In the majority of cases, professional sports photography is a branch of photojournalism, while amateur sports photography, such as photos of children playing association football, is a branch of vernacular photography.
The main application of professional sports photography is for editorial purposes; dedicated sports photographers usually work for newspapers, major wire agencies or dedicated sports magazines. However, sports photography is also used for advertising purposes both to build a brand and as well as to promote a sport in a way that cannot be accomplished by editorial means.
Equipment typically used for sports photography includes a digital single-lens reflex (DSLR) camera with high continuous shooting speeds and interchangeable lenses ranging from 14mm to 400mm or longer in focal length, depending on the type of sport. The proper lenses are very important as they allow the photographer to reach closer or farther as quickly as possible to keep up with the game play. Essential accessories include a monopod or tripod for stability and extra batteries. Longer focal length lenses are typically used to photograph action in sports such as football, while wide angle lenses can be used for sideline and close-up athlete photos.
The preferred camera bodies for modern sports photography have fast autofocus and high burst rates, typically 8 frames per second or faster. The current flagship sports cameras produced by Canon and Nikon are the Canon EOS-1D X and the Nikon D4S; these are popular in professional sports photography.
Different sports favor different lenses, but sports photography usually requires fast (wide aperture) telephoto lenses, with fast autofocus performance. Fast autofocus is needed to focus on movement, telephoto to get close to the action, and wide aperture for several reasons:
- The background is dramatically put out of focus due to a shallow depth of field, resulting in better subject isolation.
- The lenses can focus more quickly due to the increase in light entering the lens – important with fast-moving action.
- Faster shutter speeds can be used to freeze the action.
Extremely wide apertures (such as f/1.2 or f/1.4) are more rarely used, because at these apertures the depth of field is very shallow, which makes focusing more difficult and slows down autofocus. The main distinction is between outdoor sports and indoor sports – in outdoor sports the distances are greater and the light brighter, while in indoor sports the distances are lesser and the light dimmer. Accordingly, outdoor sports tend to have longer focal length long focus lenses with slower apertures, while indoor sports tend to have shorter lenses with faster apertures.
Both zoom and prime lenses are used; zoom lenses (generally in the 70–200, 75–300, 100–400 or 200-400 range) allow a greater range of framing; primes are faster, cheaper, lighter, and optically superior, but are more restricted in framing. As an example the Nikon AF-S NIKKOR 400mm f/2.8G ED VR AF lens and the Canon EF 300mm f/2.8L IS II USM lens are both fixed telephoto lenses which cannot zoom.
Apertures of f/2.8 or faster are most often used, though f/4 is also found, particularly on brighter days. Particularly visible are the Canon super telephoto lenses, whose distinctive white casing (to dissipate the sun's heat) is recognizable at many sporting events. Of these, the Canon 400mm f/2.8 is particularly recommended for field sports such as football.
Sports photographers may use remote cameras triggered by wireless shutter devices (i.e. Pocket Wizards) to photograph from places they could not otherwise stay, for example in an elevated position such as above a basketball basket, or to be in two places at once, i.e. at the start and the finish - such as at horse racing.
Location is often important for sports photography. At big events, professional photographers often shoot from VIP spots with the best views, usually as close to the action as possible. Most sports require the photographer to frame their images with speed and adjust camera settings spontaneously to prevent blurring or incorrect exposure. Some sports photography is also done from a distance to give the game a unique effect.
Shutter speed is critical to catching motion, thus sports photography is often done in shutter priority mode or manual. A frequent goal is to capture an instant with minimal blur, in which case a minimal shutter speed is desired, but in other cases a slower shutter speed is used so that blur is show, letting one see the motion, not simply the instant. A particular technique is panning, where the camera uses an intermediate shutter speed and pans with the subject, yielding a relatively sharp subject (particularly for faster subjects) and a background blurred in the direction of motion, yielding a sense of speed – compare speed lines.
ISO speed is often high (to allow faster shutter speeds) and may be left in auto.
Photos are often taken in burst mode to capture the best moment, sometimes in combination with JPEG rather than RAW shooting (JPEG files being smaller, these allow longer bursts).
While the vast majority of sports photography focuses on capturing a moment, possibly with some blur, the technique of strip photography is sometimes used to instead show motion over time. This is most prominent in a photo finish, but can also be used for other purposes, often yielding unusually distorted images.
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