Optolong Filters

OPTOLONG 36mm" H-ALPHA 7nm FILTER

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$264.99
Your Price: $209.99
OPTOLONG 36mm" H-ALPHA 7nm FILTER
SKU:
O-HA-36
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Product Overview

  • H-alpha 7nm 2" 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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