For a definition of ISO please see Film Speed.
A total solar eclipse occurred yesterday in Austin, TX, and it was visible across a large swath of the United States.
Butterweed among colored rocks photographed along the grapevine hills trail in Big Bend National Park in the spring of 2023.
Dew on a Big Bend Bluebonnet photographed early in the morning near Santa Elena Canyon in Big Bend NP in the Spring of 2023.