A letter signed by the 1st Chief Master Sgt. of the Air Force Paul W. Airey and addressed in 1968 to U.S. Air Force Maj. Gen. I.G. Brown, the first Director of the Air National Guard, gives thanks to General Brown for the invitation and attendance at the Air Guard's NCO academy graduation on McGhee Tyson Air National Guard Base in East Tennessee. (U.S. Air National Guard photo/Master Sgt. Mike R. Smith)
CAMERA
NIKON D4
LENS
50.0 mm f/1.8
APERTURE
25/10
SHUTTERSPEED
1/125
ISO
400
No camera details available.
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