Wondering what you guys think of this, unlike the (I'm assuming) previous model (judging by Jacob Epsteins photo of May 21) it's now possible to view through the viewfinder and video assist at the same time..
https://www.instagram.com/p/CQnlrv4C9uR/
How would this be achieved do you think? An additional beamsplitter prism to route some of the light from the viewfinder towards the gopro, which is in the body somewhere?
To clarify: I don't plan to buy one of these K4's, just wondering how it was done and if I could do something similar with a reflex bolex.