To provide a stroboscope unit having reduced noise influences and which is made small in size and to provide a camera equipped with the stroboscope unit.

As for the stroboscope unit provided with at least a booster circuit for boosting the voltage of a battery, a light emission circuit for starting to emit light from a discharge tube and a light control circuit for controlling the light emitting time of the stroboscope, the stroboscope unit is constituted of two printed substrates with a circuit pattern separately formed on one side and which are arranged in nearly parallel so that at least the substrates may partly overlay each other and electrical parts attached to the two printed substrates, and in at least one of two printed substrates, a conductive layer with a noise interrupting function is formed on the surface opposite to the surface with the circuit pattern formed.