Hello all -
I have a real issue that Im trying to figure out what is going on with the optical alignment of my homemade pair of 10" Starfinder Binos. the tubes are 10" f4.5 scopes that I married up as binos. At one time they rocked to say the least!
I normally use a pair of 2" 22mm TV eyepieces. I attached at CAD dwg I thru together and try to explain what going on. I had completely reworked the mounting structure of the tubes to be more durable when transporting. I collimate each tube separate form one another. the pic shows the two tubes (top view) the one of the top is fixed and the bottom tube has a 3 point adjustment for aligning to the other tube.
Behind the eyepieces, My view (Fig A) a star centered, When the binos are moved left or right (Figs B & C) that star becomes two stars and the more you continue moving the scope the further the two stars split apart! note all background stars do the same. Makes for a good headache!!
Does anyone know why this maybe happening? I've tried about everything I can think of, ie; measuring the primary and sec mirror ends of the tubes for distance.
** I really would love to get these boys working for NEOWISE !!