The Heliopan 30-58mm Step-Up Ring (#889) is a step-up ring permitting the use of 58mm threaded filters on a 30mm threaded lens. Constructed of matte black brass, Heliopan step-up rings are highly durable and longer-lasting when compared to aluminum rings.

Use 58mm Filters on 30mm 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. will this RFi Speed Ring fit a D2?

A: Yes this RFI ring will fit and work on a D2 Profoto light. You will need to use it with an RFI softbox.

Q: 2. Does this work with Godox soft boxes?

A: Yes, the Phottix Speed Ring for Bowens Flash Heads may be used with Godox softboxes that come with standard softbox rods.

Q: 3. Can it be used as a master with Godox flash units as slaves (using an A7riv)?

A: Yes, it works as a master with Godox speedlights for sony. But optically only. It is line of site verses the radio system which is not.

Q: 4. This Profoto RFI Speedring can be used with the Octa 3' in the B1 flash head?

A: I use it with my octa on d1 heads (exact same as b1) and it has worked great for over a year.

Q: 5. Will this work with the Profoto B10?

A: This will work with a Profoto B10.

Q: 6. What is the t.1 timing on this flash?

A: The recycle time varies depending on your power settings and your batteries. It can range between 0.1 and 5.5 seconds.

Q: 7. Will the Nissin MF18 Macro Ring Flash for Sony work on the Sony A7rIII without any adaptors? Thanks

A: The Nissin MF18 for Sony is compatible with the Sony A7rIII camera. The included "adapter" rings are used to attach the ring flash to the front of your lens. As sold the MF18 Sony unit includes rings for the following lens sizes: 49mm, 55mm, 62mm, 67mm, 72mm, and 77mm. Additional adapter rings are available for purchase separately for 52mm and 82mm size filter threads.

Q: 8. Does this ring work with other brands' accessories with the PROFOTO strobe?

A: If you mean, does it work with other brands of softboxes, yes, it does. I use photoflex softboxes and they work perfectly with this ring.

Q: 9. Will this speed ring work with paul buff light modifers or soft boxes?

A: Each softbox MFR has its own diameter of rods, so we cannot be sure.

Q: 10. Can this only be used for close up macro shots or can this also be used for portraits 10-15' away?

A: The is a good ring flash. But the guide number is 52.5' . So more than half as bright as many regular speedlights. So, at 10-15 feet away it will be pretty dim.