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Altair G-Band Solar Contrast Filter (430.3nm) 2nm 1.25"

altairastro.com/.../altair-2nm-g-band-solar-contrast-filter---125-4303nm-13245-p.asp
TypeSolar
SizeRound 1.25"
Bandwidth2 nm
Users 16
Images 611
Most often used with
ZWO ASI178MM