The Heliopan 46mm to 43mm Step-Down Ringfrom Heliopan 46mm to 43mm Step-Down Ringpermits the use of 43mm filters on a 46mm threaded lens. It features a durable brass construction to prevent jamming and binding, and it has a matte black finish to reduce reflections.

Use 43mm Filters on 46mm Lens    Brass Construction    Matte Black Finish

Related Questions and Answers

Q: 1. will this work putting a 72mm fisheye onto a 58mm filter size for the canon gl2?

A: This is not the right ring for that job; this is the one you need: https://www.bhphotovideo.com/c/product/809629-REG/Sensei_sur5872_58_72mm_Step_Up_Ring.html

Q: 2. I'll be using this on my 85mm Tessar ZM which has 43mm filter thread. All of my filters (CPL and ND) have 39mm filter thread. Will my 85mm Lens vignette by using this item?

A: Anytime you use a step-down ring to use a smaller filter on the front of a lens with a larger filter diameter, you run the risk of obtaining some vignetting. Unfortunately, we have no way to test or guarantee which lens/focal length combinations. While vignetting would normally be more noticeable with wide angle lenses compared to telephoto lenses, I cannot guarantee you will not get vignetting. The best I can state would be to purchase the item and see if it works for your needs, and if it does not, you would have 30 days to return the item for an exchange or refund via our 30-Day Return Policy on this item.

Q: 3. hey i have a Tamron 20-40 2.8 77mm Aspherical lens that has a bubble to it, and i want to step down to a 72mm, could this fit on my tamron which is Aspherical? thanks

A: That is a step down ring. If your lens has a 77mm filter thread it will fit and allow you to use 72mm filters on it. Note that stepping down you will get vignette.

Q: 4. I have a 58mm polarizer filter and now am purchasing a 62mm lens. Can I us a step-up adapter ring to make this work? If so which one do I want?Thank you.

A: As the 58mm filter you own is smaller than the 62mm filter threads on the lens you wish to purchase, you would need to purchase a 62-58mm step-down ring, such as the Sensei 62-58mm Step-Down Ring, B&H # SESDR6258. Do note that when using a filter with a smaller filter thread on a lens that has a larger filter thread, you may encounter some vignetting due to the smaller filter thread size. (not guaranteed, but it is a possibility of which you should be made aware).

Q: 5. Any observed drawbacks when used on a Sony G-Master 85mm (77mm) with a 72mm Zeiss Polarizer ?

A: There will always be issues using a smaller size filter than the filter threads of the lens. Most notably you are likely to get vignetting.

Q: 6. Are the threads female on both sides?

A: No. The 58mm side is male and screws into the lens. The 49mm side is female and receives the filter's male threads.

Q: 7. How much does this product weight?

A: According to our shipping specifications, the product will weigh .30 lb.

Q: 8. Any idea as to whether this SDR will fit an Opteka 0.3x fisheye 52mm onto a Canon GL2 with 58mm threads?

A: Yes,it will fit.

Q: 9. Does this cause heavy vignetting with prime lenses for example 50mm?

A: No, you should not get vignetting with a 50mm lens.

Q: 10. Is this m52 x 0.75 male thread? Also, what is the external diameter of this step down ring? Thanks

A: Yes, the 52mm end is male. I'm sorry but the external diameter is not available, you can contact Heliopan for more specific info; HeliopanDistributed By - H.P. Marketing CorporationTel: 800-735-4373 Website http://www.hpmarketingcorp.com/ Email info@hpmarketingcorp.com