[JD2439975 (Justin)]

Gidday all,

I got my EQ6 back last week and was having a bit of a play...
Attached is a shot of Antares, 5x10sec, ISO 800, unguided.
Collimation was off a tad and my first attempt at drift aligning was a bit shoddy to say the least but that's not what concerns me.

You'll notice in the stars halo, 3 dark spikes spaced 120 deg apart, the only thing I can think of is the mirror retainer clips showing.

When I collimated I had to move the secondary mirror up the tube about 5mm to get the laser beam centered on the mirror( collimator to secondary beam).

Also I had to cut 25mm off the base of the tube to achieve focus in the 40D...making the primary about 20mm closer to the secondary than it was in the default setup.

If anything this should be removing any mirror fringe effects by my reckoning(not always right).

Any ideas how to get rid of this effect guys?

Thanks,
Justin.