F3.5-5.6. Not bright enough when compare with higher price lens. 18 mm dark corner is a small problem (but generally exists in many lens)
評價:
Compact, light weight, metal mount.
Sharp, good colour and contrast.
Very very "value for money".
Compare with 16-45, have longer tele range but narrower wide range. But no internal flash problem with 16-45 (requires exteranl flash - add more weight and less inconvenient) under 28 mm.
Though the quality can't compare with the star / limited lens. This lens is very convenient and high quality for general purpose.