Electron Microscopy Sciences Revolutionary 1500 Square, Cu

Electron Microscopy Sciences Very fine mesh grids have up to 2,000 lines/inch. There is an increasing need in tem for support films, routinely carbon, as thin as 1.5 - 2.0 nm. The pitch (the distance from the center of one bar to the center of the next bar) dimension in all grids remains constant, allowing use as a lower magnification calibration aid. Apart from one side being shiny, the other matt, there is a large asymmetrical mark in the rim which gives the identification of which side the specimen is on. Grids are 3.05 mm overall diameter; 2.05 mm mesh area diameter. - EMS