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Lenses
A lens is an optical device which is capable of transmitting and refracting light.
Industry: Photography
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Lenses
鏡頭速度
Photography; Lenses
最大光圈 (最小光圈) 時,可以設置一個鏡頭。快速鏡頭傳輸更多的光,和有更大的空缺,比鏡頭速度較慢。通過與焦距最大光圈 決定。鏡頭速度是相對的: F/3.5 口徑最大 400 毫米鏡頭被視為速度極快,而 28 毫米 F/3.5 鏡頭被認為是相當緩慢。 ...
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