[colin11]

聽人講話用小小白+1.4x,
1.4x咁姐係邊隻鏡呀??~~

[conjuror]

1.4x 係可以幫你支小小白增長個focal length o既配件，唔係鏡o黎嫁~

即係由70-200mm 變成 98-280mm~

當然呢個世界係冇免費o既午餐啦... 個光圈因而就會變小...

詳情可參閱\nhttp://www.the-digital-picture.com/Reviews/Canon-Extender-EF-1.4x-II-Tele-Converter-Review.aspx

我都係係果度學o野嫁咋~

希望可以幫到你。

[colin11]

哦~~
唔該呀~~
咁如果我用小小白呢?
個光圈會小左幾多呀??

[conjuror]

唔駛唔該~

我都係早排先學識呢様o野... 而且都仲未熟晒... 如有遺漏，還請各高手賜教~

個extender 會增加你支lens o既f number by 1 step.

如果你用小小白，最小光圈會由f4.0 變成f5.6. 當然你可以用Manul mode 夾硬set 番做f4.0，但如果用autofocus 就應該唔得...

詳情都係睇番我之前post o個個webpage 啦~

[colin11]

thx for your answer~~~~