Magnification - Magnification and Micron Bar

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.