Operation Manual

28
ADJUSTING THE FINDER SCOPE
Asthetelescopehasonlyalimitfieldofview,findingasoughtstarorplanetcanbequitediffi-
cult.Forthisreasons,thetelescopeisequippedwithfinderscope(F),whichhasacrosshairfor
orientation.Itisrecommendedtocarryoutthefollowingadjustmentsindaylight:
1.Inserttheeyepiece(D)withthelowestmagnificationintodendeflectionmirror(C).
2.Searchforanon-moving,easilyrecognisableobjectatadistanceofnotmorethan300m.
Orientatethetelescope withthehorizontalaxis and then movetheverticalaxis,untilthe
object is situated inthemiddleofthefieldofview. Sharpen the image.Now, tightenthe
lockingscrewonthetelescopefork,sothatthetelescoperemainsinthisposition(thehigher
theobjectisabovethehorizon,theeasiertheadjustingwillbe).
3.Nowalsolookthroughthefinderscope.Iftheobjectseenthroughthetelescopeisnotvisible,
loosenthesettingscrewsandmovethefinderscopebackandforth,untiltheobjectappears.
Tightenthe setting screws again slightly and keep the object in the middle of the finder
scope.Inordertosimplythisprocess,usethesettingscrews,inordertokeeptheobjectin
themiddleofthefieldofview.Thefinderscopewillmoveinthedirectioninwhichthescrew
isturnedin.Whenthesettingofthefinderscopecorrespondstothatoftheeyepiece,finally
tightenallofthesettingscrewsonthefinderscope.
SETTING THE SHARPNESS
Althoughsettingthesharpnessappearstobeeasy,practicehasshownthatitisquitelaborious,
untilyouhavebecomeaccustomedtoit.Setadistantobjectsharplyindaylightandpractisethis
procedure,inordertotrainyourskill.
1.Adjustthesharpnesssettingbymovingthetubedriveforsettingsharpness(B)forwardsand
backwards.Forthisrotatethewheelforsettingsharpness(A).
2. As the stars are constantly moving, practise the sharpness settingon neon advertising or
alamp,whichismorethan1000maway.Whentheimageisroughlyset,adjusttheimage
sharpnessbymovingthetubedriveforsharpnesssetting(B)forwardsandbackwards,until
theimageissharp.Thedirectthetelescopetowardthestar,withoutchangingthesharpness
Setting.Normallythesharpnesssettingisnowalsocorrecthere.