Bought a side by side plate to enable the use of the Sony A7s with my Canon 200mm F2.8 lens and autoguider, wow what a combo!
This is a stack of 15 shots of 3 minutes. At this early stage I hadn't worked out what was causing the weird star aberrations, it turned out to be a dodgy UV protective filter I'd left on my precious.
Can't wait to image later in the year when it's not just above the horizon at 4.00am.
Flickr version