[currycar]

Canon EF-S 18-200mm f/3.5-5.6 IS 及 Canon EF 70-200mm f/4L IS USM 邊支好.....點解$$$差咁遠..

本人用緊400d

[waisin4000]

光學質素，同景深: 702004LIS
方便，不用換鏡 18200

[gwu1]

Picture quality is very different.

[currycar]

any picture can refer the different ar....

[bzboy]

Canon EF 70-200mm f/4L IS USM 好.
L鏡一定好普通鏡靚

[currycar]

then

Canon EF 70-200mm f/4L IS USM good to use or

Canon EF 70-200mm f/2.8L IS USM good to use nei??

I like to use when watching concert.......

[gwu1]

both are suitable for concert if your seating distance is appropriate.

f4L is lighter and smaller (and cheaper too).

[ken61680]

70-200 F4貴D, 表面睇, 因為"恆定光圈" / "USM"

F4 & F2.8 , 機動性就F4, 因為比支F2.8輕好好好多

貪大光圈就一定要支F2.8 ~~

最緊要睇下自己有乜需要 ?

[currycar]

唔該 c hing...因價錢問題先入支f4先la......因都要八千幾.....