks...   

Mine has not even them. But maybe Laowa learnt a bit. The 15/4 macro shift is silent. The only thing Laowa learnt how to do is using the optical formulas and improving them. The rest I see as mass production of protoype design, they miss so many modern standards, I will not take them serious.

And the LiveView of a DSLR in general is much worse than the one of mirrorless, don't know why. Stopping down to f/22 and I see sandpaper. It's basically the same as stopping down a DSLR and try to focus with actual aperture.