The Sensei PRO Aluminum Step-Up Ring 52-58mmpermits the use of 58mm threaded filters on lenses with 52mm filter threads. It has large side knurls to provide a more textured grip when mounting or removing it from a lens. This step-up ring features a lightweight aluminum alloy construction with a corrosion-resistant, matte black, hard-anodized finish for durability and to minimize reflections.

Use 58mm Filters on 52mm Lens    Knurled Sides for Firmer Grip    Matte Black Finish Minimizes Reflections    Corrosion-Resistant Hard Anodized Finish

Related Questions and Answers

Q: 1. 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: 2. Will the 39mm end of adapter fit a Leica lens?

A: The Sensei PRO 39-49mm Aluminum Step-Up Ring will fit on any lens that has a 39mm filter thread. 39mm is a common filter thread size for many Leica lenses.

Q: 3. Will the Sensei step up rings work for freewell magnetic filters?

A: Since the ring is aluminum, it is not magnetic. The Freewell Empty Magnetic Base Ring (82mm) would still be needed in order to attach their other magnetic filters. https://bhpho.to/3hEadRN

Q: 4. Can anyone tell me the outer diameter of the 77mm step up ring(s) ? I'm interested to know if I can use a 80mm push on cap over it.

A: The OD is probably 79 or 80mm. You will have to try it with your cap, This is never an exact science due to the fact that dimensions are never precise from cap to cap and ring to ring.

Q: 5. I'm a novice to this but what is the difference between knurling and no knurling?

A: No knurling is smooth around the edges, and knurling gives you little ridges for better grip.

Q: 6. What is the thread pitch for both size?

A: The thread pitch is 0.75mm.

Q: 7. Where is this made?

A: This item is manufactured in China.

Q: 8. If I flip this around can I use it as a step-down ring? I know I'll have to deal with vignetting (well, maybe not technically vignetting, but overlap into the image area), but will it work until I can get the correct size filters? Or are the threads threaded in such a way that it can only screw on to the lens on one side and the filter on the other and cannot be flipped?

A: No, this can only be used as a step up ring.

Q: 9. Hi. I just wanted to confirm the following: I have a 77mm 6 stop ND Filter that I want to use on 72/67/62/58/52/43mm lenses. Am I correct in saying that I am looking for a Step-Up Filter Holder (eg 72-77mm)? I need to confirm as I need buy a few of these. Also will you get vignetting when using these filters? Thanks.

A: Yes, you need to use individual step up filters for all your lenses. I use 5 step up filters for all my lens sizes to fit 77mm ND filter. 72-77mm, 67-77mm , 58-77mm, 49-77mm

Q: 10. Can you stack these? I have a 58-77 but I want to convert it to an 82mm. Can I buy a 77mm to 82mm and stack it with the 58mm to 77mm?

A: You can do that, but vignetting is possible on a wide-angle lens--this 58-82mm adapter ring is a better idea: https://www.bhphotovideo.com/c/product/1443406-REG/sensei_surpa_5882_pro_58_82mm_step_up_ring.html