Handy manual zoom hack

Poodus

New member
I love my AF100, but like many of you all, I grew up with servo zoom. Until I can afford one of these awesome Frankenstein ENG style lens rigs, I needed a different way to get reasonably smooth zooms. Between a phone call with an old mentor, fighting with jerky zoom on a still lens, and a few days in Physics class, I came up with a super-cheap and simple trick for doing smoother hand-held zooms.

Since torque is largely determined by the length of the "lever-arm" you're turning, I realized that by simply making the zoom dial thicker, you'd be increasing that length and giving yourself a mechanical advantage which in turn helps you make smoother movements.

I tried it out by meticulously and gently applying this layer of tape to the lens (it comes off easily, too). It significantly improved the zooming action!

What do you experts out there think of this? Maybe someone has a more elegant solution?
 

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Has anyone tried using a 'follow focus' device on the zoom ring instead of the focus ring(I haven't)? Would that not give a smooth zoom from the lens? Just a thought.
 
I'm sure that'd work just fine. Anyone have experience with that? From what I've seen, it seems like many shooters are valuing the ability to have that control over focus than that control over zoom.
 
I'll switch my follow focus over to zoom if the shot calls for it, but I almost never zoom. Wes Anderson, and sports seem to love zooms, and Wes uses it to look nostalgic from when zooms just came out and it was the trick shot.
 
Two sellers on ebay selling these devices. I went with the lens strap and it works great!!! Simple and easy for manual focusing and zooming!

Lens Strap Focus System.jpgEZ Lever.jpgEZ Lever for Focus and Zoom.jpgLens Strap.jpg
 
> Has anyone tried using a 'follow focus' device on the zoom ring instead of the focus ring

Yes. Did it on a national spot with a Varicam. The Director wanted a super imperceptibly slow zoom in, far slower than what the servo could do. Pulled the follow focus back an inch and it worked very nice.
 
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