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john hansen
climber
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Topic Author's Original Post - Jan 17, 2010 - 12:46am PT
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Trying to find that thread..
there were some directions to where it was taken from..
The next two weeks with all these storms backed up, there might be a break where you could catch it between the fronts ..with good light , in the afternoon. You know, if you just happen to be passing by.
Then again it might rain for the next two weeks straight.
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Gobee
Trad climber
Los Angeles
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Jan 17, 2010 - 01:17am PT
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Wow!
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pc
climber
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Jan 17, 2010 - 01:20am PT
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Wow! That is truly amazing. Nice find.
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John Moosie
climber
Beautiful California
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Jan 17, 2010 - 01:22am PT
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There was some good stuff on that thread. I wish that I could find it.
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John Moosie
climber
Beautiful California
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Jan 17, 2010 - 01:29am PT
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Hmm. I thought there was an older thread with more pics and discussion. Especially about whether it was genuine or not.
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wildone
climber
GHOST TOWN
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Jan 17, 2010 - 01:37am PT
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John Moosie
climber
Beautiful California
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Jan 17, 2010 - 01:44am PT
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Thanks Clint and Nita. I thought there was an older thread with more discussion. I might be misremembering, but I did think that I posted to it.
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Mungeclimber
Trad climber
sorry, just posting out loud.
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Jan 17, 2010 - 02:31am PT
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Hall Road, .65 mile south of E. Keyes Rd. About 3.5 miles east of Denair, CA. and about 67.25 miles from Half Dome and in this image, shot at 400mm, the grain elevator is about 1.5 miles away.
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Reilly
Mountain climber
Monrovia, CA
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Jan 17, 2010 - 02:39am PT
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I still say the perspective isn't right. Half Dome is too
tilted towards the viewer as it would look from above the valley
rim in a plane and not as it would look from the San Joaquin Valley
floor. There also doesn't appear to be adequate 'space' between the
grain silo and Half Dome. Nice job of 'shopping' IMHO.
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aguacaliente
climber
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Jan 17, 2010 - 03:20am PT
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Because the angle of the view is so low, atmospheric refraction is probably significant. The top of Half Dome is about 8700 feet higher than the central valley and if the photographer is 67 miles away, the geometric elevation is 1.4 degrees. This is small enough that the seeing-over-the-horizon effect may contribute.
http://en.wikipedia.org/wiki/Atmospheric_refraction
I think this might be why the perspective on the Valley looks like it is from a higher position than we'd expect the photographer to be at.
It's nice work finding the location and getting a clear day. This would be a great application for an infrared photograph (less affected by haze).
I followed a couple of links and got to this HeyWhatsThat panorama website http://www.heywhatsthat.com/?view=SV0A99AI which is very interesting.
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ß Î Ø T Ç H
climber
. . . not !
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Jan 17, 2010 - 03:33am PT
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With all due respect . . there are some gullible people on here .
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Clint Cummins
Trad climber
SF Bay area, CA
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Jan 17, 2010 - 03:38am PT
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Sometimes, you can lead a horse to water, but you can't make him drink!
:-)
I am certain such a photo is possible, because I have seen the lights in the central valley from the top of El Cap.
In Immoos' photo, it's clear a lot of El Cap is obscured by the intervening ridges, but we know Half Dome is above the Valley rim,
so we should be able to see pretty much all of the NW face, and this appears to be the case.
Because the distance of the shot is 67.25 miles from Half Dome,
the viewing angle is close to zero (or check arctan[(8800/5280)/67.25]) -
the angle is .025 radians = 1.42 degrees.
so the perspective is about the same as being level with the Valley rim,
or being on top of one of those intervening ridges.
from:
http://www.flickr.com/photos/trimmoos/3662612548/
" received another message concerning my Half Dome from Denair pic
informing me that it was not possible to see Half Dome from the central valley, therefore it was photoshopped...
What-everrrr. But it did get me looking at the image comments again and I clicked on brendon.m's link to www heywhatsthat com
Now I've done that before, but I had never before clicked the visibility cloak button.
The results are above and quite surprising. The top of Half Dome is theoretically visible from an incredibly large area.
Granted, from many places only the very top will be in view and difficult to see but I still find it fascinating.
If you live in the Central Valley anywhere in the red zone, get your binoculars,
telescopes or big telephoto camera lenses ready for the next clear day and catch a glimpse!"
And here's the map with the line of the shot -
areas in red are locations from which Half Dome is theoretically visible
(map not complete, because Mt. Diablo is not red).
(since I'm not the only one posting a huge photo):
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safl
Trad climber
Wahoo, NE
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Jan 17, 2010 - 10:42am PT
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Something doesn't quite jive, somehow.
Hey, Whatev.
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Srbphoto
Trad climber
Kennewick wa
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Jan 17, 2010 - 10:56am PT
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The lack of "adequate space" between the silo and HD is due to to using a 400mm lense. A longer lens compresses the space between objects.
Think of all the images of the foothills or Smokey Mountains where the mountains look stacked up on one another. If you were standing there it doesn't look that way. Slap a long telephoto on and viola!
The image does look a bit "off".
There is another photo from the top of Mt Diablo (about 125 miles away) that you can see Half Dome in an enlargement. I tried to find it but couldn't.
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Wack
climber
Dazevue
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Jan 17, 2010 - 10:58am PT
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There is a shot of HD taken from Mt Hamilton, Lick Observatory that I have seen. We had the reverse view from the big sloping ledge below the Robbin's traverse on HD. There was a dense layer of clouds across the central valley with really good lighting on Mt Hamilton, similar to looking through a tunnel. The cloud cover provided an effect like shading your eyes with your hand in bright sun light.
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