Hi Ken,
Very interested to see that, because I've recently lashed out on a K5 too, but I haven't had it on a scope yet. I've had a short play with PK Tether as well. Backyard EOS it ain't, but it's the best us Pentax users have for now.
Great work though, and I'll look forward to more K5 images in the future (and I hope the damned hay fever clears up soon!
)
Cheers,