The Vocas 114 to 85mm Step Down Adapter Ringallows you to use your Vocas MB-215 or MB-255 matte box with standard Canon, Fujinon, or Angenieux ENG lenses. The adapter ring is a sturdy plastic split ring that snugs the lens within the 114mm opening of the matte box. You can use this adapter ring with an available Vocas 138 to 114mm step down adapter ring to mount an available Vocas MB-430 to select ENG lenses with an 85mm front barrel diameter.

Fits Canon/Fujinon/Angenieux ENG Lenses    Works with MB-430 via 138 to 114mm Ring    Split Ring Design

The adapter provides a snug fit that prevents light leaks between lens and matte box for select ENG lenses to available Vocas MB-215, and MB 255 matte boxes.

The split ring design makes it easy to mount the adapter on the lens, and when inserted into the matte box, the ring gently closes.

Related Questions and Answers

Q: 1. How much does this product weight?

A: According to our shipping specifications, the product will weigh .30 lb.

Q: 2. Can you recommend a flexible step down ring or nun’s knickers that is compatible with the Chrosziel 805 Matte Box?

A: The Chrosziel MB 805 Production Matte Box could work with the Nun's knickers below. We would recommend: Chrosziel 142.5mm Flexi Bellows Ring for Chrosziel Matteboxes BH #CHC41070 • MFR #410-70

Q: 3. I have a 37mm opteka fisheye lens and i want it to fit on my panasonic pv-gs400 which has a 43mm thread. Will this stepup down ring fit the fisheye on the 43mm lens?

A: Sorry, if you were to mount this smaller lens onto a larger lens, you will get vignetting. For the PV-GS400, here is a fine fish eye for you. Raynox HDP-2800ES High Definition 0.28x Diagonal Fisheye Conversion Lens B&H # RAHDP2800ES. Yes, it is more expensive but it will work.

Q: 4. What is the thread pitch of the 48mm side? Will a M48x0.75 astronomical filter fit?

A: Yes.

Q: 5. What is the height protrusion of the ring above the lens?

A: Sensei 72-67mm Step-Down Ring IS 4mm tall above the threads.

Q: 6. Will this fit on the older style Chrosziel matte boxes? I have the CLWAH-4,5

A: Not that we are aware of. This product is only listed as compatible with the MB-450 Series Matte Box.

Q: 7. will this work putting a 72mm fisheye onto a 58mm filter size for the canon gl2?

A: This is not the right ring for that job; this is the one you need: https://www.bhphotovideo.com/c/product/809629-REG/Sensei_sur5872_58_72mm_Step_Up_Ring.html

Q: 8. Could I use this with the ARRI LMB 4x5 with a 114mm clamp on back?

A: No, the Vocas 114mm to 88mm Step-Down Ring for MB-215/216 & MB-255/256 is designed to be used with Vocas matte boxes only.

Q: 9. Will this work with 114mm back stage on an Arri Matte box?

A: This Bright Tangerine 114-85mm Threaded Adapter Ring for ENG Wide Angle Lenses will attach to any 114mm matte box including Arri.

Q: 10. Are there any side effects (vignetting, i think is the term used) when using the smaller 77mm filters on the larger 82mm lens?

A: Hi again Steve, just received your reply. I did not consider going to a full frame camera. Throwing that into the mix especially with a 24-70 lens I think pretty much would cause vignetting. Going from an 82mm down to a 77mm equals about one-quarter inch that would equal a one-eighth inch reduction on each side of the filter's rim. I would expect you'll get a lot of vignetting. One consideration is that the Sensei 82-77 step-down ring is not really expensive and if it caused too much vignetting you're not out a lot of money for the ring itself. I buy that brand, as they work very well and at a low cost. I would say to start saving for 82mm filters; I think you'll fine more vignetting than you'll want to deal with, especially going to a full frame camera and that lens.