env_zoom is an existing point entity available with all versions of Mapbase.

An entity that can be used to control the player’s FOV. Useful for scenes where the player’s view is being controlled, or player-usable binoculars/telescopes, etc.



Inputs

- UnZoomWithRate <void>
Stop controlling the player's FOV and returns to the original FOV with the same rate it used to reach it.
- SetZoomRate <float>
Sets the amount of time it should take to reach the specified FOV.