Astronomik - H-Alpha 6nm CCD Filter - 1.25" Round Mounted

Be the first to review this product

$199.95

Availability: In stock

The Astronomik 6 nm H-alpha filter is an extremely narrow emission-line filter for CCD photography. The filter lets the H-alpha light of emission nebulae pass and blocks nearly the whole remainder of the spectrum where the CCD is sensitive. The Full Width at Half-Maximum (FWHM) of 6 nm is optimized for a maximum contrast between the (H-alpha emitting) object and the background. The contrast gain is much higher than with our 12 nm emission line filters but you won't see as much stars in the resulting images. The design of the transmission curve makes it possible to use the filters with instruments from 1:3.75 to 1:15.


With this product, you earn 200 loyalty point(s). Find more about this!

SKU: ASN-HA6-1