Often there is. If the terrain is rough with poor deflection (grapple contacts the ground a lot) then they will remove the camera to prevent damage. On the other hand, if visibility is poor or impossible from the cab, having a camera installed is a big productivity booster and so they are fairly common.
Is there a camera on the logging grapel when you do yarding in the steep woods
Often there is. If the terrain is rough with poor deflection (grapple contacts the ground a lot) then they will remove the camera to prevent damage. On the other hand, if visibility is poor or impossible from the cab, having a camera installed is a big productivity booster and so they are fairly common.
A hydraulic yarder with no guylines and a motorized grapple sure wouldn't be able to yard that. Good to see.