Showing posts with label Colour Temperature. Show all posts
Showing posts with label Colour Temperature. Show all posts

Friday, 13 August 2010

Judging Colour Temperature 2

Brief:
Take one photograph in full sunlight in the middle of the day, one in shade during the middle of the day, and one in sunlight when the sun is close to the horizon. In each case set the camera's white balance to 'daylight', then 'shade' and finally 'auto'.


Full sunlight
WB: Fine weather

WB: Shade

WB: Auto

Shade
WB: Fine weather

WB: Shade

WB: Auto

Sun close to the horizon
WB: Fine weather

WB: Shade

WB: Auto


What have I learned?
As expected, the image taken using the shade setting is very warm (too warm in full sunlight). I was interested to see the differences between the fine weather and auto white balance settings. In all three cases, the auto setting gives a much cooler result. This might just be a characteristic of the camera, but it's certainly worth knowing how these settings will affect my shots.

Saturday, 26 June 2010

Judging Colour Temperature 1

Brief:
Take three photographs, one in full sunlight in the middle of the day, one in shade during the middle of the day, and one in sunlight when the sun is close to the horizon. Make sure the camera's white balance is set to 'daylight'.

Full sunlight

70mm, ISO 100, f/5.6 (Aperture priority), 1/500, WB: Fine weather
RGB: 93, 112, 32

Shade

70mm, ISO 100, f/5.6 (Aperture priority), 1/40, WB: Fine weather
RGB: 123, 137, 85

Sun close to the horizon


70mm, ISO 100, f/5.6 (Aperture priority), 1/250, WB: Fine weather
RGB: 99, 101, 55

What have I learned?
Apart from an obvious difference in brightness, I was not aware of any discernible differences in colour because the human eye is readily adaptable. However, where the camera is prevented from making the necessary adjustments for changes in colour temperature, the differences are immediately obvious.