Thursday, 18 August 2011

Exercise - Measuring Exposure 1

The object of this part of the exercise was to produce some photographs that are  either lighter or darker than normal.


Inchmahone Abbey ISO 125, f/13, 90 mm efl, 1/60 sec

This is deliberately taken lighter then usual to allow you to see detail on the pillars in the background , though the archway.

Light though the Trees.  ISO 125, f/3.1, 75 mm efl, 1/100 sec

Here the image was lightened to enhance the look of sunlight pouring down over the trees, and also to allow some detail to show though in the trunks.

Alice. ISO 400, f/5.6, 112 mm efl, 1/50 sec

This image was taken in very poor light conditions (needed high ISO), but I liked her expression, and felt that it warranted a high key approach to emphasise the already pale skin and fair hair.

Old Railway Cars. ISO 320, f/4.5, 42 mm efl, 1/30 sec.

This very broken down old railway car was awaiting repair at the Bo'ness and Kinneil Railway Museum. I wanted to be able to see some of the detail under the carriage as well as the colours, so increased the exposure to allow this.


Unwanted?  ISO 100, f/3.8, 34 mm efl, 1/30 sec.

This is in direct contrast to the image above. Here I wanted to show the darkness and decay of the whole carriage, and show how difficult it was to see things in the museum.

Doune Castle. ISO 160, f/4.9, 50 mm efl, 1/80 sec.

This contrasts with the first image in the 'light' section. Here I also wanted to show the view through the archway, but it was drenched in sun and very bright compared with the inside of the castle. I therefore deliberately decreased the exposure. Even so the scene in the background was too burnt out and I had to bring the colours back by adding a second layer in photoshop to the background only, erasing it over the stones to avoid darkening them even more.

Tailfin. ISO 100, f/13, 28mm efl, 1/640 sec.

This was taken from directly under the plane. I wanted to show the shape of the tail silhouetted against the swirling clouds. A lighter exposure would have shown the detail in the tail, but lost the drama in the clouds.

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