Optics of Monocular Compound Microscope #59
Optics of the case microscope:
A: Eyepiece: 12mm diameter, f=18mm
B: Field lens: 20mm diameter, f=38mm
C: Bull's-eye epi-illuminator: 23mm diameter, f=40mm
D: Objective (#11): 7mm diameter, f=7mm
In the assembled microscope body distances between lenses are: A-B=36mm; B-D=61mm
Objective (#11). Single biconvex lens is held in place with the brass insert (R).