The Calumet filter is a gray ND4x filter for camera lenses, reducing exposure by 2 EV. It is made from Japanese AGC glass and features anti-reflective, hydrophobic, and oleophobic coatings, as well as scratch resistance. The slim aircraft-grade aluminum ring is 3.3 mm thick and has double threading for attaching additional accessories.
- Type: Gray ND4x filter
- Diameter: 77 mm
- Exposure reduction: 2 EV
- Material: Japanese AGC glass
- Coatings: 28 (14 on each side)
- Coatings: Anti-reflective, hydrophobic, and oleophobic
- Resistance: Scratch-resistant
- Ring material: Aircraft-grade aluminum
- Ring thickness: 3.3 mm
- Threading: Double
- Package contents: 1 piece
- Diameter
- 77 mm
- Packaging
- Piece
Important information
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.