Vixen R130Sf - Manual (Page 6)

COLLIMATION
The optics of the telescope are aligned correctly at Vixen’s factory before shipment. It is rare that
telescopes go out of alignment, unless its tube is knocked strongly. Follow procedure below to
determine if the telescope is out of collimation.
Examine the Collimation
Select a second‐ or third‐magnitude star and place it the center of the telescope’s field of view by using
a moderately high power eyepiece. Focus the star precisely. And then defocus slightly and you will look
for striped patterns that surround the star. If the striped pattern can be seen as a concentric image,
your telescope is properly aligned
Collimated Properly Mis‐Collimated
In Focus Out of Focus In Focus Out of Focus
MrStarGuy, Inc. 1010 Calle Cordillera, San Clemente, CA 92673
(949) 429-6363 www.vixenoptics.com
MrStarGuy,
Inc.