Depth of Field

Control over the sharp and unsharp parts of the image can be of considerable importance for the success of a photograph.
Traditionally, the depth of field (DOF) is a great source of confusion among photographers.To blur or not to blur, that
is the question. The latter is a matter of DOF, the former not per se.

Depth of Field & Circle of Confusion

Depth of field is the range of distance within the subject that is acceptably sharp.  The depth of field varies depending
on camera type, aperture and focusing distance, although print size and viewing distance can influence our perception of it.

Depth of Field and Depth of Focus

The depth of field, D_ob is the range of distance along the optical axis in which the specimen can move without the image
appearing to lose sharpness.

Intro to Basics of Digital Photography

Photoxels is first and foremost a digital photography site where you will find digital photography tutorials written in easy to
understand language.

Practice taking a photo here - Simulation

It doesn't matter whether you have a digitalcamera or use film, the concepts of exposure still apply.
Film and digital photography use the same building blocks - lens, shutter, aperture, and ISO.