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Message: <blockquote data-quote="Binastro" data-source="post: 3183580" data-attributes="member: 111403">. Regarding the last post, my neighbour was outside in the Street and I showed him the sunspot using the welders glass 13 large size. I don't think that his eyes are that great, but he did see the sunspot.He is a keen photographer, and when I mentioned the eclipse on March 20, he says he had neutral density filters.I explained that a neutral density filter is totally inadequate, maybe reducing the sun's light 10 times. You need an approved filter that cuts down the light about 100,000 times, maybe more.For others, with similar ideas of using anything dark, please read the safety tips in the thread above.You really do have to be careful if you want to observe the partial Eclipse on March 20 or the Sun at any time.</blockquote>