Retired U.S. Air Force Master Sgt. Daniel Holmes, teaches metal etching

Retired U.S. Air Force Master Sgt. Daniel Holmes, teaches metal etching by having Airmen make a unit challenge coin from scrap metal at the Sagamore Hill Solar Observatory of the 2nd Weather Squadron, Det. 2, in Hamilton, Mass., Jun. 1, 2018. Holmes uses radios and mechanical and electronic folk art he creates to teach electronic and mechanical concepts to Airmen who must use and maintain 1960's era radio observatory equipment to monitor the sun for solar phenomenon which may interfere with electronics and communications used by the Department of Defense. (U.S. Air Force photo by J.M. Eddins Jr.)

PHOTO BY: J.M. EDDINS, JR.
VIRIN: 180724-F-LW859-9013.JPG
FULL SIZE: 3.97 MB
Additional Details

CAMERA

NIKON D810

LENS

60.0 mm f/2.8

APERTURE

45/10

SHUTTERSPEED

1/125

ISO

31

IMAGE IS PUBLIC DOMAIN

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