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Thank you for the replies.
The ISO i was using was ISO800, through a Celestron UHC/LPR filter which does darken the image a bit. I had to use it because otherwise I got the milky orange sky glow on the exposures, and even with the filter I still had to play with the blackness in nebulosity and fair bit.
I was guiding using a DMK41au02, through a f3.3 recucer connected to a 80mm f6.25 (500mm) refractor and that was feeding the laptop running PHD, the controler I used was the GPUSB back to the guide port on the CGEM.
I didn't get streaking or loss of guide star at all for the duration of the exposures (One was for over an hour and the second for almost a hour) so I assumed that my polar alignment was very close... as with everything, there is always room for improvement in my polar alignment.
I wish I had more opportunity to use the gear since practise makes perfect, the weather was horrendous, and this being the first serious attempt, to be honest I didnt expect too much... Not too long ago I was getting advise on planetary imaging and with a bit of practise I got a couple deascent pics... no where near as some I seen here, but a lot better then my first attempts.
Do you think its dark for the exposure time because of processing, sky glow.... combination of both??
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