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一、三脚架的性能经反复操作验明三脚架具有如下性能: 1、踩固一根架腿,双手握着其余两根架腿适当移动可将架头大致安平对中。 2、在上述状况下,独立踩固一根架腿,架头随即歪斜,对中亦被破坏。但是,松开架腿的伸缩箍套旋扭,在脚尖原位伸缩架腿,将架头推平,即把架头恢复到原来安平对中的位置。 3、使用光学对点器时,旋动脚螺旋,长水准气泡每移动一格,点位与对点器十字中心约偏离一毫米,即脚螺旋对光学对点器对中的影响甚大。相反,在对点
First, the performance of the tripod After repeated operation to verify that the tripod has the following properties: 1, stepping on a solid legs, hands holding the rest two legs appropriate to move the head can be roughly flat. 2, under the above conditions, an independent stepping on a stand legs, head immediately skewed, the center has also been destroyed. However, the release of the legs of the telescopic cuff twist, retract the legs in situ toe tip, the head flat, that is, the head back to the original position of peace. 3, the use of optical device on the point, the rotation of the foot screw, a standard bubble every move, the point and the center of the cross about a deviation of one millimeter, that is, the pair of optical fiber pairs on the impact of a great influence. On the contrary, at the point