This filter is almost essential to take pictures in very sunny regions. The color rendering is re-raised despite the sun. It's silly but remember to remove the night if you need to take pictures with flash. A small drawback, however: before the shooting, you often put the filter in its ideal position with the small pin attached to the side. And there, if you have adapted your visor, you'll have to unscrew the first under pain of not being able to screw your filter on the lens, so you will turn it with your fingers !! As for the quality of optics: perfect.