RH200 AT and MARK II AT COLLIMATION
MANGIN, FRONT LENS AND TIP TILT
Thanks for purchasing our RH200, simply the best astrograph on the market!
As with any professional instrument, it needs a proper adjustment to be used.
In this manual you will learn how to adjust the:
-
Primary mirror (Mangin)
-
Front lens
-
Tip tilt
VERY IMPORTANT:
normally, only primary mirror collimation is required. If you are not satisfied with your
result, please contact Officina Stellare or your Dealer to get further assistance before making any further
adjustments. An improper adjustment of the front lens or tip tilt will cause a dramatic telescope’s
performance degradation vs. bad collimation.
PRIMARY MIRROR (MANGIN) COLLIMATION
The first step is to collimate the telescope, as you would do with any other scope using a mirror to collect
and focus light. The RH200 is equipped with 3 screws on the backplate to adjust collimation. This is
analogous to an SCT, Newtonian, or RC in that you use the 3 regulation screws to center the secondary
mirror shadow. Stars must be extra focal and always in the center. You should always make very small
adjustments of a 4
th
a turn or less.
Using the 3 regulations screw on the backplate
FROM
TO
Collimation
screw
Collimation
screw
Collimation
screw
