[eric288c]

Kenko Extension Tube +
EF 70-200 F4 L 或
EF-S 17-55 F2.8
有無師兄用過? 效果如何?
爬了很多文, 有d話沒有了AF, 有d話可以.....

[calwkf]

好似用唔到 EF-S lens 喎..

[eric288c]

無錯....from Kenko web site:
Canon EF-S lenses are not applicable.

仲諗緊係唔係要換支 EF 17-40mm f/4L USM

[JSmith]

kenko extension tube都唔差架，有無AF要睇埋你用乜野body
1 series就冇乜問題，5D差啲，....一路差落去.....
f/4 用extension tube 光圈重細，有冇用就睇你啦