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Warning: make sure you understand the danger of using floppy disk, X-ray plate etc. as solar filters! Read the following Sky & Telescope article Solar Filter Safety by Ralph Chou.
My homemade solar filters made from a single piece of Baader Astrosolar sheet, and there's even some left...
![]() 8"(20cm) cake box filter |
![]() Bino filter |
![]() Solar glasses (2 pairs) |
Venus Transit 2004 | Mercury Transit 2003 | Low Sun | Sunspots | Solar eclipses |
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