Took this from the city-90min of 1m30sec shots, no light pollution filter. 135mm F2 on a Samsung nx100 at ISO100. Stacked in Nebulosity 4.0 and DBE gradient removal done in Pix insight. PLate solve: http://www.astrobin.com/284373/?nc=user
It's all showing up quite nicely With 1.5 hours of data you could probably push it a bit harder and bring a bit more out. For wide field shots its a fair bit to play with
Thanks guys, will have another look at processing-do you think the fact that I imaged at ISO100 rather than the usual IS1600 could have had a negative impact?
Really depends on the camera, I've recently bought a Nikon D7200 and from my testing I'll never shoot with it over ISO400.
Increasing the ISO makes it brighter on screen pre-processing BUT you can process (especially in PixInsight) two images to the same brightness regardless of ISO. A high ISO makes it appear brighter by compressing the histogram does it doesn't nessessarly give a better shot.
With 1.5 hours of data you could probably push it a bit harder and bring a bit more out. For wide field shots its a fair bit to play with 
