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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
8"(20cm) cake box filter
Bino filter
Bino filter
Solar glasses (2 pairs)
Solar glasses (2 pairs)

Venus Transit 2004 Mercury Transit 2003 Low Sun Sunspots Solar eclipses
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All images by Jerry Xiaojin Zhu unless noted otherwise. Feel free to use them for your personal enjoyment. For other usage please contact the author at jerryzhu@gmail.com