Newcon Optik AN 8x30M22, Operation Manual

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Fig. 1). Due to the objective lens, the image at this point
is turned upside down. However, as the image passes
through the prism system, (known as the erective prisms)
(2, Fig. 1) it becomes right side up (erect) and changed
from right to left, to left to right. After the prisms the
image rays pass through the reticle lens (3, Fig. 1) and
then through the eyepiece (4, Fig. 1).
3.2 Reticle
Reticle lens (3, Fig. 1) contains vertical and horizontal
lines that constitute an M22 reticle. Though reticle scales
may form a cross or upside down T (Fig. 2, B) they share
the same scale division value: each small division on both
vertical and horizontal lines is 5 mils and each big
division is 10 mils (360º equals 6400 mils).
Reticle may have an addition scale composed of two lines
(B, Fig.2).
Fig. 2