Unlike other ways of viewing the Sun, this wooden, folded-Keplerian telescope
is safe and easy to use. By using a series of mirrors, the telescope projects
a 3 1/2” (85 mm) image of the sun onto a white viewing screen that can
be easily seen by several students at once. They will be able to trace the
changing positions of sunspots and compare them on a daily basis. The kidfriendly
telescope is a folded refractor, F11, altitude-azimuth design and can
be used to observe eclipses as well.Features:• 27 1/2” (700 mm) FL objective
lens• 2 1/2” (61.7 mm) objective aperture stopped down to 2 1/4” (57 mm)•
1/2” (12.5 mm) fully-coated FL Plössl field lens, four element with a 10 mm
aperture• 0.75° field of view (1.5 solar diameters)• 2.2 cm gnomon (±30°)
and 22 cm pinhole projection (±3°) pointing aids• Overall size: 16” x 15” x 6”•
Weight: 6 lbs., 9 1/2 oz.