magnification calibration specime
Two-in-one; this standard for calibration provides a double-check of the accuracy of magnification calibration. It is particularly useful at higher magnification. The latex sphere size is 0.261 µm and the carbon grating replica with Au/Pd shadowing is 2160 lines/mm. Supplied on a G400, 400 square mesh copper Gilder grid.
603 - Diffraction Grating Replica and Latex Calibration Standard, each