Cleaning telescope glass - ATM, Optics and DIY Forum - Cloudy Nights
how to clean telescope lens and eyepieces - YouTube
Amazon.com: Aeroclipse Optic Cleaning Fluid - Non-Flammable Camera Lens Cleaner and Digital Sensor Cleaning Solution for Coated Lenses, Telescope, Projector and Other Optical Products - Dropper Tip (15ml) - 0.5oz : Electronics