exposure meter vs photometer

exposure meter and photometer both are nouns.

Word	Noun	Adjective	Verb	Adverb
exposure meter	Yes	No	No	No
photometer	Yes	No	No	No

As nouns, exposure meter and photometer are synonyms defined as:

exposure meter and photometer: photographic equipment that measures the intensity of light

Other synonyms of exposure meter include light meter.

exposure meter (noun)	photometer (noun)
photographic equipment that measures the intensity of light	photographic equipment that measures the intensity of light
	measuring instrument for measuring the luminous intensity of a source by comparing it (visually or photoelectrically) with a standard source