Newcon Optik 7x50 AN Binoculars with Compass and Reticle - Manual (Page 8)

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3. DESIGN AND APPEARANCE
3.1 Optical design
Optical design of the binoculars is presented on Fig. 1.
1 – objective lens 2 – erective prisms
3 – reticle lens 4 – eyepiece
AN 7x50MC contains an additional compass projector
that brings light to illuminate the compass scale.
Fig. 1