The Heliopan 49-43mm Step-Down Ring for Filtersfrom Heliopan 49-43mm Step-Down Ring for Filterspermits the use of 43mm filters on a 49mm 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 49mm Lens    Brass Construction    Matte Black Finish

Related Questions and Answers

Q: 1. 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: 2. 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: 3. Does this come with the 72mm lens Attachment to 82mm filter threads?

A: No, please check out the Sensei 72-82mm Step-Up Ring. https://www.bhphotovideo.com/c/product/809647-REG/Sensei_sur7282_72_82mm_Step_Up_Ring.html

Q: 4. 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: 5. Does this cause heavy vignetting with prime lenses for example 50mm?

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

Q: 6. 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: 7. 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: 8. I have a 37mm opteka fisheye lens and i want it to fit on my panasonic pv-gs400 which has a 43mm thread. Will this stepup down ring fit the fisheye on the 43mm lens?

A: Sorry, if you were to mount this smaller lens onto a larger lens, you will get vignetting. For the PV-GS400, here is a fine fish eye for you. Raynox HDP-2800ES High Definition 0.28x Diagonal Fisheye Conversion Lens B&H # RAHDP2800ES. Yes, it is more expensive but it will work.

Q: 9. 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: 10. could i use this in nikon lens to step down to use with 37mm Firecrest Neutral Density 5.4 Solar Eclipse Filter (18-Stops)?

A: You should be able to, but I am bot sure!