[millionng]

我用緊7d 有支天涯sigma18-200 mark2
想要光園，唸緊轉走支18-200入18-50marco 2.8定50.8好

[Sue_C]

u mean bigger aperture ?
50.8, try it.

[t502kg]

50.8幾舊水買到，轉唔轉走sigma都可一試，好標頭一支！

[zoemui]

使唔使開兩個post問呀?

呢類架仔野用zoom得啦。