How to Make a Solar Eclipse Lens Filter for $15 Instead of Paying $150+

How to Make a Solar Eclipse Lens Filter for $15 Instead of Paying $150+
ФОТО: petapixel.com

With the Great American Eclipse on August 21, 2017, only weeks away, I decided to put together some solar filters. With the high travel costs to get to the eclipse from Southern California, I saved some money through purchasing solar filter sheets instead of the pre-made filters.

To facilitate a fast detachment during totality, compared […].

eclipse solar

2017-8-10 19:37

eclipse solar → Результатов: 6 / eclipse solar - фото