by Richard205maria 2016.5.22 SUBSCRIBE SUBSCRIBED UNSUBSCRIBE here is a short clip using the new camera ZWO asi290mm (monochrome) and another clip using the ZWO ASI174mm cool, both cameras are very good in their fields, I have my favorite one, even though I don’t have many good nights for testing and doing astro-images …i hope One […]

by Chuck’s Astrophotography 2017.5.24 SUBSCRIBE SUBSCRIBED UNSUBSCRIBE This is my new ZWO 8-position electronic filter Wheel (EFW). This filter wheel supports the 1.25″/31mm size. I bought this because I was tired of having to swap out broadband and narrowband filters when I used the 5 position filter wheel. An EFW is a must for astrophotography.