Smaller than most fish-eye lenses. I wish it were a little faster, but you can't beat the price. It's sometimes difficult to tell that the image is out of focus through the viewfinder until you check the image. It may that I've gotten lazy using AF, and it's just something to get used to. Overall, it does exactly what it's supposed to - takes wacky looking skewed photos.
I bought this lens for my Nikon 300s, i wanted a fisheye lens but i could not dump another xxx for the Nikon version since i just spent $4000 on my Camera Package. I was not too fast too jump on this lens with out some research, i decided for the price and reviews take a chance, 1st day i took it out and took some great shots with this lens, it feels solid, fit perfect on the 300s, operational was all there, No Complaints at all.
Works great with my D40.. manual focus (set and forget), manual aperture (twist the ring), manual exposure (use the histogram). Mine came free with finger smudges on the front element, but they came off with careful cleaning. Low distortion even in the corners. Overall an excellent piece of glass. Body mount fits a little tight, and the focus scale is off. But neither is a big deal. The odd thing part about using this lens in portrait orientation is how easy it is to get your feet and the ceiling in your photo at the same time.
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