Designed for still lenses , this donut ring screws onto the inner 67mm thread of the lens to step up the diameter to 114mm to be used with a matte box.

- Converts The Outer Diameter Interface Of Your Lens To 114mm
- Minimum Overhang To Allow For Maximum Field Of View
- Compatible With Our Black Hole Donut And Any Donut Or Back Plate With A 114mm Inner Diameter
- Built From Anodized Aluminium For Maximum Durability
- Dimensions (Mm) 114 X 15
- Weight (Grams) - 61