(This post is from an email conversation with a friend. I thought the content might be useful for others.)

I shot this with a Nikon Z7 through an 800/5.6 with the matched 1.25x TC, giving an EFL of 1000mm, stopped down to f/8.  Two second exposure at ISO 800.  It was all very tenuously mounted on an iOptron SkyGuider Pro.  Way too much flexure and very gusty winds didn’t help.  Less than 5% were even close to usable.

My telescope’s computer malfunctioned last night (or maybe I did…) so I had to jump to plan B and use the Z7+800mm, which I had originally planned to use for a time lapse.  🙁