Different times of astrophotography

Long time ago we have been doing astroimages with negative (or positive) film. We had one chance to take a long exposure photo. Then we have been…


How good guiding can be

Why we need to guide? Because mount mechanics are of limited accuracy, and once this accuracy is lower than our imaging setup resolution we need…


Pixel scale and resolution

Is astrophotography pixel scale and resolution the same? Can we increase resolution just by making pixels smaller? In some cases we can, but quite…


CMOS gain settings part II

In the first part I made a little introduction on gain setting in CMOS camera and also presented simple comparison made with luminance filter. In…


CMOS gain settings part I

Once we start to image with CMOS cameras, then we need to deal with more settings than with CCD cameras. I described some of them before, but now I…


CMOS settings challenge

CMOS sensor based cameras are becoming more and more popular among both new astrophotographers but also among current CCD users. Many people in this…


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…