An aspect of the present invention provides a lens-interchangeable camera which has operability equal to a right-handed user and a left-handed user without necessity of any addition of extra members and without sacrificing a design for a smaller size. Since a camera according to the present invention does not need any extra members, a user-friendly camera which eliminates any disadvantage for a use by left-handed persons at a high level that any conventional cameras have not yet achieved can be achieved. Also, since a camera body can be disposed on a left side as needed even for a right-handed user and the right-handed user can operate the camera body only with his/her left hand, this form is convenient when the user picks up images while the user is operating another apparatus with his/her right hand.