Celestron FirstScope 90EQ User manual

Use the three tightening screws located at the

bottom of each leg to secure the extended legs

in place.

To set up the tripod, spread the legs outward

until they are fully extended. Extend the center

portion of each of the three tripod legs down 6-

8".

Item #31132

Quick Set-up Guide

123

All three legs should be the same length to

provide a level platform for the telescope.

Locate the equatorial mount and place the

base of the mount through the hole in the

center of the tripod mounting platform.

Properly assembled, the accessory tray should

appear as pictured above.

From underneath the tripod mounting platform,

thread the mounting bolt with washer into the

threaded hole on the bottom of the equatorial

mount.

Thread the attached latitude adjustment screw

into the equatorial mount until the screw is

touching the inside of the mount and the

mount can no longer pivot up and down.

FirstScope 90EQ

Your FirstScope 90 EQ includes: optical tube w/

tube rings attached; tripod with center support

bracket; equatorial mount; two eyepieces;

StarPointer finderscope; 5 lb. counterweight;

counterweight bar; two slow motion cables; star

diagonal; accessory tray; documentation including

an owner’s manual, The Sky™ CD Software.

Item# 21085

Place the accessory tray on top of tripod's

center leg brace. Thread the tray into the

threaded hole in the center of the leg brace.

Questions or Problems with Set-up?

CONTACT:

Celestron Technical Support: 310.803.5955

Quick Set-up Guide [cont]

Locate the counterweight bar and

counterweight. Slide the counterweight half

way down the counterweight bar and tighten

the locking screw to secure in place.

Thread the threaded end of the counterweight

bar into the Dec axis of the equatorial mount.

The other cable attaches to the Declination

axis as pictured above.

Place the telescope tube on the equatorial

mount so that the tube is facing forward as

pictured above.

Slide the tube onto the mount as shown

above. Secure tube in place by tightening the

bolt as shown above (inset).

Locate the StarPointer finderscope. Remove

the knurled nuts on the threaded posts at the

focuser end of the telescope tube.

17 18

Loosen the set screw on the focuser so that it

does not obstruct the inner diameter of the

focuser. Remove the plastic cap covering the

end of the focuser.

19 20

Insert the chrome barrel of the 20mm eyepiece

into the focuser and tighten the set screw.

Remove the lens cap from the front of the

telescope. To observe, look through the

eyepiece as shown above.

Orient the Star Pointer so that the glass

window is facing towards the front of the tube.

Place Starpointer over the posts on the tube

and tighten it down with the knurled nuts.

Slide the chrome end of the slow motion

control cables onto equatorial mount gear

shaft.

Insert the diagonal into the focuser and tighten

the set screw.

For detailed usage information please consult your owner’s manual.

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