Marumi's 4x5.65" neutral density filters range from 0.3 (with 1-Stop and a filter factor of 2x) to 0.9 (3-Stops and a filter factor of 8x). The Marumi filters are made in Japan.
The antistatic coating (ASC) works wonders on the surface of a glass pane. Dust and dirt adhering to the surface are quickly and easily removed with a blower.
The water/oil repellent coating gets rid of water simply by blowing air as well.
Nuisances such as sweat, skin cream, lotion, fingerprints or compound grease stains will be wiped away.
The protective sealing on the edge facilitates handling and prevents inner reflection caused by the edge of the glass.
- Type: Neutral Density
- Size: 4"x5.65"
- Coating:
- Anti-Static
- Water-/Oil Repellent, Fingerprint-resistant
- Low reflection
- Scratch-resistant
- Neutral Density
- Glass: Schott B270i
- Optical density: 0.3
- Filter factor: 2x
- F-stop reduction: 1
- Amount of light (ND0.0=1): 1/2
- Transmittance: 50%
- Optical density: 0.6
- Filter factor: 4x
- F-stop reduction: 2
- Amount of light (ND0.0=1): 1/4
- Transmittance: 25%
- Optical density: 0.9
- Filter factor: 8x
- F-stop reduction: 3
- Amount of light (ND0.0=1): 1/8
- Transmittance: 12.5%
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