Summary: It is very inexpensive, so I wouldnt discourage buying it, but I assumed that it came with the 3 other rings for adapting it to the camera I purchased it for. It did not. Duct tape, and its all good.
Summary: Bought it for C$69.99 (Canadian), went for vacation and regretted not have returned in time. 3 issues with this lens compared to my other cheap conversion wide lens. A) The adaptor that screws into the camcorder is made of plastic, hence durability is not good.
Summary: I've had this gear for almost a year or more, using it quite often with daily use over weeks straight, and it's getting a 3' rating because the lens quality isn't up to snuff. I'd love to give it 4''s since it's terrific... I mean, terrific...
Summary: Purchased this converter as I wanted something more compact than other wide angle converters. If you want the fisheye look, then get this lens, otherwise it's unusable for regular shots as it distorts perspective too much. I have always put a wide angle converter on my miniDV and HD cams.