The 80mm to 95mm Clamp-on Step-up Ring from Cavision is a combination of Caivisions CR95-85 clamp-on ring and ARP380 adapter ring. It features a rear clamp with an inside diameter of 80mm. The clamp can be fitted onto a lens and provides a threaded interface for 95mm filters.

80mm Inside Diameter Clamp    95mm Front Filter Thread

80 mm inside diameter rear clamp

95 mm front filter thread

Related Questions and Answers

Q: 1. Does the bottom of the 3/8" hole have a "rosette" or a slot as shown? My old version of this has a "rosette".

A: Really Right Stuff B2-LLR-II Lever-Release Clamp (80mm) has a rosette.The 60mm version display a photo with the rosette.

Q: 2. does this work on PH-20 gimbal?

A: Sirui PH-20 Gimbal Head already has a built in clamp and you could not add Really Right Stuff B2-LLR-II Lever-Release Clamp (80mm) to it because the gimbal cannot work with two clamps.

Q: 3. Hello, will this clamp fit on my Oben BZ-226T ballhead ? Thank you

A: Yes if you just use an allen/hex key to unscrew the plate on the ball head, then you could replace it with this RRS B2-LLR-II.

Q: 4. The centre hole accepts a 3/8-16 post. What is the maximum length of that post, before it protrudes through the top & interferes with the clamp?

A: It is 12mm thick

Q: 5. what are the proper dimensions for the plate that can go on this?

A: The Really Right Stuff B2-LLR-II Lever-Release Clamp works best with RRS plates that are 2.9" or longer.

Q: 6. Will this clamp fit on another brand Ball Head I have a Sirui?

A: I mounted mine to a FLM ballhead using the provided 3/8 to 1/4 x20. Works great

Q: 7. Can this be fitted on a Sirui L- 20S ...?

A: It technically can but it will be off center when you screw it onto the sirui basplate.

Q: 8. Can this B2-LLR-II be attached to the Monopod Head MH-01 at any angle?

A: Yes it si compatible with the MH-01 head and can be used at any angle.

Q: 9. Does this B2-LLR-II come with the center bolt to mount to a BH-55.

A: Yes, an M6 screw and 1/4-20 screw are available inside the pack of the Really Right Stuff B2-LLR-II Lever-Release Clamp.

Q: 10. Can I screw it to my manfrotto 410 geared head?

A: You may use the RC4 plate included with the Manfrotto 410 to screw into the bottom of this RRS clamp, in order to use an Arca type plate.