[rx7fd3s]

100 2.8L IS USM 用唔用到副廠2X?
真係好想可以同佢影遠D~哈哈~~~

[viovanda]

用唔到,cannot focus

[rx7fd3s]

下,無左AF...咁用1.4X又得唔得呢?

[alfredkktang]

It still has auto focus with Kenko Pro 300 2X or 1.4 DGX. However the focus speed will be a little bit slower and the contrast will be decreased.

[rankinelo]

>>100 2.8L IS USM 用唔用到副廠2X

2.8 * 2x = 5.6
最大光圈5.6... 道理上應該有auto focus... 只係唔好有期望, 好大機會只係"用到"

[viovanda]

道理上應該有,但真係對吾到

[rx7fd3s]

THANK以上既師兄,因為我睇CANON官網就話連自己既2X同1.4X都用唔到,咁副廠用到都可以一試XDD

[小小生]

影Macro洗乜AF呀,一向就算可以AF我都用MF架啦

[rx7fd3s]

你係咁,就唔係人人都係咁既,唔想答唔洗講廢話~.~