Pentax ETH-310, ETH-302, ETH-305 instruction manual Inclination of reticule graduations

Models: ETH-310 ETH-302 ETH-305

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6.4 Inclination of reticule graduations

Inspection

1Set an object point A on the line of sight through the telescope.

2Move point A to the edge of the field of view by adjusting the telescope tangent screw (point A’).

3No adjustment is necessary if point A moves along the vertical line of the reticule. If the point A does not move along the vertical line of the reticule, it needs adjustment - Consult with your dealer.

Vertical line

Line of sight axis

 

A'

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Page 40
Image 40
Pentax ETH-310, ETH-302, ETH-305 instruction manual Inclination of reticule graduations