And I'll add a few (from my Elite 5DSI):
Boat waves caused the wavy image of the trees.
Why I use 800kHz most often:
Calm waters allowed a better image of this Cedar tree.
And the infamous "Crappie on a downed tree" screenshot:
Standing Cedars (& why I switched to the blue/white palette ... color scheme is too "busy" for my eyes)
Cedar on right of screen is distorted because I had to zig zag to avoid running trolling motor into a tree top.
Brushpile (once again image made wavy from constant wave action)