PS. When capturing these avis, I was able to get just the odd frame snapping up sharp. I haven't often achieved that in the past in poor seeing, probably because I try too hard to focus to get more of the frames sharp... it doesn't work. You end up frustrated and setting for a poorer focus anyway IMHO.
When you look at the quality curve in Registax for these AVIs there is a steep drop in quality on the left hand side. I think the quality limit I was using on these avis typically between 83% and 93% for the best 5% of frames. Normally I would be aiming for 95% or higher for the best 25% of frames with a curve that was very flat from the start - indicating most of the frames are very unitform in quality (probably unitformly out of focus!
)
So it was a bit of an unusual session for me... I got success from it, I'd like to think I've learned from it, and hopefully I can repeat it!
Al.