This FRA-17X32C Riser Assembly from Field Optics Research is a center column extension for Field Optics Research tripods. A bottom 3/8"-16 accessory thread allows it to be attached to tripods or other support systems that feature a 3/8"-16 mount, including for use as an extension to an existing center column.

The FRA-17X32C Riser Assembly features a 17" height, a reversible 3/8"-16 and 1/4"-20 mount along its top, and it is constructed from carbon fiber to maximize durability while remaining lightweight.

17" Center Column Extension    3/8"-16 / 1/4"-20 Reversible Mount    3/8"-16 Accessory Thread    Carbon Fiber Construction

Related Questions and Answers

Q: 1. Can the handle be removed?

A: Yes, the handle on the Field Optics Research Ultra Low-Profile Pan Head can be removed.

Q: 2. What thread are these? 1/4 - 20?

A: The Field Optics Small Tripod Spike & Basket Kit would offer 3/8-16" threading.

Q: 3. Specifications for this head list 6.6 pound (or about 3 kg) capacity. Is that realistic, or is it an overoptimistic number (like many specifications are)? I'd mostly use this with lightweight equipment, but am wondering about occasional use of a DSLR rig weighing about 3.5 pounds (1.6 kg), like an APS-C DSLR and 200mm f/2.8 lens. Thanks very much.

A: Yes, the indicated 6.6 lb (2.99 kg) maximum load capacity for the Field Optics Research FPH-200 Pan Head is correct.

Q: 4. Well this seems silly to ask, but I'm struggling with this. How do I reverse the mount?

A: The very top disk on the Field Optics Research FTRA-5-9X32C Telescoping Riser Assembly should unscrew so you can reverse it. If that does not work please come into B&H chat.

Q: 5. Can this head be fitted with a 3/8 screw?

A: The Base Mount is 3/8"-16. The Camera Mounting Screw is 1/4"-20. If wishing to mount a camera with a 3/8"-16 connection. One option is a 3/8"-16 to 1/4"-20 Reducer Bushing like the one linked here. https://bhpho.to/3qNW8US. The other option is to get an Arca type plate with this size screw, like the Sirui TY-70A Quick Release Plate linked here. https://bhpho.to/3hjEwNG

Q: 6. What is he diameter?

A: The Field Optics Research FRA-12X32C Riser Assembly is approxemelty 32mm diameter.

Q: 7. Is the ARCA-type plate the same standard size as other ARCA-plate products? The reason I ask is that another tripod I bought a while ago had an "ARCA-style" clamp, but it was a mini-size even thought it was indeed ARCA-style!

A: There is no true "standard" size arca-swiss plate, but the plate that comes with the Field Optics FPH-200 is a relatively normal size and adequate for DSLRs and mirrorless cameras, or long-lens tripod collars.

Q: 8. What is the base diameter? Thank you.

A: I contacted Field Optics concerning your inquiry. According to the manufacturer, they state the base diameter is "just a tick under 2 inches."

Q: 9. Can it fix on Nikon d780 ?

A: No you won't be able to. This piece is designed for the Nikon D750 not the D780, the D780 has a different footprint than the D750.

Q: 10. Should this be used on a sandy beach? If so, which basket would be best on sand?

A: Field Optics Research Large Tripod Spike & Basket Kit will work well at a sandy beach. If it is very soft sand the snow basket will work well. If it is harder sand then the mud basket will work better.