The FotodioX 82mm-145mm WonderPana FreeArc Step-Up Ringpermits the use of Fotodiox 145mm filters and other round, 145mm threaded filters on lenses with 82mm front filter threads. It features a 360° rotating design to better accommodate polarizing or graduated filters that are enhanced by varied positioning, and is compatible with the FotodioX WonderPana 6.6" Holder Bracket. That holder bracket enables the use of two 2.5 to 4.0mm-thick filters measuring 6.6" wide, or one 2.5 to 4.0mm-thick filter measuring 6.6" wide along with one FotodioX 145mm 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 145mm Filters on 82mm Lens    Compatible with FotodioX 145mm Filters    Compatible with 6.6" Holder Bracket    Rotates 360°    Matte Black Finish Minimizes Reflections    Corrosion-Resistant Anodized Aluminum

Related Questions and Answers

Q: 1. ok so I am planing on purchasing filter with 77mm thread and I want to also use it on a 58mm and 67mm threaded lenses so would the 58-77mm step up work for all 3 lenses? 67 being in the middle? Or do I need 2 separet step up filters? One 58-77mm and one 67-77mm

A: Dear friend, the reason to buy a bigger filter for smaller lens is to avoid vignetting at wide setting. For your case (filter 77mm / lenses 58mm and 67mm) you need two step-up rings. One from 58 77 and another from 67 77. To save one ring you must buy a 67mm filter and use to the 58 lens with step-up ring and as it is to your other lens (67mm diameter). I hope I have solved your problem.

Q: 2. Can you stack the PolarPro step up rings to fit my 82 mm VND to my 52mm lens? (so 52 - 67 attached to 67 - 82)

A: Yes, you may stack both the PolarPro Brass 52-67mm Step-Up Ring, B&H # POSUR5267 and the PolarPro Brass 67-82mm Step-Up Ring, B&H # POSUR6782, to connect an 82mm variable neutral density filter onto a lens with 52mm filter threads.

Q: 3. Would using the 82mm PolarPro VND with this 67mm-82mm step-up ring cause any vignetting on the Sony FE 20mm f/1.8 G Lens?

A: No it would not, I use a step up ring on my PolarPro VNDs and get no vignettes.

Q: 4. Can the PolarPro 67-82 step up ring be used with a Breakthrough ND filter?

A: Yes, as long as the thread size matches.

Q: 5. If I have a camera with a 30mm lens, and a 37mm fisheye, do I need a step up or step down ring?

A: If your filter/attachment is larger than your lens, it's a step-up. In this case, your fisheye attachment is 37mm and your lens' front diameter is 30mm, hence, you'd need a step-up ring.

Q: 6. I have attached an 82 mm Peter McKinnon Variable ND filter to this 77-82 step up ring and cannot detach the ring from the filter to use with an 82 lens. Any suggestions or help?

A: These Sensei 72-82mm Rubberized Filter Wrench (2-Pack) BH #SEFWM7282 are useful if you are having difficulty removing a filter from your lens or the ring from your filter. https://bhpho.to/3L9PT6f

Q: 7. Can I purchase a 72mm filter and use that one filter on both a 72mm lens and a 46mm lens with the 46-72mm step-up ring?

A: Yes, that's exactly what it's for.

Q: 8. Are both threads fine/standard or is the 95mm coarse like the Canon RF 28-70L and the 67mm fine?

A: The Sensei 67-95mm Aluminum Step-Up Ring has course 1.0 pitch threading on the 95mm side, and standard 0.75 pitch on the 67mm side. This is fairly standard for these sizes.

Q: 9. Would this work with tiffen Nds?

A: Yes, it's meant for any circular filters with 82mm diameter.

Q: 10. Would these be compatible with a Tiffen brand ND Filter? Thanks!

A: Yes, these Sensei step-up rings are compatible with Tiffen ND. I use 77mm Tiffen ND and use multiple of these rings with my different Canon and Panasonic lenses. I had bought both the Tiffen ND and Sensei rings from B&H and they work perfectly fine on my shoots.