The +0.25 138mm/60mm Close-Up Donut Diopter from Revar Cine uses high-quality Schott BK7 glass that has an index similar to your lens elements. This unique close-up lens is made from the same high-quality glass as round drop-in close-up lenses, and it can be quickly and easily inserted in a matte box. With a precision center hole, it allows the exact placement of the center hole in your frame when switching strengths. It is useful for quickly getting the right shot with a variety of lenses that have different focal lengths, including large-diameter prime lenses and zoom lenses.

Precision Cut Center Hole    High-Quality Schott BK7 Glass    138mm Extra-Large Filter    Compatible with Most Standard Holders

It includes a precision center hole allowing exact placement of the center hole in your frame when switching strengths.

The 138mm filter allows for the use of wide-angle lenses for maximum compatibility.

They use a high-quality Schott BK7 glass that has an index similar to your lens elements. Manufactured to the highest tolerances, this glass will exceed the performance of other diopters.

+0.25 allows for incremental close focus adjustment.

It creates a spherical distortion with a clear point of focus.

Compatible with industry-standard holders, including the Bright Tangerine One Tray, ARRI 138mm rear filter holders, and the Revar Cine Double Tray.

Related Questions and Answers

Q: 1. How far does the near object has to be from the lens, compared to a +1 diopter ?

A: When the base lens is focused at infinity, the object will be at the focal length of the diopter attachment. For the Lindsey Optics 4 x 5.65" +3 Diopter Brilliant² 50% Rota-Split Close-Up Lens that is 333mm. For the +1 it is 1 Meter. When the base lens focus is changed to shorter distances, the object distance decreases.

Q: 2. Will this fit bright tangerine misfit atom?

A: No, The Lindsey Optics 4 x 5.65" +2 Diopter will not work with the Bright Tangerine Misfit Atom. The Misfit will not accept drop filters on trays. However it could work with the Misfit Kick https://bhpho.to/3rAd17i

Q: 3. Please clarify since different matteboxes have different compatibility. Does this filter fit the Tilta MB-T12 Mattebox?

A: Yes it is compatible with the Tilta MB-T12 matte box.

Q: 4. Hi. Does it work on Tilta mb- t12? Thank you

A: The ARRI Diopter Frame 138mm is only compatible with the LMB-5, 15, 25 and 4x5.

Q: 5. What is the difference between this and the studio version?

A: The difference is that the Lindsey Optics Brilliant² 4 x 5.65" +3 Diopter Tray Mount Studio Close-Up Lens has a stainless steel post threaded into the handle. This makes it easer to reach the handle when the tray mount close-up lens is used in a Studio style matte box. For lightweight clip-on matte boxes the post is not necessary. The glass is the same in both versions, the tray dimensions are the same in both versions.

Q: 6. Is this compatible with Tilta MB-T12 matte box?

A: Yes, the Revar Cine 4 x 5.65 138mm Variable ND Kit A with Rota Pola Rota-Tray is compatible with the Tilta MB-T12 Matte Box.

Q: 7. Would this work inside a Bright Tangerine Misfit 3 stage matte box?

A: This will work in 4 x 5.65" matte boxes that can take three filters. The concave is lens is very thick on a +3 diopter so it needs the space.

Q: 8. Will this fit within the Arri MB20 Original Matte Box?

A: If it is a two-stage version of the MB20, it will be compatible.

Q: 9. Is it compatible to fit in the bellows set of the wooden camera UMB-1?

A: Yes, the Revar Cine Circular Polarizer Pola+ for Matte Boxes - 138mm, Mounted (BH #REM138CP) can fit into the 138mm round polarizer slot on the bellows of the Wooden Camera UMB-1 Universal Matte Box (BH #WO202100).

Q: 10. Can the diopter itself be removed from the 4x5" tray and used in a standard open 138mm round stage?

A: According to Lindsay Optics, yes, you could remove the glass, but the glass outside of the tray has no metal ring. This will cause difficult mounting issues as well as subjugating the filter to very possible damage. In other words, it is not at all recommended.