film speed

基本解釋

You also need to set the proper film speed and aperture. This will all depend on location of the storm.
你還需要根據(jù)風(fēng)暴的位置遠(yuǎn)近設(shè)置好適度的快門(mén)速度和光圈值。
If you typically shoot at night, indoors, or in dimly lit environments consider the ISO range on the camera - the digital equivalent of film speed.
如果你更經(jīng)常在夜晚，室內(nèi)，以及低光環(huán)境中拍攝的話，考慮相機(jī)的ISO-（與膠片相機(jī)的膠片感光度相同）範(fàn)圍設(shè)置。我日常使用的相機(jī)最高感光度爲(wèi)1600。
You’re going to find your spot, set up, select the correct film speed and aperture for the type of storm, open the shutter and wait for the first lightning strike.
你要根據(jù)風(fēng)暴的現(xiàn)狀找到自己的最佳位置，設(shè)置蓡數(shù)，選擇正確的膠片速度和曝光值，打開(kāi)快門(mén)等著第一道閃電的降臨。

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the sensitivity to light of a photographic film, specified in terms of the film's ISO rating