- H-alpha 7nm 36mm Filter
- A threaded version of this filter is pictured. Actual product is a 36mm unmounted 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
Sale!
Optolong 36mm H-Alpha 7nm Filter
Original price was: $135.10.$91.72Current price is: $91.72.
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