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Originally posted by Acharya
here, here, here here
[edit on 12-10-2009 by smurfy]
Originally posted by Skeptical Ed
The lunar photos taken by the astronauts on the moon used pre-digital cameras. IOW, they used emulsion film which did not have a wide exposure allowance. So visualize you're on the moon and it's bright as hell and you want to take photos of the ground or rocks, or whatever. Of course, you have to take the extreme brightness into consideration so your camera has to be adjusted appropriately. That means closing down the lens opening to the smallest possible. You'll also want to use a higher than normal shutter speed 'cause you're wearing unwieldly gloves and you're probably not able to hold the camera steady.
Since the bright surface is closer than those dim stars in the distance, that means that the camera is not going to be able to record stars as recording stars require a higher lens opening than for brightness. So let's say for the surface you need f16 or f22 or even smaller lens opening. For the stars you're going to need f2, f4 and you may not be able to use f8 which is considered normal on earth.
Dim objects such as faraway stars require a longer exposure than something bright. However, in some photos and videos (actually emulsion films converted to video) you can see the brighter stars but not a sky full. The astronauts probably saw a skyfull of stars but they just couldn't photograph them, nothing of interest to use the film on.
Originally posted by Robin Goodfellow
How can you continue to label this a UFO? Flying? Yet magnifying the image produces nothing resembling wings.