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.
Ask Our Experts800.606.6969
Hello, Log InAccount & Orders
Join Bild Expo 2025 - Presented by B&H
Video Chat with a Photography Expert - Live
Key Features
- Use 58mm Filters on 40.5mm Lens
- Knurled Sides for Firmer Grip
- Anodized Aluminum Construction
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.
More DetailsIn Stock
B+W Step-Up Ring Overview
B+W Step-Up Ring Specs
| Size (Lens to Filter) | |
| Ring Thickness | |
| Ring Material | |
| Knurling |
Packaging Info
| Package Weight | |
| Box Dimensions (LxWxH) |
B+W Step-Up Ring Reviews
Quality
By Susan
Rated 5 out of 5
Date: 2024-07-21
I have used other B+W rings and lenses and find them to be top quality
Will 52mm filters vignette on the new (2021) 16mm RF lens?
By Matt
Rated 4 out of 5
Date: 2021-10-21
I purchased this step up ring in anticipation of receiving the as yet to be released (as at mid October 2021) Canon RF 16mm lens. I have a bunch of 52mm filters including ND's and polarisers and don't want to have to buy new 43mm filters. I hope that there will be no vignetting when shooting 4K with the 1.7x crop .... Will post my results here later.
See any errors on this page?
When using this adapter, with a 77mm nd filter on ...
When using this adapter, with a 77mm nd filter on a 58mm cap size lens, will it have any downsides? Or is it gonna look perfect just like a 58mm filter?
When using the B+W 58-77mm Step-Up Ring, photos should look fine using the 58mm cap size, unless one is using a fisheye wide angle lens.
Date published: 2019-12-13
question
Can this be used with filters that aren't B+W brand? Such as Firecrest?
Yes, as long the filter has a standard 77mm thread.
Date published: 2018-08-28
question
The description says it's aluminum, but the reviews say it's brass - which is it?
Hi there Yes, it is brass
Date published: 2018-08-26