If you want to emphasise the sense of speed in a sports image or just want to give a shot an abstract twist, have a go at shooting a zoom burst.
You need a zoom lens for this technique to work and one that has a longer range, such as the Tamron 18-270mm, will mean you can create a more even effect that has longer streaks. A tripod is a must as you'll be using longer shutter speeds and if action shots are what you're shooting, bring along your flashgun as a bust of flash will freeze your subject and add sharpness to the shot.
Key Points To Remember:
Get the zoom right - too obvious and you won't recognise the subject, but if you don't zoom enough, the effect won't be visible.
Three steps - open the shutter, wait for half or even three-quarters of the exposure to finish then in one fluid movement, zoom out.
For speed - zoom out then start a short exposure while moving through the zoom.
Choose the right settings - use small apertures, slow shutter speeds and low ISOs.
The above example of a zoom burst was shot by David Pritchard on day 46 of his 365-photo challenge. David cropped the composition, as you will only ever get the vanishing point in the centre of a photo. If he was to shoot the image again David said he'd include a set of bicycle handlebars which would add foreground interest and emphasise the sense of speed within the image.