The three-axislens mount allows for either wall or ceiling installation.
三轴镜头支架能让摄像机安装在墙上或者天花板上。
2
Spherical Aberration — causes light rays passing through a lens (or reflected from a mirror) at different distances from the optical center to come to focus at different points on the axis.
球差-使以不同孔径角穿过透镜(或从镜面上发射)的光线不能聚焦在轴上的同一点。
3
In fact, it is not like the film and moving the camera is similar to the place, but, with the film is a movement of the follower movement along the axis of the lens, it is relatively fixed picture.