Thursday, May 17, 2012

How to photograph a partial solar eclipse?

Question

There will be a partial solar eclipse tomorrow visible from Europe, Africa, Asia. I'm looking for photography tips. Looking for ideas for a typical amateur photographer but also for someone having a telescope.

Posting your photos after the eclipse would be a great bonus.

Asked by asalamon74

Answer

If you don't have a solar filter, the standard way to protect yourself when viewing a solar eclipse is to project the image via a lens or even a pinhole onto a suitable background. Why not set up a rig in which you use, say, an old camera lens projecting the image onto matte paper in the back of a darkened box and photograph that image? Fred Espenak briefly describes this approach in a Web article on solar eclipse photography. You can experiment today on an uneclipsed image of the sun. On another site there's also a curious pinhole camera setup illustration that is provided without comments. The "lens" is a precise pinhole in stiff metal foil mounted to a camera body cap. It looks easy and cheap to make. Starting out with a dense ND filter in front of this rig (or maybe a crossed pair of polarizing filters) might be advisable to avoid damage to a digital sensor.

Answered by whuber

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