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Meade Zero Image-Shift Operating Instructions page 2

Zero image-shift microfocuser for use with schmidt-cassegrain and 7” maksutov-cassegrain telescopes

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adjusted, performance will degrade and damage will
result. Damage due to improper adjustments not
authorized by the factory will not be covered under
warranty.
Note: If you wish to mount a camera directly to the
microfocuser, you need to attach an optional T-
Adapter to the microfocuser. For more information
about Meade optional accessories, see the Meade
General Catalog or contact your local Meade
dealer.
To Focus Using the Microfocuser
1.
Perform this step of the procedure during the daytime,
without the eyepiece assembly (eyepiece, diagonal, etc.)
attached to the microfocuser. Press the In or Out keys (1,
Fig. 6) of the handbox to change the focus. Observe the
microfocuser drawtube as it travels in and out. When the
drawtube reaches the furthest extension of its travel,
listen for a change in the pitch of the motor. Notice that
the drawtube's maximum extension is about a half-inch
out from the microfocuser. Set the drawtube so that it
extends about a quarter-inch (about halfway).
2.
When you begin your viewing session, attach your
telescope's eyepiece assembly.
3.
Point the telescope at a bright star.
Press the In/Out keys (1, Fig. 6) to change the focus.
4.
5.
Press the Speed key (2, Fig. 6) to change the speed:
Each press of the Speed key decreases the focus speed
until the lowest speed is reached. The next press then
returns the speed to the highest speed again. Four
speeds are available: fast, medium, slow and fine.
6.
You may need to repeat steps 2 through 5 when you
change eyepieces.
Use with Meade De-Rotater
When using a Meade de-rotater, it is important to attach the
microfocuser so that it is backed off slightly from the de-
rotater. If the microfocuser is flush against the de-rotater, the
assembly will not work properly. This is true also with other
accessories that may attach flush against the de-rotater
housing.
To Attach the Microfocuser to the De-rotater:
Refer to Fig. 1. Perform this assembly on a flat surface (such
as a desk or a table) before you attach the de-rotater and
microfocuser to the telescope.
1. With the de-rotater on a flat surface, thread on the adapter
ring (B, Fig. 1) until it just touches the housing; then back
off the adapter ring (i.e., turn it counter-clockwise) one full
revolution as shown in Fig. 7.
2. Place the microfocuser over the ring with the "hump" of the
microfocuser in the 12:00 position as shown in Fig. 8.
3. Using the provided hex key, tighten to a firm feel one of the
three microfocuser set screws (K, Fig. 1) against the
adapter ring as shown in Fig. 9. Take care not to tighten or
loosen the adapter ring as you position and tighten the
microfocuser in place.
4. Tighten to a firm feel the other two microfocuser set screws.
5. Attach the de-rotater to the rear cell of the telescope.
Fig. 4: Microfocuser and
1.25" diagonal prism with
eyepiece completely
assembled. Microfocuser
shown attached to a Meade
LX200 telescope.
Fig. 6: Microfocuser
handbox:
(1) In/Out keys;
(2) Speed key;
(3) Handbox port (on top)
12:00 position
Fig. 8: Place the
microfocuser over the
adapter ring. Notice the
orientation of the
microfocuser.
If you have a question concerning use of the Meade #1209
Zero Image-Shift Microfocuser, call the Meade Instruments
Customer Service Department at (949) 451-1450. Customer
Service hours are 7:00 AM to 6:00 PM, Pacific Time, Monday
through Friday.
Fig. 5: Microfocuser ball
bearings.
Fig. 7: Back off the adapter
ring one full revolution.
Fig. 9: Tighten the three
microfocuser set screws to a
firm feel.
Part no. 14-7280-00
Ver. 6-04

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This manual is also suitable for:

1209