Pentax KX KX Manual - Page 20
Preview
UPC - 027075159624
View all Pentax KX manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 20 highlights
SID PREVIEW A • f/4 OM • • gm • I I I * 3( 15 10 7 IM tI m, 10 5 3 2 e 1'6 22 2 2 5 6 4 2 8 2 14 Depth of field is the range between the nearest and farthest distances which are in focus at a given lens aperture. If you want to know how great the depth of field is at a certain 0. aperture, focus on a subject and see through the viewfinder while depressing the depth-of-field preview button Or, after focusing, look at the depth-of-field guide on the lens. In the photograph below, the distance scale is set at 5 meters . . . the lens is focused on a subject 5 meters away. The calibrations on each side of the distance index correspond to the diaphragm setting and indicate the range of in-focus distance for different lens apertures. For example, if a lens opening of f/4 is to be used, the range on the distance scale ring covered within the figure 4 on the depth-of- field guide indicates the area in focus at that lens opening. You will note from the depth-of-field guide in the photograph that the range from approximately 4 to 7 m is in focus. Note that as the lens apertures change, the effective depth of field also changes. For the depths of field at different apertures and distances, refer to the next page. • 115 7I 6 sst5,/ 5 f/4 . . 3 2 1 0 Distance (m) 18•