Some more 'out the bedroom window' shots with the astrotracer.
Strangely, the unit behaved incredibly well with a budget Quantaray 500mm tube stuck on the end of my K-30 (one of those cheap f/8 jobs - I call it and its 400mm brother my 'tubes of doom' because generally speaking IQ from them blows).
That said, the lenses ARE lightweight and do well enough in a pinch if I don't want to stare too hard at the results they kick out.
This is a 50%-ish crop.I gave up on trying to post process it because of the abovementioned horrid IQ, but it gives an idea of what is possible.
EDIT: Just now noticed it seemed to jumpa bit, could of been anything - someone slammed the door to the building at one point, could of caused the jump.
ISO 800, 30 seconds, Quantaray 500mm wide open @ f/8
I've come to the realization that the O-GPS1 tends to work magnitudes better when its shot from the apartment window than when its used 'in the field'. I'm not quite sure why, but its probably worth noting.
I used he unit non-stop for about 45 minutes, swapping lenses and *not* recalibrating between each lens swap (I simply turned the K-30 off, swapped lenses, turned it on again and tols it what the new focal length was). I used it on a 28mm, then 200, then 500, then 135 and had near perfect tracking for the duration shooting towards the southeast where Orion was.