18-135mm zoom lens, Nikon D80
This project was carried out in a similar fashion to P4 but this time
"tracking" the subject as they passed by.
Once again starting at a 1 second exposure and each time decreasing the
exposure time and compensating with aperture setting and ISO to allow for a
correct & constant exposure.
Panning at very long shutter speeds (1sec, 1/2sec) is quite difficult
because when the mirror flips out of the way you are, effectively, blind. I
quickly learned that it was smart to look through both eyes and see
"through" the camera in order to keep an even track on the subject. These
are the shutter speeds used in each of the ten images;
1. 1sec, f22, iso 100
2. 1/2sec, f18, iso 100
3. 1/4sec, f13, iso 100
4. 1/8sec, f9, iso 100
5. 1/15sec, f6.3, iso 100
6. 1/30sec, f4, iso 100
7. 1/60sec, f5.6, iso 400
8. 1/125sec, f4, iso 400
9. 1/250sec, f3.5, iso 640
10. 1/500sec, f3.5, iso 1250
At 1sec (1) shutter speed the image is quite easily discernable as a horse &
rider though the background is just a series of streaks.
At 1/2sec (2) the rider is already in fairly sharp focus but the horse's
legs going backwards & forwards are moving, relatively, much faster, as is
the horse's nose as his head goes up & down and are therefore still blurred.
Only by 1/15sec (5) is Linda quite sharp, Jim reasonably so, but his legs
are still blurred with movement.
At 1/30sec (6) both Jim & Linda are quite sharp with only the horse's feet
still showing movement blur, and the background of course.
At 1/60sec & 1/125sec (7,8) almost everything is in sharp focus, only Jim's
left/front foot shows some movement blur as he lifts it off the ground.
At 1/250sec (9) they could almost be standing still were it not for a little
movement at the very bottom of the feet, and at 1/500sec (10) everything,
including the background, is frozen.
Article on shutter speeds