The Sigma TS-131 Tripod Socket is specifically designed for the MC-21 Mount Converter. This aluminum foot features a 1/4"-20 socket for attaching to an additional plate.

For Sigma MC-21 Mount Converter    1/4"-20 Socket    Aluminum Build

Related Questions and Answers

Q: 1. Will this work with the sigma 100-400 for Canon?

A: The Sigma TS-111 Tripod Socket Kit is meant for the 100-400mm f/5-6.3 DG DN OS Contemporary Lens for Sony E & Leica L.

Q: 2. Does this need a special plate to attach to Wimberley Mono Gimbal head-MH-100? Can I use a FLM 50 or 40 arc plate if one needed?

A: The Sigma TS-111 works as an arca-swiss compatible tripod foot and will fit in any arca-swiss clamp. Depending on your set-up, you might need a longer plate to balance it on a gimbal head, although with the MH100 you shouldn't have much issue. Yes, you can use those plates if necessary, but there isn't much benefit to using them in this case.

Q: 3. I know the description specifically calls out the 105mm f/1.4, but is there any chance this fits the 150-600mm Contemporary zoom Sigma makes?

A: Unfortunately, it will not fit.

Q: 4. Is the TS-111 compatible with RRS lever release clamps? Sigma's site indicates it may not work with some lever type clamps.

A: Yes this is compatible and will work with the RRS lever clamping heads.

Q: 5. What is the diameter of the tripod collar mount on the lens?

A: When fully loosened, the inner diameter is 86mm where it accepts the Sigma lens' collar pin. Outside of the groove, it is 83mm.

Q: 6. I guess it will but, can this collar work for a Sigma 105mm f/2.8 EX DG OS HSM Macro Lens for Canon EF?

A: There is no collar for the macro lens. The size of the macro lens is not large enough to require a collar. However, you could still use this Manfrotto universal long lens support if you feel more support is needed: https://bhpho.to/3xmhJWu

Q: 7. Will this work on the peak design tripod?

A: Sigma TS-111 Tripod Socket Kit BH #SIATC900 will work on the peak design tripod.

Q: 8. The TS-111 is listed on the Sigma USA site as the collar that’s compatible with the new 100-400mm f5-6.3 DG DN OS C lens for E and L mounts, but the descriptions still don’t reflect that... Can anyone confirm if this is the correct collar for the new 100-400?

A: YES, the TS-111 is the also the proper collar for the 100-400mm.

Q: 9. can someone post a picture of the ts-111 properly attached to a sigma100 --400m lens?

A: Hi Randall! Unfortunately this accessory isn't compatible with the Sigma 100-400mm.

Q: 10. Does this tripod collar have a 1/4-20 thread on the bottom of the tripod foot for mounting or just the arca bracket? I was unable to find an image of the bottom of the tripod foot anywhere, but one of the review images shows what appears to be some kind of thread on the bottom. Thanks!

A: Yeah, it has a 1/4-20 thread on the bottom and the base itself is an arca base.