Opteka HD² Super 0.20X AF Lens Hypergone "Fisheye" For Nikon Professional Models: D3000, D3100, D5000, D7000, D40, D40x, D50, D60, D70, D70s, D80, D90, D100, D200, D300, D300 & D700 Devices SLR Cameras (Electronics)
I used it two or three times. If you are seeking an alternative to large angular type or fish-eyes, go your way. I feel that there is no secret. In any case, this type of article does not replace. In anything. After, comes complete product (for almos