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| Every eclipse does not come from Japan. |
It was time to enjoy the solar eclipse in Rochester, NY. The travel budget exhausted, a trip to the "Path of Totality" was out of the question. So ten minutes before peak viewing time, a pinhole projector box was constructed so that we could enjoy a visage of the 70% obscured sun.
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| A fine piece of engineering, don't you think? |
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| My lovely partner, Mary, demonstrating proper projector viewing technique. |
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| Why are there two suns visible? What planet are we on? |
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| It took far too long, but it finally became apparent that multiple images were the result of unexpected holes in the corners of the box. Not all bad, these holes provided different exposures due to their larger size. Not all good, the larger holes were less well focussed. |
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| Finally got it more or less right with the pinhole providing the projection. Pretty good representation of cloud cover, too. |
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| Performance might have been better if this box was used. |
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| Had I been in the path of totality, I would have had one of these. Never thought about it before, but if you ignore the cap text and consider way the bright yellow surrounds the dark area... |
Bottom line? With 70% of the sunlight obscured, it was a brighter than usual day in Rochester.
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Improvements to be considered
for April 8, 2024
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| A fine rendition via optics. |
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| A similar approach including pool and beverage. Maybe the pool is not appropriate for the next eclipse in April of 2024. |
I just used my camera, f40, 300mm, 1/4000th of a second. Used a stick in the ground to "aim" the camera toward the sun without using the viewfinder or the sensor. Still ended up washing out the image and really need to pick up some ND filters. Might have time to do that before 2024.
ReplyDeleteHow about a pinhole in aluminum foil over the lens? I'll have to test that prior to 2024.
DeleteGlad to see you used magnification. Without that, it's really just a dot, even if in focus and well exposed.
My welders Google's worked well to get a direct view. PS your images are up side down
DeleteWell of course! It's a pinhole projector, you pinhead!
DeleteLearned several things that I should have known or researched as a Physicist (even though I never took a formal Optics Course and learned almost everything after I started working at Kodak). The farther the distance from the pinhole to the image plane the larger the image, the larger the pinhole the brighter the image and also the fuzzier (or less well defined) the image.
ReplyDeleteYour background may explain your physical play on the pitch.
DeleteRegardless, hope you are well.