Senior Airman David Halbur, 434th Civil Engineer Squadron engineer assistant, performs an extended cross-knee crunch during a new component of the Air Force physical fitness assessment at Grissom Air Reserve Base, Ind., March 13, 2021. Airmen volunteered to test new components to the Air Force fitness assessment and give their feedback as part of a pilot program here. (U.S. Air Force photo by Staff Sgt. Michael Hunsaker)
CAMERA
NIKON D4S
LENS
17.0-55.0 mm f/2.8
APERTURE
4
SHUTTERSPEED
1/200
ISO
1600
No camera details available.
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