BEST purchase yet! I am a full-time wedding photographer and shoot with fixed focal lengths. I had a 24-70 2.8L lens that I HATED to shoot with (soft, 2.8 aperture is terrible). But I needed a wide angle lens for a limited space (photo prep, large family groups, etc.) and bought this lens. It's worth EVERY penny, I love it. The f/2 aperture is still great and creates a very nice bokeh. It's sharp and fast. I am attaching some photos taken with this lens last night. This might replace my obsession with my Sigma ART 50mm lens.
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