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Professional photography
Professional photography is the occupation of taking pictures and selling them freelance or as part of a contract usually with a publication.
Industry: Photography
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Professional photography
鏡頭驅動系統
Photography; Professional photography
在自動對焦單反相機使用。一個類型都有一個設在鏡頭內的電機 ; 在另一個,在相機機身內的電機轉動鏡頭通過驅動軸。
鏡頭速度
Photography; Professional photography
最大鏡頭開幕 (最小 f 值),可以設置一個鏡頭。一種快速鏡頭傳輸更多的光線,比一個緩慢的鏡頭更大開放。由就其焦距鏡頭最大光圈 確定。鏡頭的速度是相對於它的焦距長度。被認為是 A 400 毫米鏡頭最大光圈為 f/3.5 的速度非常快,而 28 毫米 f/3.5 鏡頭被認為是相對較慢。 ...
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