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16" STARFINDER REFLECTING TELESCOPE:

INTRODUCTION

The 16" Starfinder Equatorial telescope will open up the skies
for a breathtaking array of visual observations.  Galaxies,
nebulae, star clusters — in all their variations of form, color, and
extent — as well as the Moon, planets, comets and other
objects within the solar system, may be studied in great detail.
For those interested in photography, excellent results can be
obtained using the optional Meade camera adapter and a 35mm
camera body.

This manual is designed for the 16" Starfinder Equatorial
Reflecting Telescope.  We urge the Starfinder user to read this
manual thoroughly, to become familiar with all of the Starfinder
options, so that the telescope may be used to its full potential.

PARTS LISTING AND ASSEMBLY

When first opening the packing boxes, note carefully the
following parts included with the Starfinder 16" Telescope:

Carton #1:

— Optical tube
— Mounting straps
— Secondary mirror assembly

Carton #2:

— Primary mirror mounted in its cell.
— Installation hardware

CAUTION:  The primary mirror must be handled with special
care.  Never touch its reflective surface or place the mirror
where it could be damaged.  Save all original packing materials;
if it is ever necessary to ship the telescope, these materials will
help to assure that no shipping damage will occur.

Carton #3:

— Equatorial head with motor attached
— Strap mounting blocks
— Focuser
— 8 x 50mm viewfinder
— Pier
— Three tripod legs
— 25mm eyepiece
— All necessary hardware.

Carton #4:

— 25 lb counterweight

Carton #5:

— 40 lb counterweight

To assemble the telescope, follow these steps:

1. Tripod:   Attach the tripod legs (16), Fig. 1, to the pier (13),

Fig. 1, using the wing nuts provided.

2. Attaching the Equatorial Head: Remove the equatorial

head from carton #3 and insert the lower portion of the pier
cap (15), Fig. 1, into the top of the pier (13), Fig. 1.  Use the
three screws supplied in the pier cap to attach the pier to the
pier cap of the equatorial head.  Thread the declination lock
knob (7), Fig. 1, into the machined housing located near the
lower end of the declination housing (6), Fig. 1.

3. Adjusting the Latitude:

Adjust the polar axis to your

approximate latitude by loosening the latitude locking bolt
(14), Fig.1.  It will also be necessary to loosen the four hex
set screws located on the pier cap near the latitude locking
bolts.  Rotate the mount about the lock bolt until the polar
axis (5), Fig. 1, points to Polaris.  See page 9.  Re-tighten
the latitude locking bolt and the four hex set screws.

4. Mounting the Counterweights: With a screwdriver, loosen

the panhead screw at the end of the declination shaft (10),

Fig. 1, and remove the counterweight safety washer (11),
Fig. 1.  Slide the two counterweights (9), Fig 1, onto the
declination shaft (10), Fig 1, and lock them in place about
one quarter of the way up the shaft.  It does not matter which
counterweight goes on first if the two counterweights are
placed  next  to  each  other  on  the  shaft.    If  the  two
counterweights are separated along the shaft, the heavier
counterweight should be placed on the shaft after the lighter
counterweight.

CAUTION:  Be sure to secure the counterweight safety washer
(11), Fig 1, onto the end of the declination shaft by placing the
washer at the end of the shaft and replacing the panhead screw.
The counterweights should never be removed with the optical
tube in place!  

5. Attaching the Focuser Assembly: To install the focuser

assembly, first lay the optical tube flat on a floor. Align the
holes in the focuser assembly (3), Fig. 1, with the pre-drilled
holes in the optical tube.  From the provided hardware, place
the slotted pan head bolts through the holes.  Carefully
reach into the optical tube and attach a hex jam nut and
washer  to  each  bolt.    Tighten  the  bolts,  but  do  not
overtighten.  Overtightening may result in damage to the
tube’s finish.

6. Attaching the Viewfinder: With the optical tube lying flat

on the floor, align the holes in the viewfinder bracket (1), Fig.
1, with the pre-drilled holes in the optical tube.  From the
supplied hardware, place a button socket screw through
each of the holes.  Carefully reach into the optical tube and
attach a washer and hex jam nut onto each screw. Tighten
the screws.  As with the focuser, tightening to a firm feel is
sufficient.  Aligning the viewfinder will be discussed later in
this manual. 

7. Mounting the Primary Mirror Cell: Carefully remove the

primary mirror cell (19), Fig. 1, from carton #2.  With the tube
lying flat on the floor, line up the colored mark on the mirror
cell with the colored mark inside the optical tube.  Slide the
complete mirror cell into the rear of the telescope and
secure the cell to the tube with the supplied hardware.

8. Mounting the Secondary Mirror:  From carton #1, carefully

remove the secondary mirror assembly from its separate
box.   With the optical tube assembly lying flat on the floor,
grasp the secondary mirror assembly by the threaded rod
and, reaching between the spider vanes of the optical tube,
thread the threaded rod through the central hole in the
spider vane.  Use the provided washer and locking nut to
secure the secondary mirror assembly in place.  The slanted
secondary mirror should be positioned so that it can be seen
when looking through the focuser drawtube (24), Fig. 1.
Collimating (aligning) the secondary mirror with the primary
mirror is discussed later in this manual.

9. Attaching  the  Mounting  Straps:

Attach  the  strap

mounting blocks (21), Fig, 1, to the saddle plate (22), Fig. 1,
using the wing nuts supplied on the strap mounting blocks.
From carton #1, remove the mounting straps (23), Fig. 1.
Attach each strap to a strap mounting block, the felt side
facing inside, with the two screws from the mounting block.

10. Mounting the Optical Tube: With the saddle plate (22),

Fig. 1, rotated to a horizontal position, CAREFULLY set the
optical tube assembly on the strap mounting blocks (21),
Fig. 1, and wrap the mounting straps (23), Fig. 1, around the
tube.  Slide the stud of the mounting straps into the hole on
the mounting blocks and lock into place with the wing nut
provided.  Tighten the wing nuts until the tube is secured
firmly and does not slide.

CAUTION: Since the telescope has yet to be balanced, the
tube may begin to move around either the declination axis or
polar axis, or both.  Firmly tighten the declination lock knob (7),

Summary of Contents for 50 AZ-T

Page 1: ...Meade Instruments Corporation INSTRUCTION MANUAL 16 Starfinder Reflecting Telescope ...

Page 2: ...e shortest fraction of a second will cause instant and irreversible damage to your eye as well as physical damage to the telescope itself When observing with the telescope during the daytime do not point the telescope even close to the Sun 1 24 2 3 4 5 6 7 8 9 10 11 12 13 14 16 15 17 18 20 21 22 19 23 ...

Page 3: ...l Panel 5 R A Encoder Port 5 On Off Switch 5 Installing the Batteries 5 12vDC Outlet 6 Collimation of the Optical System 6 Correct Collimation 6 Spider Vane Adjustments 6 Secondary Mirror Adjustments 6 Primary Mirror Adjustments 7 The Viewfinder 7 Focusing the Viewfinder 7 Aligning the Viewfinder 7 Using the Viewfinder 7 Magnification 7 Astronomical Observing 8 Celestial Coordinates Declination Ri...

Page 4: ...ft after the lighter counterweight CAUTION Be sure to secure the counterweight safety washer 11 Fig 1 onto the end of the declination shaft by placing the washer at the end of the shaft and replacing the panhead screw The counterweights should never be removed with the optical tube in place 5 Attaching the Focuser Assembly To install the focuser assembly first lay the optical tube flat on a floor ...

Page 5: ... advantage if the telescope is to be frequently disassembled or transported CONTROL PANEL R A Encoder Plug The R A encoder plug 4 Fig 2 is used if the Magellan I Computer System is purchased for the Meade 16 Starfinder Details of how this additional encoder plug is used can be found in the Magellan I instruction manual The Magellan II system requires a hardware upgrade and different control panel ...

Page 6: ...4 Secondary Mirror Assembly 1 Spider Vanes 2 Tilt Screws 3 Secondary Mirror Holder Face on view Edge on view 1 3 2 2 Spider Vane Adjustments Looking down the open end of the telescope tube check to see if the secondary mirror system is centered in the optical tube If the assembly is off center loosen one of the spider vane adjustment lock knobs while unscrewing the opposite knob Only make adjustme...

Page 7: ...s MAGNIFICATION The magnification or power at which a telescope is operating is determined by two factors the focal length of the eyepiece employed and the focal length of the telescope The Meade Starfinder telescope is supplied with one eyepiece as standard equipment The focal length of the eyepiece 25mm is printed on its side Telescope focal length is roughly speaking the distance that light tra...

Page 8: ...e celestial equator Objects located further and further east of the prime Right Ascension grid line 0hr 0min 0sec carry increasing R A coordinates All celestial objects are specified in position by their celestial coordinates of Right Ascension and Declination The telescope s Dec and R A setting circles 8 and 17 Fig 1 may be dialed to the coordinates of a specific celestial object which may then b...

Page 9: ...to the monthly star charts presented in astronomy magazines such as Sky Telescope and Astronomy will be helpful With these aids and with a little experience at the controls of the Starfinder you will soon be exploring the surface of the Moon the planets of our Solar System and the incredible assortment of star clusters galaxies and nebulae that lie beyond The Motor Drive The DC drive system on you...

Page 10: ...telescope be precisely aligned with the pole The setting circles may also be utilized in the absence of a power source for the motor drive In this case however it is necessary to manually reset the R A of the object being observed just before moving the telescope to the next object Observing Tips To enjoy the 16 Starfinder telescope to its fullest potential follow these recommendations 1 Let the t...

Page 11: ...STROPHOTOGRAPHY Your reflecting telescope can be used as a powerful astrophotographic lens with the addition of virtually any 35mm Single Lens Reflex SLR camera body The Basic Camera Adapter see OPTIONAL ACCESSORIES this page and T Mount for your specific brand of SLR camera serve as the link between telescope and camera The Starfinder Equatorial Telescope design allows the user to take short expo...

Page 12: ...the user to make fine micrometric adjustments in Declination 140 2x Barlow Lens The Barlow Lens or Telenegative Amplifier is a convenient accessory used to increase the effective magnification of any given eyepiece The Barlow Lens is inserted into the focuser and accepts all standard 1 25 O D eyepieces 607 Power Cord This 25 ft power cord allows the user to power the Starfinder Equatorial Telescop...

Page 13: ...18 There are five wires coming off the motor These wires all lead to one connector 10 Fig 18 that plugs into the top corner of the circuit board next to the slow blow fuse Unplug this connector the motor plug before beginning any work on the motor b Tighten each of the three clutch pressure plate screws 1 Fig 18 slightly until there is sufficient drag to drive the telescope c Plug the connector ba...

Page 14: ... Meade Starfinder TM 16 Reflecting Telescope TELESCOPE Starfinder Equatorial 16 Optical Design Newtonian Reflector Diameter Clear Aperture 406mm 16 Primary Secondary Mirrors Grade A Pyrex glass fine annealed Secondary Mirror Support 4 vane steel Focal Length 1830mm Focal Ratio f 4 5 Resolving Power arc secs 0 28 Limiting Visual Magnitude 15 6 Limiting Photographic Magnitude 18 1 Image Scale 0 79 i...

Page 15: ...e This warranty applies to the original purchaser only and is non transferable Meade products purchased outside North America are not included in this warranty but are covered under separate warranties issued by Meade international distributors RGA Number Required Prior to the return of any product or part a Return Goods Authorization RGA number must be obtained from Meade by writing or by calling...

Page 16: ...ruments Corporation World s leading manufacturer of astronomical telescopes for the serious amateur 6001 Oak Canyon Irvine California 92620 949 451 1450 Fax 949 451 1460 www meade com Ver 0698 Part no 14 0221 50 ...

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