Retired U.S. Air Force Master Sgt. Daniel Holmes files a piece of wood

Retired U.S. Air Force Master Sgt. Daniel Holmes, shown filing a piece of wood while one of his beloved cats watches him in a photo at his home in Lowell, Mass., Jun. 1, 2018. Holmes teaches Airmen various electronic and mechanical skills that they do not learn in tech school in order for them to maintain 1960's era technology used at the Sagamore Hill Solar Observatory of the 2nd Weather Squadron, Det. 2, in Hamilton, Mass. (U.S. Air Force photo by J.M. Eddins Jr.)

PHOTO BY: J.M. EDDINS, JR.
VIRIN: 180724-F-LW859-9003.JPG
FULL SIZE: 1.92 MB
Additional Details

CAMERA

NIKON D4

LENS

60.0 mm f/2.8

APERTURE

35/10

SHUTTERSPEED

1/100

ISO

1600

IMAGE IS PUBLIC DOMAIN

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