Celestron Feathertouch SCT Microfocuser User manual

Installation Instructions – Celestron 11” Telescopes

Important:

The telescope optical tube must be positioned horizontally before

removing the original focus assembly. If the telescope is not horizontal the primary

mirror could move during the installation.

Required Tools: Phillips Screwdriver

1/16” Hex-Head Wrench (Not required for NexStar 11 GPS)

Step 1

Remove Focus Knob

NexStar 11 GPS telescopes have a rubber knob which can be pulled off. Older 11"

telescopes will have a metal focus knob which must be removed using a 1/16” hex-head

wrench to loosen a small set screw. Once the knob is removed you will see the brass

focus shaft as shown below.

Step 2

Move Primary Mirror Back

Turn the brass focus shaft clockwise to bring the mirror back and expose the Phillips-

head screw at the end of the threaded focus rod.

Step 3

Remove Set Screw

Use screwdriver to remove the small Phillips screw from the end of the threaded focus

rod.

Step 4

Remove Focus Assembly Cover Plate

Use screwdriver to remove three screws from the focus assembly cover plate (the three

screws around the outside of the focus shaft). Remove the cover plate. Hang on to the

three Phillips screws as they will be used to attach the SCT MicroFocuser.

Step 5

Remove Focus Bearing Assembly

Turn the brass focus shaft counterclockwise to remove it from the threaded focus rod.

This will take quite a few turns. Once the bearing assembly is removed, only the

threaded focus rod (which pushes and pulls on the mirror cell to focus the telescope) will

be left sticking out of the telescope as below.

Step 6

Thread on SCT MicroFocuser

Begin threading the SCT MicroFocuser onto the threaded focus rod.

When there is only about 1/4" left to go, simply push the focuser the rest of the way in.

This will take up some of the change in focus from when you removed the original

focuser, making it quicker to return to focus the first time you use your telescope after the

SCT MicroFocuser installation.

Step 7

Attach the SCT Micro Focuser

Use the three original Phillips screws to attach the SCT MicroFocuser to the telescope.

You are now ready to head out under the stars!

Table of contents

Other Celestron Accessories manuals

Celestron

Celestron FireCel Plus User manual

Celestron

Celestron SMART DEWHEATER AND CONTROLLER 2X User manual

Celestron

Celestron ELEMENTS THERMOTORCH 5 User manual

Celestron

Celestron AllView Mount User manual

Celestron

Celestron STARPOINTER PRO User manual

Celestron

Celestron FOCUS 94155-A User manual

Celestron

Celestron StarSense AutoAlign User manual

Celestron

Celestron 94306 User manual

Celestron

Celestron NexImage User manual

Celestron

Celestron Thermocharge 10 48024 User manual

Celestron

Celestron 93571 User manual

Celestron

Celestron POWER CONTROLLER 4X User manual

Celestron

Celestron StarPointer User manual

Celestron

Celestron 94020 User manual

Celestron

Celestron 94155 User manual

Celestron

Celestron CGE1100 Manual

Celestron

Celestron C10-NGT User manual

Celestron

Celestron 94182 User manual

Celestron

Celestron StarSense 94008 User manual

Celestron

Celestron WEDGE 93665 User manual

Celestron

Celestron EclipSmart User manual

Celestron

Celestron 94306 User manual

Celestron

Celestron Mossy Oak Gamekeeper FireCel+ 93549 User manual

Celestron

Celestron 94175 User manual

Popular Accessories manuals by other brands

Hillco

Hillco 2810 Operator's manual

Siemens

Siemens QSA2700D Basic documentation

Contours

Contours ZY024 manual

Saivod

Saivod VS621 manual

Virtuox

Virtuox VirtuCLEAN 2.0 user manual

SCE

SCE ENVIRO-THERM SCE-TE170B24VSS user manual

Z-Wave

Z-Wave HSD-200Z user manual

turck

turck FMX-IM-2UPLI63FX quick start guide

Decagon Devices

Decagon Devices 10HS manual

UPPAbaby

UPPAbaby Cup Holder user manual

Elko

Elko SmartSensor Leakage Wireless manual

Grizzly

Grizzly H8371 instructions

Panasonic

Panasonic HG-T Series user manual

IFM Electronic

IFM Electronic Efector 250 Series Brief instructions

DigiDesign

DigiDesign 888/24 I/O installation guide

PROZIS

PROZIS QUAY user manual

patagonia

patagonia PSI Vest user manual

SFC Energy

SFC Energy EFOY GO! manual