What is Shutter speed? 

Shutter speed or exposure time as it is also known is the length of time when the sensor inside the camera is exposed to light it is when the shutter of the camera is open

As you can see in the image above the speed of the shutter can greatly effect the outcome of the final image.

In the images that i had taken on a previous photo shoot you can see the massive change in the final look of the image. The second image that was taken on a shutter image speed of 4 second I created the pattern that you can see in that image by moving the lens of the camera in a certain pattern, the other image was taken on 1/8 of a second. Using slow shutter speed is one of my favorite techniques that in photography as you have unlimited possibilities that you can do.