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Looking at or near the 

Sun

will cause 

irreversable

damage to your eye. Do not point

this telescope at or near the Sun. Do not look through the telescope as it is moving.

OPTIONAL ACCESSORIES

A wide assortment of professional Meade accessories is available for the LightBridge

telescope models. The premium quality of these accessories is well-suited to the 

quality of the instrument itself. 

Consult the Meade General Catalog or

meade.com for complete details on these and other accessories.

Meade Series 4000™ Eyepieces: 

You want to select an eyepiece that not only

gives you the magnification that you want, but also give you the eye relief you need.

Other qualities to look for with eyepieces are the apparent field size, which is how

large an object looks in an eyepiece, and coatings, which increase contrast in an

image. Meade’s series series 5000 eyepieces incorporate all the features that you’d

want in a set of high quality eyepieces.  It is recommended that observers have two

or three low and high power eyepiece on hand such as a 9mm ,12mm, and 40mm, in

addition to the supplied 26mm. And remove the 1.25 eyepiece holder and your

LightBridge is ready to use 2" diameter eyepieces.

Series 5000™ TeleXtenders: 

An advanced 4-element design doubles, triples or

quadruples magnification while flattening the field of view, and the fully coated 

lenses deliver the maximum light transmission, the highest contrast and an image

free of color fringing. Maintains a comfortable eye relief of longer focal length 

eyepieces, while increasing magnification.

Series 4000™ 8 - 24mm Zoom Eyepiece:

The internal zoom optics of this eye-

piece move on smooth, precisely machined surfaces which maintain optical collima-

tion at all zoom settings. A scale graduated in 1mm units indicates the zoom focal

length in operation. An excellent addition to any eyepiece set.

Series 4000™ Photo-Visual Color Filters:

Color filters significantly enhance visu-

al and photographic image contrast of the Moon and planets. Each filter threads into

the barrel of any Meade 1.25" eyepiece, and into the barrels of virtually all other eye-

piece brands as well. Meade filters are available in 12 colors for lunar and planetary 

applications, and in Neutral Density as a lunar glare-reduction filter. 

Series 4000™ Nebular Filters:

A modern boon to the city-dwelling deep-space

observer, the interference nebular filter effectively cancels out the effects of most

urban light pollution, while leaving the light of deep-space nebular emissions 

virtually unattenuated. Meade

Series 4000 Nebular Filters

utilize the very latest in

coating technology. 

Meade Laser Collimator: 

The Meade Laser Collimator is an easy to use collima-

tion device. Poor collimation can cause planetary detail to be fuzzy and star images

to appear elongated or irregular. The Laser Collimator uses a red laser to accurate-

ly align the mirrors in your LightBridge Truss Tube Dobsonian telescope. Once 

accurately aligned, stars will appear as sharp pinpoints, planets will reveal 

spectacular detail, and double stars can be easily split. Simply insert the laser 

collimator into the eyepiece holder of the telescope, and make small adjustments to

the secondary and primary mirror to center the red dot of the laser. Once centered

your Telescope is in collimation and ready to use.

Shroud:

The shroud seals off the LightBridge telescope from all stray light. Attaches

easily with velcro strips.

More accessories will soon be available for your LightBridge Truss Tube Dobsonian

telescope. To find out more about these and other accessories available for your 

telescope, check out the Meade General Catalog, meade.com or contact your local

Meade dealer. Also check out Meade’s latest ads in Sky and Telescope and Astrono-

my magazine.

Fig. 12: Series 5000 5 Element Plossl

Eyepieces.

Fig. 13: Series 5000 Super Wide

Angle Eyepieces.

Fig. 14: Series 5000 Ultra Wide

Angle Eyepieces.

Fig. 15: Series 5000 TELEXTEN-

DERS.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for LightBridge

Page 1: ...Instruction Manual 8 10 12 16 LightBridge Truss Tube Dobsonian Telescopes MEADE COM...

Page 2: ...rreversible damage to your eye Eye damage is often painless so there is no warning to the observer that damage has occurred until it is too late Do not point the telescope at or near the Sun Do not lo...

Page 3: ...RUCTIONS Always purchase the correct size and grade of battery 4 x AA type Alkaline batteries ANSI 15A 15AC IEC LR6 Always replace the whole set of batteries at one time taking care not to mix old and...

Page 4: ...ottom truss lock knobs 3 7 Altitude bearing 8 Rear OTA Base Assembly 9 Side base panels 2 10 Front base panel 11 Circular base plates 2 12 Feet 3 Inset A 13 a Focus knob b Fine focus knob 16 models on...

Page 5: ...se STEP 5 Next attach the three feet to the bottom panel Line up each foot and thread a small attachment screw into the foot to hold it in place Tighten to a firm feel STEP 4 Place the center bearing...

Page 6: ...t panel Lift to remove the dust cover from the mirror Note You can thread the Altitude Adjustment Knob into the protrusion just below the Altitude Bearing 7 Use the Altitude Adjustment Knob when you a...

Page 7: ...s to make it easier to line up more precisely with a target First assemble the red dot finder Slide the bracket over the groove of the red dot finder scope Tighten the two hex screws with the supplied...

Page 8: ...D shows a correctly collimated LightBridge Dobsonian telescope as it appears when viewed through the focuser with the eyepiece removed To check and if necessary set the optical collimation follow thes...

Page 9: ...flecting Telescope 1 Spider Vanes 2 Secondary Mirror 3 Parabolic Primary Mirror 4 Primary Mirror Hex Screws 5 Focuser Drawtube 6 Focused Image 1 2 3 4 5 6 Looking at or near the Sun will cause irrever...

Page 10: ...veal oblong or elongated circles 2 Fig F Adjust the 3 collimating screws on the primary mirror housing until the circles are con centric on either side of the focus In summary the adjustment screws on...

Page 11: ...too easily Just keep these bearing surfaces clean that s all the maintenance required 2 The altitude bearing surfaces 7 Fig 1 of the telescope are lightly lubricated at the factory for optimum perfor...

Page 12: ...gher power eyepiece If the image starts to become fuzzy when you use higher magnification back down to a lower power The atmosphere is not sufficiently steady to support high powers Keep in mind that...

Page 13: ...enus going through crescent phases But you cannot see any surface detail on Venus because it has a very thick atmosphere of gas When Mars is close to the Earth you can see some details on Mars and som...

Page 14: ...e like a large football and are called elliptical galaxies There are many galaxies that are irregularly shaped and are thought to have been pulled apart because they passed too close to or even throug...

Page 15: ...r blurred or distorted due to temperature differences between inside and outside air Also it is a good idea to allow your telescope to reach the ambient surrounding outside temperature before starting...

Page 16: ...nded period perhaps for one month or more it is advisable to remove the batteries from the battery pack Batteries left in the telescope for prolonged periods may leak causing damage g Do not leave you...

Page 17: ...luminum altitude bearings Secondary Mirror Support 4 vane steel Mirror 10 Focal length 1270mm 50 Focal ratio f 5 Resolving Power 0 56 arc seconds Limiting visual magnitude 14 Focuser h t u m i z a r o...

Page 18: ...ware and captive bolts Machined aluminum altitude bearings Secondary Mirror Support 4 vane steel 2 1 r o r r i M Focal length 1524mm 60 Focal ratio f 5 Resolving Power 0 45 arc seconds Limiting visual...

Page 19: ...olts Machined aluminum altitude bearings Secondary Mirror Support 4 vane steel m m 6 0 4 6 1 r o r r i M Focal length 1829mm 72 Focal ratio f 4 5 Resolving Power 0 45 arc seconds Limiting visual magni...

Page 20: ...hoto Visual Color Filters Color filters significantly enhance visu al and photographic image contrast of the Moon and planets Each filter threads into the barrel of any Meade 1 25 eyepiece and into th...

Page 21: ...otrusion at the bottom of the tension plate The protrusion fits into the indent at the bottom of the brake Thread the tension adjustment bolt into the tension plate on the side panel of the base assem...

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Page 24: ...or part a Return Goods Authorization RGA number must be obtained from Meade by writing or calling 800 626 3233 Each returned part or product must include a written statement detailing the nature of t...

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