A 3d printable motorised filter wheel. The wheel is motorised with a 28BYJ-48 stepper with control provided by an Arduino Nano. The firmware is compatible with Xagyl Indi and ASCOM drivers. I was in ...

Shortly after I got started in astrophotography, I noticed that the stars in my images were slightly elongated due to some differential flexure somewhere in my imaging system (see Cloudy Nights thread ...