So I own an A7sII, and a Canon KH21ex5.7IRSE HD 1/2" ENG lens...as of Friday, I also own a 1/2" bayonet to E mount adapter I got on eBay for $55.

Will possibly play with a 2/3" HD B4 lens, so I can deduct 2x worth of digital zoom from my image.

https://youtu.be/5jyHaZMOEVU