This Cavision 37-49mm Step-Up Ring enables the use of 49mm threaded filters on lenses with 37mm 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 37mm 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. does 82 to 55 include in the box?

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

Q: 2. 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: 3. Is there a knurled version of this 77 to 95 mm step up ring ?

A: I didn't know; didn't buy it.

Q: 4. Exactly what does this weigh?

A: Not a lot

Q: 5. Can these be used with the Lee Filter Holder system for Rectangular Filters?

A: I just used filters w step rings nothing more. Sorry, I don't know...

Q: 6. Is this compatible with the fuji 23mm f/2 wr lens?

A: No it is not. the FUji 23mm F/2 WR lens has a 43mm filter thread you will need a step up ring that matches that (such as a 43-49mm)

Q: 7. 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.

Q: 8. I'm a novice to this but what is the difference between knurling and no knurling?

A: No knurling is smooth around the edges, and knurling gives you little ridges for better grip.

Q: 9. What is the tread pitch of the filter?

A: The Sensei 86-95mm Aluminum Step-Up Ring has a 1.0mm thread pitch.

Q: 10. 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?