The Heliopan 55-54mm Step-Down Ring (#440)from Heliopan 55-54mm Step-Down Ring (#440)permits the use of 54mm filters on a 55mm threaded lens. It features a durable brass construction to prevent jamming and binding, and it has a matte black finish to reduce reflections.

Use 54mm Filters on 55mm 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. 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: 4. 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: 5. Does this filter allows to use a 67mm filter on 52mm lenses?

A: This will actually do the opposite- this allows you to use a 52mm filter on a 67mm lens. Instead, you will want the 52-67mm step up ring: http://bhpho.to/1clCmra

Q: 6. My email was wrong. Is this a 52mm female thread? to a 48mm male thread?

A: The Sensei 52-48mm Step-Down Ring has female 48mm threads on the front of the ring to allow you to connect a filter with 48mm male threads to the step-down ring. The back of the step-down ring has 52mm male filter threads which will screw into the 52mm female filter threads on the front of your lens.

Q: 7. 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!

Q: 8. 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: 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. 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.