Pentax 77420 - Page 29

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13. [Adjustment] Viewfinder focus and parallax.
[Requires equipment] 50mm lens, collimator, focus master lens.
[Preparation]
1. Adjust the diopter by the diopter adjustment lever.
2. Set the AF mode switch to MF position. (Upper position)
13-1. Parallax
[CAUTION] Confirm that the pentaprism must be installed securely.
① [Confirmation]Confirm there is neither gap nor an inclination at upper and lower, right and left position.
Standard: Right/Left Less than 0.5°
Upside down Less than 0.5°
13-2. Viewfinder focus
① [Confirmation] Confirm a viewfinder focus.
*One scale for focus master lens is 0.03mm.
 Standard: 0±0.07 mm
② [Adjustment] Exchanges for M22 of other thickness.
 The tolerance lever at the time of adjustment is 0±0.04 mm
.
M22-00A
-00B
-00C
-00D
-00E
-00F
-00G
-00H
-00I
-01J
t=0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
0.55
0.10
14. O100
①Apply small amount of Daia bond (black) as shown in figure.
②M2 prism --- Make sure that there is no dust on M2.
③O100, 27480-A640
④TY-CNL-F1.7x3.0
⑤TY-CNL-F1.7x4.5
--- Temporary tightens screws while holding O100 plate.
[Note of Disassembly]
1. Remove the screw lock which is stick to the screw.
2. Unscrew (x2) while pressing the plate of 0-O100.
3. If M2 does not replace, you do not necessary to
disassembly.
①

②

③

④

27480-A640
⑤
