So I saw this at Peta Pixel
http://petapixel.com/2016/04/27/sovi...-camera-mount/
And on a moments impulse I bought one and it arrived today. ROTFLMAO
The one that I got has -0- wear on the focus ring, though I have to rotate the mount about 5 degrees as it is off just that wee bit. It has a set of gun sights on the top that get annoying if you pick it and hold it against your body just wrong.
It seems sharp - certainly for the $$ paid - though I think I need to get a new concrete leg tripod set up. Trying to focus on something 1/2 mile away with 10x live view.... lets just say you don't want any caffeine in your system
This is surely not a "run and gun" by any means the focus travel is just short 360 degrees from 9 ish meters to infinity. And it is very smooth - it seems to be a well machined.
I can see this being a really cool wildlife lens (f stop kind of small though)
I will be playing with this over the weekend and will post some shots before the weekend is out.
Mike