I've been looks for a superzoom to attach to my NEX 5r for filming hunts. ( been switching between 18-55 and 55-210, really impractical when filming wildlife). I like the looks of the EMount 18-200 but the price is outrageous, I can get the sigma for 1/3 the price of not lower. I own a metabones nex-eos mark ii and was wondering if anybody has had success with the sigma lens or if it even works. Biggest concern is aperture control and stabilization.