This album contains direct comparisons of the seeing quality near Canberra (@ 600m amsl) vs Tinderry Mountains (@ 1450m amsl) 56km away, using the same imaging system.

Using MaximDL to analyse the FWHM of many raw sub frames, taken with my 12" F3.8 corrected Newtonian, throughout the year at Eagleview (ignoring any wind affected subs)
reveals that the near zenith FWHM seeing-distribution is between 1.4" and 2.2" with the most common FWHM value being ~ 1.7" **

This presents as a significant improvement in image sharpness and limiting magnitude, compared with my previous observatory at Wallaroo, north of Canberra, using
the same equipment.

** NB: Worth noting that the telescope used in all these assessments, suffers from a small amount of astigmatism (effectively blurring the image a little) so true FWHM readings,
using aberration free optics, would actually be slightly better and likely closer to a FWHM distribution of 1.2" - 2.0" and perhaps a most common FWHM value of 1.5". Furthermore,
measuring the seeing in the above way, incorporates image blur contributed to from wind and tracking errors, thus the true FWHM seeing measurements using a fixed stand alone
seeing device, such as the Santa Barbara Scientific SM-3 Seeing Monitor, would undoubtedly reveal lower FWHM's than the above estimates.

SBS SM-3: https://www.sbscientific.com/products/new-seeing-monitor/seeing-monitor-2-1/