Filters & Filter Wheels

ZWO F-HLDR – Precision Filter Holder for Your Astrophotography Needs Astrophotographers know that the difference between an average image and a stu...

ZWO EFW Mini 5-Position Filter Wheel – Compact, Reliable, and Precision Engineered If you’re looking to streamline your astrophotography workflow ...

The H-Alpha 7nm from Optolong works fantastically as a photographic filter, but also works for viewing faint emission nebula. Optolong filters are ...

ZWO EFW-8x1.25" Electronic Filter Wheel – Precision, Automation, and Seamless Astrophotography When it comes to astrophotography, precision is ever...

This new Celestron 2" Oxygen III light pollution line filter isolates the two glowing emission lines of doubly-ionized oxygen (at 4959 Ångstroms an...

The 1.25" Lunt PF1.25 polarizing filter is designed for use with 1.25" eyepieces in the Lunt LS1.25HW Solar Wedge to control the image brightness d...

This Celestron Oxygen III light pollution filter has a very narrow passband for very high contrast on emission nebulas, making it a good choice for...

If you have a big scope (10" in aperture and larger), this #29 dark red Astro-Tech 1.25" eyepiece filter can be useful when observing Mercury and V...

Take back the night sky by using the Optolong L-eXtreme 1.25" Dual Passband filter when imaging. Take your backyard imaging to places you never tho...

Thousand Oaks LP-3 Oxygen III Line Filter – 2" Eyepiece Format Bring Planetary and Emission Nebulae Into Bold Contrast The Thousand Oaks LP-3 O-III...

Look no further for an LRGB set for your 2" filter wheel or drawer. Time to get serious with your monochrome CCD or CMOS camera.  The filter set wo...

Take your imaging up a notch with the improved OIII filter from Optolong. Optolong filters are here to help all of us Earth based Astronauts.  As l...

Take your imaging up a notch with the improved OIII filter from Optolong. Optolong filters are here to help all of us Earth based Astronauts.  As l...

Enhance your 8” Rowe-Ackermann Schmidt Astrograph (RASA) by blocking light pollution, improving image contrast, and darkening the sky background. T...

The SII 6.5nm from Optolong works fantastically as a photographic filter, but also works for viewing faint nebula. Optolong filters are here to hel...

Explore Scientific 1.25" 0.9 Neutral Density Filter If you’ve ever tried observing the Moon through a telescope without a filter, you know just ho...

The SII 6.5nm from Optolong works fantastically as a photographic filter, but also works for viewing faint nebula. Optolong filters are here to hel...

The H-Alpha 7nm from Optolong works fantastically as a photographic filter, but also works for viewing faint emission nebula. Optolong filters are ...

Thousand Oaks LP-2 Narrowband Filter – 2" Eyepiece Format High-Contrast Nebula Views, Even from the City The Thousand Oaks LP-2 is a 48mm narrowban...

This is the complete set of imaging filters to take your session to a higher level. This Optolong set comes with 7 filters.  The LRGB set, H-Alpha,...

Look no further for an LRGB set for your 1.25" filter wheel or drawer. Time to get serious with your monochrome CCD or CMOS camera.  The filter set...

The 2" Lunt PF-1 polarizing filter is designed for use with 2" eyepieces in the Lunt LS2HW Solar Wedge to control the image brightness during white...

Explore Scientific 2" 0.9 Neutral Density Filter If you’ve ever looked at the Moon through a large-aperture telescope and found yourself squinting...

Take back the night sky by using the Optolong L-eXtreme 2" Dual Passband filter when imaging. Take your backyard imaging to places you never though...