I have been using this lens for 14 months, there are no problems, except for a moving trunk and a small front focus, it shoots perfectly, focuses quickly and almost silently. The lens is completely satisfied as a staff member, I took it with me a lot on trips, everything is in order with dust protection. My first Sigma, and I'm not nearly disappointed, although I'm looking at a fast elk. Photo examples: photographed with a polarizer and converted to lightroom http://club. Foto. Ru/gallery/photos/2059604 http://club. Foto. Ru/gallery/photos/2028989 http://club. Foto. Ru/gallery/photos/2028986
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