[火Ken]

係咪定焦鏡唔好用Filter？？

[sorqueenie]

我都好似聽我朋友講過..............係咪有果d 叫昡光？？係咪呢？？我都有支Canon 50.4........我都想知道？？

[bsleep]

我用 50 1.8 都有呢個情況,. ... 無用filter 又無bor

[h0001244]

I heard that all glass would deviate the light quality by certain amount
no matter it is an expensive B+W or cheaper one Kenko

For 50 1.8, a better quality filter would cost nearly half the lens price. I wouldn't spend such money in deviating the light.

[wllui]

UV filter 係保護支鏡大於實際用途
如果你有支85.2L, 你會唔會裸鏡? 唔上係話怕撞花, 清潔多幾次塗層都蝕

[Sam1983]

唔一定.....

我支S50.4都要落filter,原因在,支鏡本身內對焦,鏡組在鏡內移動.....落filter可算是保護支鏡之餘仲可以防止入塵了

[wllui]

塵-真係防唔到, 根據我自己拆過鏡研究, EF 或 EF-S鏡係冇可能唔入塵
(L鏡未拆過--我唸我都唔會咁做, 錢多咩)
入塵位當然有可以係前方(裝FILTER有幫助), 但如個你見到GRIP位下或變焦桶根本係中門大開的話, 你未必會再為防塵而加FILTER

[火Ken]

唔該Sam and Jason 及其他C hing先，因為我用d定焦加Filter比個Nikon朋友問佢用定焦時用Filter有時會有眩光，所以先咁問；學多樣嘛！！thanks各位！！

[stanleypak]

佢之前係咪用的平價filter呀?
落filter真係保護支鏡多
我就試過一次護主犧牲左

[dhcp255]

用濾鏡有D情況會產生“內反射”現象。呢個時候有靚鍍膜既濾鏡價值就體現出來啦。不過就算普通用，貴價濾鏡對成像影響都好微，平價貨就有D慘。