Project 30 Colour control

Colour control.

I chose a still life subject for this project. The main colour I chose to use for this project is red but there are two colours here red and green. The photo above is taken at F4 and 1/3 of a second. The camera was left set for automatic white balance. Here the colour temperature is 4200.

this is the next in the series, taken at 1/3 sec and f3.5 and the colour temperature is 4350.

Here we have 1/3 second F3.2. Colour temperature is 4600.

Here we have again 1/3 sec at f 2.8. Colour temperature is 4700.

This is the first of the shots underexposed at 1/3 second and f4.5 Colour temperature is 3950.

This is 1/3 second at f5.0. Colour temperature is again 3950? which is the first time that the temperature has not changed with the exposure.

1/3 second at f5.6. Colour temperature is 3900.

1/3 of a send at f6.3 again the colour temperature is 3900.

With the photos that have been gradually underexposed you can see the colour cooling. The red almost becomes violet. More blue becomes present with each shot.

Checking the info window in photo shop for the differences between the brightest and darkest shots on roughly the same place in each image the results were as follows;

Darkest Brightest

R 87 R 183

G 0 G 81

B 35. B 83

Its also interesting to note that the difference in depth of field in the series of photos. It shows the difference between focus and sharpness in a photograph. It is possible for a photo to be in focus but lack sharpness.