Summary: We got this lens for our Canon VIXIA HF M500 Full HD 10x Image Stabilized Camcorder. It screws into the threads easily. It looks good on the camera, not out of place. It increased by over 50% what I could see through my camcorder's lens. After video taping with the lens on and off, I immediately hooked the camcorder up to our HD television. I could see no difference in quality of video with the lens. I saw no vignetting at all, even when zoomed all the way in or out.
Summary: I've used it with a camera Canon HF LEGRIA M46 (VIXIA HF M40). With more than 2.2 aperture image clear. When the diaphragm 1.8-2.2 vinentirovanie strong and soap at the edges. Color not change but catching flares. Excellent build quality. Rubberized ring. Includes protective cover. I recommend to decreasing angle of shooting for outdoor filming, 0.66 curvature is wide enough to make a major difference, without distorting the overall scope of the image.
Excerpt: Great accessory! I no longer find myself pressing against the wall in order to film indoor movies when in widescreen mode. I can not see any loss in quality and the mounting is easy and quite sturdy.
Pros: Easy To Use, Good Interface With Camcorder, Improves Performance, Quality Construction
Excerpt: I use this on my Panasonic GS-250. Good value and relatively sharp, although noticeably soft and some chromatic aberration at extreme telephoto. Very, very minimal barrel distortion. Like most wide angles, a hood pretty much required in sunlight to prevent flare. Good lens keeping within its limits. Recommended.