I found this exercise really difficult. I have found my Canon EF 24-105mm f/4 IS USM lens to be extremely sharp even when wide open at f/4.0. Finding a subject that was able to have just part of the image in crisp focus and the remaining areas slightly blurred and also being majority in focus when the aperture is stepped down, was difficult. I decided on these step and stone railings in Cambridge. I'm not totally convinced this has worked and would have liked to have tried something different.
Photograph 1:
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EF24-105mm f4/ L IS USM lens, 105mm, f/4.0, 1/125s, ISO100
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Photograph 2:
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| EF24-105mm f4/ L IS USM lens, 105mm, f/8.0, 1/100s, ISO320 |
Photograph 3:
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| EF24-105mm f4/ L IS USM lens, 105mm, f/14.0, 1/100s, ISO1000 |
Photograph 4:
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| EF24-105mm f4/ L IS USM lens, 105mm, f/22.0, 1/100s, ISO2500 |
You can see by the third photograph (f/14.0) the image is becoming more sharp and the majority is in focus. The Cambridge University 'Main Entrance sign' is becoming more in focus. This exercise taught me a lot about setting up the shot and deciding what it is I want from the finished photograph.
