The EX-Z4 uses a 3-segment telescoping lens that makes it possible to provide 3x (35-105mm equivalent) optical zoom capabilities in an amazingly thin camera configuration. This is an all-glass Pentax SMC lens constructed of 6 elements in 5 groups with a maximum aperture of F2.6-4.8. It has a 4X dgital zoom option.
The auto focus system covers 15.7" to infinity in normal focus mode and from 2.4" to 19.7" in Macro mode. As you can seefrom the animation above, the lens retracts fully inside of the camera when powered down and is protected by a built in lens barrier. On power up it only takes about two seconds to extend the lens.
The optical viewfinder is large and bright, it shows approximately 85% of the captured image. There is no diopter adjustment. The two LEDs indicates camera power, flash charging, focus lock, memory error / memory full / battery low conditions.
The built-in flash has modes for auto, fill, red-eye reduction and off. The working range is approx. 1.3 to 7.5 feet (W), 1.3 to 5.6 feet (T).
The controls on the back are minimal but effective. All camera settings are changed via an onscreen menu system on the large and bright 2-inch color LCD. You can frame your pictures with the optical viewfinder or the color LCD.
The slide switch on the top selects the Play and Record modes. The zoom lens buttons also serve as the magnified playback and index mode controls buttons when in Play mode. The MENU button calls up and dismisses the onsreen menu system. The 4-way controller lets you easily navigate menu screens or select images for playback, the center SET button accepts selections. In Record mode you push "Up" to enable Macro focus or to enable the Album mode when in Playback. You push "Down" in record to change the flash mode or to delete an image when in Playback. The user can program the "Left" and "Right" actions in the Setup menu to change Rec mode, EV comp, ISO speed, Self-timer or White Balance. The DISP button turns the color LCD on/off and controls the amount of information that is overlayed on the screen.
The EX-Z4 has 10 megabytes of internal memory for saving images and movie clips. Optionally, any size Secure Digital or MultiMedia Card can be used via the expansion slot on the bottom. Image data can be copied to/from internal memory and a flash card via the Playback menu.
Model EXILIM ZOOM EX-Z4
Actual Sensor Resolution [Megapixel] 4.2 Megapixel
Sensor Size [inches] 1/2.5" inches
Sensor Type CCD
Max Resolution [pixel] 2304x1728 pixel
Other Resolutions [pixel] 2304x1728 pixel, 2304x1536 pixel, 1600x1200 pixel, 1280x960 pixel, 640x480 pixel
Optical Zoom 3x
Optical Zoom (35mm equivalent) [mm] 35 mm-105 mm
Wideangle [mm] 35 mm
Tele [mm] 105 mm
Digital Zoom 4x
Min Macro Focus Range [cm] 6 cm
Min Telephoto Focus Range [cm] 40 cm
Aperture Range 2.6-4.3
Min Shutter Speed [sec] 4 sec
Max Shutter Speed [sec] 1/2000 sec
Internal Flash yes
External Flash Support no
Range [m] 1.7 m
Modes Fill-in, Auto, Off, Anti red-eye
Size [inches] 2" inches
Resolution [pixel] 84960 pixel
Manual Focus Mode yes
Exposure Compensation -2 EV to +2 EV in 1/3 EV steps
Manual White Balance yes
Manual Aperture Priority no
Manual Shutter Speed Priority no
Max Resolution [pixel] 320x240 pixel
Max Length [sec] 60 sec
Remote Control N/A
Self Timer yes
ISO 100, 400, 200, 50
Uncompressed Format JPEG
Type Multimedia Card, SD Memory Card
Included Memory [Mb] 10 Mb
PC Connection USB
Video Connection no
Battery Type Lithium-Ion
Battery Charger yes