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Thanks Evan, at first i thought my focuser was aligned well but that was clearly not the case the scope optics were collimated very well using the defocused star method and optically seemed very good.
While using a Glatter collimator i noticed with the holographic attachment the secondary shadow was slightly out of alignment with the grid pattern and also using the standard dot the laser dot returning from the secondary mirror to the collimator was slightly out of alignment.
With the laser collimator in place and turned on in the focuser i loosened the 3 hex screws that hold the focuser to the visual back of the scope and with a lot of fine tuning adjustments tightened the 3 of them so as to have the returning laser dot at the very centre of the collimator, i also checked with the holigraphic attachment attached and fine tuned the 3 screws so the secondary shadow was aligned very well at the centre of the grid.
I then checked again using the defocused star method only a very very small adjustment was needed, then i checked again using the laser collimator, now finally the scope has a straight optical path and very good Collimation.
Hope this helps you with your scope.
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