Filters

1.25" O-III Nebula Filter (310205)

Description Oxygen III  - This is the highest contrast Nebula Filter in the series, a line filt...

Nebula Booster NB2

Description The NB2 filter is a dual line-pass filter which can be used with one-shot color (OSC) ca...

Quad BP Filter 2"

QBP (Quad Band Pass) is a relatively wider narrowband filter, which specifically passes SII, Ha, OII...

UV IR CUT filter – 2″

Product Description ZWO 2″ IR-cut filter is suitable for color camera with AR protect window. The ZW...

Protective T-Ring with Optional Built in Filters

Description Although Baader officially calls this a T-ring, this bayonet offers far more. The Baader...

Contrast-Booster Filter

Description Contrast-Booster Filter - 1.25" (BPCB125) and 2" (BPCB2) A unique filter for many differ...

ZWO New Narrowband 36mm Filter

Product Description Narrowband filter do not eliminate the effects of light pollution or increase th...

Neutral Density Filter, 1.25" (94105)

Description The Neutral Density Moon Filter attaches to a 1.25" eyepiece to lower the amount of ligh...

IR 850nm Pass Filter – 1.25″

Description IR pass filter for wavelengths exceeding 850nm.  This filter comes in a 1.25" threa...

Light Pollution Suppression (LPS) QRO Filter - D1

Description IDAS QRO Series filters Light pollution suppression (LPS) filters are designed to suppre...

Light Pollution Imaging Filter, RASA 11 (93617)

OVERVIEW Take beautiful images of deep-sky objects from light-polluted suburban locations with the R...

ZWO 20nm CH4 Methane filter

Product Description The ZWO Methane band (CH4) filter is a special filter for photographic use....