Issues with Cinevate Durus Gear Ring + Durus Focus Lever on E-Mount 18-200 lens

B

Budgieboots

Well-known member
Hello,

I recently invested in a Cinevate Follow Focus Gear and Lever Kit for my E-mount 18-200 lens.
http://www.bhphotovideo.com/c/produ...e_Inc_CIFFAS000020_Follow_Focus_Gear_and.html


I seem to be running into an issue regarding how tight to have the spokes.
If I tighten too much, I can't move the focus ring at all, too little, and the entire gear shifts off the focus ring.

With the small middle ground that exists, pulling focus is still not as smooth as I expected it would be using the lever. It feels like it jerks and stutters.
It actually feels smoother to physically handle the focus ring, rather than using the focus lever.

Furthermore, it would appear that you can't have a "snug grip" if you want to have any sort of smooth focus pulling -- a nudge of the gear pushes it off the focus ring, and if you're not careful with how much force you apply to the focus lever, you can pull the gear off the focus ring.

Now, I've also been reading that E-Mount lenses have a reputation for not working well with any sort of follow focus systems.


Any sort of advice or similar experiences to this would be appreciated.
 
Last edited:
The problem is, it´s not a mechanical focus. When you turn that ring on the lens your trigger a motor, that does the work.
To make things even more painful, it responds not linear.

I´m afraid there is no real solution for this. The SEL is a nice run&gun lens and the auto focus works surprisingly good.
You can still use your FF for the zoom ring, if that´s any consolation.

Frank
 
Postmaster said:
The problem is, it´s not a mechanical focus. When you turn that ring on the lens your trigger a motor, that does the work.
To make things even more painful, it responds not linear.

I´m afraid there is no real solution for this. The SEL is a nice run&gun lens and the auto focus works surprisingly good.
You can still use your FF for the zoom ring, if that´s any consolation.

Frank
Click to expand...

Thank you for the explanation Frank
 
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