Senior Airman David McMillen, 28th Civil Engineer Squadron heating, ventilation and air conditioning technician, installs an exhaust stack into a new boiler system in the base Exchange at Ellsworth Air Force Base, S.D., Aug. 15, 2013. McMillen is responsible for installing and maintaining heating, ventilation and air conditioning systems on all base facilities. (U.S. Air Force photo by Airman 1st Class Zachary Hada/Released)
CAMERA
N/A
LENS
APERTURE
SHUTTERSPEED
ISO
No camera details available.
This photograph is considered public domain and has been cleared for release. If you would like to republish please give the photographer appropriate credit. Further, any commercial or non-commercial use of this photograph or any other DoD image must be made in compliance with guidance found at https://www.dimoc.mil/resources/limitations, which pertains to intellectual property restrictions (e.g., copyright and trademark, including the use of official emblems, insignia, names and slogans), warnings regarding use of images of identifiable personnel, appearance of endorsement, and related matters.