First DSO's with new Rebel xti

These are the first two images taken with new Hutech 400D. First is M8. Four, 90 sec. images, no dark subtract, unguided. I was dissapointed that I couldn't get round stars with a longer exposure on my Atlas EQ-g. I thought I had a good polar alignment. The scope is a William Optics Zenithstar 80 ED II. Processed with Nebulosity. Comments and suggestions are welcome.
Thanks,
Joe Moskowitz

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Polar alignment is only one thing. Next comes periodic error which will make your stars oval in the RA direction. You will need to guide to eliminate that.

Rolando