Replace your Delrin lens gear with this solid aluminum 20mm Simmod SIMple Fit Follow Focus Gear MD 20mmfrom Simmod. This sleek, medium lens gear slips over any lens barrel from 66 to 69mm in diameter, providing an easy and sturdy gear for your follow focus motor. Two plastic CineStops are included to act as removable A/B end stoppers on the gear.

The durable ring comes with four compressible rubber inserts in 66, 67, 68, and 69mm sizes to accommodate different barrel diameters, and shimming tape is included in case there is any play with slight barrel size differences. The gear features an 87mm outer diameter, and it measures 20mm wide.

Durable Aluminum Focus Gear    Fits 66-69mm Lens Barrel Diameters    87mm Outer Diameter, 20mm Width    0.8 MOD, 32-Pitch Gear    Includes Shim Tape, Compressible Inserts    Includes 2 Plastic CineStops

• Medium (MD) size
• Fits 66 to 69mm lens barrel
• 20mm width
• Solid aluminum construction
• 0.8 MOD/32-pitch gear
• 87mm outer diameter
• Includes 66, 67, 68, and 69mm compressible rubber inserts
• Includes shim tape for lenses with slight barrel size differences
• Includes two CineStops for removable A/B end points

Related Questions and Answers

Q: 1. Sir , I have 3 lens include Canon 1635mm , Canon 24105mm and Sigma 70200. I want to ask which 3 focus ring of your products are suitable for my lens ? Thank you.

A: This is from the Cool-Lux website. No listing for Sigma.16-35 f/2.8L (focus ring) LG7677 76.2 16-35 f/2.8L (zoom ring) LG7273 72.224-105 f/4L (focus ring) LG8283 82.2 24-105 f/4L (zoom ring) LG7879 78.6

Q: 2. what size is needed for the sony 24-70 version ii? what about the 70-200 ii (Gmaster lenses)

A: To find the correct size for your lens, please follow the instructions on this page. https://store.cool-lux.com/collections/luxgears

Q: 3. Don’t see the Sigma 28-70 E mount listed. Which one would fit it?

A: Unfortunately , there are many untested lens models. However, Cool Lux offers a printable Luxgear ruler to measure lenses that are not on the tested list. RULER: https://bit.ly/3UvXRzb

Q: 4. would this fit the 24-105 sigma art lens?

A: No. It is too small. The Sigma Art Lens diameter is 88.6mm and this ring is for 82-83.9 mm lenses.

Q: 5. Will this work on a Sony FE 50mm 1.8?

A: Yes it will. The Sony FE 50MM 1.8, B&H # SO5018F, has an outer diameter of 68.6mm. This ring works with lenses between 68 to 69.9mm in diameter.

Q: 6. Can the SmallRig Silicone Gear be used with the Tilta Tiltaing Pocket Follow Focus?

A: No, the SmallRig Silicone Gear is not compatible with the Tilta Tiltaing Pocket Follow Focus.

Q: 7. Which size would fit best on a mk.2 sony gm 70-200mm f2.8 lens? I have seemed to have ordered the incorrect size as i thought it went by filter diameter

A: Unfortunately Cool-Lux does not have the gear size for this lens model. Please use the following ruler to measure your lens for the correct size https://bit.ly/3a9ObVB Cool-Lux tested lens chart https://bit.ly/3N2RMDH

Q: 8. I have already made mistakes 2 times. What diameter should I use with Canon 100-400 mkII? On the widest part of focus ring.

A: I wish I could help but I have Nikon lenses myself. Best thing to do is check the specs on the canon webpage or contact canon direct to get the lens diameter.Failing that take a piece of masking tape and put it tightly around the lens barrel where the focus ring is. Take a pen or marker and put a line on the tape so it over laps the tape. Take the tape off and accurately measure the distance to get the circumference of the lens. Divide this number by Pi or 3.1416 to get your diameter of the lens.

Q: 9. Will this ring fit the focus ring on a canon 100-400 L IS ii? I realize the outer focus ring diameter is 94mm… but after measuring with the Cool Lux Gear sizing key (paper print out), the inner diameter of the focus ring falls in the 90 to 91.9mm zone. Would it possibiy work?

A: We do not recommend using this ring as it may be too small for the lens.

Q: 10. What size do I purchase for use with the Voigtlander Nokton 25mm f/0.95 Type II Lens?

A: Please go to this web page and print out this template to determine the diameter of the lens and the matching size LuxGear. http://bit.ly/2phHhl7