[cccwww]

C Hing

I have following question

1. What is different of UV filter and CPL?

2. Is it need "UV filter + CPL" use together ?

Thank in advance

[icekinhk]

uv 減紫外光, 一般當保護鏡用, 甚至有人話digital 既ccd/cmos 本身感應唔到紫外光(唔知真定假)
cpl 減反光, 影天 / 影水面玻璃等反光都有用, 用cpl 會減快門1~2級

[cccwww]

Thank for "iceinhk" comment

Can I use both of them together (UV Filter + CPL) ?

Or

Is it necessary?

[icekinhk]

可以, 影風景有用, 不過有d 人永遠唔除uv filter(保護用), 用cpl 都只會加o係uv filter上面。

有d 師兄話香港個天, 用唔用cpl 都唔會藍, 外國唔用都一樣咁藍, 你諗你。

[K_C]

"有d 師兄話香港個天, 用唔用cpl 都唔會藍, 外國唔用都一樣咁藍, 你諗你。 "

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同意! 香港天空大不如前了, 用cpl只會d雲清d, 但唔會令d雲同天白d同藍d.....>_<

[bb1032003]

cccwww,

Becareful if you use wide angle eg 18 mm or less if you use two filter it may have back corners because of the thickness of the filter.

Check and have some test shoot before you go to have real shoot.

[kanji]

我絕對唔建議兩個一齊用. 只為始終少一片玻璃,高一點成像.