ABSTRACT
A survey of the world's nature photographers in general, and wildlife photographers particularly, would loudly shout that an enormous majority use either Canon or Nikon camera systems. Both Nikon and Canon offer enormous selections of "ordinary" lenses, but also offer wide selections of special-purpose lenses. They both offer wide arrays of accessories tailored for specialized photographic pursuits. Canon and Nikon certainly attract the majority of nature photographers, but there are other worthy brands offering acceptable equipment at lower cost and lighter systems that are easier to carry. Canon and Nikon both offer versions of "tilt/shift" lenses. These clever lens designs allow the user to change the physical position of the front elements of the lens with respect to the rear elements of the lens, allowing enormous depths of field even at the largest apertures. Wildlife shooters and their landscape shooting friends regularly find the unlimited depths of field to be invaluable.
