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…


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…


Powering your setup

If you do astroimages these days you need some electricity. Long time ago it might not be a requirement, but today - yes it is :) Usually amateur…


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…