This pixco fisheye converter fc-58e25 0.25x has 2 pieces of glass that enable it to function as a:-
(i) close up lens (macro +12.5) when a single glass is attached and
(ii) fisheye when both glasses are attached
-the lens fits onto a 58mm thread but can sit on lenses of other diameters with the aid of step-up or step-down rings in my other advert.
- compatible with nikon, canon, etc.