Kodak 6B8773 manual Depth of Field Preview Button, Executed, Length, and especially aperture

About Your Camera

Depth of Field Preview Button

The depth of field is the zone of acceptable focus in front of and behind the subject.

• Press the Depth of Field Preview button to confirm the depth of field through the viewfinder.

Pressing the Depth of Field Preview button stops the lens down to the aperture controlled in Programmed Auto or Shutter-Priority Auto Exposure mode, and down to the aperture selected in Aperture-Priority Auto or Manual Exposure mode. By looking through the viewfinder, you can confirm the approximate depth of field with the given aperture.

Depth of Field	Your camera is equipped with autofocus where focusing is automatically
	executed.
	When focusing, you should consider depth of field. Depth of field is the
	zone of sharpest focus in front of and behind the subject on which the lens
	is focused. Depth of field varies according to shooting distance, focal
	length, and especially aperture.
	Smaller apertures (larger f-numbers) produce a deeper depth of field
	where the background and foreground become sharper. Larger apertures
	(smaller f-numbers) produce a shallower depth of field where the
	background becomes blurred.
	Similarly, shorter shooting distance or longer focal length produce a
	shallower depth of field, and longer shooting distance or shorter focal
	length produce a deeper depth of field. Note that depth of field tends to be
	shallower in front of the subject in focus and deeper behind the subject.
	NOTE: Confirm the depth of field with the Depth of Field Preview button.

April 28, 2004 2-21