Click to Enlarge The Electromagnetic Spectrum

Originally prepared for and given at IISAC2011, this presentation by John Bambury covers all aspects of filters, including why we use them and what we're trying to achieve, how filters work, the different types of filters for both deep sky and lunar and planetary observing, and more.

Download the 2mb PDF here:

	Visual_Astronomy_and_Filters.pdf	1.55 MB
	Visual Astronomy and the Use of Filters - presentation by John Bambury given at IISAC2011