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avidemux
2014-Sep-08, 09:33 AM
Hi all.

OK so these were shot with the same camera with same settings. Both are supposedly at 28 km altitude in the stratosphere. Why does in the first image (NOT MINE) the sky appear pitch black while on the rest it is slowly fades to dark blue?

Any chance when the sun is in the horizon (evening time) the sky doesn't fade to black as much when looking from the stratosphere? That's the only thing I can think which is different between the first image and the last two.
Or do you think my own payload didn't reach even >15 km altitude?

http://i.imgur.com/X4XHwoC.png


http://i.imgur.com/AzU66TT.jpg
http://i.imgur.com/O5uVJkL.png
http://i.imgur.com/4R6Vv3T.png

more info about how these were shot: habhub.org

NEOWatcher
2014-Sep-08, 12:42 PM
Angle of the sun, and changes in camera aperture (or automatic exposure and color corection firmware of the camera) will do it.

Hornblower
2014-Sep-08, 01:25 PM
The first one, the one with Santa Claus in the foreground, was shot with a different lens, as indicated by the horizon curvature. The others, with the rabbit, show the telltale distortion from a fisheye lens, which is absent in the first one. These appear to be two separate missions, with the Santa shot perhaps taken at a higher altitude.

grapes
2014-Sep-08, 02:35 PM
Hi all.

OK so these were shot with the same camera with same settings. Both are supposedly at 28 km altitude in the stratosphere. Why does in the first image (NOT MINE) the sky appear pitch black while on the rest it is slowly fades to dark blue?

Any chance when the sun is in the horizon (evening time) the sky doesn't fade to black as much when looking from the stratosphere? That's the only thing I can think which is different between the first image and the last two.
Or do you think my own payload didn't reach even >15 km altitude?

http://i.imgur.com/X4XHwoC.png


http://i.imgur.com/AUz66It.jpg
http://i.imgur.com/O5u5VkL.png
http://i.imgur.com/4y6Vv3T.png

more info about how these were shot: habhub.org
So the last three were taken on your single mission, but the first was on a different mission?

avidemux
2014-Sep-08, 09:04 PM
So the last three were taken on your single mission, but the first was on a different mission?
yes