Optolong Filters

OPTOLONG 1.25" H-ALPHA 7nm FILTER

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Your Price: $236.99
SKU:
O-HA-1
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Product Overview

  • H-alpha 7nm 1.25" Filter
  • A very narrow emission-line filter
  • Permits a 7nm bandwidth of light (focused on the 656nm wavelength) through
  • Blocks transmission of contrast-killing light pollution wavelengths

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