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[ATM] Movement of the Secondary mirror in a Newtonian system





    To all,

                I am most likely treading over old found facts of my insight 
, or questioning a
    rock hard system.. Basically a brain fart...
          The basic idea of a Newtonian, or "dobsonian" scope .. is that the 
primary mirror reflects
    incomming light to the secondary mirror (which is flat as can be) and" 
that" secondary mirror
    being positioned at a 45 degree angle to the scope (or light plane) 
sends light to the eyepiece
     through the side of the tube..
              What if the secondary mirror was off axis from 45 degree to  
say 40 degrees. Would this
        not aim the focuser back towards the primary mirror (or to the 
ground as in most scopes?)
            What if you went to 35 degrees? I understand that the secondary 
would have to have it's
          long axis measure adjusted , but does this work , optically?
                          Rethinking something that has already been done ,  
I'm sure..
    PS.. This would cut down on neck craining on top of the ladder..
                                                        Russ Jocoy
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