Orion 9909 Installing the Optical Tube on the Base, Attaching the EZ Finder 80 & 90mm Models

Focus knob

Dovetail holder

Altitude tension knob

Dovetail bar (attached to telescope)

Dovetail holder

Thumbscrew

Figure 2: Detail of the Finder scope base

Figure 1d: Rear and side view of the TableTop Telescope (90mm model shown)

When unpacking the telescope it is suggested that you save the internal packaging. In the unlikely event the product needs to be returned the shipping materials can be re-used to ensure it arrives safely at its destination.

Installing the Optical Tube on the Base

Your new TableTop telescope arrives with the optical tube already attached to the base. If for any reason you wish to separate the components this is easily done. It may be helpful to loosen the Altitude Tension Adjustment knob and rotate the telescope so that the Telescope Securing Knob is in a more accessible position. While holding the optical tube with one hand loosen the Telescope Securing Knob until you can lift the optical tube out of the Dovetail Holder. The included dove- tail is compatible with most other Orion mounts and many other brands as well. The female threads on the bottom are ¼"-20 and will fit standard photo tripods.

To re-install the tube onto the base make sure the Dovetail Bar is flush with the edge of the Dovetail Holder. Place the Dovetail Bar into the Dovetail Holder so that one of the inden- tations in the bar aligns with the Telescope Securing Knob and tighten until secure. We suggest using the center inden- tation to achieve the best balance point. Depending on your accessories you may determine a different position best suits your needs.

Figure 3: The EZ Finder II securing thumbnuts

Attaching the EZ Finder II

80 & 90mm Models

Slide the base of the EZ Finder II bracket into the dovetail holder that is pre-installed on the optical tube. The EZ Finder

IIshould be oriented so that it appears as in Figure 1. Tighten the thumbscrew on the dovetail holder to secure the EZ Finder II in place. (See Figure 2.)

100mm Model

Remove the two metal thumbnuts from the optical tube. Place the bracket of the Red-dot finder on the tube so that the holes in the bracket slide over the two threaded posts on the tube. The EZ Finder should be oriented so that it appears as in Figure 1. Thread the thumbscrews back onto the posts to secure the Red-dot finder in place. (See Figure 3.)

Operating the EZ Finder II Reflex Sight

The EZ Finder II reflex sight makes pointing your telescope almost as easy as pointing your finger! It’s a non-magnifying aiming device that superimposes a dot on the sky, showing exactly where the telescope is pointed. The EZ Finder II works by projecting a tiny red dot produced by a light emitting diode (LED), not a laser beam, onto a lens mounted in the front of the unit. When you look through the reflex sight, the red dot will appear to float in space.

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