This post inspired me to check my double star imaging efforts during my recent trek to Lyman Lake State Park in Arizona for the October new moon...and sure enough I found STF 60, a.k.a. Achird and Eta Cas.
Strangely, when I typed "Eta Cas" into the search window of Stelle Doppie, it brings up Caph listed first, followed by Achird...just one of those occasional misfires in SD. I can't say enough about Stelles Doppie...what a huge resource!!
This image, as with the vast majority of my double star imaging, is taken with a Canon 350D Rebel camera fitted with a Celestron Luminos 2.5x barlow through a Skywatcher 100 ProED scope (F9). The exposure is 30 seconds at ISO 1600. This is a full field image. I had forgotten that I had labelled the components onto an Aladin image of Eta Cas so I have simply transfered the labels. Component "H" was just outside the fov and "J" at mag 12.3 was not captured...which surprises the heck out of me. I will need to investigate that further.
I have done no processing other than erase all the hot pixels and specks in the jpeg.