The included universal snap-on adapter fits any lens with a filter thread size between 52mm and 67mm. It can also be screwed directly onto 43mm threads.
Yes, autofocus remains functional, though manual focus or a macro focusing rail is highly recommended due to the extremely shallow depth of field at 2.5x magnification.
Vignetting may occur on wide-angle lenses. It is best used with focal lengths of 50mm or higher (full-frame equivalent) to ensure a clear, frame-filling image.