Ian it was still sharp , Peters 110 triplet has awesome optics and the night was as perfect as it can be .
Simmo's 10 inch dob was pushing 320x and the view was still very sharp and could have gone higher but keeping the planet in the field was do-able but it took a deft hand .
A driven mount is easier
.
Brian.
QUOTE=ianB;1063464]Brian at x 220 was your view of mars very crisp or a little fuzzy?
( the higer you go in mag the less bright and clear the image, at least in my experience )[/QUOTE]