The path to Guiding

Entry level equatorial mounts don’t tack accurately for longer than 60 seconds. It gets even harder to track precisely with longer focal lengths. Guiding is the answer and my next major goal in improving the astrophotography setup. By guiding, you can keep exposing for much longer times (5-15min and even beyond). That will allow you […]

Building a Flat Frame Box

Stacking images to increase SNR (signal to noise ratio) is a fundamental task of astrophotography. Aside from the light frames, which are the actual image data, there are also 4 types of calibration frames: Bias, Darks, Flats and Dark Flats. In order to remove vignetting and any uneven field illumination caused by dust or smudges found […]