Table 2

Optical specifications of L1.

L1 (mm)
Aperture of O1 150
Focal length of O1 2250
Distance O1 – O2 1850
Focal length of O2 −745
Distance O2 – F 103
Distance F – O3 103
Focal length of O3 252
Distance O3 – camera 174
Focal length of the whole instrument 1350

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