- Anti-reflection:Yes
- Density:0.3 to 2.7
- Effect:Cuts light by 50% to 99.75%
- Grade:Japanese AGC glass
- Nano Coating:18-layers
- Reduces Exposure by:1 to 9 Stops
- Reflectivity:'0.6%
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Machining Technology of K&F Concept Filters
Way of selecting correct lens filter size
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