Pretty cool. The only big question is, is Samyang 12/2 really better?
With such heavy barrel distortions, a cropping is unavoidable....so the angle coverage is a little bit less than that of a 11mm lens... Maybe it would be handy if the actual coverage angle after image correction....
Some might buy 11mm lens over 12mm for the coverage angle, so it might be important to know how much angle coverage we are having after correction
I think such corner coverage is not ideal but for me it is still a good device.