elkstabber
WKR
Thank you for the clarification. So the AK design from Vortex isn't anything new. The OP's screenshot on the bottom of the third page got me confused, which makes sense now because the Vortex rep was also confused.The big 3 aren’t using Porro designs, they are using roof prism designs. Ak is a type of roof prism. Swaro uses an Abbe-Koenig roof and so does Zeiss. They also use Schmidt-Pechan roof prisms for their compact models