The Heliopan 54-49mm Step-Down Ring (#461) for Camerasfrom Heliopan 54-49mm Step-Down Ring (#461) for Cameraspermits the use of 49mm filters on a 54mm threaded lens. It features a durable brass construction to prevent jamming and binding, and it has a matte black finish to reduce reflections.

Use 49mm Filters on 54mm Lens    Brass Construction    Matte Black Finish

Related Questions and Answers

Q: 1. 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: 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. What is the overall diameter of this step-down adapter ring?

A: There are no published measurements of the diameter of the Heliopan Bay 1-30.5 Step-Down Ring (#305).

Q: 4. The description says it's aluminum, but the reviews say it's brass - which is it?

A: Aluminum, without a doubt. I have brass step up rings as well, they are substantially heavier than this ring.Let that not reflect poorly on the craftsmanship however; it is still a superbly machined piece of metal with precise fit and finish.

Q: 5. Does this help with vignetting when using a smaller filter?

A: No

Q: 6. What is the thread pitch of the 48mm side? Will a M48x0.75 astronomical filter fit?

A: Yes.

Q: 7. I have a Canon 24-70mm ef L lens f.2.8 uses 82mm filter. I want to step down to myCanon 24-105mm ef L lens with 77mm filter will this step down ring work?

A: It depends... If your camera has an APSC-size sensor, it will probably work. On a full-frame, it is very likely that you will end up with dark corners at the wide end, because at 24mm the lens has a wide view, and the step-down ring + the filter will extend too far forward and cause vignetting. Best way is to hold your filter about 3-4mm in front of the lens and see if it does cause vignetting.

Q: 8. 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: 9. Greetings! Is this the .5 fine thread or the standard .75 thread? I wish to use on a Polaroid 180 and don't want to trash the threads.Thanks!

A: The Heliopan 46-49mm Step-Up Ring uses standard threads, and are excellent quality step-up rings with brass construction.

Q: 10. 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