來看看嚴謹?shù)牡聡藢Υ绥R頭的評價Small and light-weight， affordable and， yes， bitingly sharp， at least stopped down. 小型， 輕量， 低價， 而且銳度很高(收縮光圈之后)Wide open， the lens lacks both contrast and sharpness， especially towards the borders and corners.全開光圈下對比度和銳度會下降很多， 尤其是邊緣畫質(zhì)CAs are moderate and distortion actually very well controlled though. 色散控制和畸變還是很不錯的The lens' main weakness is its bokeh which is somewhat unpleasant.最大的問題在于焦外的虛化效果很不好(令人不舒服)The build quality is good， but nothing to rave about.If you can live with the bokeh quality， the lens is no doubt a no-brainer， especially given its very moderate price. 做工很不錯， 如果你能接受它的郊外虛化效果的話， 那么性價比很高Those wanting better bokeh quality should get the newer AF-S version of the lens instead， which also offer better resolution towards the image borders and corners.比較在意虛化效果的人建議買別的鏡頭.