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Light pollution is encroaching more and more on where we live and where we do...

narrowband filters can open up opportunities to image targets they might not have otherwise been...

Unlike other Astrodon filters, the Photometric filters (Johnson-Cousins and Sloan) do not come as 36mm...

Here is something you can try at home: Any cellphone camera or DSLR camera will...

I just (July 31, 2018) finished updating the inventory numbers on the website and the...

Astrodon LRGB Gen2 I-Series Tru-Balance Filter Sets A common question: Should I get E-Series or...

Pretty nice! OIII Gen3 Data Sheet

We have halved the price of the Lumicon 2 inch Econoline OIII filter! Now only...

This is a common source of confusion. So...here we go. The glass portion of the...

Lumicon UHC comes out on top. We periodically test samples of our competitors to keep...