Seamless Follow Focus gear ring for Canon 100mm EF 2.8 L Series Macro Lens

thingiverse

https://youtu.be/-XsZ_ZND6uI This follow focus gear ring Module 0.8 is specifically designed for the Canon EF 100mm 2.8 L Series macro lens. This lens is an excellent choice, and adding a follow focus ring to it greatly improves both video and stop-motion capabilities. After searching for a suitable module to print or buy without success, and facing expensive options above $50, I decided to take on the challenge of creating one myself. The result fits perfectly on my lens, and I have added internal support rods for better grip and to prevent the gear from rotating freely around the lens. If you find this snug fit too tight, simply file or sand the gripper rods to enlarge the opening without compromising its structural integrity. I am open to making more modules for different lenses if there is sufficient interest. A test fit is essential, as I have observed a drift of 0.5 to 1.25mm that can significantly affect the fit.