Using the Exposure Mode and Other Fuctions | Pentax Optio A20

4 TakingPictures

Shutter release button

Four-way controller

OK button

Using the Exposure Mode and Other Fuctions

R (Program mode), (Shutter Priority mode) and (Manual Exposure mode) allow you to take pictures with various aperture and shutter speed settings (Exposure modes).

Enjoy a wide variety of shots by using other functions such as Flash mode or Continuous Shooting mode.

RProgram	Sets shutter speed and aperture automatically for proper
	exposure.

Shutter Priority Set shutter speed manually. Aperture is set automatically.

	Manual	Set both shutter speed and aperture manually.
	Exposure	Set both shutter speed and aperture manually.
	Exposure

Effect of Aperture and Shutter Speed

There are many correct combinations of shutter speed and aperture for a particular subject. Different combinations produce different effects on a picture.

	Slower shutter	The shutter remains open for a longer time. If the subject is moving,
	Slower shutter	the image will be blurred while the shutter is open, thus enhancing
	speed
	speed	the effect of motion.
		the effect of motion.
	Faster shutter	The shutter remains open for a shorter time. It allows freezing the
	speed	action of a moving subject.
	Lesser aperture	Decreases the amount of light which enters through the lens.
	value
	value
	Higher aperture	Increases the amount of light which enters through the lens.
	value
	value

56

Image 58

Pentax Optio A20 specifications Using the Exposure Mode and Other Fuctions, Effect of Aperture and Shutter Speed

Contents

Operating Manual Thank you for buying the Pentax Digital Camera For using your camera safely About the Camera About the Battery Charger and the AC Adapter Page Care to be Taken During Handling Regarding Product Registration Contents Recording and Playback of Sound Playback/Deleting/Editing Settings Appendix Contents of the Operating Manual Checking the Contents of the Package Front Names of PartsBack Four-way controller Names of Operating PartsGuide Indications Attaching the Strap Removing the Battery Powering the CameraInstalling the Battery Open the battery/card cover Charging the Battery Battery Level Indicator Recycling Batteries Charging the Battery Abroad Denmark, Germany, Norway, Hungary, Finland Using the AC Adapter optional Precautions When Using the Battery Charger or AC Adapter Installing the SD Memory Card Data Backup Precautions When Using an SD Memory Card Appropriate Sizes According to Use Image Size and Quality of Still PicturesAppropriate Quality According to Use Approximate Number of Recordable Images by Size and Quality Size and Quality of MoviesAppropriate Sizes Recorded Pixels According to Use Default setting is C Press the four-way controller Setting the Display LanguageUse the four-way controller To select a language Setting the Date and Time Press the OK button Press the four-way controller Use the four-way controller 23 to change the month Ntsc Press the shutter release button halfway Press the shutter release button fully Press down fully Using the Shutter Release ButtonPress halfway Instant Review Press the Q Playback button Playing Back an ImagePlaying Back the Previous or Next Image After taking a picture Press the Green button when playing back an image Deleting the Displayed Image Press the power switch again Using the My Album FunctionPress the power switch Turning the Camera On and Off Turning the Camera On in Playback Mode Press the power switch while pressing the QPlayback button Using the Button Functions Capture Mode Playback Mode For playing back voice recording files 1p.110 Voice Recording Mode Shutter release button Use the four-way controller 23 to change the setting Setting the MenusHow to Set the Menus To Save the Setting and Start Taking Pictures To Cancel the Changes and Continue with Menu Operations To Save the Setting and Begin Playback of ImagesTo Save the Setting and Continue with Menu Operations Press the OK button or the four-way controller Example of Menu Operation Menu button Menu List Rec.Mode Menu Set-up Menu How to operate the Mode Palette Operating the Mode PaletteMode Palette List Capture Mode Palette Portrait mode Playback Mode Palette Dpof Displaying Shooting Information in Capture Mode Changing the ModeSelecting the Capture Mode Taking Pictures No icons Histogram DisplayGrid Display Backlight Off Using Histogram Taking Pictures Using the Shake Reduction Function Press the Shake Reduction preview button Press the Green button in Capture Taking Pictures in the Basic Mode Green ModeMode Auto To select Auto Picture mode Press the OK button Taking Pictures Automatically Auto Picture ModePress the four-way controller 3 in Capture mode Use the four-way controller TakingPictures Using the Exposure Mode and Other Fuctions Effect of Aperture and Shutter Speed To Select the Program mode Use the four-way controller 2345 to select R Program modeTo Select the Shutter Priority mode To Select the Manual Exposure mode Press the OK button Press the four-way controller 3 Capture mode Use the four-way controller 2345 to select a desired mode Press the OK button Press the shutter release button halfway Pictures Taking Pictures of People Portrait Mode/Kids ModeUse the four-way controller 2345 to select Portrait mode Press the OK button Press the OK button Use the four-way controller 2345 to select EPet mode Taking Pictures of Your Pet Pet Mode Press the four-way controller 45 to adjust the contrast Taking Pictures of Text Text ModeUse the four-way controller 23 to select Taking Pictures of Dark Scenes Night Scene Mode Blur reduction Taking Movies Movie Mode To select C Movie mode Press the OK button Keeping the Shutter Release Button Pressed To select Y Frame Composite Taking Pictures in Frame Composite modeUse the four-way controller 45 to select a frame To Register a New Frame Using the Self-timer Press the four-way controller 2 in Capture mode Continuous Shooting Continuous Shooting Mode Taking Pictures Using the Remote Control Using the Remote Control Unit optionalPress the shutter release button on the remote control unit Control Press the OK button Changing the Magnification Using the Remote Control Unit Press the zoom button on the remote control unitLife of the Battery for the Remote Control Unit Using the Zoom to Change the Subject Size Press the zoom button in Capture mode Press the Menu button in Capture mode Setting the Digital Zoom Selecting the Focus Mode Setting the Shooting FunctionsFocus Mode To select the focus mode Press the four-way controller 5 in Capture modeManual Focus TakingPictures Selecting the Flash Mode Flash Mode Flash Mode Auto Selecting the Recorded Pixels of Still Pictures Number of Recorded Pixels Number of shots for the selected recording pixels appears Selecting the Quality Level of Still Pictures Quality Levels Adjusting the White Balance White Balance Taking Pictures Select K Manual on the White Manual SettingBalance screen Changing the Focusing Area Selecting the Autofocus SettingsUse the four-way controller 23 to select AF Setting Focusing Area Setting the Focus Limiter Setting the Auxiliary AF Light Setting the Light Metering Mode to Determine the Exposure AE Metering Modes Use the four-way controller 23 to select Sensitivity Setting the SensitivitySensitivity Selecting the Sensitivity Use the four-way controller 23 to select the sensitivitySelect Auto and press Four-way controller Selecting the Sensitivity and ISO Correction Range Setting the Exposure EV Compensation Selecting the Recorded Pixels of Movies Selecting the Settings for Taking MoviesUse the four-way controller 23 to select Movie Recorded Pixels To select Recorded Pixels Selecting the Quality Level of Movies Compensating for Camera Shake While Taking Movies Setting the Shake Reduction for Still Pictures Taking Setting the Instant Review Time Setting the Green Button To select Green Button Registering Frequently Used Functions Fn Setting Press the OK button Initial settings for Fn Setting Functions that can be registered on Fn Setting To select Sharpness Setting the Image SharpnessTo adjust sharpness Softens the contours + Sharpens the contours To select Saturation Setting the Color SaturationTo adjust saturation Reduces the saturation + Increases the saturation To select Contrast Setting the Image ContrastTo adjust contrast Reduces the contrast + Increases the contrast Saving the Settings Saving the Menu Items Memory 107 Recording Recording Sound Voice Recording ModeSound Playback of Sound Playing Back Sound 000011 Adding a Voice Memo Recording a Voice Memo Playing Back a Voice Memo Playing Back Still Pictures Playing Back ImagesZoom Display Setting the Quick Zoom Function Playing Back Movies Sensitivity Histogram Displaying Shooting Information in Playback ModeRecorded pixels Quality level White balance Playback/Deleting/Editing Aperture Nine-Image Display/Calendar Display Nine-Image Display Playback mode, press w/f on the zoom button Calendar Display Slideshow Use the four-way controller 3 to select Screen Effect Use the four-way controller 45 to select the effect Deleting a Single Image, Movie or Sound Deleting Images, Movies and SoundsUse the four-way controller 2 to Select Delete Deleting a Voice Memo only Enter the Playback mode and press the Green button twice Deleting All Images Enter the Playback mode and press w/f on the zoom button 125 To select Select image/sound Protecting Images, Movies and Sounds from Deletion ProtectTo select Z Protect Protecting Images, Movies and Sounds Protecting All Images, Movies and Sounds Turn the camera on Viewing Images on AV EquipmentTurn the AV equipment on Cable Playback/Deleting/Editing Playing Back an Image Using the Remote Control Unit optional Printing Single Images Setting the Printing Service DpofTo select Dpof Press the OK button 131 Enter the Playback mode and press the four-way controller Printing All Images Connecting the Camera to the Printer Direct Printing Using PictBridgeSelect PictBridge for USB Connection on the H Set-up menu 134 Use the four-way controller 2345 to select the paper size Press the OK button twice Printing Using the Dpof Settings Disconnecting the Camera from the Printer To select Resize Press the OK button Editing ImagesChanging the Image Size and Quality Resizing Single Images To change the quality Use the four-way controller To select Cropping Cropping ImagesCrop the image To select s Image Rotation Press the OK button Rotating the Displayed ImagePlayback mode, use the four-way controller 45 to Press the four-way controller Or the four-way controller Use the four-way controller 23 to select Overwrite Editing Pictures with Color FiltersTo select Color Filter Press the OK button Or Save as Press the OK button Use the four-way controller 23 to select Eight colors Selecting the Color Filter Eight Colors Editing Pictures with the Digital Filter To select Digital Filter Press the OK button Selecting the Slim Filter Editing Pictures with Brightness Filter Use the four-way controller To select Brightness Filter 146 Editing Movies Saving a Frame from a Movie as a Still Picture Point you want to save Dividing a Movie Select Extract on the Movie Edit screen Press the OK button Extracting Movies Removing Red-eye To select Z Red-eye Compensation Press the OK button Specify the area for compensation Removing Red-eye Manually Frame Composite Press the OK button Adding a Frame Frame CompositeUse the four-way controller 2345 to select Y To select a frame 153 Copying Files Use the four-way controller 2345 to select Image/Sound Copy To select the file to copy Press the OK button To Copy Files from the Built-in Memory to the SD Memory Card Camera Settings Setting Up the Start-up Screen 157 Use the four-way controller 2 to Formatting an SD Memory Card or the Built-in MemorySelect Format on the H Set-up menu Select Format Select Playback Volume Changing the Sound SettingsTo change the operation volume Changing the Volume To select Start-up Sound Changing the Sound Select User in in Changing the Sound Press the OK button Changing the Sound Using a Recorded Sound FileUse the four-way controller 45 to select a sound file Changing the Date and Time To change the month Setting the World Time Press the four-way controller 3 to select Destination Press the four-way controller 3 to select W Hometown Changing the Display Language Four-way Controller OK button Menu button Changing the Image Folder Name Folder Name Changing the USB Connection Mode Changing the Video Output Format Use the four-way controller 23 to select Ntsc or PAL Adjusting the Brightness of the LCD Monitor Playback button Four-way controller Menu button Setting Power Saving Setting Auto Power Off Setting the Guide Display Resetting to Default Settings List of City Reset Setting Default SettingsLast Memory Setting Rec. Mode Menu Items 176 Playback Mode Palette Items Capture Mode and Functions Yes Available No Not available Capture Mode and Default Setting of Each Function Optional Accessories Memory card error Messages 182 Troubleshooting Problem Cause Remedy 184 Main Specifications Camera 186 Power Supply NTSC, PAL Warranty Policy CE Mark is a Directive conformity mark of the European Union For customers in Canada For customers in USAPour les utilisateurs au Canada Declaration of Conformity Information on disposal for users Index 194 195 Memo Memo