本帖最後由 rockie577 於 2015-5-27 10:58 編輯
回覆 332# pc1668
Yes. 30mm vs 50mm is a huge diff, so I own both of them 
I have used 14, 17 and 20, and I like 20>17>=14
20 color is more solid and saturated when pair up with EM5 except there is bending issue when ISO past 6400
the PQ of 17 is good but not excellence. However, the focus speed and focal length is very versatile
the PQ of 14 is similar to 17. I will also consider 12-32 if you consider 14
In my book, most of the pana prime lens are very good. For oly, may be only 45mm and 75mm are worth buying. |