1.professional manufacturer
2.high quality,competitive price & prompt delivery
3.used for optical instruments
4.best service
Port: shanghai
Minimum Order Quantity: 100 Piece/Pieces
Supply Ability: 100000 Piece/Pieces per Month
Payment Terms: L/C,T/T,Western Union
Contact SupplierPackaging Detail: Inside packing is foam an paper,Outside is wooden packing
Delivery Detail: within two weeks
Ideally, neutral density filters attenuate light irrespective of wavelength. There are two basic principles: Absorption glasses and metal coated density filters. We focus on the many metal coated filters. These metal filters are "more dense” than absorbing glasses (i.e. attenuation varies only slightly with wavelength).