exposure meter

基本解釋

And there's an exposure meter in a case attached.
另外還帶有一個(gè)裝曝光表的盒子。
Light Meter: An electrical exposure meter for measuring light intensity.
測(cè)光表：用來(lái)測(cè)量光強(qiáng)度的一種電子曝光表。
fanpaiwang.blog.sohu.com
You'd better consult the exposure meter if you are not sure of the time for exposure.
如果你拿不準(zhǔn)曝光時(shí)間，最好查一下曝光表。

an instrument for measuring the intensity of light, usually by means of a photocell, so that the suitable camera settings of shutter speed and f-number (or lens aperture) can be determined (Also called light meter)