TS Optics 71SDQ review

71SDQ first look TS Optics 71SDQ quadruplet refractor TS Optics 71SDQ quadruplet refractor is somehow new product targeted mainly for portable…


Astro applications CPU hunger

M1 Crab nebula World today is flooded with data. This also applies to astroimaging amateurs. Modern CMOS cameras has a large number of pixels…


iOptron Smart EQ Pro - quick review

About two months ago I purchased iOptron Smart EQ Pro mount - and here is my small review. Smart EQ Pro is a tiny equatorial mount with GoTo that,…


Few nights with Celestron CGX - night I

It is pretty close to summer solstice, so plenty of time for preparing setup for night session. Day is extremely long, and night ends in no time.…


To CMOS or not to CMOS

CMOS sensor based astronomy cameras are becoming more and more popular among astrophotography amateurs. What differs CMOS from CCD? Is this really…