16 Aug
2011
16 Aug
'11
8:19 a.m.
On 8/14/11, Patrick Wiggins <paw@wirelessbeehive.com> wrote:
The Danger of Eyepiece Solar Filters
I'm amazed these are still sold with telescopes. Where's Ralph Nader when you need him? I had one of these explode on me as a young boy in the '60's. Fortunately I heard stress cracks in the glass just before it broke, and got my eye away just in time.