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Adjusting the balance of light

Adjusting the balance of light

N0000056-0001Morning or evening, cloudy or clear, fluorescent or bulb lighting – different shooting conditions create different color temperatures.
Color temperature can be adjusted with digital cameras on the camera itself, but with film cameras this same adjustment must be done with color filters.
Color filters are transformed with the new Color Filter Series from HOYA
HOYA has created a wratten number color filter series with an exceptional quality of glass that had been difficult to obtain up till now. The filter characteristics in the new series have slightly changed making the variations in color temperature and easier to understand.

There will be some additional changes in the new series.
The way we label the filters has been changed
Q: How have the filter names changed?
A: The naming convention has changed to better distinguish the color temperature variations of each filter (mired value).
The warmer color filters are denoted as ‘Wxx’ and cooler filters are referred to as ‘Cxx’.

Amber Warming Series
The Amber Warming Filters corrects any blue cast and adds an amber warmth to photos. This filter enhances the color temperature by adding a red/orange tint to the picture. The Amber Warming filter which lowers the mired value by 100 is labeled W10 in our new labeling system.
Our lineup includes filters which change the color temperature by 20, 40, 100 and 120 mired value increments. The higher the mired value, the warmer the filter color temperature becomes.


Blue Cooling Series
Our blue cooling filters are used to balance out any reddish orange hues. These filters lower the overall color temperature value and are generally used to adjust the white balance when shooting in tungsten or fluorescent lighting. The 120 mired value reduction in color temperature is now referred to as the C12 filter.
There are 4 incremental variations in cooling filters offered: 20, 40, 80 and 120 mired values. The lower the mired value, the cooler/more blue the hue will become.
Please refer to the table in the upper right hand side of this page to find the equivalent conventional filters. Click to enlarge.