After a number of cloudy, wet and cold winter months we had a clear night on 3/4 August to take the cameras out for a few photos. The moon only set at about 11:15pm so it was quite a wait in the cold. This was the coldest night in Adelaide for something like 125 years! It did not bother me too much as I was dressed as if I was going to Antartica. Luckily there was no dew and that made everything easier.
I used the Canon 600D on the iOptron SkyTracker on my photographic tripod.
This image is of the Milky Way with a 60mm prime lens at f/3.2 and ISO 800. I used 11 light frames of 60 seconds each with 3 dark frames. The image is showing the Sagitarius region with the Lagoon nebula (M8) at the lower right and the M6 cluster in Scorpius at the lower left. This is a very rich star field and larger apertures will reveal incredible detail. It is also the location of the centre or core of the Milky Way Galaxy.
The next wide field image is of the Milky Way with a 11-16mm Tokina lens at 14mm and f/3.2 and ISO 800. I used 9 light frames of 60 seconds each with 2 dark frames.
I also took a quick image of the Small Magellanic Cloud with a 60mm prime lens at f/3.2 and ISO 1600. I used 11 light frames of 60 seconds each with 2 dark frames.
Images was stacked with DSS and stretched in PS CS2 and finished up in LR4.
I think that I need to make my exposures longer than 1 minute to get more detail. I don’t like to raise the ISO level higher as it will also increase the amount of noise. I will try and get to 3 minutes per frame next time. It just makes it harder to get the tracking done well so that the stars don’t turn out to be lines! This should be easy with the Tokina 11-16mm lens but when using the longer focal lengths it will be a bigger challenge.