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Murray,
It seems that I have read that the KA-45 was used
as a panoramic camera as well as a framing camera. In the Panoramic mode the
film is moving as well as the slit of the shutter resulting in the high
shutter speeds. In the framing mode the film is not moving thus the shutter
speeds are slower as only the slit of the shutter moves.
I would assume that the film moves in the opposite
direction of the shutter slit during panoramic mode to produce the high speeds.
If memory serves, I believe the film is moving at 4 feet per second. I also seem
to recall that the leading edge of the shutter curtain is electronically
controlled to adjust the size of the slit and that the trailing curtain is
stationary relative to the leading edge.
Regards,
Dennis A.
P.S. I also have a KA-45 and find these very
interesting. Also:The Cuban missiles were first spotted by a U-2 flight but it
was the KA-45 that was used in follow-up missions.
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