This Cavision Step-Up Ring 39-49mm Threadedenables the use of 49mm threaded filters on lenses with 39mm filter threads. The 6mm depth enables this ring to fill the gap between the lens and the back of select rod-mounted matte boxes, helping to keep reflections from hitting your lens. The step-up ring has a 52mm outside diameter for use with clip-on matte boxes. It features a lightweight aluminum alloy construction with a black anodized finish.

Use Alone or with Select Matte Boxes    Adapts Lens with 39mm Filter Thread    For 49mm Filters    6mm Depth    52mm Outside Diameter    Anodized Aluminum Construction

Use alone or with select matte boxes

This adapter ring features a depth of 6mm, suiting it for reflection prevention use with rod-mounted matte boxes

Lightweight, durable anodized aluminum construction

Related Questions and Answers

Q: 1. Would these be compatible with a Haida-brand ND filter? Thanks!

A: The Sensei 82mm Step-Up Ring Kit has the same pitch thread size as Haida filters; therefore, you can connect Haida ND filters to any of the Sensei step-up rings.

Q: 2. Is the black color with matte finish inside?

A: Yes, the black color and finish covers the entire step up ring.

Q: 3. If I have a 30mm camera lens, and a 37mm fisheye, do I need a step up or step down ring?

A: This step-up ring is the one you need.

Q: 4. What is the thread pitch on this step-up ring?

A: Unfortunately we do not have the measurement of the pitch to provide you with. I contacted the manufacturer and they stated it is within the common pitch of your major brand filters we carry (Hoya, Tiffen, B+W etc).

Q: 5. Exactly what does this weigh?

A: Not a lot

Q: 6. Can use Nisi V5/V5 Pro?

A: This is step up ring set , to use Nisi V5/V5 you will still need Nisi adapter ring

Q: 7. Will thisgive me a vignet if i use it on a sony 16-35mm lens and an 82mm polarizing filter?

A: I dont think so. As somebody said the sensor size could play a role, although it never happened to me.

Q: 8. Can I stack two filters?

A: Yes, you can stack 2 filters with the same size thread but beware of vignetting (darkening of the edges) with wider angle lenses.

Q: 9. does 82 to 55 include in the box?

A: 82mm filter for 55mm lens is one of the rings included in this kit.

Q: 10. If I used this step up ring, would it cause vignetting?

A: Unless you are using an extremely wide angle lens, you shouldnt experience vignetting with the 52-77mm Step-Up Ring.