Exercise Focal Lengths for cameras with variable focal lengths

For this exercise, you were asked to find a view which was open, yet at the same time, had some detail in the distance or in the middle of the view. It was a beautiful sunny day, so I chose to take a trip to Clevedon, just down the road. There is a beautiful beach and coast line with a great pier with lots of detail, which stretches out into the sea. This was perfect for this exercise.

Without moving, you had to take a sequence of photographs, all aimed in the same direction, with whatever range of lenses you have. In my case, I have a camera with a zoom lens, so I had to use my aperture settings for this exercise.You were asked to begin with the

I used my tripod for this exercise. I set myself up on the beach front and aimed my camera so the pier stretched across my frame, but was still very central.

For this exercise, I set my camera to the aperture mode. I began by taking two test photographs. The first Wide angle, the Second, Telephoto.

First Photograph:

Wide Angle

Image

Taken Using:

Aperture:F/3.1

Shutter Speed:1/1200 sec

ISO:64

Distance: Focal Length 5.0mm (equivalent to 30mm on a 35mm film camera)

Second Photograph:

Telephoto

Image

Taken Using:

Aperture:F/11

Shutter Speed:1/58 sec

ISO:64

Distance: Focal Length 42.9mm (equivalent to 252mm on a 35mm film camera)

As you can see, the wide angle photograph shows the entire beach and sky, yet the telephoto photograph singles out the pier.

I then photographed a sequence of photographs with various focal lengths and apertures. I began with Wide angle at F/3.1, then somewhere in the middle which was F/7.1, and then telephoto which is F/11 on my camera. I also included the photographs in the middle of the sequence to show how the photographs show the change in the subject’s movement.

Photograph One:

Wide angle

Image

Taken Using:

Aperture:F/3.1

Shutter Speed:1/1100 sec

ISO:64

Distance: Focal Length 5.0mm (equivalent to 30mm on a 35mm film camera)

Photograph Two:

Image

Taken Using:

Aperture:F/4.0

Shutter Speed:1/680sec

ISO:64

Distance: Focal Length 10.4mm (equivalent to 62mm on a 35mm film camera)

 Third Photograph:

Middle focal point

Image

Taken Using:

Aperture:F/7.1

Shutter Speed:1/220sec

ISO:64

Distance: Focal Length 7.6mm (equivalent to 45mm on a 35mm film camera)

Fourth Photograph:

Image

Taken Using:

Aperture:F/8.0

Shutter Speed:1/160 sec

ISO:64

Distance: Focal Length 12.3mm (equivalent to 73mm on a 35mm film camera)

Fifth Photograph:

Image

Taken Using:

Aperture:F/9.0

Shutter Speed:1/125 sec

ISO:64

Distance: Focal Length 17.1mm (equivalent to 101mm on a 35mm film camera)

Sixth Photograph:

Image

Taken Using:

Aperture:F/10

Shutter Speed:1/110 sec

ISO:64

Distance: Focal Length 23.6mm (equivalent to 139mm on a 35mm film camera)

Seventh Photograph:

Telephoto

Image

Taken Using:

Aperture:F/11

Shutter Speed:1/90 sec

ISO:64

Distance: Focal Length 33.0mm (equivalent to 194mm on a 35mm film camera)

Overall Opinion:

After looking at the photographs in a series, you are able to see that as the focal length gets longer, the angle of view closes in. The magnification also increases and you are able to see the detail in the pier, especially at aperture F/11 with 33.0mm focal length.

I really enjoyed this exercise as I was able to choose a fantastic view to shoot. Having an empty (ish) beach allowed me to play around with my camera settings before I managed to get it right and was able to shoot a clear empty wide angle view of the beach and then show the gradual change in focal lengths.

 

 

 

 

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