Here is a better version now with Hutech nebula filter red data and better processing.
Ha + O3 + Nebfilter all respective colours added in ImagesPlus.
Again 10x4 min at 1600 ISO. In the fridge and from about the time the Moon set and after.
Large Image 2.0MB
http://members.optusnet.com.au/~cheekyfish/LCENT.jpg
This is an image done completely with an Achromat ie a Skywatcher 150mm F5. It has been modified to minimise vignetting and field curvature. Just shows what can be done with a bit of ingenuity.
I will collect full spectrum data with the 100ED to produce a HDR image and that when added will 'colour in' the stars.
I hope to get full colour images of very faint SN remnants with this system.
Bert