The Heliopan 48-46mm Step-Down Ring - #480from Heliopan 48-46mm Step-Down Ring - #480permits the use of 46mm filters on a 48mm threaded lens. It features a durable brass construction to prevent jamming and binding, and it has a matte black finish to reduce reflections.

Use 46mm Filters on 48mm Lens    Brass Construction    Matte Black Finish

Related Questions and Answers

Q: 1. 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

Q: 2. can i use a step down on a 77 to 67 and then another on top of it from 67 to 49

A: Yes you use more than one step down adapter ring. Note you will get a lot of vignette when using that setup of 77 lens filter thread to a 49mm filter.

Q: 3. Does this cause heavy vignetting with prime lenses for example 50mm?

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

Q: 4. What is the thread pitch of the 48mm side? Will a M48x0.75 astronomical filter fit?

A: Yes.

Q: 5. I am thinking about purchasing an 82 mm neutral density filter. Is a step-down ring what I need to allow me to use this filter on my 77 mm lenses? Looking at the 82-77 step-down ring (#408) by Heliopan. Thanks!

A: What you would need is a step up ring instead, since you are trying to fit an 82mm filter on a lens with a 77mm diameter. Please see the following link: http://bhpho.to/1n8QhUq

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. 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: 8. Can multiple step down rings be used at same time to achieve desired use. For example, assuming one ring in size needed does not exist, can I use a 77mm to 72mm + a 72mm to 68mm at same time?Tks.

A: You could use multiple step-down rings together if the combination you need isnt available. I would suggest using more than two together. Also keep in mind that using a filter that is smaller than the filter thread of a lens can cause vignetting. So you wouldnt want to use a filter that is too much smaller than your lens.

Q: 9. what is the thread pitch?

A: Heliopan does not list the pitch on the Heliopan 42-39mm Step-Down Ring (#316). But standard for that size is 0.75mm thread pitch.

Q: 10. Does this help with vignetting when using a smaller filter?

A: No