Cavision RFGR80 Follow Focus Gear Ring

Cavision RFGR80 Follow Focus Gear Ring

Cavision RFGR80 Follow Focus Gear Ring

B&H # CARFGR80 MFR # RFGR80
Cavision RFGR80 Follow Focus Gear Ring

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Product Highlights

  • Compatible with 78-81mm Lenses
  • For Fujinon (mod 0.6) Gear Type
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  • 1Description

The Cavision RFGR80 is a gear ring that can be clamped onto a focus ring, allowing for the use of a follow focus system. It is specifically designed for lenses between 78mm and 81mm.

Note: For DSLR lenses, the focus barrel size does not correspond to the filter thread size. Please measure the diameter (or circumference divided by 3.14) of the lens's focus barrel to determine the correct gear ring.

In the Box
Cavision RFGR80 Follow Focus Gear Ring
  • 1-Year Warranty
  • Table of Contents
    • 1Description
    Compatibility 78-81mm Lenses
    Gear Pitch Fujinon (mod 0.6) Gear Type
    Packaging Infotrwucuwaytbebvazeudyzf
    Package Weight 0.01 lb
    Box Dimensions (LxWxH) 3.9 x 3.5 x 0.4"
    RFGR80 Follow Focus Gear Ring is rated 2.8 out of 5 by 6.
    Rated 1 out of 5 by from Not functional Sadly it seems to be practically impossible to match up these gear rings with Canon lenses. I tried many different measurements and gear rings and still have not found a ring that works well with my 17-40L, 85 1.8, or 50 macro. I am using foam and electrical tape to pad out the much too large gear rings for a frustrating but 50% usable follow focus system. Why not specify what gear rings work with what lenses? Come on, Cavision.
    Date published: 2011-01-13
    Rated 4 out of 5 by from Good ring but can be tricky to size These rings work fine, but I found them a little tricky to size to the lens. I generally needed to go up one size based on my measurements. In addition, there are gaps between some sizes, so I had to buy the next size up and shim a couple of lenses. All of my lens are Canon lenses for the 7D. Note that none of the rings I have gotten have the stop included.
    Date published: 2010-10-11
    Rated 2 out of 5 by from It's not what it looks like Two things I don't like about this product: 1.- It doesn't fit perfectly into my Canon Lens (24-105mm), although it says it would in the specifications. 2.- The ring didn't come with the stop that is shown in the picture. Still, it does its work.
    Date published: 2011-05-02
    Rated 1 out of 5 by from Brittle plastic - be very careful. While placing the ring (barely any force) on the lense it snapped. Had to repair/reinforce it with a piece of thin plastic and epoxy.
    Date published: 2012-05-23
    Rated 4 out of 5 by from great and works well great for the 5 D mark 2
    Date published: 2010-06-01
    Rated 5 out of 5 by from great works fine
    Date published: 2014-08-13
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