The FotodioX 50 to 55mm Aluminum Step-Up Ringpermits the use of 55mm threaded filters on lenses with a Bay 50 filter mount. 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 55mm Filters on Bay 50 Lens    Corrosion-Resistant Anodized Aluminum    Matte Black Finish Minimizes Reflections

Related Questions and Answers

Q: 1. can I use a 82mm series 9 non threaded filter on this step up ring?

A: Unfortunately, we have not made use of this ring yet and cannot give any advice on it yet. Apologies

Q: 2. Will thisgive me a vignet if i use it on a sony 16-35mm lens and an 82mm polarizing filter?

A: I dont think so. As somebody said the sensor size could play a role, although it never happened to me.

Q: 3. is this for general lenses? i have a canon 50mm (nifty fifty) will this work on it?

A: The Canon EF 50mm f/1.8 has a 49mm filter threading. This is adapter allows you to put a 62mm filter on a lens with a 49mm thread. It will work with the Canon 50mm F/1.8, B&H # CA5018EFSTM.

Q: 4. Does it come with a case, a pouch, or just the step-up rings themselves?

A: While a case/pouch is not included with this kit, the LensCoat FilterPouch 8 (Black), B&H # LELCFP8BK would be suitable. https://bhpho.to/2QthhTj

Q: 5. Is this compatible with a Canon EF50mm f/1.8 STM lens? I have 58mm filters.

A: No. Zeiss/Hasselblad only.

Q: 6. I have a 40.5mm lens and a 82mm nd filter, can I use a 49-82mm step up ring in between?

A: Sounds like you are planning to use two step up rings - one 40.5 to 49, and one 49 to 82. I don't know of any reason why you couldn't do this physically. I use a 40.5mm to 49mm step up ring on my a6000 using the 16-15mm lens and have not experienced any vignetting. I would think the 82 step up would be wide enough not to cause vignetting.

Q: 7. Can these be used with the Lee Filter Holder system for Rectangular Filters?

A: I just used filters w step rings nothing more. Sorry, I don't know...

Q: 8. Will the Hasselblad B60 lenshood fit over this step ring, or is 72mm filter size too large?

A: Unfortunately, a Hasselblad B60 lens hood will not fit when this step ring is in use.

Q: 9. does 82 to 55 include in the box?

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

Q: 10. If I want to go from a 37mm lens to a 77mm filter would I stack all these rings together?

A: It is possible, however I would advise you to try using as few rings as possible to avoid vignette. As well, you will need to make sure that the filter you are using is absolutely clean to avoid focusing issues.