There may be microscopes involved, bringing us ever closer to the heart of the matter; but even microbiology is objective, adding to knowledge by putting space between an object and its observer.
Germs can only be seen with the aid of a microscope.
Adjust the microscope's focus.
He was looking through a microscope.
"Do you mind my borrowing your microscope?" "No, not at all."
Do you know the difference between a microscope and a telescope?