The Universal Lens Doughnut from Redrock Micro is made of flexible steel ring that snaps into your swing-away microMatteBox and features a light-proof cloth with a drawstring. The cloth fits around your lens, and the drawstring pulls the cloth tight around your lens to prevent light from reflecting off the back of your filters and degrading your image.
The doughnut is suitable for use with primes and zooms, and speeds lens changes as you don't have to worry about finding the specific doughnut for each of your lenses. Additionally, when using lenses with either focus or zoom travel, the universal doughnut will expand and contract with the movement of the lens, ensuring a light-tight fit.
Features
- Supports lenses up to 138 mm front diameter
- Supports zoom lenses with varying lengths
- Works with your swing-away microMatteBox
