Staff Sgt. Louis Lira, 627th Security Forces Squadron combat arms instructor, watches a student adjust the sights on their M-4 rifle during a qualification course at Joint Base Lewis-McChord, Wash., Jan. 23, 2020. The students spent the first half of the class learning the fundamentals for firing the rifle, and the latter half qualifying on the weapon at a range. (U.S. Air Force photo by Senior Airman Tryphena Mayhugh)
CAMERA
NIKON D4S
LENS
24.0-70.0 mm f/2.8
APERTURE
63/10
SHUTTERSPEED
1/80
ISO
200
No camera details available.
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