Adjusting A Dot Finder - Vixen SPHINX SXD Instruction Manual

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(3) Align the optical axis (field of view) of the finder scope with the optical axis (field of view)
of the telescope. Adjust the finder scope by loosening or tightening two of three
adjustment screws at a time, in turn, until the target is in the same position, in the center
of the crosshairs.
Each of the finder scopes is pre-adjusted to focus at infinity before shipment from the
factory but individual eyesight varies. As a result, it may not be focused at infinity for you.
The 7x50 finder scopes have a focuser ring that allows you to make adjustments if
necessary.
(1) Look through the finder scope and bring the crosshairs into focus by turning its
eyepiece section.
(2) Loosening the lock ring on the finder scope by turning it counterclockwise allows the
objective barrel (front end) to rotate freely. While looking through the finder scope as far
into the distance as possible, rotate the objective barrel to find the best focus. When the
finder scope is in focus, tighten the lock ring to secure the objective barrel.

Adjusting a Dot finder

(1) Choose a conspicuous target in the distance and place the target in the center of the
field of view of the telescope in accordance with procedures I to III in Basic Operation.
(2) Loosen the alignment clamp on the dot finder and move the upper portion of the dot
finder by holding its front end until the red dot is in the same position roughly as the target
in the telescope. Then, tighten the alignment clamp.
(3) Turn on the dot finder by turning the brightness adjusting dial. The intensity of the
brightness can be varied, turn the dial to set for proper brightness.
(4) Confirm that a red dot is just above the white guideline in the field of
view of the dot finder when you look behind the white guideline as
shown in the figure.