R-4106.A

ADJUSTMENT

1. Depression Prism Unit

 

 

2)If, in this case, such a center displacement cannot be corrected by moving the lens chamber

G), make adjustment of prism 'B,as below:

a)For lateral adjustment, place a piece of silver foil (0.1 mm thick) undemeath, as shown in

Fig. 31, to cause a movement corresponding to 5 scale Unes.

b)For vertical adjustment, move prism @ along the wall of prism mount (D, as shown in Fig. 31.

Fig. 31

(F·tube)

1)Moving lens chamber ® (with @) and ·'.§inside), make the displacement within a range of 2 scale Unes in the Kellner eyepiece.

2)If the center displacement cannot be corrected by moving chamber ®· make adjustment of prism @ ,as below:

P1ace a piece of silver foil (0.1 mm thick) underneath, as shown in Fig. 32, to cause a movement

,,-·

corresponding to 5 lines.

Silvcr foil

Eycpicce saile

A

B

The center displacement direction of the test plate by a piece of illver foil (A, B)

Fig. 32

-41-

Page 111
Image 111
Nikon 50i and E100 manual Depression Prism Unit, Adjustment