Carl Zeiss S-planar lens pt.2: resolution explained

In this video we take a closer look at the maximum imaging resolution of the Carl Zeiss S-Planar lens. Assuming it satisfies the Rayleigh limit, the maximum resolution of this lens should be around 723nm or 0.7um according to theory. Measurements show that the resolution is actually somewhere between 0.5 and 1 um, and definitely below 1 um. This would mean that it probably still operates at it's maximum theoretical value. The software used to evaluate the intensities in the images is ImageJ (Freeware). It can be downloaded at https://imagej.nih.gov/ij/download.html .

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