Daylight Balance
Most film available on the market today is Daylight Balanced. Unless the film specifically states that it is balanced for other lighting conditions, it will probably be designed for daylight.
Since daylight balanced bulbs are being used and the subject is neutral in color and tone, white balance isn't a problem. When shooting into the white light tent, exposure compensation has to be used to keep the pictures from being two dark.
daylight balanced xenon flashtube. It can also produce exposure times from 1/100 to 1/10,000 second. Step Tablets A sensitometer is set up to make only one exposure.
In the studio I sometimes use a couple of 250 watt blue lights (daylight balanced) in 10" reflectors to light up a much larger piece of matte board. In this case I will position the matte board and lamps well behind the subject.
Might be nice to see an addition to this article looking at low wattage'Cool' flourescent (spelling?) daylight balanced lighting. I use a couple of stand mounted 500w (equivelent) always on lights balanced 5500k and generally get good results.
With film you can buy "daylight balanced film" for shooting outdoors or "tungsten balanced film" for shooting indoors under normal domestic lighting (not fluorescents!). If you use daylight film under tungsten light the images will be very yellow.
There are also more extreme colour correction filters for using daylight balanced film with tungsten light and tungsten balanced film with daylight. I actually have information on this topic on a different page - my flash photography article.
Our Dynamic Range measurement system involves shooting a calibrated Stouffer Step Wedge (13 stops total range) which is backlit using a daylight balanced lamp (98 CRI).
Daylight balanced films do a good job of recording colors in daylight under most conditions. Color balance is set by the film manufacturer of films. We use filters to further adjust colors if necessary. Digital camera sensors work differently.
I like the color temperature of the YS-120 (5100°K which is very close to daylight balance) and the fact that they put out a nice even wide beam and a lot of light energy for such a small strobe (UWGN = 36).
The Vu-Pro Cool-V Fluorescent Lighting Kit is a new take on the old "hot light" kits. Using daylight balanced output fluorescent bulbs this lighting stays much cooler than the older tungsten lights and does not require color correction filters.
This preserves the natural colours created by the setting sun - it's the same as shooting with daylight balanced film. You may also need to enable the long exposure noise reduction function.
For example, the dark blue B12 Nikon filter makes it possible to use daylight balanced film with tungsten studio lamps, changing the light temperature from 3200K to 5500K.
CowboyStudio 40 Watt Daylight Balanced Compact Fluorescent Light Bulb ...
You won’t be able to control color balance with it—although it is designed for daylight balance, just like your flash. And you can’t collapse it. But it only costs $15, and it diffuses the light. ‘Nuff said.
The Great Yellow God Speaks - Kodak's filter info. Bear in mind that for all intents and purposes, a digicam's CCD is equivalent to daylight balanced color transparency film.
DPFWIW's Filters Article - Doesn't cover color correction filters.
Color Conversion. Raises the color temperature, causing a 3200 K tungsten-lit scene to appear to be daylight lit, approximately 5500 K. This allows use of a daylight balanced film with tungsten lighting.
80B
blue
3 ...
From a single light source with a straight daylight balance, you could easily move through experimentation to create a very different but very pleasing portrait.
Overview ...
 See also: Balance, Light, Daylight, Camera, Image
|
