Comet Ikeya-Zhang April 10, 2002 4-inch AP Traveler refractor at f/4.5 Fujichrome Provia 400F slide film 10 minute exposure, guided on stars not comet. North is more or less up (toward tail end) in vertical format shot. But image could be turned 90° CW or CCW. Taken from home in Alberta. Comet low and in not so bright sky. Image processed for boosted contrast. Image anti-vignetted with digital mask to even out background, but corners still dark. Still, image improved greatly from washed out original.