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Gotham 7.5K: A Rare High Altitude Night Flight Above NYC

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Re: Gotham 7.5K: A Rare High Altitude Night Flight Above NYC

#12
FTA: > Had we gone just a few thousand more feet up (around 11,000-12,000 feet) we would have needed oxygen masks!

Really? I was roaming around at the top of Mauna Kea last summer (14K'), and hiked to the top of Mt Lassen too (10.5K'), but never felt the need for ozygen masks.

Re: Gotham 7.5K: A Rare High Altitude Night Flight Above NYC

#14
post #6

strange colors - bluish/greenish like toys - real or camera/filter quirks? One can wonder what images this camera would produce http://www.extremetech.com/extreme/146909-darpa-shows-off-1-... "With an imaging unit that totals 1.8 billion pixels, ARGUS captures video (12 fps) that is detailed enough to pick out birds flying through the sky, or a lost toddler wandering around. "

The "like toys" effect is from the tilt-shift lens he used for some of the shots. Not sure about the colors though.

Re: Gotham 7.5K: A Rare High Altitude Night Flight Above NYC

#15

Can someone explain the rainbow-like colors? This is from the lenses/postprocessing/other?

Big advertisements probably have a lot more color than the normal red-yellow-white you see from traffic. Chances are it's not quite so vivid to the naked eye, but a camera sensor with nice flat full-spectrum sensitivity can reveal all the color. You see this a lot with telescope photos; in low light our eyes mostly just pick everything in the sky as white dots, but a photograph can capture a lot more.

Re: Gotham 7.5K: A Rare High Altitude Night Flight Above NYC

#16

FTA: > Had we gone just a few thousand more feet up (around 11,000-12,000 feet) we would have needed oxygen masks! Really? I was roaming around at the top of Mauna Kea last summer (14K'), and hiked to the top of Mt Lassen too (10.5K'), but never felt the need for ozygen masks.

Regulations require it, also air likes to cling to to the surface, plus you had a chance to acclimate and/or are experienced with such a thing.

Re: Gotham 7.5K: A Rare High Altitude Night Flight Above NYC

#18
post #6

strange colors - bluish/greenish like toys - real or camera/filter quirks? One can wonder what images this camera would produce http://www.extremetech.com/extreme/146909-darpa-shows-off-1-... "With an imaging unit that totals 1.8 billion pixels, ARGUS captures video (12 fps) that is detailed enough to pick out birds flying through the sky, or a lost toddler wandering around. "

The "like toys" effect is from the tilt-shift lens he used for some of the shots. Not sure about the colors though.

Ahhh, thanks so much for that. I KNEW it looked like pictures from a diorama or a model train or something but I couldn't put my finger on WHY.

http://en.wikipedia.org/wiki/Miniature_faking

Re: Gotham 7.5K: A Rare High Altitude Night Flight Above NYC

#20
post #16

FTA: > Had we gone just a few thousand more feet up (around 11,000-12,000 feet) we would have needed oxygen masks! Really? I was roaming around at the top of Mauna Kea last summer (14K'), and hiked to the top of Mt Lassen too (10.5K'), but never felt the need for ozygen masks.

Regulations require it, also air likes to cling to to the surface, plus you had a chance to acclimate and/or are experienced with such a thing.

The regulations actually don't require it. Under FAA rules for general aviation ("Part 91"), you need oxygen between 12,500 and 14,000 feet if you remain there for more than 30 minutes, and it's only once you climb above 14,000 feet that the pilot unequivocally has to have it. You need to get to 15,000 feet before the passengers have to have oxygen provided.

(More: http://www.faa.gov/pilots/safety/pilotsafetybrochures/media/...)

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