Translations:Adventist Youth Honors Answer Book/Arts and Crafts/Digital Photography/17/en

A digital camera has certain circuits to reconstruct the whole image using above information. It takes these:

Shades bayer r.png

Red
Shades bayer g.png

Green
Shades bayer b.png

Blue

and makes this:

Shades framed dc.jpg

Reconstructed
Shades framed aa.jpg

Notice it is not quite the same as this Original

d. What the camera lens does; what focal length means.

Camera Lens

A camera lens usually has an aperture adjustment mechanism to control the amount of light that may pass. It also has a shutter, to control the length of time during which light may pass through the lens.

Focal Length

File:Focal-length.png

Focal Length

The focal length is a measure of how strongly it converges (focuses) or diverges light. A shorter focal length has greater optical power than one with a long focal length.