I though this might be interesting for some people getting Nikkor lenses until the Red Zoom ships.
We got a cheap Redrock Follow Focus some months ago for our Nikkor lenses on a P&S Mini35 which we use to train for the RED ONE. But the fact that it has a backlash/play of 2° was killing us - it makes it hardly usable. So we got a $2k Arri follow focus which happens to work perfectly with the Redrock lens gears.
Instead of throwing away the Redrock FF I though I'd give it a try and fix that play. The item causing the problem is a Huco L-Box Gearbox with acetal gears which costs about $30. It is noticeable that the play is reduced if you push both axles into the box. So we milled the box open and inserted a very thin shim which will keep the gears in an optimal position.
And voila! The reassembled follow focus now has zero play and works as well as the Arri FF from a mechanical point of view. The usage of the Arri one is still nicer but as the Redrock one only costs 1/4 of the price it is definitely a bargain.
If anybody in the RED community is interested I can paste photos of how the procedure works or for those who do not have a milling cutter in their garage we could generate a bunch of fixed gearboxes and mail them (preferably in Europe) at cost price. The exchange of the box can be performed easily with an Allen key.
Jack
We got a cheap Redrock Follow Focus some months ago for our Nikkor lenses on a P&S Mini35 which we use to train for the RED ONE. But the fact that it has a backlash/play of 2° was killing us - it makes it hardly usable. So we got a $2k Arri follow focus which happens to work perfectly with the Redrock lens gears.
Instead of throwing away the Redrock FF I though I'd give it a try and fix that play. The item causing the problem is a Huco L-Box Gearbox with acetal gears which costs about $30. It is noticeable that the play is reduced if you push both axles into the box. So we milled the box open and inserted a very thin shim which will keep the gears in an optimal position.
And voila! The reassembled follow focus now has zero play and works as well as the Arri FF from a mechanical point of view. The usage of the Arri one is still nicer but as the Redrock one only costs 1/4 of the price it is definitely a bargain.
If anybody in the RED community is interested I can paste photos of how the procedure works or for those who do not have a milling cutter in their garage we could generate a bunch of fixed gearboxes and mail them (preferably in Europe) at cost price. The exchange of the box can be performed easily with an Allen key.
Jack
