Apart from the Canon 600D does not automatically recognize the target (must be pressed shooting) and that slightly curve the corners of the image, this wide-angle lens combines reliability, adaptability, price and more than reasonable for such an opening with the lens. No vignetting, no image distortion beyond 50cm of removal, reasonable weight and adjusting aperture ring on the lens (some see it as a default, but for video, I think it is a sacred advantage. The focus ring is perfectly manageable (not as the focal of 50)
