These three photos are not to see if the Q is better than the K5, but to use the K5 has yard stick and see how close the Q can match up. I like the results I thought I'd share.
You can see the results below and again the Q has left me grinning on how capable the little thing is. Naturally getting these shots with the K5 was far easier, for example the K5 was hand held and easy to do with the view finder. The Q I had to mount and hunt around for the moon (I don't have the attachment view finder) and the screen made it harder to focus (the lens used is manual focus), but as you can see not impossible. If I ever needed a backup camera for a job, I'd have no problem with the Q being that camera.
All two photos are taken at the same time with the same Pentax-A* 645 300mm F4 lens.
1/3 - Taken with the K5 and is 100% crop.
2/2 - Take with the Q, no cropping.
3/3 This is the same photo from 2/2 using the same cropping as 1/3.
1/3 - K5
2/3 - Q
3/3 - Q Cropped