An image pickup apparatus includes the following units. An image pickup unit captures an image and outputs an analog image signal. A conversion unit converts the analog image signal into a digital image signal. A synchronization signal generation unit generates a synchronization signal to be supplied to the image pickup unit and the conversion unit, and supplies the synchronization signal to the image pickup unit. An adjustment unit adjusts the timing at which the synchronization signal generated by the synchronization signal generation unit is supplied to the conversion unit, and supplies the synchronization signal to the conversion unit. The adjustment unit is disposed in a position such that the adjustment unit is affected by the self-heating of the image pickup unit.