Locking X, Y, Z axes
Setting several camera movement parameters at the same time can be difficult at the beginning, so you can make this process easier by disabling some of the movement possibilities. This is done with a function that blocks the axes (Lock- unlock axis). The icons of this function are located in the upper left part of the screen (see the picture below)
n the picture above, you can see a situation where a camera movement in Y and Z axes has been locked. Axes’ icons have turned color and picture of padlock has appeared. Movement in the X axis is allowed (if you also block the X axis, the camera will be completely immobilized).
In the case shown above, the camera will be able to move only to the left and to the right when you use the left button of the mouse, and to rotate up and down when you use the right button.
To illustrate this situation, you can imagine that the camera moves along a long tube and can move only lengthways or along its perimeter.
When you lock X and Z axes – Y axis is unrestrained. In this case, the camera will be able to move only up and down when you use the left mouse button, and to rotate to the right and to the left if you use the right button.
In case of locking X and Y axes – you have Z axis unrestrained.
In such circumstances, only a mouse scroll operates, which corresponds to the camera trolley movement forwards and in backwards. The rotation can be achieved through changing the Z value in the Rotation section (by clicking on the up and down arrows).
This kind of blocking the two axes allows for accurate and precise positioning of the camera in the studio, in one of the selected axes. After adjusting the camera in this axis, you can move on to the next one, and so on, until you achieve the desired camera view. You have then an exact position of the camera (a shot) set.
You may also block just one of the axes, enjoying the greater freedom of camera movement, but it is then more difficult to position a camera accurately and precisely.