The 77 to 85mm Wooden Camera Step-Up Ring Zip Box Pro Matte Box 77-85mmadapts lenses with a 77mm front filter threads to an 85mm outer diameter surface. This 0.2" thick surface allows you to clamp a Zip Box Pro matte box with an 85mm clamp on back onto your lens.

Adapts Lenses with 77mm Front Threads    Provides 0.2" Thick Clamping Surface

Related Questions and Answers

Q: 1. Can the top flag be removed via quick release?

A: The Wooden Camera Zip Box Pro 4 x 5.65" Matte Box (Swing-Away) uses its own proprietary 15mm quick release rod attachment for the top flag.

Q: 2. What are the size of reduction ring included ? I'm planning to use this matte box with smaller lens . Do i need to buy extra reduction ring or just use the one that included ?

A: They include a set of reduction rings (110, 104, 95, 87, or 80mm) and a Universal Cloth Donut.

Q: 3. Fit with DZOFILM PICTOR ZOOM 86mm?If so which size should I choose?

A: You will need the 95mm, since the front diameter of the lens is 95mm. https://www.bhphotovideo.com/c/product/1449048-REG/wooden_camera_266700_wooden_camera_zip.html

Q: 4. will this fit a canon rf 28-70 f2 lens?

A: Yes, the Wooden Camera Zip Box Pro 4 x 5.65" Matte Box (104mm, Clamp-On) can be mounted to the Canon RF 28-70mm f/2 L USM Lens (95mm front filter size) using the Wooden Camera Clamp-On Back for Zip Box Pro 4 x 5.65" Matte Box (95mm)(sold separately). See: https://bit.ly/3mNFlnn

Q: 5. can I use the Swing-Away version for clamp on?

A: Yes, you can use the Wooden Camera Zip Box Pro 4 x 5.65" Matte Box (Swing-Away) as a clamp-on matte box. The clamp-on Zip Box Pro attaches directly to the front of a lens using dedicated backs of 114, 110, 104, 100, 95, 87, 85, and 80mm.

Q: 6. What is the weight of the matte box in it's different configurations?

A: As you see it, the box the UMB-1 comes in weighs 8.2 lbs / 3.7195 kg. I would say that in in full studio configuration, it would be slightly less than that. In Clamp-On configuration, once you remove the rod holder and not use the metal flags, the stripped down matte box would weigh in the neighborhood of 3-4 lbs / 1.3-1.8 kg.

Q: 7. can I screw another filter in it?, I need to use 77 filters in 49 lens

A: All rings adapt to an 82mm thread size, so you would not be able to use 77mm filters, only 82mm.

Q: 8. How can I use both rotating CPL & VND for the 85mm version?

A: No, You can't use rotating filters on the Wooden Camera Zip Box Pro. However, you can purchase the wooden round filter stage and it will accept 4.5" filters that you can rotate. You can only use one rotating adapter on the Wooden Camera Zip Box Pro. Wooden Camera Zip Box Pro 4.5" Round Filter Stage BH #WO271400 https://bhpho.to/3Dza5h4

Q: 9. Is the swing-away 15mm rod bracket height-adjustable?

A: The matte box can be tilted by loosening two screws, which coincidentally allow you to adjust the height of the matte box 4mm up or down from center.

Q: 10. Does the 87mm clamp-on fit with the Sigma 24-70mm f/2.8 DG DN Art Lens for Sony E?

A: No, the Wooden Camera Zip Box Pro 4 x 5.65" Matte Box (87mm, Clamp-On) will not fit around the Sigma 24-70mm f/2.8 DG DN Art Lens for Sony E's 87.8mm outer diameter. Instead, I recommend using a mate box that can mount to the lens using the lenses 82mm front filter thread.