Exercise: Focal lengths for cameras with variable focal lengths (zoom)

The purpose of this exercise is to demonstrate the impact different focal lengths can have on shots of the same image. We were required to take a number of photographs of the same image, but using different focal lengths on the lens.  My lens range is 24 - 105mm, so I took a photograph at the widest angel setting / focal length of 24mm, one at the mid range about 45mm and then a telephoto @ 105mm.

Photograph one 24mm wide angel.

This photograph uses the smallest focal length and gives us the widest angel of view. This angel captures the wide expansive skyline, hills on the distant horizon and the large expanse of foreground.

Photograph two 45mm standard view

I decided on 45mm as the mid range standard view point on my lens.  Here the hills in the background are more noticeable. The foreground decreases and the bee hives become closer. After viewing this on the monitor, iam more aware of the "long white cloud" - the Maori name for New Zealand is Aotearoa which means the land of the long white cloud.

Photograph three

The long white cloud has disappeared into the top of the frame, and the hills in the background are much more prominant (with the naked eye, they have a 3-D effect, on this picture though they are flat). The bee hive at the forefront is now the dominating feature and the foreground has reduced dramatically.

It has been a day or two since I took the above photographs, and I wanted to re-cap on the intention behind this exercise - basically to consolidate a few points. 

• we have a horizontal gaze which focuses sharply in the middle to vaguely across a wide angel (oval shaped) with our peripheral vision (p 46 of the course materials Photography 1 The Art of Photography). 
• when we use a standard focal length lens we get a similar view as with the unaided eye - albeit sharper across the whole image (in my opinion) not just in the middle as with the unaided eye.
• a telephoto lens, draws the image closer - however, this is not the same thing as moving the camera closer to the subject. As the focal length changes, the character of the image changes, as you can see, with Photograph one, the smallest focal length of 24mm,  gives us the widest angel of view - thereby capturing the distant hills and the wide expansive skyline. In contrast, the narrowest angel of view is captured using the telephoto focal length of 105m. This magnifies the bee hives and draws them closer - the crux is the angel of view narrows as the focal length increases.

The next exercise, focuses on "moving" towards the subject to explore the effect of focal lengths.