MTF (resolution)
Regarding its 10.7x zoom ratio the EF 28-300mm L IS is a lens of compromises and regardless of all efforts it cannot be a stellar performer regarding resolution. However, the lens manages to keep the quality on a very respectable level throughout the zoom range. The resolution figures are surprisingly high at 28mm where the center quality is excellent straight from the max. aperture. The border quality follows on a good to very good level without a major gain in quality by stopping down. The sweet spot of the lens is around 50-100mm where the center and border quality is more harmonious. At 200mm and slightly more so at 300mm there\'s a slight drop in quality but without any unpleasant surprises. Even at 300mm the center is very good at f/5.6 followed by good borders and stopping down lifts the performance a bit further. All-in-all a very impressive performance but naturally not comparable to the best lenses at the respective native focal lengths.
是我的英文不好嗎? 這裡對它的評價很好呀? 只是不能跟在相同焦段的最好的定焦鏡頭相比!
最後那段還真是廢話! 有那顆變焦鏡頭能跟在相同焦段的最好的定焦鏡頭相比呀?
坦白說 你要是真在意鏡頭的解析度 那你還真該改用120的哈蘇相機~~隨便一顆定焦KIT都有L鏡的水準! 但是......新手一開始就用它會~~[s:14]
樓主: turnroll
樓主
發表於 2009-11-12 14:32
