I use on D5100 I like this lens. For this price, a very good result. Aperture f1.8 - f2.2 is only suitable for close-up portraits. If to the waist, it is better to clamp it. I would buy a 35mm lens for myself. If you decide to buy a polarizing or ultraviolet filter, then I do not recommend saving. I bought a SUNPAK polarizer. it lathers the picture terribly. and the photos turned out to be spoiled. I recommend this lens for purchase.! S. P. before buying in a store, make a lot on the table to determine the front and back focus . For a "portrait" this is very critical .
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