Custom Follow Focus Gear
How to measure your lens for ordering a custom Follow Focus Gear:
Measure your lens for ordering a custom Follow Focus Gear:
If you don’t want to send it your lens, here is a manual how you can measure the lens by your self:
You have to measure the perimeter of the focus ring from your lens. You can do this by using a caliper or flexible measuring tape. We recommend the measuring tape. If you don’t have one at home – just download this measuring paper:
Measurement for Custom Follow Focus Gear
(Make shure to print it in 100%size!):
If you are measuring the diameter, you just have to multiply it with 3.16 to get the perimeter.
1. Measure the perimeter of your focus ring of the lens
To find out the required inner perimeter of the gear, lay the measuring tape around the focusring of your lens and pull it tightly together. In this example the perimeter of the lens ist 246 mm.
2. Choose the width of your Custom Follow Focus Gear
The width of our gears is usually 10mm, which is enough for the common follow focus systems. Some lenses have a smaller focus ring. Make sure that the width of the gear is slightly smaller than the width of your focus ring of the lens.
3. Choose the thickness of your Custom Follow Focus Gear
The last specification for the custom follow focus gear is the thickness of the gear. The thickness is the difference from the inside diameter to the outside diameter of the Follow Focus Ring. We usually produce our gears with a thickness of 8mm which is perfect for a good ring stiffness.
4. Choose the Material of your Custom Follow Focus Gear
Flexible Follow Focus Gearchs which comes with the most Follow Focus systems or wireless focus system do have an overlap, which makes it hard to attatch it good. If its not installed right, you can’t reach the ends of the focus. Thats why its much easier to work with a custom Follow Focus Gear which fits perfect for your lens.
RIGHT NOW WE ONLY CAN OFFER HARD GEARS