The Foba F-CEBLO 3/8" to 1/4" Thread Adapter for Combitube features a 3/8"-16 thread at its bottom and a 1/4"-20 stud on top. This piece could be useful, for instance, for adapting the 3/8"-16 stud on a lighting stand for the addition of a smaller camera that has a 1/4"-20 thread.

Part of Foba's Combitube modular grip system, the F-CEBLO adapter is bored radially for a tightening bar.

1/4"-20 Stud on Top    3/8"-16 Thread Underneath    Bored Radially for Tightening Bar

Related Questions and Answers

Q: 1. Will this work with my AFS-S Micro Nikkor 40mm and my D7200? If it will, do I need extension tubes? If I do, will the Vello Autofocus Extension tube set work, and which tube would I need; 12mm, 20mm, or 36mm?

A: I have this setup (albeit a 7100) and it works perfectly. However, if you are planning to duplicate more than a few slides, it can prove very tedious, as you may need to adjust and refocus for each slide.

Q: 2. Is it compatible with the new Speedlite EL-5?

A: The Canon SBA-EL Bounce Adapter is compatible with Canon Speedlite EL-1 and not compatible with Canon Speedlite EL-5.

Q: 3. What is the voltage and current?

A: Its input is AC 110~240V, 50/60Hz 0.6A, and its output is DC 8.4V = 2.5A.

Q: 4. Will this fit a Z 50mm lens?

A: Depends on 50mm lens used. I would suggest using the following for a good shooting experience Nikon 55mm f/2.8 Micro-Nikon lens and PK-13 Extension Tube.

Q: 5. Will this adapter work, mounted on a sony a7c camera, with a sony 70-400mm f/4-5.6 G SAL-70400G lens? What functions could potentially be lost?

A: This Sony LA-EA5 A-Mount to E-Mount Adapter BH #SOLAEA5 will work on a Sony a7C Mirrorless Camera. Theoretically, Focal Plane Phase Detection AF, AF/AE Tracking up to 2.5 FPS and autofocus function of the Sony 70-400mm f/4-5.6 G SSM II Lens BH #SO704004G2 will work.

Q: 6. Will it work with a Canon full frame and my ef 100mm macro?

A: Not without a 58mm to 52mm step down adapter ring. And you may need to get an extension tube to get the image to cover the whole sensor. It has a 52mm thread which fits Canon's 50mm macro lens but the 100mm has a 58mm filter thread. It does work really well on Canon's 50mm macro with a 25mm extension tube. I'm getting great results.

Q: 7. It is compatible with the Sigma fp Mirrorless Digital Camera?

A: This would be able to work with the Sigma fp Mirrorless camera.

Q: 8. can I use this adapter for my K1? Thank you Jerry

A: Yes! This is the correct power supply for the K-1.

Q: 9. Will this adapter attach Vivitar Series 1Lens to Cannon EOS 800D? Thank you

A: Vivitar has made many "Series 1" lenses with different kinds of mounts. If you have a T mount version of a Series 1 lens then the Vivitar T-Mount to Canon EF-Mount Adapter (B&H# VIHFT2CAN) would indeed work to mount your T mount Series 1 lens on the Canon 800D or Canon Rebel T7i, the latter being what your camera is called in North America.

Q: 10. Do you need the EF-EOS-R adapter to use a tamron 18-400 with the Canon R7?

A: The Canon Mount Adapter EF-EOS R is required to use the Tamron 18-400mm f/3.5-6.3 Di II VC HLD Lens on the Canon EF on the Canon EOS R7 Mirrorless Camera.