| 摘要 |
When a safety switch is ON in step S1, and a movement lock portion and a safety lock portion are locked in step S2, a movement lock switch becomes inoperable and a detachment/attachment lock release button becomes operable. When a detachment/attachment lock portion is released in step S3, an imaging portion becomes attachable or detachable in step S4a or S4b. If the imaging portion is present, a type detecting unit discriminates its type in step S7. Adjustment is performed so that a weight is balanced with a total weight of the discriminated imaging portion and the holder in step S8.
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