Wednesday, 21 September 2011

Exercise - Judging colour temperature 1

I have always taken photos in RAW + JPEG The camera I used is Canon 450D. When I open Raw file in CS3, the colour temperature set by the camera "Day light" is different to the "Day light" in raw file converter. It seems the "Day light" in the camera is cooler (about 5000K) than the "Day light" in raw file software (about 5500K)
I like the "Day light" colour temperature set by the camera more. The one set by CS3 software seems a little bit on the orange (warm) side.

I took a few photos of Graham's face, a few in the early afternoon under the Sun with front light and side light, one in the shade by standing under the tree or waiting for the Sun to go behind the cloud and another one in the late afternoon at around 6.45pm when the Sun was at the horizontal. I chose that time because I checked the MET office and found the Sunset was at 7pm.

1.Full sunlight early afternoon


This image has quite harsh shadow on the face. It makes the photo high contrast. some area on the face and t-shirt have overexposed.


2. In shade during the same time (early afternoon)

This image has lower contrast with less harsh shadow on the face. Overall the face looks somewhat under expose.


3. At sunlight when the Sun was about to set (very close to horizon)


This image looks similar to the one taken under the shade but slightly better. It has a bit more red in the light.

During taking photos, the eyes adjusted to the ambient light and could not see much different between the one in shade and the one at Sun set. All I could tell at the time of shooting was that there was not much light while the one taken directly under the Sun had too much light that it's difficult to get photo taken with properly exposed.

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