Matt Cook, top, Brazilian Jiu-Jitsu instructor, demonstrates a modified arm bar with U.S. Airman 1st Class Dylan Williams, 436th Maintenance Squadron Isochronal Dock crew chief, during an open-mat combatives class on Dover Air Force Base, Delaware, Jan. 14, 2025. The modified arm bar is used to put an attacker in a vulnerable state while remaining in a maneuverable position in the event of multiple threats. (U.S. Air Force photo by Senior Airman Trenten Walters)
CAMERA
NIKON Z 9
LENS
NIKKOR Z 24-120mm f/4 S
APERTURE
56/10
SHUTTERSPEED
1/100
ISO
1600
No camera details available.
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