The #433 Step-Down Ring from Heliopan permits the use of 55mm filters on a 72mm threaded lens. It features a durable brass construction to prevent jamming and binding, and it has a matte black finish to reduce reflections.

Use 55mm Filters on 72mm Lens    Brass Construction    Matte Black Finish

Related Questions and Answers

Q: 1. 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: 2. Might be a dumb question but can this be used with a 77mm filter on a 62mm lense? from the description it seems like its meant more for the other way around

A: This ring is to attach a 62mm filter to a 77mm lens thread but for wide lenses, that's a no-no, vignetting will occur.

Q: 3. 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: 4. Does the difference in thread sizes cause noticeable vignetting on wider focal lengths?

A: Very possibly, yes, it depends on the focal length of the lens, how wide it is. It always best to get a larger filter if possible. Putting a smaller filter, especially on a wide angle lens, is a recipe towards vignetting.

Q: 5. What is the height protrusion of the ring above the lens?

A: Sensei 72-67mm Step-Down Ring IS 4mm tall above the threads.

Q: 6. Confirming, front inner threads are 62mm, rear threads are 67mm?

A: Yes, the front threads are 62 mm and rear thread are 67 mm on the Sensei 67-62mm Step-Down Ring. The Sensei 67-62mm Step-Down Ring is a step-down ring permitting the use of 62mm threaded filters on a 67mm threaded lens.

Q: 7. 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: 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. Are there any side effects (vignetting, i think is the term used) when using the smaller 77mm filters on the larger 82mm lens?

A: Hi again Steve, just received your reply. I did not consider going to a full frame camera. Throwing that into the mix especially with a 24-70 lens I think pretty much would cause vignetting. Going from an 82mm down to a 77mm equals about one-quarter inch that would equal a one-eighth inch reduction on each side of the filter's rim. I would expect you'll get a lot of vignetting. One consideration is that the Sensei 82-77 step-down ring is not really expensive and if it caused too much vignetting you're not out a lot of money for the ring itself. I buy that brand, as they work very well and at a low cost. I would say to start saving for 82mm filters; I think you'll fine more vignetting than you'll want to deal with, especially going to a full frame camera and that lens.

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!