A sewing machine includes a bed, a needle plate, an image capture device, an auxiliary optical member, a switching device, a command acquisition device, and a control device. The needle plate is provided on the bed and includes a needle hole. The image capture device is adapted to capture an image facing downward from above the needle hole. The auxiliary optical member is adapted to transmit light to an image capture device side of the auxiliary optical member. The switching device switches the auxiliary optical member to one of being used and not being used. The command acquisition device acquires a command. In a case where the command has been acquired, the control device controls the switching device to switch the auxiliary optical member to one of being used and not being used in accordance with the command.