Care must be taken by the photographer to not include their feet, tripod legs or the brim of a baseball cap. Sun flare can also be a problem, unless the photographer wishes to include it. In a forest scene, I generally block the sun by using an overhanging tree branch, which also helps to frame the scene.
At times, I purposely include my shadow. In one instance, I located it between two parallel tree shadows, leading the viewers’ eyes into the photo.
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A fish-eye lens is basically an ultra-wide-angle lens that covers from 100 to 180 degrees and bends light rays to produce intense visual distortions.
Objects closer to the lens appear larger than life, while those near the edge or circumference, seem more distant and are curved.
The term "fish-eye," dating back to 1906 and attributed to American physicist and inventor Robert W. Wood, is based on the panorama that a fish supposedly views.
A common, non-photographic use for fish-eye lenses is found in doors of motel rooms and apartments, as it allows the viewer to see down the hallway as well as visitors who might be shorter.
- The sale of fish-eye and other extreme wide-angle lenses has increased in recent years as the current generation of photographers looks for ways to extend the vision of digital cameras.