Stephen,I swore I wouldn't get into this tempest, but what does EVF mean to you?
In the non-Arca world, it means electronic viewfinder. My understanding of what Arca makes is that it is a variable (or adjustable) version of a non-electronic viewing/framing device. Like a "son of Linhof Multifinder." Is that wrong?
In the Arca world all it means is External View Finder, which in fairness is what they call it. We (forum posters who are lazy writers and texters) have shortened it to EVF...