timpoh said:nice pic. but how about potrait shot on people. my main concern is to get a sharp image on people. my EF 18-55mm can't give a sharp image in low light shooting. (ie, warm light in hotel room)
if a lens can produce sharp images under bright light, it'll produce similarly sharp pics under low light. The "unsharpness" is probably due to slow shutter speed which results in camera shake and affecting sharpness of the photo. You'll get the same results with any lens if the shutter speed is too slow and you don't have proper support.