Nikon TE2000-E with C1 scanning head

This is part of the Backprojected Pinhole Calculator.


The sizes of the circular pinhole is shown by the microscope as a diameter d expressed in microns (µm): 30; 60; 100 and 150. Use this value in the form below.

The system magnification is 1 (it means the lack of fixed magnification beween the pinhole and the objective). However, there is an additional optional magnification of 1.5x (rarely used).

(Data provided by Dr. Juszczuk, as confirmed by Precoptic Co.)


Pinhole diameter (microns)
Objective magnification
Optional 1.5x magnification