Magnification and Micron Bar
Unfortunately, magnification could be a misleading parameter. It depends on a final size of a printed picture, and therefore varies with variation in picture size. Editors of Journals and Magazines routinely resize a figure to fit the page, making any magnification number provided in the figure legend incorrect. Scale Bar (or Micron Bar) is a bar of known length displayed on a picture. The bar can be used for measurements on a picture. When a picture is resized a bar is resized also. If a picture has a bar, the right magnification can be easily calculated. Ideally, all pictures intending for publication/presentation should be supplied with a scale bar; magnification is optional.
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Famous quotes containing the word bar:
“The bar ... is an exercise in solitude. Above all else, it must be quiet, dark, very comfortable—and, contrary to modern mores, no music of any kind, no matter how faint. In sum, there should be no more than a dozen tables, and a clientele that doesn’t like to talk.”
—Luis Buñuel (1900–1983)