Patent ID: 7539408

Claim:
A single-lens reflex camera body to which a first lens unit provided with a diaphragm ring that is capable of adjusting a diaphragm value by a rotating operation, and a second lens unit tat is not provided with the diaphragm ring can be attached/detached selectively, the single-lens reflex camera body comprising: a rotation operator that accepts a rotating operation to adjust a diaphragm value of the first lens unit or the second lens unit that is attached to the singe-lens reflex camera body; and a controller that transmits the diaphragm value that is adjusted at the rotation operator to the first lens unit or the second lens unit that is attached to the single-lens reflex camera body, wherein an operating direction of the diaphragm ring when a rotating operation is performed at the diaphragm ring to increase the diaphragm value is substantially in the same direction as an operating direction of the rotation operator when the rotating operation is performed at the rotation operator to increase the diaphragm value.