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Post by spirit on Sept 29, 2005 9:10:25 GMT -4
I for one do believe they went to the moon however, there's one certain item hoaxers bring up that does make me wonder, I hope some of you can debunk this: [glow=red,2,300] __________________________________________ With temperatures on the moon varying between -280° in the shade and +280° in the sun, those few people with the ability to wonder are wondering how how the Ectachrome [sic] film and Hasselblad cameras managed to bring back such clear pictures. According to Kodak scientists, at -280° the film would crack and breack when the camera tried to advance it a frame. And, at +280° the film emulsion would melt. Curious.  __________________________________________ [/glow] So, Get debunking please. I want this waved away by noon.  |
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Post by Nowhere Man on Sept 29, 2005 9:16:46 GMT -4
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Post by margamatix on Sept 29, 2005 9:17:12 GMT -4
Plus, you wouldn't be able to change the film or adjust the settings on a Hasselblad camera with those great big pressurised gauntlets on.
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Post by margamatix on Sept 29, 2005 9:24:19 GMT -4
Plus, Mission Control in Houston were telling the astronauts what light settings to use. Well, how would that work?
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Post by PhantomWolf on Sept 29, 2005 9:24:33 GMT -4
That's covered on Jay's page too. The magazines where just slid into the camera and a tab pulled to clear it for shooting. It was removed without the tab being returned, hence the sunstrike on the last images of each roll. The settings were locked onto rings with tabs on then, it was just a case of rotating the ring to the right position, and they had a -LOT- of practice at that prior to going. If you had actually bothered to read Jay's pages you'd know it.
Now, back to Bart. Please go and answer the question you were asked by at least three people.
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Post by PhantomWolf on Sept 29, 2005 9:27:12 GMT -4
Plus, Mission Control in Houston were telling the astronauts what light settings to use. Well, how would that work? They could see the area on the TV camera. |
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Post by gwiz on Sept 29, 2005 9:28:16 GMT -4
As mentioned on Bob B's page: www.braeunig.us/space/an additional factor was the use of high temperature film stock. |
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Post by margamatix on Sept 29, 2005 9:28:49 GMT -4
Now, back to Bart. Please go and answer the question you were asked by at least three people. I have done, but this is a different thread, on a totally different subject, so please try to keep your comments "on-topic". Spirit, unless you are as thick-skinned as I am , I suggest you do not venture to express even the slightest degree of scepticism as to the authenticity of Apollo on the ApolloHoax forum.... Welcome along, anyway. |
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Post by margamatix on Sept 29, 2005 9:29:52 GMT -4
They could see the area on the TV camera. Oh right. So the TV camera could judge the light levels? |
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Post by gwiz on Sept 29, 2005 9:33:01 GMT -4
Plus, Mission Control in Houston were telling the astronauts what light settings to use. Well, how would that work? As a first step, use a normal Earth sunny day setting for full sunlight, open up two or three stops for shade. In addition, use data from the Surveyor, Lunar Orbiter and Ranger to fine-tune the settings. |
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Post by gwiz on Sept 29, 2005 9:35:55 GMT -4
They could see the area on the TV camera. Oh right. So the TV camera could judge the light levels? That's what a TV camera does, measures the light level at each of an array of points that make up its field of view. |
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Al Johnston
"Cheer up!" they said, "It could be worse!" So I did, and it was.
Posts: 1,453
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Post by Al Johnston on Sept 29, 2005 9:36:02 GMT -4
They could see the area on the TV camera. Oh right. So the TV camera could judge the light levels? Well, Duh! TV cameras work by converting light to an electrical signal: more light, more signal  As mission control would know the TV camera settings required for correct exposure, it was fairly simple for them to convert that to an EV and camera settings for the astronauts. |
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Post by margamatix on Sept 29, 2005 9:56:31 GMT -4
As mission control would know the TV camera settings required for correct exposure, it was fairly simple for them to convert that to an EV and camera settings for the astronauts. But the Apollo 11 TV footage was appallingly poor and grainy. You couldn't possibly use it to judge light settings. Did no-one think of taking a light meter? |
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Post by PhantomWolf on Sept 29, 2005 10:04:32 GMT -4
Why, they only had 3 light settings. One for dark, one for partial shadow and one for full sunlight. They only had three focal lengths too, near, medium and infinity. All Missin control had to do was look at the area they were in and tell them, use the dark setting, or use the full light setting. What's so hard about that?
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Post by JayUtah on Sept 29, 2005 10:24:04 GMT -4
With temperatures on the moon varying between -280° in the shade and +280° in the sun...
Temperatures of what?
According to Kodak scientists...
Which scientists?
The Estar film base was developed for high-altitude and space reconnaissance photography. It is made of polyester, not celluloid, and is good to a very wide range of temperatures. Polyester is akin to plastic food wrap.
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