function
1.Gorilla Glass, durable and scratch resistant.
2.Multi-layer coating
3. Aluminum alloy frame, corrosion resistance.
4. 9H hardness, scratch without a mark.
ND filters
1. Reduce the amount of visible light that enters the lens, allowing users to take advantage of wider apertures or slower shutter speeds, especially in bright conditions.
2. Works especially well for portraits by allowing the photographer to reduce the depth of field, producing pleasant background blur while keeping the subject in sharp focus.
3. Emphasize motion by enabling slow shutter speeds in bright light, bringing life to photos that would otherwise look frozen in time.
4. This particular filter is multi-coated to minimize reflection on the filter surface, which reduces flare and ghosting, and produces sharp contrast and balanced color.