Order No. 210.NSF
Cardboard kit for an attachable filter that allows a direct view of the solar disk with the Newtonian reflecting telescope.
Thanks to the attachment and the matching filter, sunspots can be observed without hesitation. The filter made of double aluminised, CE-tested BAADER AstroSolarTM film with a filter factor of 1:100,000 (opt. density 5) has proven itself millions of times during the 1999 solar eclipse and offers optimum safety for the eye.
Also available as set: see 245.NSS
Packaging: 300 x 210 x 1 mm