We already know about White Balance, a phrase that can be found close to menus within our digital digital slr. Understand the concept of white balance, as well as see how to manage the appropriate function regarding the camera allows us to reduce quality very own images.
All emanates from the fact that the strategy for interpreting the colours of their digital cameras is unlike that in the human cornea. Change the sensitivity and therefore the interpretation.
The light illuminating the scene we desire to take may not be the same: sunlight, incandescent bulb, neon lights and the like. But the same 'sunlight' and changes a lot depending around the time of day, season and climate conditions. There may be the dominant color temperatures (for example in the late afternoon), or cold, so the picture will show a bigger load of shades of yellow or blue.
Even using the film
Professional photographers and enthusiasts know that even the highest the film . had been this condition. The resolved (by choosing the the best option film with a given light) with encounter or through an instrument of measurement of the 'color temperature', the termocolorimetro.
Sensors in digital cameras are focused on the measurement of color temperature and white stabilize. Try, ie, to produce a pure white image and, consequently, correct tints. If the white is a share of green - 'think' the camera - this will be repeated on the other half colors for this image, in which means you need to substract one share associated with whole contemplate.
Too exhausting? Do not worry, in most shooting situations is the digital camera to deal with, the automated White Balance and provide images faithful to the topic.
But it isn't always which means that. Consider, for example, to an extension where are actually different regarding illumination: a ray of sunlight that filters through the window, a table lamp, a halogen lamp, for instance. It 's possible that in a circumstance such as this crisis goes on for the automated white balance. The camera will not be able to give us back images game the scene.
The more sophisticated digital cameras (not just single lens reflex cameras, but also semi-professional compact cameras - the cameras so-called 'prosumers' - also allow manual adjustment of white equalize. How it works? Just point difficulties on a sheet of paper white spot in the light environment in which we plan take our picture. the unit will adjust so all the colors.
For the most accurate exist, sometimes, also the possibility to modify the balance point of White also through a scale of color temperature in degrees Kelvin.
Color: Balanced images
At important we are going to make perfectly proportioned images (in which no color casts).
The correction of unbalanced picture're ready to be made even after shooting via a good editing program. But everything is very simple if there attrezziamo the perfect before pride and sexual.
Warning! As we set the white balance for a particular situation, then remember to reset it when photographed with other lighting challenges.
White Balance and RAW
When we save our images in digital format professional RAW, save information 'raw' image, as recorded by the sensor pixel digital camera without the intervening difference in any parameter. In this case also the White Balance is surgery that occurs later, it is far more convert files in TIFF or JPEG.
E 'at this point - by utilizing conversion software for RAW (the one supplied a problem camera, also known as specialized program purchased separately) or with Photoshop, might CS version, we can intervene to set the White Balance to the liking.
If end result does not satisfy us, we might still take a pace back and try again several times, until we get the desired result.
The sources of setting the white balance when converting the image saved in RAW format and are usually related into the software we use.
Here yet another of several advantages offered the RAW format, which is essential if we make use of our professional or semi professional digital camera.