Optical apparatus, moving body, holding position adjusting method, and program

Even when a weight is not used, it is desired to suppress a load applied to a holding unit that holds a device including a lens from fluctuating due to the movement of the lens. An optical device includes an optical unit having one or more lenses, a holding unit that rotatably holds the optical unit around the rotation axis, and a rotation axis corresponding to the movement of the one or more lenses. And an adjustment unit that adjusts the holding position of the optical unit by the holding unit in a direction different from the direction of. The holding unit may rotatably hold the optical unit around a rotation axis in a direction different from the direction of the optical axis of the one or more lenses. The adjusting unit may adjust the holding position of the optical unit by the holding unit along the optical axis in accordance with the movement of the one or more lenses in the direction of the optical axis. [Selection] Figure 2