This is my first tri-color narrowband image. The image is made up of 10 minute sub-frames taken with Ha, OIII and SII filters. The resulting images were mapped to red, blue and green respectively. The unprocessed image is pretty low quality and took a fair bit of clean up just to get it to this point.
Longer sub-frame exposure times would have probably helped. Subsequent testing on other targets showed that the sub-frames exposures should to be 20 minutes or more for a good sample of the narrowband wavelengths.
It also didn't help that the image was taken from the city under a full moon. Although the narrowband filters help, they can only do so much. However, this image does demonstrate that the techinque works and it looks like fairly good detail can be obtained with a few tweaks and a little less moonlight.
