[kckwokhk]

各位Ching, 最近新買"Tokina 12-24" 配"Stppo" CPL濾鏡映風景，正常光圈先決拍出來的raw，總像曝光不足。要系DDP Brightness加大一級才正常。是濾鏡問題，還是應該每次用CPL都加大一級曝光補償呢？

[Obi-Wan]

kckwokhk

if your CPL is REAL CPL, no explosure compensation is required. Seems your CPL is only PL

http://www.youtube.com/watch?v=6lVIo9C0NDA

[kckwokhk]

哦，SSP 買的。$200, 77mm. 平平地，真貨，有咩好介紹呢？

[Obi-Wan]

cheapest brand name CPL is kenko, broadway has original one, but u have to bring your lens to check whether it is 100% flat glass. Last time I bought one from Broadway which is NOT flat, so that the image with / without the CPL has very very big difference especially at the tele end.

[kckwokhk]

Obi-Wan, 吾該曬。