"Landscapes exist in the material world yet soar in the realms of the spirit..." Tsung Ping, 5th Century China
Bryan, it is clear. 8kg with flange, 5 kg without flange. Weight it can be even lowered to some 4kg.
Itek KA-80/A used in A-12, Lockheed U-2 and SR-71[1] reconnaissance aircraft. It is of the Optical Bar Camera type.
Also used as Apollo Panoramic Camera Itek KA-80A derivative with 24" focal length used in Apollo program to map parts of the moon. Used on Apollo 15-17.
Lens 24-inch (610-mm), f/3.5, Petzval
Resolution 135 lines per millimetre, over 80 percent of the detail, no detail less than 108 lines per millimetre at low contrast
Field of view along track 10 degrees 46 minutes (13.5 miles at 69-mile altitude)
Field of view, crosstrack 108 degrees (211 miles at 69-mile altitude)
Overlap Consecutive forward frames and consecutive aft frames overlap 10 percent; stereo pairs overlap 100 percent.
Shutter type Scanning slit
Slit width 0.015 to 0.300 inch (0.381 to 7.62 mm)
Film type 3400, 3414, SO-230, or any other thin base material.
Film width 5 inches (127 mm)
Film thickness 0.003 inch (0.076 mm) or less.
Format 45.24 by 4.5 inches (1,149 x 114.3 mm)
Exposure control Automatic with variable slit
V/H Range 0.010 to 0.019 radians per second
Operating modes Monographic or 25° convergent stereo at autocyle of 4.7 to 8.0 seconds per cycle.
Film Length 6,500 feet (2,005 metres)
Exposures 1,650 total
Weight (camera with film) 336 pounds
Weight (Take-up cassette with film) 73 pounds
Power Requirements 115VAC, 27.5VDC, 234 watts average, 340 watts peak
https://history.nasa.gov/afj/simbayc...an-camera.html
8kg is still 17 pounds, a far cry from your original 7lb statement. Do you insist on speculating on everything?
Mine didn't have a "flange," it had a whole massive housing. I would not be surprised if the lens was 17 pounds but then the housing added another 10-15.
With resolution and coverage like that I would use a bigger film than 4x5.
Have you considered a heavyweight 8x10 tailboard camera with a Packard or unusually large air-compound shutter?
I just re-read A Man on the Moon. That camera was one of the main duties of the astronaut who stayed aboard the command module. I don't remember which flight it was, but one of them had technical issues that shut the camera down. If I recall correctly, he was then limited to using other cameras, including a handheld Hasselblad. They were especially interested in getting photos of future landing sites.
That's the alternate universe I was talking about earlier.
Garrett
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