Overview
Ricoh CX4

Not just “high image quality” but “pure image quality, true to what is perceived by the naked eye,” is at the core of Ricoh camera technology. This is achieved through three core technologies—a low-distortion lens with true-to-life imaging properties, an image sensor with superior high-sensitivity performance, and an imaging engine that reproduces images in minute detail—that have been designed and developed as a single mechanism, offering unsurpassed resolution and faithful, unaffected colour reproduction.

The CX4 boasts a back-illuminated CMOS image sensor combined with advanced Smooth Imaging Engine IV image processing. Poorly-lit indoor or night scenes are rendered in pure, unblemished quality, as of course are brightly-lit subjects. An output pixel interpolation algorithm residing in dedicated logic circuits in the imaging engine reduces loss of detail in highlights to faithfully recreate high-contrast scenes exactly as they appear to the naked eye.

The camera’s noise reduction algorithm processes the image signal as it is output from the CMOS image sensor, reducing the image noise that tends to occur in photographs taken at high sensitivities. The result is beautiful, limpid photographs with details, tones, and colours as vivid as those seen in the original subject.

The CX4’s completely reworked image-sensor-shift image stabilization reduces blur on average by the equivalent of about 3.7 shutter-speed stops, about three times faster than the CX3. This ensures crisp, sharp results in close-ups, telephoto shots, and other situations in which blur is likely to occur.

Still images at maximum pixels (10M) can now be shot continuously at high-speed, about 5 frames per. sec. So you can capture that decisive moment in a high-definition image.

With ultra-high-speed continuous shooting, the CX4 shoots 120 images (120 frames/sec.) during an interval of about one second after the shutter release button is pushed, or 120 images (60 frames/sec.) during an interval of about two seconds. The high image quality extends to movies as well as still photographs. It can shoot 1280 × 720 pixel high-resolution HD movies at 30 frames per second. This brings new possibilities for movie enjoyment, such as viewing your CX4 movies on a large-screen TV.

Specifications

No. of Effective Pixels (Camera)		Approximately 10.00 million pixels
Image Sensor		1/2.3-inch CMOS (total pixels: approx. 10.60 million pixels)
Lens	Focal length	f=4.9-52.5mm (Equivalent to 28-300 mm for 35 mm film cameras. With Step Zoom set, focal lengths can be fixed at eight steps: 28 mm, 35 mm, 50 mm, 85 mm, 105 mm, 135 mm, 200 mm, and 300 mm)
	F-aperture	F3.5 (Wide) - F5.6 (Telephoto)
	Shooting Distance	Normal shooting: Approx. 30 cm - infinity (Wide), approx. 1.5 m - infinity (Telephoto) (from the front of the lens) Macro: Approx. 1 cm - infinity (Wide), approx. 28 cm - infinity (Telephoto), approx. 1 cm - infinity (Zoom Macro) (from the front of the lens)
	Lens Construction	10 elements in 7 groups (aspheric lens: 4 elements and 5 surfaces)
Zoom Magnification		Optical: 10.7x zoom (equivalent to 28-300 mm focal length for 35 mm cameras) Digital: 4.8x up to 51.4x (equivalent to 1440 mm) when used with optical zoom Auto Resize: 5.7x *1 up to 61.0x *1 (equivalent to 1710 mm) when used with optical zoom
Focus Mode		Multi AF (contrast AF method) / Spot AF (contrast AF method) / Face-priority multi-AF / Subject-tracking AF / Multi-Target AF / Manual Focus / Fixed Focus (Snap) / Infinity (AF auxiliary light)
Motion Blur Reduction		Image sensor shift method image stabilizer
Shutter Speed *2	Still image	8, 4, 2, 1 - 1/2000 sec.
	Movie	1/30 - 1/2000 sec.
Continuous Shooting	Continuous shooting speed *3	Approx.5 frames/sec. (10M 4:3F shooting time; shooting speed after 12 pictures is approx. 3 frames/sec.)
	Continuous shooting capacity	999 pictures
Exposure Control	Exposure Metering Mode	Multi (256 segments) / Center Weighted Light Metering / Spot Metering
	Exposure Mode	Programme AE
	Exposure Compensation	Manual Exposure Compensation +/-2.0EV (1/3EV Steps), Auto Bracket Function (-0.5EV, ±0, +0.5EV)
ISO Sensitivity (Standard Output Sensitivity)		AUTO, ISO100 / ISO200 / ISO400 / ISO800 / ISO1600 / ISO3200
White Balance Mode		AUTO / Multi-Pattern AUTO / Outdoors / Cloudy / Incandescent 1 / Incandescent 2 / Fluorescent / Manual / White Balance Bracket Function
Flash	Flash Mode	Auto (during low light and when the subject is backlit), Anti Red-eye, Flash On, Slow Synchro, Flash Off
	Built-in flash range	Approx. 20 cm - 4.0 m (Wide), approx. 28 cm - 3.0 m (Telephoto) (auto ISO with a maximum of ISO 1600, measured from the front of the lens)
	Flash compensation	+/-2.0EV (1/3EV Steps)
Monitor		3.0-inch Transparent LCD (approx. 920,000 dots)
Shooting Mode		Auto shooting mode / Movie mode / Scene auto mode / Scene mode (Portrait / Discreet Mode / Night. Port. / Night Landscape Multi-shot / Sports / Landscape / Zoom Macro / Pets / Skew Correct Mode / High Sens / Text Mode) / My settings mode / Continuous mode / Creative Shooting Mode (Dynamic Range / Miniaturize / High Contrast B&W / Soft Focus / Cross Process / Toy Camera)
Picture Quality Mode *4		F (Fine) / N (Normal)
No. of Pixels Recorded	Still image/multi-picture	3648 x 2736, 3648 x 2432, 2736 x 2736, 3648 x 2048, 2592 x 1944, 2048 x 1536, 1728 x 1296 (multi-picture only), 1280 x 960, 640 x 480
	Movie *5	1280 x 720, 640 x 480, 320 x 240
	Text	3648 x 2736, 2048 x 1536
Recording Media		SD memory card SDHC memory card (up to 32 GB), Internal memory (approx. 86 MB)
Recording File Format	Still Image	JPEG(Exif ver.2.3) *6
	Multi-picture	CIPA DC-007-2009 Multi-Picture Format
	Movie	AVI (Open DML Motion JPEG Format compliant)
	Compression method	JPEG Baseline method compliant
Other Major Shooting Functions		Continuous, Self-Timer (operation time: approx. 10 sec. / approx. 2 sec. / custom self-timer), Interval Timer (Shooting interval: 5 sec. - 1 hour, 5 sec. steps) *7, Colour Bracket function, Focus Bracket function, AE/AF Target Shift, Histogram, Grid Guide, Electronic Level
Other Major Playback Functions		Grid View, Enlarged Display (maximum 16x), Resize, Level Compensation, White Balance Compensation, Trim, Flag, Slideshow, DPOF Setting
Interface		USB 2.0 (High-Speed USB) Mini-B, Mass storage compatible *8/ AV Out 1.0Vp-p (75Ω)
Video Signal Format		NTSC, PAL switchable
Power Supply		Rechargeable Battery: DB-100 x1
Battery Consumption *9		Based on CIPA Standard: Using the DB-100, approx. 330 pictures (when LCD Dim is on) *10
External Dimensions		101.5 mm (W) x 58.6 mm (H) x 29.4 mm (D) (24.4 mm at thinnest part)
Weight		Approx. 205 g (including the supplied battery and SD memory card) Approx. 184 g (body only)
Operating Temperature Range		0°C - 40°C

1  VGA image size
2  Shutter speed upper and lower limits vary depending on Shooting Mode and Flash Mode.
3  Values measured under Ricoh measurement conditions using a Panasonic PRO HIGH SPEED 8GB SDHC memory card. The continuous shooting speed and number of pictures will vary depending on the shooting conditions, the type of recording media used, the condition of the recording media, etc.
4  The picture quality modes which can be set vary depending on the image size.
5  When shooting movies of 1280×720 size, the use of an SD/SDHC memory card with an SD speed class of Class 6 or higher is recommended.
6  Compatible with DCF and DPOF. DCF is the abbreviation of the JEITA standard "Design rule for Camera File system." (Full compatibility with other devices is not guaranteed.)
7  With flash off.
8  Mass storage driver is compatible with Windows XP, Windows Vista, Windows 7, and Mac OSX10.1.2-10.6.3
9  Shooting capacity was measured using CIPA-standard parameters. This is only an estimate, and performance may vary according to usage conditions.
10  When LCD Auto Dim is off: approx. 310 pictures