Exercise 32 - Judging Colour Temperature 2

What: The main brief of this exercise was to take similar so that colour temperature could be examined and what happens to daylight in certain conditions
Where: In the garden
When: Just before noon on a sunny day, in shade and then at sunset
How: The exercise followed on from exercise 31 and required that I photograph the same scene for a then a further 9 photographs where the camera settings would also be adjusted for colour temperature.

Previous experience working with my camera and its white balance meant that I was at least mildly familiar with the use of colour temperature and how to adjust it within the camera. I knew that changing the colour temperature would make the camera sensor more sensitive to the colouration of the light and that in certain conditions the image taken could appear to be either cold or warm.
In the run up to doing this exercise I watched the colours around me to see if I could start to see the differences in the lighting conditions and colours.

I followed on from exercise 31 and photographed the same scene but this time I changed the cameras colour temperature setting from daylight to shade and then automatic

Direct Sunlight – Daylight WB
D80,Aperture f/8, Shutter Speed 1/2000 sec, ISO 1000, 70mm (35mm equivalent 105mm), Pattern Metering Mode, Daylight White Balance, Hand Held, 18-70 lens



Direct Sunlight – Shade WB
D80,Aperture f/8, Shutter Speed 1/1500 sec, ISO 1000, 70mm (35mm equivalent 105mm), Pattern Metering Mode, Shade White Balance, Hand Held, 18-70 lens



Direct Sunlight – Automatic WB
D80,Aperture f/8, Shutter Speed 1/2000 sec, ISO 1000, 70mm (35mm equivalent 105mm), Pattern Metering Mode, Auto White Balance, Hand Held, 18-70 lens



Shade – Daylight WB
D80,Aperture f/8, Shutter Speed 1/180 sec, ISO 1000, 70mm (35mm equivalent 105mm), Pattern Metering Mode, Daylight White Balance, Hand Held, 18-70 lens



Shade – Shade WB
D80,Aperture f/8, Shutter Speed 1/180 sec, ISO 1000, 70mm (35mm equivalent 105mm), Pattern Metering Mode, Daylight White Balance, Hand Held, 18-70 lens



Shade – Automatic WB
D80,Aperture f/8, Shutter Speed 1/180 sec, ISO 1000, 70mm (35mm equivalent 105mm), Pattern Metering Mode, Auto White Balance, Hand Held, 18-70 lens



Sun close to the horizon – Daylight WB
D80,Aperture f/8, Shutter Speed 1/125 sec, ISO 1000, 70mm (35mm equivalent 105mm), Pattern Metering Mode, Daylight White Balance, Hand Held, 18-70 lens



Sun close to the horizon – Shade WB
D80,Aperture f/8, Shutter Speed 1/125 sec, ISO 1000, 70mm (35mm equivalent 105mm), Pattern Metering Mode, Shade White Balance, Hand Held, 18-70 lens



Sun close to the horizon – Automatic WB
D80,Aperture f/8, Shutter Speed 1/125 sec, ISO 1000, 70mm (35mm equivalent 105mm), Pattern Metering Mode, Auto White Balance, Hand Held, 18-70 lens




I was really surprised to see the difference in colour temperature between the three settings and I very surprised to see how much the temperature changed from cool to warm. In some cases the cooler blue was my preferred choice of colour temperature, but in others I preferred the warmer orange. I was also surprised to see how much that the Auto setting differed; until now I was under the impression that it would adjust accordingly and “correct” the colour temperature rather than just choose the colour temperature that it thought was most appropriate, I will be much more aware of what affects this will have when I used Auto White Balance rather than adjusting by my own judgment.

Certainly when shooting in RAW format this can be changed to a certain extent within the computer but where I sometime do not have this control, i.e. on film or shooting in TIFF or JPEG then I will have to examine the colour of the daylight to ensure that the colours are photographed as I want them and that if I want to adjust them then I will have to use coloured filters.

Exercise 31 - Judging Colour Temperature 1

What: The main brief of this exercise was to take similar so that colour temperature could be examined and what happens to daylight in certain conditions
Where: In the garden
When: Just before noon on a sunny day, in shade and then at sunset
How: The exercise asked for 3 photographs of the same object when the lighting conditions were as set in the exercise (Direct Sunlight, Shade and Close to the Horizon)
Previous experience working with camera sensitivity speed meant that I was at least mildly familiar with the use of colour temperature and how to adjust it within the camera. I knew that changing the colour temperature would make the camera sensor more sensitive to the colouration of the light and that in certain conditions the image taken could appear to be either cold or warm.
In the run up to doing this exercise I watched the colours around me to see if I could start to see the differences in the lighting conditions and colours,

I started with the first exercise and with camera colour temperature set at daylight I took the following shots

Direct Sunlight
D80,Aperture f/8, Shutter Speed 1/2000 sec, ISO 1000, 70mm (35mm equivalent 105mm), Pattern Metering Mode, Daylight White Balance, Hand Held, 18-70 lens



Shade
D80,Aperture f/8, Shutter Speed 1/180 sec, ISO 1000, 70mm (35mm equivalent 105mm), Pattern Metering Mode, Daylight White Balance, Hand Held, 18-70 lens



Sun close to the horizon
D80,Aperture f/8, Shutter Speed 1/125 sec, ISO 1000, 70mm (35mm equivalent 105mm), Pattern Metering Mode, Daylight White Balance, Hand Held, 18-70 lens






Straight away I noted that the shutter speed differed to each lighting condition and I could also see that the table and the plastic lime had differing colourations in direct sunlight, shade and sunset

I could also see that under differing lighting conditions the same setup could appear either cold as it had a bluer hue to it or warm where it had an orange/red hue to it. This could be either a help or a hindrance when taking photographs as the colour temperature may have to be adjusted to compensate for the colour temperature of natural light.