[tinmingw]

chings , ,sigma 10-20mm 3.5 0r 舊款那支 , 可否加 extender 1.4x or 2x使用?thx.

[Obi-Wan]

如果唔係canon extender, 應該可以。但點解要咁做？2X 係設計係中至長鏡用嫁！

[tinmingw]

變標準鏡ma

[h0001244]

我試過用 Kenko 2X 的放响10-17
practically work, but degrades image quality and reduced apeture

tinmingw 兄，標準鏡唔算貴兼且常用，買支吧！

[GBAmon]

唔好咁做啦......帶多個extender 咪又要換來換去.....