G.O. by moonlight--well, by some light
Posted by Doug on Friday, January 25, 2008 3 comments
Categories: buildings, light and shadow, night, observatory
Love a rocket
After all the shots of earth's satellite I've taken, I feel as though I need to include this moon (which was a bit easier to shoot) inside the Griffith Observatory.
Posted by Doug on Friday, January 25, 2008 0 comments
Categories: misc, moon, observatory
Fun with exposure / 42 degrees
The Foucault Pendulum in the central rotunda of Griffith Observatory. This 240-pound ball swings on a cable over a this circular pit with a lighted ring around the perimeter.
Here's two virtually identical shots of the ball. Both use the same aperture setting (F/3.5, for the photographically inclined).
Here's what it looks like with a 1/15 second exposure:
Here's what it looks like with a 1/125 second exposure:
Hey look: That lighted ring is divided into 42 sections (numbered 0 - 41). All because we let the lens be exposed to the light for 1/110th of a second less (shorter than the blink of an eye).
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"Photo" means light, doesn't it? Imagine that: Photography depends entirely on light.
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Speaking of the 42 sections: They're not only designated on the lighted ring:
But also around the upper lip of the wall around the pit (directly opposite the corresponding number on the ring below):
Posted by Doug on Friday, January 25, 2008 0 comments
Categories: light and shadow, misc, observatory
Do the astro
Astronomers Monument, on the grounds of Griffith Observatory, at sunset and after dark.
Posted by Doug on Friday, January 25, 2008 0 comments
Categories: art, observatory, SoCal
Rebel with a bust
Posted by Doug on Friday, January 25, 2008 0 comments
Categories: clouds, misc, mountains, observatory, SoCal
Meridian
At the Griffith Observatory, in the "Gottlieb Transit Corridor"; had it been a sunny day this would have been focusing the sun's rays, but it was still interesting after the rain:
Posted by Doug on Friday, January 25, 2008 0 comments
Categories: misc, observatory, rain
