Excerpt: A nice small lens that I specially acquired for its low profile. I'm going psychological and not so much technical with this. Because of the person I am as a photographer, I can feel a bit uncomfortable using bigger lenses in public (market) places.
Excerpt: A terrific lens that packs a lot of versatility into a convenient size. Lightweight, sharp, fast, makes this 40mm a stealthy, unobtrusive street photography lens, even on a 5D full frame. The build is a tad too "plastic" but the very reasonable price tag, outweighs that one negative.
Excerpt: I bought this primarily to use at weddings, while I am focused on portraits and key points of interests using other lenses, my assistant captures candid shots using this lens. It is simple to operate, fast focus, and really just a great little lens. And it is lightweight.
Excerpt: I use this lens when I want to carry my camera but want to avoid the weight of a L lens. I love using it, it's sharp, fast and so light. The quality not perfect - it sometimes struggles to focus in low light.
Pros: Fast / accurate auto-focus, Lightweight, Nice Bokeh
Excerpt: I read almost all the feed back I could on this lens and found they were spot on. Love the quality of pictures I took with this lens. Takes a nice portrait, but will be very useful to me in capturing rock art when I do archaeological surveys.
Pros: Consistent Output, Durable, Easily Interchangeable, Fast / accurate auto-focus, Lightweight