Blender camera management skill.
Use set_camera_properties with lens in millimetres for perspective focal
length, and ortho_scale in scene units for orthographic framing. Changing
lens does not change the orthographic view width. list_cameras reports
both values and the clipping range for readback.
Camera requests validate numeric values and the effective clipping range before changing camera properties. Invalid requests leave those properties unchanged. Discover the explicit tool schemas and call examples before use.