- Light pollution filter.
- Designed to block out the wavelengths of light emitted by mercury vapour light and other common causes of light pollution.
- Provide higher transmission at critical hydrogen alpha and hydrogen beta lines than competing filters.
- Bright, light polluted skies appear much darker and the contrast between object and sky is significantly improved.
- 1.25 inch thread for attaching to your eyepiece.
Sale!
OVL Light Pollution Filter 1.25 Inch
Original price was: $22.00.$15.40Current price is: $15.40.
Light pollution filters are designed to block out the wavelengths of light emitted by mercury vapour light and other common causes of light pollution. Provide higher transmission at critical hydrogen alpha and hydrogen beta lines than competing filters. Bright, light polluted skies appear much darker and the contrast between object and sky is significantly improved. 1.25 inch thread for attaching to your eyepiece.
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