The Nodal Ninja R1/R10 Lens Ring for Sigma Lensesfrom Nodal Ninja R1/R10 Lens Ring for Sigma Lensesis a dedicated ring that attaches the Sigma 8mm and 15mm Nikon and Pentax mount lenses to an R1 or R10 panorama head. It attaches via the built-in ring clamp, and is built specifically for use with the unique design and dimensions of this lens.

An included plastic insert is placed between the outer metal ring and the particular lens it is designed for. This dedicated ring allows a contoured fit and increases the area in contact with the lens. A large clamping area reduces stress on the lens when it is attached to a camera body.

Arca-Type Quick Release    90 & 30° Index Markings    Contoured Lens Ring for Added Grip    Plastic Insert Reduces Wear on Lens

To increase the area of contact with the lens, a contoured plastic insert is placed between the outer metal ring and the lens.

The large clamping area reduces stress on the lens barrel, reducing the risk of damaging it when a heavy camera body is attached.

The mount is attached close to the camera to reduce stress on the lens due to the weight of the camera body.

Roll the camera and lens in any direction, including popular 0, 60, and 90° positions.

Index marks for every 90° and 30° are located at the front and back of the ring, respectively, for easy alignment.

Having the ring mounted to the lens, rather than the camera, makes it possible to reproduce the same perspective and settings with different camera bodies - and is quicker to set up.

The Arca-type compatible quick release design can be mounted directly to other Arca-Swiss compatible systems without using the R1 or R10 panorama heads.

Its design is great for use on a monopod or high pole when you need more stability or reach.

An optional advanced rail stop is available to remember NPP settings (sold separately).

Related Questions and Answers

Q: 1. What is the inside diameter of this collar???

A: The internal diameter of that lens ring is 3.96".

Q: 2. Exact weight?

A: 202.2 grams

Q: 3. Is it possible to use this device with a star tracker?

A: GoTo telescopes (star trackers) are mount for a telescope that incorporate the tracking mechanism.There is no accommodation for connecting a tripod head to this arrangement.

Q: 4. Is it possible to attach and Arca Swiss? It appears that it was designed to screw into a camera which could take more time to mount. Thanks

A: This unit has a plate that attaches to the camera and the is attached to the main arm via a tightening knob. An arca plate won't work and adding a clamp would throw off the balancing and the positioning of the camera..

Q: 5. I have a manfrotto 303sph tripod head for shooting spherical VRTV. The Sigma 8mm is so wide it shows part of the assembly if taken to the nodal point. Will this ring solve my problem on another tripod or the 303SPH?

A: It should work with the Manfrotto 303SPH head. But you might need to shift it a little on the head.That lens is very wide and is a fisheye. Most do use very wide lenses for VRTV but not that wide.

Q: 6. What is the inside diameter of this ring clamp? Will it fit around the base of a Sigma 14-24mm F2.8 DG DN??

A: The inner diameter would be about 3.8". However, there are lens ring clamps specifically for the Sigma 14-24mm f/2.8 lens.

Q: 7. Is it possible to create spherical panoramas? Specially with non-fisheye lens (requiring more than one round of photos).

A: You can make spherical panoramas. This mount is designed to make complex panoramas with out stitching artifacts.

Q: 8. Can my Nikon Z8 be mounted on the bottom rail for single row panos? Will a 14mm lens show the end of the rail?

A: The design of the Nodal Ninja 6 Starter Package is made for the camera to be on the vertical rail. You can still use it with the Z8. A 14mm is a bit wide. There is a good chance you will see part of the rail using that wide a lens.

Q: 9. How much does the actual product weight, not including the case?

A: 202.2 g. = 7.132 oz.

Q: 10. What is the highest this will extend with the adjustment all the way up ? Jim, Charlotte, NC.

A: Approximately 13".