![](http://www.donaldkinney.com/four/rdt6100x500x334.jpg)
click photo for full-size image
photo by Donald Kinney
Yeah, I know it is a bit dark. I probably was aiming for dark and moody. Welcome to my world...
![](http://www.donaldkinney.com/four/rdt5994x500x166.jpg)
click photo for full-size image
photo by Donald Kinney
These Canada Geese probably didn't see me as much of a threat, but they w-e-r-e moving a-w-a-y from the goose with the camera.
![](http://www.donaldkinney.com/four/rdt6029x500x334.jpg)
click photo for full-size image
photo by Donald Kinney
Ideally, the typical photograph has tones ranging from 0 (black) to 255 (white), but it is rare that a scene will present itself with tones that fit nicely within that range. Our photos get either "blown-out" with a mass of color-killing overexposure, or "lost in the mud" with giant shadows swallowing up every last bit of detail in the low tones.
So, the photo above is an example of a range of tones in the middle of the "Histogram", which is a graphical representation of all the values in an image. In this case the dark shades only go to about 15, and the high values do not go beyond about 224. I left it this way, as expanding the scale to include solid-blacks and blank-whites would have produced an unnatural looking result. 99% of my images need a bit of help with their blackness and whiteness. The graphical representation makes adjustment easy by just pulling or pushing on the small triangles on each side of the Histogram.
![](http://www.donaldkinney.com/four/histogram500x54.jpg)
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