I wish it were just a tad faster - aperture of 2 or larger rather than 2.8

f/2.8 IS USM is a compact and well-built prime lens with a nice wide-angle focal length, a good maximum aperture and a modern image stabilizer that compensates up to 4 f-stops

The f/2.8 aperture and the image stabilization make it great for low light photography

24mm f/2.8 IS USM for its good image quality, compact size and the maximum aperture of f/2.8

This lens is sharp--just as sharp as my 35L, if not sharper