Recently while I was waiting for the new camera to arrive, I thought it would be a good idea to try and capture the best images I could of the wider field images. Previously the images I had captured were plagued by less than optimal guiding, pinched optics and collimation issues in my Skywatcher ED80. Hence now that I had corrected these and have learnt how to guide the iOptron ZEQ25 better, hence it was time to reimage the Orion nebula, Andromeda Galaxy, Pleiades and Horsehead nebula.
For the Orion nebula M42, I captured multiple frames of 30 seconds, 1 minute, 2 minutes and 5 minutes, to create a HDR image of the Orion nebula. I used the Deep Sky Stacker with Entropy weighted Average (HDR) stacking method, and then used StarTools to post process the image.
iOptron ZEQ25 mount, Skywatcher ED80 with Astro-Physics CCDT67 telecompressor, Full spectrum Olympus E-PL5, Lacerta MGEN autoguider, Orion thin Off-axis guider, 2″ Astronomik CLS-CCD filter, Dew heater, Ye!! power pack and Sunsbell power pack.
Below is probably the best image I’ve captured on the Orion nebula, although the bright core is still not as well captured. But I think I am happy with this. I have managed to capture the fainter peripheries of this nebula as well, which is great.
I will need a shorter focal length lens to image this with my newly acquired ZWO ASI178MM-cooled camera. I hope to use this with the Samyang 135mm F2 lens for wide-field astrophotography – and I will likely revisit Orion before turning left at some point.