The FotodioX 77mm-186mm WonderPana XL Aluminum Step-Up Ring permits the use of Fotodiox 186mm filters and other round, 186mm threaded filters on lenses with 77mm front filter threads. It is compatible with the FotodioX WonderPana 8.0" Holder Bracket, which enables the use of two 2.0mm-thick filters measuring 7.9" wide, or one 2.0mm-thick filter measuring 7.9" wide along with one FotodioX 186mm round filter behind it.

This step-up ring features an aluminum-alloy construction that has a corrosion-resistant, matte black, anodized finish for durability and to minimize reflections.

Use 186mm Filters on 77mm Lens    Compatible with FotodioX 186mm Filters    Compatible with 8.0" Holder Bracket    Matte Black Finish Minimizes Reflections    Corrosion-Resistant Anodized Aluminum

Related Questions and Answers

Q: 1. Does this work with older Wolverine (non-revolution) filters?

A: Yes, the Kase Wolverine Revolution Magnetic Step-Up Ring (82-95mm) is compatible with both Wolverine and Revolution line of filters.

Q: 2. What is the difference between the kit and just the step-up ring? I see that both options are for sale

A: The Kase Wolverine Revolution Magnetic Step-Up Ring Kit (67-77mm) comes with inlaid rings which allow the filter to be closer to the lens and allow for an unthreaded magnetic filter to snap on the ring. The Kase Wolverine Revolution Magnetic Step-Up Ring (67-77mm) is just the step-up ring.

Q: 3. Will this fit the Sigma 14-24 DG N sony e Mount?

A: Yes, if it is the Sigma DG DN Art lens.

Q: 4. Any issues using this Step-Up ring with a PolarPro 82mm Peter McKinnon Signature Edition II Variable ND 1.8 to 2.7 Filter?

A: The Sensei PRO 72-82mm Brass Step-Up Ring will work with the PolarPro 82mm Peter McKinnon Signature Edition II Variable ND 1.8 to 2.7 Filter.

Q: 5. Do I need to buy another lens ring to fix this filter? This adapter is immediately attached to the lens or you need to buy something else? What is included with this filter?

A: What you see is in the photos is all you need if you want to use the polarizer. In the Box: FotodioX 186mm Slim Circular Polarizer Filter Filter Pouch Limited 2-Year Warranty FotodioX 186mm Center-Pinch Snap-On Lens Cap for Select WonderPana Systems & Filters Limited 2-Year Warranty WonderPana FreeArc XL Core Unit for Sigma 14-24mm f/2.8 DG HSM Art Lens Limited 2-Year Warranty If you want to use the square or rectangular filters, then you will need the brackets. Click on the link below to view; https://bhpho.to/32VgMWY

Q: 6. Will this work with sigma 18-35 without vignetting ?

A: This product may cause vignetting at the widest focal length.

Q: 7. Which lenses should i use with this filter on dslr full frame sensors ???

A: I recommend at least a 50mm lens that opens at 1.4 or 1.8. Beyond that aperture, the ovals will appear cut in half.

Q: 8. I need to use a clear or haze filter. Is it possible to utilize more than one filter at a time-a polarizer and an ND filter?

A: You cannot stack a uv filter on top of the Slim Circular Polarizer Filter included with the FotodioX WonderPana FreeArc XL Core Unit Kit for Sigma 14-24mm Art Lens with 186mm Slim Circular Polarizer Filter. Fotodiox 186mm filters are not designed with a front threads.

Q: 9. Since front holder and rear collar when assembled block hood petal cutouts of 11-24mm lens, how bad is the vignetting?

A: The FotodioX WonderPana FreeArc XL Core Unit Kit for Canon 11-24mm Lens with 186mm Slim Circular Polarizer Filter will not vignette when mounted to the Canon 11-24mm Lens.

Q: 10. Any way to block lens flares with some sort of hood?

A: The 186mm Slim Circular Polarizer included with this kit does not have front threads, nor is there a hood to fit.