Thursday 25 August 2011

TAOP - Tungsten and fluorescent lighting.

Outline: Part 1 is to take three photographs of an interior lit by tungsten lamps where the interior and exterior are visible. Use white balance settings: Auto, daylight and tungsten.
Part 2 is to photograph two interiors lit by fluorescent lamps using white balance settings: Auto, fluorescent and alternative fluorescent.

I took some meter readings around the room before starting part 1 of this exercise. ISO 200, aperture F4.6 on aperture priority and white balance set to auto. With the lighting as in the photos below and the room lit with just one tungsten lamp the fastest shutter speed was near to the lamp reading 1/50. The centre of the room was 1"3 and the darkest corner of the room showed as 15". I also took a reading in the window which surprisingly came out as 30".
Part 1 was easy enough to complete and the images below are what I was able to take.

Auto white balance

Daylight white balance

Tungsten white balance
The auto setting, once again seems to be the best of both other settings. In this image the overall photo has a yellowy glow to it but it still retains a somewhat natural colouring. The daylight setting casts an orange glow over the interior, and make the outside lighting look more grey and overpowered. The tungsten setting works the best in this exercise. The outside light still looks pure blue and the inside seems very neutral and more 'white' than the other two images.


I am unable to complete part two of this exercise. This is because I cant find anyone that actually has any fluorescent lighting in their homes.

Conclusion: As I said above, I was surprised completing the meter readings, where the shutter speed was slowest in the window. I expected the darkest area of the room to produce the slowest reading so that was interesting to learn.
The white balance exercise was also good to complete as it has broadened my knowledge and experience of using the white balance setting and the outcomes it produces in different conditions.

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