Posts tagged ‘florescent lamps’

September 13, 2013

Exercise: Tungsten and Florescent lighting

by Suzy Walker-Toye

The exercise on p151 is a follow on from the earlier colour balance exercise. It’s split into two parts – part one is essentially its a comparison between tungsten & daylight. I couldn’t find any tungsten environments in which to test this one, none of the lights in our house (and all my friends & family) were tungsten. Mainly everyone uses halogen now as they are much better for the environment so I think perhaps the course needs to be updated ;). I’ll leave this here as a place holder in case I’m able to find something before I finish the section.

The second part of the exercise is comparing different florescent bulbs. The first set below are of our friend Danbo again this time lit by a small florescent bulb. The second set are Danbo in my office light by the florescent overheads. The third set are the same images shot indoors, light by daylight (for comparison).

Its interesting to note that modern overhead florescent lights we have at work at very close in white balance to daylight. The florescent at home (top row) is much warmer but I was surprised to see that the incandescent white balanced looked the closest to the correct white balance!

The overal colour quality in the top two rows dont look as good as those shot in daylight because florescent lamps do not emit a full colour spectrum.

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