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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.

Contributors in Professional photography

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。

鏡片鍍膜

Photography; Professional photography

層或多層薄層防反光材料應用於鏡頭元素減少光線的反射和透射光的金額增加的表面。

比例減速機

Photography; Professional photography

從一個照相底片減少過剩密度和對比度的化學方法。

Photography; Professional photography

是電電勢差和電動勢的單位。

色度

Photography; Professional photography

客觀測量的物件或光源的顏色。

焦點

Photography; Professional photography

其中從鏡頭的光線彙聚,形成清晰的圖像的位置。

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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