enzo 寫:
呢支好特別既鏡... 40mm f2.8 limited.. 係限量版黎..
呢d range (50mm左右)有個叫標準鏡既稱呼, 因為50mm既range係最接近人雙眼既視距, 所以影出黎就好似用你對眼睇既感覺..
用黎做snap shot同人像都好適合..
呢種鏡各大廠都有出, 因為係最佳既入門鏡, 好好學用對攝影技術改進好有幫助~~
你所指既"類似"相信係講緊各廠既50mm鏡, 但光圈既大細就有好大既差異.. 好似canon EF50mm有 f1.8, 1.4同經典鏡王f1.0.. 價錢由780至過萬~
EF50 F1.8 used plastic as main lens material, that's why it is so cheap, I have seen it at $680 brand new at Mong Kok.
Ef50 F1.4 is much heavier, standard hiqh quality prime lens from Canon, this is a very sharp lens in Canon family, with USM. $2xxx
The EF50 F1.0 is a L lens. it is actually a lens to demonstrate the capability of Canon, in my opinion, it is not a lens that famous for its image quality, I have seen some picture from this lens, when wide open it is fairly soft, this is unusual for L prime lens in Canon lineup.
At the FD mount day, Canon made a F0.95 lens to break the reason, I don't know how they make that happen, theoretically this mean when light enter the lens, there is no light loss at all but have some GAIN, something that is completely out of normal understanding.