Shop closed until 4th January
Cart 0
Cart 0
Light Pollution CLS Filter 1.25"

Light Pollution CLS Filter 1.25"

(inc VAT)
Only 1 left!

Light Pollution Filter CLS for deep sky work

This filter passes light in the ranges for OIII and H-beta which allows excellent views and eliminates much artificial light pollution. It is similar to the UHC filter, but passes a wider band, transmitting more light.

90% transmission of main nebula emission lines (i.e. Ha 656nm, OIII 496nm & 500nm, SII 672nm and H-beta 486nm)

0.1% transmission of off-band, specifically the major emission lines of artificial light pollution (i.e. Na 589nm, Hg 435nm and 578nm).

This is threaded for 1.25" eyepieces.

More from this collection

Sold Out UV-IR Cut Filter 2"

UV-IR Cut Filter 2"

£24.00
(inc VAT £28.80)

Sold Out UV-IR Cut Filter 1.25"

UV-IR Cut Filter 1.25"

£15.00
(inc VAT £18.00)