A camera is disclosed which is provided with a sensor device that includes: a substrate having formed thereon which first and second line sensors that are arranged a fixed baseline length apart from each other and a third sensor for receiving light from a field which is arranged on a line in arrangement direction of the first and second line sensors, a first light receiving optical unit for condensing light from the field onto the first line sensor, a second light receiving optical unit for condensing light from the field onto the second line sensor, a third light receiving optical unit for condensing light from the field onto the third sensor, wherein, when focal lengths of the first, second, and third light receiving optical units are assumed to be f1, f2, and f3, respectively, the following condition is satisfied: f1=f2f3.