Replace your Delrin lens gear with this solid aluminum 10mm Simmod SIMple Fit Follow Focus Gear MD 10mmfrom 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 10mm wide.

Durable Aluminum Focus Gear    Fits 66-69mm Lens Barrel Diameters    87mm Outer Diameter, 10mm 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
• 10mm 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. Will this fit a Sigma 24-105 ?

A: It will not. The Sigma 24-105mm, BH #SI241054C, has an 88.6mm front diameter. It is too large for this gear ring. Instead you will need BH #COLG8889 which is for lenses between 88 to 89.9mm. https://bhpho.to/3bnrtEK

Q: 2. Does this work for the Sigma 18-35 art lens?

A: It will not. The Sigma Art 18-35mm lens has a outer diameter of 78mm. Instead you would want the Cool-Lux LuxGear Follow Focus Gear Ring (78 to 79.9mm), B&H # COLG7879. This should work with that lens. https://bhpho.to/2r2qXr6

Q: 3. As for the Sigma 18-35mm Art lens, will it fit both rings (zoom & focus).... or is the zoom diameter different from the focus diameter?

A: zoom is different, smaller. my caliper measures 75mm.

Q: 4. Is there any way to get one of these to fit on Fujinon lenses (specifically the 16-55) with their goofy expanded bevel behind the initial ring diameter and contracted lens width inside it?

A: On unusual lenses like the Fujifilm XF 16-55mm f/2.8 R LM WR Lens B&H # FU165528, we suggest this type of lens gear since it can fit on any lenses flat service. Wide Open Camera Universal Lens Gear B&H # WILU.

Q: 5. Will this work with the neewer follow focus?

A: This features standard 0.8-mod/32-pitch geared teeth. If it will work depends on the exact follow focus, but it more than likely will work.

Q: 6. Will this ring fit the focus ring on a canon 100-400 L IS ii?

A: It will not, this ring is far too small for that lens. The Canon EF 100-400mm f/4.5-5.6L IS II USM Lens, BH #CA1004002LIS, has an outer diameter of 94mm. Instead we recommend a Universal Lens Gear like BH #WILU. https://bhpho.to/2mtNn2G

Q: 7. Can anyone tell me what size I should buy for sony 24-105 g f4?

A: For the Sony 24-105mm f/4 lens, you will need a 76-77.9mm ring. https://www.bhphotovideo.com/c/product/1219602-REG/cool_lux_lg7677_luxgear_76_to_77_9mm.html

Q: 8. Will this gear function well with an Ikan Stratus follow focus?

A: Yes it will.

Q: 9. Does it fit with the Canon 17-40 f4 L series lens, 24-105 f4 L series and 16-35 f4 L series? thanks

A: This ring is compatible with the 17-40mm F4 lens. However for the 24-105 F4 and the 16-35mm F4 you will need the Gear Ring that works with an outer diameter of 82 to 83.9mm which is BH #COLG8283. https://bhpho.to/2N5CJfx

Q: 10. Will this work with tilta nucleus nano?

A: Yes, the Cool-Lux LuxGear Follow Focus Gear Ring features standard 0.8-mod/32-pitch geared teeth that makes it compatible with cine-style follow focus systems, including the Tilta Nucleus Nano.