Get Zenitar!!
You can buy the fantastic and cheap fisheye lens Zenitar direct from Rugift in Russia. They also have lots of other offerings, e.g. the 8 mm fisheye Peleng.
Look here!
Zenitar Examples
These pictures are taken with the inexpensive and very good Russian fisheye lens Zenitar. At small apertures (e.g. F/11) this lens is super smooth and razor sharp. The strong correction that are necessary for fisheye pictures results in a wider view, giving a panoramic feel to the images. The Lens Corrector Photoshop plugin will automatically increase the canvas to adapt to the best size.
Here are the corrected images.
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