C90mm Mak - #52265
Congratulations on your purchase of a Celestron spotting scope! Whether your interest lies in nature or astronomy this
spotting scope offers the finest in optical quality guaranteed to give you years of viewing pleasure.
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Your C90 Mak has an internal flip mirror that can divert light either through the 90
˚
eyepiece barrel at the top of the rear cell or directly
through the erect image diagonal (for daytime use) at the rear of the spotting scope. Make sure that the flip mirror is in the "down" position
for viewing with an eyepiece at 90
˚
and in the "up" position for viewing through the diagonal (see Figure 1-2).
To install the eyepiece directly into the 90
˚
eyepiece barrel (for astronomical use):
1. Loosen the thumbscrew on the eyepiece barrel so it does not obstruct the inner diameter of the barrel.
2. Slide the chrome portion of the eyepiece into the eyepiece barrel.
3.
Tighten the thumbscrew to hold the eyepiece in place.
4.
To remove the eyepiece, loosen the thumbscrew on the eyepiece barrel and slide the eyepiece out.
Figure 1-1
Flip Down
Lens Cap
Erect Image
Finderscope
90
°°°°
Eyepiece
Barrel
Erect Image
Diagonal
Eyepiece
Focus Knob
Tripod Adapter
Mount
