Summary: It´s amazing !!!! Now I can capture with my Sanyo HD1000, incredible videos, with this wide angle lens, and without any distorsion, and much more angle of vision, being more realistic and not zoomed how it´s with original lens. The unique bad point, is that can´t no use flash when you do photos.
Summary: Crisp and clean, minimal distortion. Starts to get blurry about half way zooming through on to completely blurred fully zoomed in. No vignetting, but picks up light rays from sun and high powered sources when aimed near or directly at source light. Lightweight and comes with a cover.