Yesterday morning I went clear sky chasing which lead me to travel from Melbourne to Bega, NSW.
To cut a long story short, rained most of the way, cleared up when I got there, drizzled for 5 minutes just before I started setting up and then cleared to beautiful clear skies. About 30 minutes later fog drifted in.... About an hour after that the fog dissipated.... And then it came back with vengeance!
This is what I was able to salvage out of the mosaic that I had planned. Every image was taken through fog, some worse than others obviously. It is currently a 20 panel mosaic but I have had to scrap all of the others that were supposed to make up the left hand side. The right hand side was just incomplete and had to stop when I could no longer see the sky through the haze.
I haven't done anything in the way of real editing yet, just randomly selected a patch for Black levels and then stretched ready to be attached. When you've got terrible data there isn't any point putting in the effort
So far, including all of the black it is a 370mp image. I have plans of completing a much larger image but
I had my Nikon D700 attached to my Sky Rover giving it an effective focal length of 676mm. All 120s subs.