posted on Sep, 26 2012 @ 02:07 PM
reply to post by lokomotiv23
I haven't seen anybody mention this so I will, because you may be overlooking an important point.
It's the film that's sensitive to radiation, not the camera. I imagine Hasselblads would still work in very high radiation, much higher than on the
moon, so I'm not sure they really needed any shielding for the camera itself.
Films came in different sensitivities, referred to as ASA number, now I think it's called ISO number. ASA100 was typical daylight film and not
sensitive to radiation, while ASA400 film was for low light conditions and was sensitive to radiation...in fact airport scanners used to carry a
warning that the X-ray scanners were safe for "normal film" presumably like ASA100, but they recommended not putting "high speed film" though the
X-ray machines. They didn't specify the number but films as high as ASA1600 or even 3200 were available which could be very sensitive to radiation.
The surface of the moon was so bright that I'm sure low speed film was used, though I can't tell you the ASA number, but you might find that in your
research. My guess is ASA 100 or less, and this suggests the daylight shots were probably made with ASA 80 film, which wouldn't be sensitive to
radiation, so I'm not sure any modification to the Hasselblad was needed for ASA 80 film use on the moon, but I would guess not:
edit on 26-9-2012 by Arbitrageur because: clarification