I remember many years ago I watched a video of David Leffel's
painting still life. A student was asking what kind of light
he uses for illumination. David said he uses the natural
north light. "If you do not have a north or east window
in you studio, you might have to move" David put it
in a humorous way to address the importance of the proper
Well, my north window doesn't help, because I only have
time at night to paint. I have to rely on artificial lights
for my paintings. I started with conventional tungsten light
and did some paintings. They look pretty good under the
light. However, at the next morning, I looked at my work
under natural daylight. My painting has completely changed.
The colors are way off. So I learned my lesson.
I tried many different bulbs and finally fine the best
solution: using color correcting light filters. They are
blue tinted transparencies and very easy to use. You simply
clip the filter on the reflector of your lamp, Voila! You
have created your own north light. If you think your light
still too yellow, you can double the filtering. You might
have to use a brighter light of course.
You may ask why I don't use fluorescent light to get a
cooler light. The major drop back is that the fluorescent
light does not have a continuous spectrum light like the
sun, tungsten and halogen lights. It would not give the
color accuracy of the pigment, especially high chroma colors.
The spectrum of a fluorescent light is discrete dominated
by the mercury spectrum, which only have four lines.
The filter has a strong heat damage threshold, so it is
absolutely safe to use with tungsten or halogen lights.
To prevent the bulb overheating, please leave an air gap
around the reflector.
If you want try my North Light Filter, please select the
size and click the button below