The B+W 40.5-58mm Step-Up Ring permits the use of 58mm threaded filters on lenses with 40.5mm filter threads. It features a lightweight, aluminum-alloy construction that has a corrosion-resistant, black anodized finish for durability. This step-up ring has side knurling to provide a more textured grip when mounting or removing it from a lens.

Use 58mm Filters on 40.5mm Lens    Knurled Sides for Firmer Grip    Anodized Aluminum Construction

Related Questions and Answers

Q: 1. Do these step up rings fit the Xume magnetic rings that get added to a non-magnetic filter?

A: While it is possible that the Xume rings could fit, they have not been tested to our knowledge.

Q: 2. does 82 to 55 include in the box?

A: 82mm filter for 55mm lens is one of the rings included in this kit.

Q: 3. 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: 4. 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.

Q: 5. Could this cause vignetting on a 15mm wide angle lens?

A: While it would depend on the lens and filter you are using to say for sure, since this is a step-up ring and even wider, it is unlikely that it would cause any vignetting.

Q: 6. Would this work with tiffen Nds?

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

Q: 7. Is this compatible with a Canon EF50mm f/1.8 STM lens? I have 58mm filters.

A: No. Zeiss/Hasselblad only.

Q: 8. can i use 72mm filters?

A: The Freewell 58mm Step-Up Adapter Ring for V2 Magnetic Filters is designed to mount the Freewell Magnetic Filter System to a 58mm lens front thread. The adapter ring does not have front threads, and it has a front diameter of 85mm.

Q: 9. What colour flare does this model have?

A: The color of the flare could be green, blue, white or orange depending on visible spectrum of different light sources passing through the filter. I found green to orange most often.

Q: 10. I noticed that the individually sold 67-77mm Sensei step-up ring is sold as (and is marked) "Sensei Pro". But, the rings in this kit are not marked with the "Pro" designation. What is the difference being as the single 67-77 "pro" ring costs 50% of what this kit costs??? Thanks!

A: The pro rings are matte black and have knurled edges.