| 摘要 |
PROBLEM TO BE SOLVED: To provide a single lens reflex camera capable of easily interchanging lenses in any place without necessitating to demand caution from a user. SOLUTION: A radio communication apparatus 110a is arranged in an interchangeable lens so that mutual communication between the apparatus 110a and a radio communication apparatus 101a on the camera main body 100 side can be performed in the case the interchangeable lens 110 is mounted on a lens mount part 101 on the camera main body 100 side. A radio communication apparatus 120a is arranged in a flash emitting apparatus 120 so that mutual communication between the apparatus 120a and the radio communication apparatus 101a on the camera main body 100 side can be performed in the case the flash emitting apparatus 120 is loaded to the camera main body 100. Parts functioning as electric contacts in a conventional manner are replaced with the radio communication apparatuses 101a, 110a, 102a and 120a, then, the contacts are eliminated. Besides, a dust filter is arranged in a part where the electric contact is arranged before, then, an interchange of lenses can be easily performed in any place. COPYRIGHT: (C)2006,JPO&NCIPI
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