Why might the diamond of the diamond ring seem so large?

[Attiyah Zahdeh]

Why might the diamond of the diamond ring seem so large?

Can astronomers explain why the diamond of the diamond ring of the solar eclipse might sometimes seem even as large as the solar disk itself?

http://www.flickr.com/photos/webgrrl/153532544/

http://www.mreclipse.com/SEreports/TSE1994reports/image/TSE94-113w.JPG

http://web.rosa.ro/english/general/highlights/Photos/1999/e0811e2.htm

[Radar]

This is easy.

Because your eyes or camera aperture is setup during totality gather as much light as possible in that low light condition, hence, the aperture is wide open, and as soon as the sun starts to appear out from the edge of the moon, that light is way too bright for our totally open aperture, and as a result our eyes or the camera then needs to narrow the aperture or pupil to get us back to a normal image.

But for that split second when we see the diamond ring. Its just a case of simple over exposure.

This first clip has the aperture adjusted correctly. Note the thin Corona even shows a prominance.

http://www.youtube.com/watch?v=b82s74UV6KQ

Same eclipse, different camera settings, much much thicker Corona. Same thing happens with diamond rings.

http://www.youtube.com/watch?v=gD3bLFTtP8M

Ray

[Attiyah Zahdeh]

This is easy.

Because your eyes or camera aperture is setup during totality gather as much light as possible in that low light condition, hence, the aperture is wide open, and as soon as the sun starts to appear out from the edge of the moon, that light is way too bright for our totally open aperture, and as a result our eyes or the camera then needs to narrow the aperture or pupil to get us back to a normal image.

But for that split second when we see the diamond ring. Its just a case of simple over exposure.

This first clip has the aperture adjusted correctly. Note the thin Corona even shows a prominance.

http://www.youtube.com/watch?v=b82s74UV6KQ

Same eclipse, different camera settings, much much thicker Corona. Same thing happens with diamond rings.

http://www.youtube.com/watch?v=gD3bLFTtP8M

Ray

Were the overexposure the right reason of the enlargement, then all the Baily's beads should be enlarged. No doubt, the enlargement of all the Baily's beads would give a ring with many diamonds such that there would be no probability to see a complete black disk during the totality as long as the overexposure is used.