It's really good for daylight and interior with enough light, but I couldn't get good results at night

I used it mainly for indoor portrait photography and the results were excellent.

getting good results, I'm used to L type pro lenses so this is a reasonable price and a good angle 24mm...

I shoot with a Canon 5D Mark II and typically use 800 ISO up to 1600 with amazing results around 1/60 of a second firing

In fact, in some ways it exceeds them in terms of being much less prone to flare than either of the more expensive L lenses