@Ryan: "At any given field of view WACP (with a compatible lens) will be sharper in the corners than any lens behind a dome resulting in the same FOV at the same aperture."
Is this true for rectilinear WA lenses only - or is this also the case for fisheye lenses?
Hi Wolfgang - that is an interesting point of clarification, and something worth testing. Thinking from the full frame perspective I didn't see a direct FOV equivalency, but on DX a 15mm or so fisheye is roughly equivalent to the 18-19mm lenses with WACP.
I'll see if we can test that in the lab.