Eyepiece Adjustment - Pentax ETH-302 Instruction Manual

4.5 Eyepiece adjustment

After [4.4 Centering with the optical plummet] completed, focus the
telescope eyepiece on the telescope reticule.
Remove the telescope lens cap.
1
Point the telescope at a bright object.
2
Rotate the eyepiece completely counterclockwise.
3
Look through the eyepiece, and rotate the eyepiece clockwise until the
4
reticule appears at its maximum sharpness.
Reticule pattern
Horizontal graduation
(double)
At procedure
fatigue. Parallax causes problems with object sighting.
(Refer to [4.6 Object sighting])
32
, keep your eye relaxed to prevent parallax and eye
4
Vertical graduation
(single)
Optical axis
Vertical graduation
(double)