Excerpt: Was looking for a nice flexible lens and couldn't afford the other ones. The Sigma is a great lens. Great colors and amazing quality. The focus is a little slower then the higher end lenses however not really noticeable.
Excerpt: I am very pleased with this lens. The IQ is outstanding and so is the spot on colors. Perfect on my 6D and together, I am getting outstanding low light images and in some cases no flash is needed. Its built like a tank and the only drawback is the weight but I can handle it for the IQ I am getting.
Excerpt: Using this lens for portrait photography has been great. The focus can get a little soft when fully open at 2.8 and focal length 70mm, but it is just how you use it. I find it often gives just enough softness to enhance the look of my portrait photography. Not too harsh on the skin.
Pros: Great value, Lightweight, Strong Construction
Excerpt: I've had this lens now for two years and I have nothing but positives to say about it. I use it with my 5D III, my 50D, my A7R and NEX 7 (with the Metabones adapter) and even with my BMPCC (also with Metabones).
Excerpt: This is the first (and last) Sigma lens that I have bought. Thought I would take a chance with Sigma instead of purchasing a Canon L lens to save a few hundred bucks, and deeply regret it. Really wanted to love this lens as it was my first upgraded lens from my kit lens.
Pros: Durable, Rugged, Strong Construction
Cons: Blurry Focus, Heavy, Lens Creep, Poor in Low Light
Better than the rest, except maybe the Red Ring 24-70
LDH, B&H Photo
24 June 2015
Excerpt: I recently have gotten back into photography after a long layoff. I purchased last year an EOS 70D camera. It came with two kit lenses. So over the past year I have replaced/added three new lenses. I purchased this lens as I wanted to replace the kit 18-55.
Pros: Consistent Output, Durable, Easily Interchangeable, Fast / accurate auto-focus, Nice Bokeh, Rugged, Strong Construction