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b w NL3 Close Up 3 49mm



The B W Filter Company has been manufacturing optical filters for over 50 years. Their filters use S
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b   w NL3 Close Up  3 49mm
The B W Filter Company has been manufacturing optical filters for over 50 years. Their filters use Schott optical glass from which the filters are diamond cut, precision ground and then polished to ensure flatness on both surfaces and uniform thickness throughout. These, among other innovative measures, allow them to offer filters that meet the needs of even the most discriminating users.B W NL 3This lens is a 3 diopter with a 333mm focal length

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