This exercise looks at shutter speeds when the camera is fixed on a tripod and the image moves across the screen. I set the camera onto TV and was able to alter the speed of the shutter. I used a cable release to minimise movement from the camera body. I noticed that as the speed of the shutter increased, the aperture size increased.The background stayed sharp all the way through because the camera is mounted on a tripod.
1:2500 F4
At this speed (1:2500 F4) the image is very sharp and all movement is frozen.
1:1250 F5
The movement is beginning to slow. There is slight blurring on the spokes of the wheels.
1:800 F5.6
There is slight movement in this picture. The subject is still in focus.
1:500 F8
The subject's body is becoming motion blurred.The spokes are more blurred than at1:800
1:400 F8
This is the lowest shutter speed at which movement is sharply frozen. (1:400 F8)
1:250 F9
Some of this picture is sharp. Most is blurred.
1:125 F13
I think this picture has too much movement. The subject is now becoming blurred.
1:60 F16
This picture is really blurred now because the shutter is held open for a much longer period of time whilst the subject moves across the frame.
1:25 F25
This picture shows an increase of movement from the last picture. I would expect this to happen.
1:10 F25
This is the last shot I was able to take on my camera without the picture becoming a complete whiteout. I have seen this effect used to blur people out of the picture.
After completing this exercise, I studied the pictures. The relationship between the aperture and shutter speed is what I would expect. I was interested to see at what point I would get movement and how much there would be.In this set of pictures, my favourite composition is 1:250 f9. This gives a feeling of movement to the picture.
Next time I would take the pictures on a cloudy day. The bright sun has made the shadows strong and my subject had to ride into the sun causing her to squint.
