Sunday, 8 May 2011

Exercise: Real and implied triangles

The brief is to produce two sets of triangular compositions, one using 'real' triangles, the other making 'implied' triangles.


The triangles:  ISO 200  285mm f5.6 1/400
The above photograph is that of a detail from a medieval uniform as used by re-enactors.  It attracted me due to the triangle within triangle shape.  As this was a flat subject, I used fully open aperture to ensure I had a good shutter speed to ensure sharpness.

Cressing Barn:  ISO 200 16mm f16 1/30
A corner of one of the barns in Cressing Temple was used to illustrate the creation of a triangle through verticals converging towards the top of the frame.  I used an extreme wide angle to exagerate this perspective effect, ensuring that all parts of the photograph were sharp by using a small aperture around the "sweet spot" for the lens.

Cathedral walls:  ISO 100  28mm  f13  1/80
Here I used an inner corner of the cathedral to make an inverted triangle in the sky.  The walls of the building converging outwards enabling this effect to be captured.  In order to exagerate the effect, a wide angle lens was used and a medium aperture, here ensuring sharpness.


Weights 1:  ISO 400 58mm f6.3 1/40
A quick shot of the weights I use in weighing out ingredients for cooking, the heavieast weight defining the pinnacle of the triangle.

Weights 2:  ISO 400 105mm  f7.1  1/25
Here I have re-arranged the weights inverting the triangle giving the apex at the bottom of the frame.

Colchester Waits:  ISO 3200  35mm  f4.5   1/50
A "Shawm Band" which was performing at the Medieval fair in Cressing Temple agreed to pose for me to help me create triangles.  Here I wanted to create a double triangle, one, inverted, constructed with the faces of the performers and the second, using the face of the seated performer as the apex and then expanding outwards using the feet as the base.

It was quite dark inside the barn, so I used a high ISO and remained on auto colour balance, however I had to tweak it in Lightroom as it was still overly warm.

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