Used as a reference system to allow researchers to locate and revisit specific regions of a sample during scanning electron microscopy analysis, index and finder SEM grids are indispensable tools for sample identification, localization, and navigation under the microscope. At EMS, we also carry asbestos analysis grids, which are specifically designed to hold and support asbestos during image analysis. While both index and finder SEM grids both serve as reference systems for SEM analysis, each comes with its own distinctive characteristics and purposes. 

Generally speaking, index grids and finder grids are terms that can be used interchangeably, as the two are largely the same. Both can be used for creating accurate and repeatable sample localization, as well as aiding in visual recognition and the communication of areas of interest. Index grids and finder grids can be organized in a systematic array of identifiable positions, arranged in rows and columns so that each position on the grid is assigned a unique alphanumeric or numeric identifier. They can also be more focused on visual navigation, composed of lines or markings that help create specific regions or sectors. 

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