marvellous. The optics are serious telescope quality. It's a very easy and safe way to see sun spots and to draw them. Great for use with kids; and astronomers find it clever too.
Sara Sara Schechner, Ph.D. David P. Wheatland Curator Collection of Historical Scientific Instruments Harvard University, Science Center B-6 Cambridge, MA 02138 Tel: 617-496-9542 Fax: 617-496-5932
