Solar eclipse

Try to cover the lens with a part of a CD.

From the NASA (not NAZA) site.
More recently, solar observers have used floppy disks and compact disks (both CDs and CD-ROMs) as protective filters by covering the central openings and looking through the disk media. However, the optical quality of the solar image formed by a floppy disk or CD is relatively poor compared to mylar or welder's glass. Some CDs are made with very thin aluminum coatings which are not safe - if you can see through the CD in normal room lighting, don't use it!!
 

Recent Posts

Members online

No members online now.

Forum statistics

Threads
143,099
Messages
1,467,637
Members
104,986
Latest member
dlr11164