This is just a conjecture: I do not think this focused image of the
eclipsed sun is a pin-hole artifact. My guess is that it is a focused
image by the lens, but is a 2nd or 3rd internal lens relfection. In
this manner, the image might be reversed, and its brightness greatly
attenuated, so
Dear Friends
With all this talk of pinhole photography, I thought you might like the
attached - taken over a continuous 6 month period by Justin Quinell of Bristol
over the famous Brunel suspension bridge. He uses a beer can with a nail hole
as his camera The photos are made on photo paper
