Rated 2 out of
Not so good"I purchased this with the sigma 17-50mm 2.8 and I find that all indoor images are dull. The colours just don't pop - inside or out. I'm an amateur photographer using a Canon 7D and this is the third lens I've purchased, but the only non-Canon lens. Not sure if it's the lens or the filter, but the pictures are not crisp like the ones I shoot with the Canon lenses."