The invention/novelty of the invention relates to a photoelectric measuring device, particularly a manual exposure meter (1) for taking photographs, comprising a housing (2), a light-sensitive element (4) which is arranged inside said housing (2) and whose output signal is fed to a microprocessor (31) via an analog/digital converter (30), whereby the microprocessor (31) calculates the input variable coming from the analog/ digital converter (30) with other settings (film speed (ASA), correction value (KW), calibrating data (KD)) to form an exposure value (e.g. EV) which can be indicated on a display (5), in addition to a manually rotatable calculation ring (7) on which either an exposure time series or a series of aperture stops is disposed and can be placed opposite a series of aperture stops (12) or exposure times (11) arranged on the housing by rotating the calculation ring (7), whereby an exposure value series (14) is also disposed on the calculation ring (7) and is rotatable in relation to a housing marking (14).