The good thing about digital cameras and digital backs is that they allow you to change ISO in the middle of shooting. You can't do that with film.

The age of the Panda intrusion has been dated precisely by Rb-Sr determinations on kimberlitic phlogopite (n = 7), yielding a robust isochron of 53.3±0.6 Ma (Early Eocene, Ypresian).

a detuned instrument or device

Either header sheets or dark-mark coding directly on the answer document itself provides the input to the computer memory for pre-codable information such as test, level, or form, while response spaces to be marked by the user take care of all kinds of unique identifying information, such as community, school, grade, name, sex, and so forth. Preslugging on a line printer is used for a student identification code.