Staff Sgt. Christopher Keller, 436th Security Forces Squadron combat arms instructor, counts bullet holes on a target to determine a student’s combat arms qualification score Dec. 17, 2021, at Dover Air Force Base, Delaware. Students who fail qualification are offered additional instruction and another attempt to qualify. (U.S. Air Force photo by Mauricio Campino)
CAMERA
NIKON Z 6
LENS
24.0-70.0 mm f/2.8
APERTURE
56/10
SHUTTERSPEED
1/100
ISO
3200
No camera details available.
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