The Heliopan 37-55mm Step-Up Ring (#799) is a step-up ring permitting the use of 55mm threaded filters on a 37mm threaded lens. Constructed of matte black brass, Heliopan step-up rings are highly durable and longer-lasting when compared to aluminum rings.

Use 55mm Filters on 37mm Lens    Brass Ring for Durability    Matte Black Finish Reduces Glare

Efficient solution for use of one size of filters with various sized lenses.

Matte black brass lessens chance of glare.

Rugged construction for ease of use.

Related Questions and Answers

Q: 1. Hi, could you tell me the difference between Sensei and Sensei Pro step-up rings? Why the difference of prices?

A: The pro ring has knurled edges and a hardened matte black surface for minimal glare and reflection.

Q: 2. Does this fit onto Leica Elmarit-R lens with series VII filter thread?

A: Apparently there are two versions of this lens. Series VII retaining ring should be 54mm so this step ring should get you to a 55mm filter size.

Q: 3. 49 mm is a common thread size for Sony and mft lenses, so I think the small 37mm is also a mft and small bayonet lenses, so, I think it's good to step for this kind of lenses

A: Is this a question or a statement?

Q: 4. I'm trying to mount 86mm coarse filters on a P6 45mm Hartblei Super Rotator. Is the 86mm side coarse threaded?

A: Unfortunately, the 86mm side is not shown as coarse threaded by the manufacturer.

Q: 5. What is the thread pitch of the 43mm threads?

A: The thread pitch is not listed for this adapter. However it will allow you to use 52mm Filters on a 43mm Lens.

Q: 6. If I use a step up ring 67mm - 77mm , will this cause vignetting?

A: No, stepping up 10mm's will not cause vignetting.

Q: 7. I need to step up from 48mm to 77mm. Can I use this ring in combination with a 58 to 77mm ring?

A: To mount 77mm filters on a lens with 48mm threads, you can use the Heliopan 48-58mm Step-Up Ring (#184) with any 58-77mm Step-Up Ring. Sensei PRO 58-77mm Aluminum Step-Up Ring, BH #SESURPA5877, is a good option.

Q: 8. 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: 9. Hi ... What is the difference between the Heliopan #143 62/77mm Step-Up Ring, and the Heliopan #144 62/77mm Step-Up Ring??? The descriptions do not say ... other than price, of course. ...Robert G.

A: The Heliopan ring, # 700-144 is a special model that can accept both 77mm threaded filters, as well as Series 8.5 type filters. Our product link for this model on our website is slowly being changed to reflect the new information we received about it since receiving your inquiry.

Q: 10. What is the thickness of this filter in mm, especially the outside 82mm diameter portion?

A: The thickness of this step up ring is about 4mm.