| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that it is difficult to photograph after stably fixing a camera to a tripod and setting a photographing posture due to the weight of a lens body increased and its gravity center changed with the upsizing of the lens. SOLUTION: In the lens barrel for a large zoom lens of an internal focusing system, a lens barrel 2 having a camera connection mount 12 is connected to the rear part of a fixed cylinder serving as an outer cylinder. A revolving mechanism for freely rotating the lens barrel 2 at the rear part is set. The camera mounted in a photographing posture is rotated and moved. Thereby vertical photographing and horizontal photographing are facilitated. COPYRIGHT: (C)2009,JPO&INPIT
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