Pentax K20D User Manual

58
Basic Operations
3
The autofocus mechanism is not perfect. Focusing may be difficult when
taking pictures under the following conditions ((a) to (f) below). These also
apply to manual focusing using the focus indicator ] in the viewfinder.
If the subject cannot be focused automatically, set the focus mode lever to
\ and use the manual focus mode to focus on the subject with the aid
of the matte field in the viewfinder. (p.111)
(a) Extremely low-contrast subjects such as a white wall in the
focusing area.
(b) Subjects which do not reflect much light within the focusing area.
(c) Fast moving objects.
(d) Strongly reflected light or strong backlighting (bright background).
(e) If repeating vertical or horizontal line patterns appear within the
focusing area.
(f) Multiple subjects in the foreground and background within the
focusing area.
Subjects that are Difficult to Focus on
Subject may not be focused even when ] (focus indicator) is displayed when
(f) above applies.

Pentax K20D Specifications

General

Camera Type	Digital SLR
Sensor Type	CMOS
Sensor Size	23.4 x 15.6 mm
Resolution	14.6 MP
Continuous Shooting Speed	3 fps
Image Stabilization	Sensor-shift
Screen Size	2.7 inches
Screen Resolution	230, 000 dots
Storage Media	SD/SDHC
Dimensions	141.5 x 101 x 70 mm
Weather Sealing	Yes
Image Processor	PRIME (Pentax Real Image Engine)
Shutter Speed	30-1/4000 sec
Viewfinder	Optical (pentaprism)
Battery	Rechargeable Lithium-Ion battery
ISO Range	ISO 100 - 3200 (expandable to 6400)