T-Shirt Flat Field Hoop
The idea for using a T-shirt placed over the front of the telescope came from Ron Wodaski (The New CCD Astronomy) who demonstrated how easy and accurate a flat-field can be obtained. The T-shirt acts as a diffuser and can be used during the daylight or night. By using my "Flat-Field Hoop" the T-shirt can be easily and rapidly placed on the scope, without the fuss of rubber bands or bungee cords. It is always ready for use.
Observatory Construction Details
Email: JGPierce(NOSPAM)@comcast.net