19.6.13

Primary and secondary colours


Although this is a seemingly small task, these images were taken over several months. I have enjoyed taking my time over this unit during relaxing walks, idling away the pressures of work and other studies. I have taken many images; whenever I have spotted a colour which may match the given spectrum and have uploaded the six which I feel show the closest match.


 
Putting the lessons learned on controlling strength into practice, I used bracketed shots, from -1 to +1 for each image and chose the best match once processed. The blue plant pots and yellow flower were both half a stop underexposed, whereas the orange gas sign was overexposed in order to make the colour less intense.
I discovered a good mix of natural sources and manmade subjects.

Control the strength of a colour


For this experiment I used a green garage door and my red sofa. For both subjects, I used the AV function on my camera, allowing for automatic shutter speed setting and varied the exposure compensation gradually from -2 to +2.
 
 

 
The images gradually change from very dark to very light shades of green and red as exposure increases. At the lighter end of the scale, both hues appear as pastel shades, the red taking on more of the qualities of pink. This also has an effect on the strength of the colours. The colours in both images appear to be most intense at half a stop below average exposure and seem gradually less intense as they become darker and lighter.  This would be something to bear in mind when attempting to show strong, bold colours in my photography.