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Key Features
- Lightweight, Compact Follow Focus
- 3.94" 15mm Rod & Rod Clamp are Included
- Adjustable A/B Hard Stops
- Adjustable Focus Gear Ring, 0.8 MOD Gear
The F40 mini Follow Focus from SmallRig is an adjustable, manual follow focus that mounts to the left side of your lens. It features a fluid focus knob that ensures smooth focus control and precision with its adjustable A/B hard stops and is easily mounted using the included 15mm rod clamp with NATO rail. It also includes a 3.9" 15mm rod, a 0.8 MOD/43T gear, and an adjustable, belt-style focus gear ring.
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Does anyone know if the nato rail that comes with ...
Does anyone know if the nato rail that comes with this follow focus can be used with the RED Komodo 6k top mount holes?
The mount that comes with the SmallRig F40 mini Follow Focus is designed for Smallrig cages. The top mounting points on the RED Komodo are 1/4 20. And the included 15 mm mount is 1/420, so it should work with your camera.
Date published: 2024-12-05
Does this fit the bolex 16 ,rex1-2 model?
Does this fit the bolex 16 ,rex1-2 model?
The SmallRig F40 mini Follow Focus is designed to be a universal follow focus that can be used when mounted on 15mm rods with cinema, mirrorless or DSLR cameras. Considering the design of the Bolex 16 and the age of the camera, the follow focus would not be compatible.
Date published: 2024-06-05
Is this compatible with Fujinon 18-55 and ...
Is this compatible with Fujinon 18-55 and 50mm-135mm zoom lenses??
The SmallRig F40 mini Follow Focus comes with a 0.8 MOD / 43T Gear that will mesh with the focus, zoom, and aperture rings of any cine lens such as the Fujinon cine lenses.
Date published: 2025-09-21
Can you recommend a speed crank that work well ...
Can you recommend a speed crank that work well with this? Some reviews of speedcranks on BH (e.g., Cavision) complain of bad fit
The Redrock Micro microSpeedCrank (BH #RE3019FFC) will work well with the SmallRig F40 mini Follow Focus.
Date published: 2025-08-28
Does this come with the hard stop screws?
Does this come with the hard stop screws?
Yes, the SmallRig F40 mini Follow Focus comes with the A/B hard stop screws.
Date published: 2024-03-28
Is the direction of the focus gear reversible? ie:
Is the direction of the focus gear reversible? ie: can it be used with manual Nikon glass without changing wheel direction?
Yes, the SmallRig F40 mini Follow Focus wheel can be moved in either direction with no alteration to the unit.
Date published: 2026-03-17
Does this kit come with the case shown in the ...
Does this kit come with the case shown in the demo video above? The description just says "storage bag."
Yes, the SmallRig F40 mini Follow Focus includes a hard case as shown in the product video.
Date published: 2024-05-30
Whats the difference between this Whats the ...
Whats the difference between this Whats the difference between this and SmallRig Follow Focus 3010B? Is this better?
The SmallRig F40 mini Follow Focus is the updated version of the SmallRig Follow Focus 3010B, and as such, the F40 has improved mechanics and a slightly different design.
Date published: 2024-01-22