I took these images with a 32 cm reflector. I achieved f/28 using eyepiece projection with a Nagler eyepiece. I used either a Phillips ToUcam Pro webcam and Wratten 25 filter or the same filter with a Lumenera SkyNyx 2.1M camera. Frames from avis were stacked using Registax 3 or Registax 4beta, and assembled using Multiple-Alignment-Point processing.