Using Exposure Value (EV)

Many hobby film makers may say that the default ‘auto’ settings are as good as gets for the daily use and they will stay happy with this. Others may like to try to get more out of the tiny camcorder by adjusting the parameters of DIMIKA. The configuration software offers many options to adjust the image and video quality. One of this is the ‘Explosure Value’. But how does it work?

The DIMIKA is calibrated to capture video scenes with a mix of light and dark areas and expose the images correctly. This works in most cases because normally videos tend to have brighter areas like the sky and darker areas like shadows etc. With the default (EV=0.0), the DIMIKA chooses a mid-level brightness between the brightest and darkest areas.

 

EV-SETTINGS

In situation like skiing, when all of the scene is very bright and snowy white, it could  cause problems. Same if the scene is very dark. For very bright scenes, like at the snow on a sunny day, the sensor allocates the very bright part as mid-level. This makes the snow in this image a little bit grey because there is too much ‘white’ in the image. The EV adjustment helps to improve this by setting the DIMIKA to expose at a higher or lower setting. For very bright scenes like the snow with sunshine, the film maker or photographer can set an EV value as a positive number EV +1.0 or EV +2.0. For very dark scenes, he or she may choose a negative EV number.

 

EV-SETTINGS

DIMIKA Configutartion Software 5.4

Some examples:

BEACH AGAINST THE SUN – EV +2.0

SNOWY LANDSCAPE – EV +1.0

SUNSET – EV +1.0

DARK GREEN FORREST – EV -1.0

NIGHT – EV +1.0 or EV +2.0

 

This examples based on personal experience and may not be the optimal setting for everybody. Try different values for different scenes and situations to find out which are the best settings for you.