Blur to Convey Motion

xpet_0026_0001xx_a4.jpg

How do I decide whether to opt for a fast or a slow shutter speed to convey motion? Most often, it is the subject and the way it is moving which determines my choice. If it has to be a grab shot then I will go with a fast shutter speed.

phot_0045_0022a_a4.jpg

But, if the animal is moving parallel to the sensor then I may decide to pan the camera with a much slower shutter speed. If you pan before taking the shot and continue after releasing the shutter, most of the animal will be relatively sharp against a streaked background (it will also blur all vertical movement of legs as well). With a line of running animals, you have the chance to take several shots and even vary the technique.

 mam_657.jpg

Another way to convey movement is to go for a very slow shutter speed to deliberately depict a bird flapping its wings or a mammal shaking its head as blurred streaks of motion.

 mam_0007_0880.jpg

Outside lights attract night flying insects and their random flight paths appear as streaks when using a slow shutter speed. In the Pantanal I noticed bats were flying in to grab moths attracted to light. I selected a 1-second exposure but, as I was using film, I thought it prudent to bracket. Three weeks later I found half the exposures were fine but only a few showed a bat with outstretched wings – but that was good enough for me.

phot_0273_0002_a4.jpg

Often these shots are impossible to compose, but they are fun to try -- especially if you have plenty of time to experiment and refine your technique.  Why not give it a go? When taking an animal running along the ground I don't give it a tight frame, and I aim to leave more space in front than behind it (see dog at the top of this post).

Comments

Post new comment

Pixiq on Facebook

Join the 10089 Pixiq fans on Facebook

Share

  • Share

Subscribe

Get weekly updates from Pixiq. Short, sweet, and always interesting.