Instruction manual
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NOTE: You can change white balance in almost any photo editing program.
As a rule, you select “Color Balance” and change color temperature by moving the
‘Cyan/Red’ slider one way and the ‘Yellow/Blue’ slider an equal amount the other
way until the photo looks right. To change green/magenta bias with fluorescent
and metal-halide lighting, simply move the ‘Green/Magenta’ slider until the photo
looks right.
2.6 Photo Resolution and Quality
Resolution and quality are two different things: resolution is the number of
pixels in the picture, and quality is how much you compress them. Based on
these two factors, some pictures will be of a higher quality than others. Also, the
resolution and quality settings you choose dictate how many pictures you can fit
on your memory card.
2.6.1 Resolution
The sensors in a digital camera are made up of millions of pixels
(megapixels), each one registering the brightness of the light striking it as the
photo is taken. The number of pixels in the image is about equal to the number of
pixels on the sensor; this number is referred to as the photo’s resolution. The
easiest way to visualize pixels is to compare them to a puzzle; pixels make up a
digital image much like the pieces of a puzzle are assembled to create the puzzle
image.
A digital camera records digital pixels onto a removable media card. A 3-
megapixel (MP) camera can process and record images that consist of
approximately three million pixels apiece.
Simply put, the greater the number of pixels in an image, the higher the
resolution. And the higher the resolution, the more detail you can see and the
better and larger the print you can make.
Most digital cameras allow you to change the resolution setting, so you can fit
more or fewer photos on your memory card. The table depicts resolution settings
for two cameras:
Kodak DC290
Resolution Setting
Resulting size
Ultra
3.36 megapixels (2240 x 1500)
High
2.15 megapixels (1792 x 1200)
Medium
1.38 megapixels (1440 x 960)
Standard
345,600 pixels (720 x 480)