The regular sized personal and small group viewer printed in full color cardboard.
See YouTube DEMO VIDEO by Wayne Schmidt
Great portable solar viewer!
The Solarscope is produced in two sizes - Standard (2-4 observers) and Educational for larger observing groups (2-7 observers). This product is a safe, easy to use and inexpensive way to observe the Sun.
Observation screen size is 340 x 340 mm for Education Model and 240 x 240 mm for Standard Model. The sun's image size on the projection screen: diameter about 115 mm / 80mm (Education/Standard)
The Solarscope is: easy to adjust, robust, has a large field of view, eye safe and not expensive.
Solarscope is Easy to use: very simple to align, easy observation, robust.
What can be observed: Sun spots, Transits (Mercury, Venus), Eclipses (Moon)