Optolong OIII 6.5nm 2in Filter

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SKU:
OLG-11502
Your price: $352.00

Description

Optolong OIII 6.5nm 2in Filter

Designed for nebula observation allowing 6.5nm bandwidth of light centered on a wavelength of 500nm through. which corresponds to OIII emission lines.

Reduces the transmission of artificial light including mercury vapor, and both high and low pressure sodium vapor lights and skyglow.

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