this was taken in 1967 with Pentax Spotmatic and tri-x, developed in whatever was in the brown bottle. I have no idea what the shutter speed or aperture was. I was out in my jeep doing MedCap on civilians when I inadvertently (believe me) ended up in the very middle of a helicopter assault and a fierce firefight. Only dared to take this one and then hid my head until tanks and more troops came up and the area was secured. Negative long gone, just this one battered print remains.