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Assembly

1.  With all items removed from the case (J), find the tripod 

(A) and spread the legs apart. Don’t worry about extending 
the tripod legs yet; you will do that later. 

2.  Install the accessory tray (B) by aligning the center hole 

with the center of the tripod brace, as shown in 

Figure 

2a

.

3.  Then gently press the tray downward and rotate it while 

insuring that each of the three tray locking tabs seats 
underneath its respective brace tab, snapping into place 

(Figure 2b)

. The tray should then appear as in 

Figure 

3

4.  Now you will attach the optical tube (C) to the altazimuth 

pan head. First, turn the mounting bar lock knob 
counterclockwise to back out the bolt to make room in the 
saddle for the telescope’s dovetail mounting bar 

(Figure 

4)

. Then slide the telescope’s dovetail mounting bar into 

the saddle and retighten the lock knob to secure the bar in 
place. 

5.  Next, you will install the red dot finder scope (D) onto the 

optical tube. Slide the finder scope bracket into the finder 
scope base, as shown in 

Figure 5

6.  Insert the 90-degree correct-image diagonal (G) into 

the focuser drawtube and tighten it with the thumbscrew 

(Figure 6)

.  

7.  Now insert an eyepiece into the diagonal and secure it 

with the thumbscrew 

(Figure 7)

. We recommend starting 

with the 25mm eyepiece (E). 

Assembly is now complete and the telescope should appear as 
in 

Figure 8

Aligning and Using the Red 

Dot Finder Scope 

The included red dot finder scope 

(Figure 9)

 makes pointing 

your telescope almost as easy as pointing your finger! It’s a non-
magnifying aiming device that superimposes a tiny LED red dot 
on the sky, showing exactly where the telescope is pointed. It 
permits easy object targeting prior to observation in the higher-
power main telescope. Before you can use the red dot finder 
scope, you must remove the small plastic tab sticking out from 
the battery compartment 

(see Figure 9)

. Doing so will allow 

the pre-installed 3V CR-2032 battery to power the red LED 
when the device is turned on. The tab can then be discarded. 

To use the red dot finder scope properly, it must be aligned with 
the main telescope. This is easiest to do during daylight hours, 
before observing at night. Follow this procedure: 

1.  First, remove the dust cover (K) from the front of the 

telescope. 

2.  With the 25mm eyepiece and 90-degree diagonal already 

installed from the steps above, point the telescope at 
a well-defined land target (e.g., the top of a telephone 
pole) that’s at least a quarter mile away. When pointing 
the telescope, be sure to loosen the azimuth lock knob 
so the telescope can rotate left and right, and twist the 
pan handle counterclockwise a bit to free up movement in 
altitude.

3.  Center the target in the telescope eyepiece.
4.  Turn on the red dot finder scope by sliding the power 

switch to ON (refer to 

Figure 9

). The “1” position provides 

dim illumination while the “2” position provides brighter 

Figure 2.

 Attach the 

accessory tray to the 

tripod brace by 

a)

 

registering the tray’s 

center hole over the 

center of the brace, then 

b)

 twisting they tray 

while so that each of the 

three tray locking tabs 

seats underneath its 

respective brace tab.

Figure 3. 

The tray is now locked in place. 

Brace tab

Locking tab

a

b

3

Summary of Contents for StarBlast 10283

Page 1: ...ompleto visite Orion Telescopes eu y escriba el n mero de art culo del producto en la barra de b squeda A continuaci n haga clic en el enlace al manual del producto de la p gina de detalle del product...

Page 2: ...e sure all the items listed below and shown in Figure 1 are present Save the shipping box and packaging material In the unlikely event that you need to return the product you must use the original pac...

Page 3: ...your finger It s a non magnifying aiming device that superimposes a tiny LED red dot on the sky showing exactly where the telescope is pointed It permits easy object targeting prior to observation in...

Page 4: ...eg collars or strip the threads of the bolt or its receptacle Using the Pan Head The StarBlast 102mm refractor features a standard altazimuth pan head mount which permits motion along two perpendicu l...

Page 5: ...25mm eyepiece then try switching to the 10mm eyepiece later if you want to boost the magnification Focusing the Telescope To focus the telescope turn the focus wheels Figure 8 for ward or back until y...

Page 6: ...absorbed by the Earth during the day has radiated off into space Especially important for observing faint objects is good trans parency air free of moisture smoke and dust All tend to scat ter light w...

Page 7: ...a rated by a protective divider to keep them from contacting each other The tripod accessory tray fits in a pocket inside the case The case is equipped with both hand straps and a shoulder strap for c...

Page 8: ...ranted instrument that proves to be defective provided it is returned postage paid Proof of purchase such as a copy of the original receipt is required This warranty is only valid in the country of pu...

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