What is the point of the tiny screw on the zoom ring?

[oxband]

The screw fell off and I can't seem to find it. That said, I'm not sure what ti's purpose is and if it's worth moving heaven and earth to find...

 

[Darren Levine]

think of it like a speed crank for a follow focus. gives you an up/down lever alternate to gripping the ring. just find a bolt with the right threads and put it in there

 

[Mark Williams]

See if you can find a lens part breakdown on the web to determine the correct screw size and thread count.

 

[firehawk]

I think some people use longer ones for better control.

 

[JonathanS]

I find the nubbin pretty handy for crash zooms, when that shooting style is called for. Somewhere on the camera there's a little threaded hole for storing it when it's removed, but I can't for the life of me remember where that is.

 

[Cinesota]

The threaded hole is up front on the top handle column, below the mount point for the microphone holder. I take it off when I have the zoom set to servo control and put it back on when I use manual zoom.