I am a professional photographer and I think a lens is worth the money. Photos are not very sharp, but often acceptable. I would recommend focus area bracketing, take a few shots while rotating the focus ring and you'll usually see better results. I will also play with aperture. If you're willing to take 9 or 10 photos to get a keeper, this lens is fine. Quality fisheye lenses are very expensive, and unless you particularly need them, they're pretty new anyway. I would rather spend the few hundred dollars saved on this fisheye on quality glass in a focal range that will be used frequently. This lens appears to be a white label of the same lens sold at twice the price on Amazon. I'm happy with a lens in the $100-$180 price range, but would be less than thrilled if I paid a lot more for it. buy this brand.
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