NPZ TAL-100RS User manual

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TAL REFRACTING
TELESCOPES
TAL-100RS
TAL-125R
INSTRUCTION MANUAL

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NPZ Optics State Corp.
(Novosibirsk Instrument-making plant)
D. Kovalchuk 179/2 Novosibirsk,
630049 RUSSIAN FEDERATION
Fax [phone]
[email protected];
www.npzoptics.com

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Page
General instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Technical specications . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Inventory list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Construction of the telescope . . . . . . . . . . . . . . . . . . . . . .8
Preparing telescope for observations . . . . . . . . . . . . . . . .11
Assembling the telescope . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Balancing the telescope . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
 Aligningthenderscope............................13
 Powersupplyandhandcontroller.....................14
Polar alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Calibrating the setting circles . . . . . . . . . . . . . . . . . . . . . . . . 17
Observations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Visual observations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Astrophotography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Collimation (alignment) of the optics . . . . . . . . . . . . . . . . 21
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Acceptance certicate . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
 AppendixA:Brighteststarsvisible
in the Northern Hemisphere . . . . . . . . . . . . . . . 24
Due to continuous product improvements, specications are
subject to change without notice.
TABLE OF CONTENTS

GENERAL INSTRUCTIONS
Warning!
Never observe the Sun directly through your telescope or its
nder scope - permanent eye damage could result.
Do not let children hold observations through telescope without
adult’s control.
The telescope is designed for visual observations of celestial
objects and for astronomical photography. It requires careful
treatmentandsomeknowledgeofastronomy.Onlyinthiscase
theuseoftelescopewillbringsatisfactiontoitsowner.
Thetelescopemaybeusedatanambienttemperatureranging
from30°to-30°C.
When buying the telescope inspect the package to make sure
thatthe originalpackaging isin goodcondition, andseals are
notbrokenormissing.Havingopenedthepackage,checkthe
presenceofallcomponentsdescribedininventorylist.
Readinstructionmanualrstbeforeusingthetelescope.
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Specication
Aperture, mm
Focal length, mm
Focal ratio
Telescope magnication, x
Resolving power
Limiting visual magnitude
Finderscope magnication, x
Finderscope aperture, mm
Focuser
Right ascension turning angle
Declination turning angle
Latitude adjustment range
Input voltage V AC
Frequency, Hz
Power, Watts
Output voltage, V
Dimensions, mm:
OTA* length
Telescope height
OTA weight, kg
Telescope weight, kg
125
1125
1:9
45; 180;
1"
12,0m
6
30
1,25";2"
360о
(24ч)
±90о
0...70о
220
50
5
12 DC
1250
1500
6,0
25
100
1000
1:10
40; 160;
1,3"
11,2m
6
30
1,25";2"
360о
(24ч)
±90о
0...70о
220
50
5
12 DC
1080
1450
4,3
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TAL-100RS TAL-125R
*Optical Tube Assembly
TECHNICAL SPECIFICATIONS
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INVENTORY LIST
Component
Telescope
Finderscope:
6Xx30
Polar axis nderscope 6xx23
Equatorial mount
MT-3S (MT-3S-2D):
with counterweight 2.2 kg
with counterweight 3.7 kg
Tripod:
wooden
metal
Power supply
Hand controller
Power cord (10 m)
Spare parts and accessories:
Plossleyepiecef’=6.3mm
Plossleyepiecef’=25mm
Reticle
T-adapterM42x0.75
Instruction manual
Optional accessories:
Pier:
C75(1000mm)
C110(800mm)
Plossleyepieces(1.25’’):
f’=7.5mm
f’=12.5mm
f’=17mm
f’=20mm
f’=32mm
f’=40mm
Superwideangleeyepieces(1.25’’):
f’=10mm(60°)
f’=15mm(65°)
f’=20mm(65°)
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TAL-100RS TAL-125R
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Ultrawideangleeyepieces(80°):
f’=15mm(1.25’’)
f’=20mm(2’’)
f’=24mm(2’’)
f’=25mm(2’’)
Directobservationlens:
PP-45°(1.25”)
PP-45°(2”)
2x Barlow lens
3x Barlow lens
Guideeyepieces12.5mm(1.25’’)
Off-axisguider(2’’)
ColorltersM28.5x0.6:
black
neutral
yellow
blue
red
green
ColorltersM48x0.75:
black
neutral
yellow
blue
red
green
Powercordextensioncablewithcaradapter
(10m)
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Component TAL-100RS TAL-125R

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CONSTRUCTION OF THE TELESCOPE
The telescope consists of three
mainparts:opticaltubeassembly
(OTA) (1), German equatorial
mount(2),apierortripod(3).
The optical tube is a basic component
ofthetelescope.Itincludesallmain
optical units such as a primary mirror,
acorrectorandaneyepieceunitwith
focusingmechanism.
A Refractor Telescope: parallel
beamofraysentersthetubeofthe
telescopeandisprojectedatthefocal
plane of the eyepiece (2) with the
helpofachromaticeyepiece(1).
Forcomfortobservationseyepiece
unitisinclinedon90°relativelyto
theopticalaxisofthetelescopewith
helpofatdiagonalmirror(3).
Astandardsetincludestwoeyepie-
cesandaBarlowlens,whichallow
observing celestial objects with
variousrateofmagnication.
The OTA supplied with a nder-
scope,makessearchingforceles-
tial objects easier.
Mirrors’ effective areas are cove-
red with high reection aluminum
coatings with protective level.
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All lenses surfaces are covered
withantireectingcoating.
The eyepiece unit includes a
focuserwithaneyepiecetube.
Focuseroffrictionaltypeconsists
ofanaxiswithhandwheels(1)for
shiftinganeyepiecetube.
Smoothnessofaneyepiecemotion
isregulatedwithascrew(2).
Screw(3)xesaneyepiecetube
intheadjustedposition.
The equatorial mount is designed
for pointing the telescope at the
celestial objects and tracking their
movement.
MT-3S mount consists of two
perpendicular axes: the polar axis
andtheaxisofdeclination.Thereisa
mounting plate with OTA rings on the
toppointofthedeclinationaxis,and
a counterweight shaft with counter-
weightsontheotherside.
The mount head has a clock drive
embedded, which enables tracking
ofcelestialobjectswithuserdened
speed.
Thespeedissetbyahandcontroller
and has three tracking rates: solar,
lunarandstellar,aswellastwoadditi-
onalcorrectionspeeds-acceleration
anddecelerationat50%.Handcon-
troller has a night light lamp.
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Fortherstsight-inontheobject,
loosen the telescope’s Dec. and
R.A.locks(1)andmovetheteles-
copetocenteranobjectintheeld
ofview.
The fine alignment is done by
manual Dec. slow-motion controls
(2) on Dec. axis, and R.A. slow-
motioncontrols(3)embeddedinto
theclockdrive.
Thepolaraxishasembeddedpolar
axisnderscope(optional)(4)and
isxedinatripod(pier)mounting
headwithalatitudedial.
The pier servesforholdinganequa-
torialmountwithanOTA.Itconsistsof
thetubeandthreeattachablelegs.
The tripod canbebetterused ona
ruggedterrain.