2021年8月29日日曜日

Supporting long lens barrel

It rained for as long as 11 days and High school baseball game was postponed 1 week, the amount of water fall almost equivalent with that of the most large river Amazon, consistent rainfall caused so many disasters everywhere, stationary front was pinched by high pressures existed on both side of Eastern and Western portions, so broadcasting reported this morning. There might be several opinions about the fixation of shooting device on the tripod, inevitable light axis venting phenomena caused by the distortion at the bayonet spring compression deformation if it is not a specific intensional shooting technology invited in field or studio large format cameras. In order to avoid upper inconvenience heavy lenses has a tripod mount stay supporting the weight directly, so the bayonet flunge does not support lens weight at all leading to reducing light axis vending phenomena. Also, the assembled device is supported at near Center of Gravity, it means that the movement of smooth panning head action in 3 dimensions. In case of inviting an old lens that lacks supporting mechanical construction, a stout metal base plate is utilized for the purposes, sometimes additional tripod mount ring is done. In case of necessity, a piece of wedge shape wood is inserted between the crevice to keep the light axis straight adequately. This kind of trivial attentiveness is not a trifle matter, but important at all.

0 件のコメント:

コメントを投稿