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atimo
2010-Mar-01, 09:57 PM
Some apollo 8 images where taken with some kind of filter / film issue resulting in Red and Blue color moons.

http://history.nasa.gov/ap08fj/photo14-b.htm


Image of receding Moon through red filter inadvertently taken on colour film.


Would anyone happen to know, in detail, what exactly happened?

slang
2010-Mar-01, 11:42 PM
Some apollo 8 images where taken with some kind of filter / film issue resulting in Red and Blue color moons.

http://history.nasa.gov/ap08fj/photo14-b.htm

Would anyone happen to know, in detail, what exactly happened?

Apparently the astronauts forgot, or were not instructed, to switch the magazine on the camera from a color film to a b&w film. If nobody here can give the answer, you can try to search the Flight Journal (http://history.nasa.gov/ap08fj) for clues about Magazine B, or you can search this 350 page PDF file for clues: Analysis of Apollo 8 photography and visual observations (http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19700005062_1970005062.pdf).

atimo
2010-Mar-02, 02:49 PM
I'll look into those links, thank you!

ngc3314
2010-Mar-02, 03:27 PM
One result of the crew being really busy could be that inappropriate exposures were used. I think it was on Apollo 8 that a roll of very high-speed film (ASA 1600?, intended for Earthlight photography) was given an ordinary daylight exposure appropriate to something maybe 16 times less sensitive, and Kodak came up with a processing technique to salvage the images.

slang
2010-Mar-03, 12:20 AM
I'll look into those links, thank you!

You're welcome. Please note that both links are part of the same website of your original link, only taking two mouse clicks to get there. I'm not critizing, just dropping a hint that there might be more to be found on a NASA page than just one single image (or set of images).

Anyway, if you do find something substantial about these coloured images, please share it with us.

TampaDude
2010-Mar-04, 05:19 PM
Hmmm...could we make a 3-D thing with the red and blue glasses, then?

Luckmeister
2010-Mar-04, 06:01 PM
Hmmm...could we make a 3-D thing with the red and blue glasses, then?

Yes if the change in location relative to the Moon between shots provides the proper parallax. Also the images would have to be rotated to provide horizontal alignment for viewing. I looked at them through my red/blue anaglyph glasses and the colors are close enough to work pretty well but I haven't had time to check out the parallax issue.

If you have a pair of the glasses, you might enjoy looking at the Space3d page I put together on my Space Science site (http://home.comcast.net/~mcluster/Space/space3d.html).

Mike

TampaDude
2010-Mar-04, 09:01 PM
Yes if the change in location relative to the Moon between shots provides the proper parallax. Also the images would have to be rotated to provide horizontal alignment for viewing. I looked at them through my red/blue anaglyph glasses and the colors are close enough to work pretty well but I haven't had time to check out the parallax issue.

If you have a pair of the glasses, you might enjoy looking at the Space3d page I put together on my Space Science site (http://home.comcast.net/~mcluster/Space/space3d.html).

Mike

Thanks...good 3D pics! The T-Rex was awesome. :cool: