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Originally Posted by Jairo
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Originally Posted by JayUtah
The coating on the aluminum casings will be more important than the properties of the aluminum itself. I don't know exactly what the coating is, but it has the look and feel of other coatings that are selective emitters and absorbers.
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I just read a text about the Hasselblad on the Lunar Surface Journal. It says the camera had a silver finish.
Some time ago, I asked why the camera used on Gemini 4 spacewalk were painted black. As that spacewalk lasted only some minutes, I think it really doesn't matter. But I read there were longer spacewalks in Gemini project that lasted several hours. I wonder if the cameras used there were still painted black. Do you know when they started to use the reflective ones?
(Thanks, Papageno. I'm reading the PDF now.) |
Probably after the realised that the black coatings on the Gemini cameras were rubbish after a few hours? Remember, this was the first time any of this was done, so changes and improvements would have been the normal process during the development of things for Apollo. That includes the little things like cameras and defogging the helmet visors. There was probably a whole team whose job it was just to work on cameras and photography.