Summary: This is a great wide angle adapter for 37mm threaded cameras. I got it back around 2001 or 2002 brand new. Even though it is 0.6x it still offers a wider field of view than my Sima 0.5x (old equivalent to the newer opteka 0.43). It gets a bigger field of view thanks to the huge glass on the front element of it and the distortion is very minimal unlike the lesser wide angle sima and opteka so the image looks a lot more like what you normally see.
Summary: I got to use my friends lense before I ordered this. It worked great, and since its a couple years old and not in the stores inventory anymore I came to Amazon and found it. I found out not all wide angle lense adapters allow the camera to zoom full length without causing the camera's auto focus to stop and leave you with a blury picture half way through the zoom range. Quality I think could have been better..
Summary: It is designed to be used for 37mm camcorders, but I bought mine for use with a digital camera (a Sony DSC-P50). It does the job very nicely. Note that the lens is large when mounted on a DSC-P50, and it will block the flash in the lower left of your frame. However, I found that if I was using the flash outdoors as fill-light, then the shadowing was negligible. This lens is a wide angle, but not quite a fish-eye. I enjoy the slight distortion it lends to my images (eg.