Exercise: Control the strength of a colour

So onward into part three, colour.

I am really looking forward to this part of the course. Having given most art related study at school a pretty wide berth, my understanding of colour is non-existent (just ask my wide when it comes to choosing paint colours at home!). In photography terms, this is possibly best evidenced by my natural gravitation towards black and white or simpler compositions in colour terms.

This first exercise looks at the strength of colour, the five shots below were taken with 1/2 stop intervals, the images were JPEG format taken straight from the camera with no post processing. All the photos were take with the shutter speed of 1/10 and ISO 800 and a fixed focal length of 50mm (using a 50mm prime lens).

Aperture f4

Aperture f4.5

Aperture f5.6

Aperture f6.7

Aperture f8

The transition through the shots is interesting. On initial inspection there appears to be a number of aspects changing from one frame to the next. Having then looked at the images in a bit more isolation to my eye it is the brightness that it most obviously altered, the actual colour saturation seems quite constant. Initially the latter three (‘darker’) shots (f5.6, f6.3 and f8) appear more saturated but when all the shots are looked at as individual frames this was actually true.

One thing that really stuck out was the histogram view of each photo. I suspect it is very rare I’ve taken photos containing a single colour but to see the three peaks of red, green and blue in the combined view in Photoshop was fascinating.

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