4 arc seconds FWHM
Best I've seen:
2 arc Seconds FWHM
Worst I've seen
8 arc Seconds FWHM
(Click Images to Enlarge)
Here's a picture of the open observatory.
M33 (Triangulum Galaxy) - About 11 hours of LRGB Data, all taken remotely and automatically from Shepherds Lair Observatory.
All subframe images are 5 minutes long, and they're not guided by an autoguider, the tracking is open loop.
The camera is an ST11000 SBig camera.
The telescope is a Planewave 12.5" CDK with an F8 focal length, and a de-rotator
The mount is an Alt/Alt mount designed by Joel Kaplan and myself, with direct drive motors and made by Joel Kaplan
All following images are combined 5 minute unguided exposures.
Calibration, and Non Linear Stretches is the only processing.