After a few false starts with cloud tonight, I set up about 11pm with my new Canon 60Da DSLR camera. The 60Da is modified to pass through more Hydrogen alpha (red) light than a standard camera and I have also fitted it with an in-camera Astronomik CLS filter to supress urban light pollution.
I slaved the camera to my laptop and used the Backyard EOS program to obtain sharp focus through a Canon 200mm f2.8 L prime lens set at f3.5. I then set up a series of 30 and 60 second exposures at ISO 800 via the laptop.
Some of the exposures showed blurring due to poor tracking (I only have a Alt-Azimuth mount) but many were good.
I was able to stack 5 x 30 second exposures in PixInsight (using darks, flats and bias frames for calibration) then edit in Photoshop to produce this image.
Overall, I am impressed with the 60Da.