Raid,
You tell little about what this camera weighs, what it is made of etc.
If it is of machined heavy steel it has, most likely, never been in a plane. Then it would be made of aluminium, magnesium - even plywood. Think of these Stratofortresses stressed to it's range limit. How could they 'afford' to carry a camera of cast iron construction? And why? If it is 'very heavy' it is far more likely that some X-ray application. Highly likely.
- No, I think Truman did right about dropping the A-bombs. Indeed, Truman is one of my favourite US presidents. What the current US government is doing in Afganistan, Iraq, Guantanamo, Somalia, Georgia - I could go on, is far worse.