I have been an enthusiastic photographer for many years, using SLRs with a particular interest in very wide angle photography. I have used full-frame fish-eye lenses (Sigma 16mm on OM2), a rectilinear fish-eye lens (Sigma 18mm on OM2), and front element fish-eye converters on Minolta Dimage Hi (Raynox DCR-FE180) and Nikon 8800 (Nikon FC-E9).
All these are now rendered obsolete by the Nikon 10.5mm full-frame fish-eye lens, which even enables you to make 360 degree spherical panoramas with only eight overlapping exposures, using my new Nodal Ninja panoramic tripod head.
My work is now entirely digital. Until recently I used a Nikon 8800: smaller and more portable than an SLR. Now my Nikon D40x gives excellent results both with the standard (zoom) lens, and the 70-300mm Nikkor.
I'm very pleased indeed with my new Tokina 11-16mm f2.8 wide-angle zoom (thanks, Ken Rockwell for recommending this so highly). For extreme portability, the Canon Digital Ixus 870 IS is great, and has made excellent mosaics of several pictures.
Some of my photographs here were taken with a Minolta Dimage 7Hi, and many with the Nikon 8800. There are more motor racing photos than any other type: they are from original 35mm transparencies taken with a Pentax S1a or an Olympus OM2. Originally scanned at 2,400dpi using a flatbed scanner with a transparency adapter, they have now been re-photographed using my Nikon and a Nikkor 105mm macro lens in a home-made zoomable rig, giving much better quality.
My (very under-used) splendid Meade ETX-90 telescope is finally producing photographs, using my Canon compact camera (870is), and connecting the two with a Skywatcher Universal Camera Adapter:
I use a 24" iMac with a Canon s900 inkjet printer.