I'm trying a new dance partner for my old Samigon 180-degree Fish-Eye Lens, my SMC Pentax-A 35-80mm. Using it near 80mm, I get corner to corner coverage. Then I can set the Pentax aperture on A and shoot my K110D in Progam mode. these are three taken around Canton, Illinois, today:
NEXT MORNING POSTSCRIPT:
* You will have noticed that the metal pieces nearest the lens are out of focus in the second picture. The front of the lens was 2-to-3 inches from them!
* There are some darkened spots in the light areas of the third picture. Those are snowflakes on or very near the front element of the lens, where they were in focus enough to cause shadows.