Overview
Ricoh GR Digital IV

The GR DIGITAL IV employs a hybrid autofocus system that combines an external auto focus with a conventional contrast autofocus system. It is newly equipped with an external autofocus sensor developed in-house that allows for high-speed, high-precision distance calculations for up to 190 points. The camera needs as little as 0.2 seconds for the autofocus to adjust, approximately half the time for the GR DIGITAL III. The scan area for contrast autofocusing is limited so the external autofocus sensor can adjust the focus even if you do not half-press the shutter-release button, allowing for more rapid focus adjustments than previous models. Improvements to the algorithm have increased the speed—as much as doubled it—even for macro autofocusing that uses only the contrast autofocus system.

This is the first model in the GR DIGITAL line to be equipped with an image sensor shift image stabilization feature. Coupled with a bright F1.9 lens, this camera performs even better than previous models under dark conditions. The stabilization effect amounts to as much as 3.2 steps calculated in terms of shutter speed.

The highest possible ISO setting is 3200 (the maximum for the GR DIGITAL III was 1600); the EV can be set in steps of 1 EV or 1/3 EV. Furthermore, using ISO Auto Hi, in addition to setting an upper limit of ISO sensitivity, you can now also set shutter speeds where the ISO sensitivity changes. For example, if the shutter speed is set to 1/60, the camera will maintain that speed as it adjusts ISO sensitivity. This makes it easy to control the camera to match what you want, like when you want to use a fast shutter speed so the subject will not be blurry.

The maximum brightness of the new image monitor has been increased about 1.7 times over that of the GR DIGITAL III; visibility outdoors accordingly has been greatly improved. If the brightness controller is set to Auto, the brightness of the image monitor will adjust automatically in accordance with the brightness of the subject. The size is an easily viewed 3-inch screen (approximately 1.23 million-dot VGA). The wide viewing angle allows for viewing from various directions. In addition, the distance information calculated by the external autofocus sensor can now be displayed as necessary, helping to improve convenience and comfort level.

Specifications

No. of Effective Pixels (Camera)		Approximately 10.00 million pixels
Image Sensor		1/1.7-inch CCD (total pixels: approx. 10.40 million pixels)
Lens	Focal length	f=6.0 mm (equivalent to 28 mm for 35 mm film cameras)
	F-aperture	F1.9 – F9 (exposure control with both aperture and ND filter when F8.0-F11 displays in auto shooting mode)
	Shooting Distance (from the front of the lens)	Approx. 30 cm - infinity; Macro (from the front of the lens): Approx. 1 cm – infinity
	Lens Construction	8 elements in 6 groups (aspheric lens: 2 elements and 2 surfaces)
Digital Zoom Magnification	Digital Zoom	Approx. 4.0x; Auto Resize Zoom: Approx. 5.7x (VGA images)
Focus Mode		Multi AF (Hybrid AF) / Spot AF (Hybrid AF) /Subj. Tracking/ Manual Focus / Snap / Infinity (Focus lock and AF auxiliary light available. For Multi AF and Spot AF, full-press snap and pre-AF are possible.)
Blur reduction		Image sensor shift-type image stabilization function
Shutter Speed*1	Still image	Bulb, Time ,180, 120, 60, 30, 15, 13, 10, 8, 6, 5, 4, 3.2, 2.5, 2, 1.6, 1.3, 1 - 1/2000 sec. (maximum and minimum shutter speeds vary depending on shooting mode and flash mode)
	Movie	1/30 - 1/2000 sec.
Continuous shooting	Continuous shooting speed*11	Approximately 1.54 frames/second
	Maximum continuous shots	999
Exposure Control	Exposure Metering Mode	Multi (256 segments), Centre Weighted Light Metering, Spot Metering (TTL-CCD metering method, AE lock possible)
	Exposure Modes	Program shift AE / Aperture priority AE / Manual Exposure / Shutter priority AE
	Exposure Compensation	Manual Exposure Compensation +/-2.0EV (1/3EV Steps), Auto Bracket Function (-0.5EV, ±0, +0.5EV / -0.3EV, ±0, +0.3EV)
ISO Sensitivity (Standard Output Sensitivity)		AUTO, AUTO-HI, ISO80 – 3200 (1EV, 1/3EV, selectable steps)
White Balance Mode		AUTO / Multi-Pattern AUTO / Outdoors / Cloudy / Incandescent / Fluorescent 1 / Fluorescent 2 / Manual / Detail, White Balance Bracket Function
Flash	Built-in flash mode	Flash On, Auto, Red-eye-Reduction, Flash On, Slow Synchro, Manual Flash, Flash Off
	Built-in flash range	Approx. 20 cm - 3.0 m (ISO Auto)
	Flash compensation	+/-2.0EV (1/3EV Steps)
	Charging time*12	Approximately 5 seconds
Monitor		3.0-inch Transparent LCD (approx. 1,230,000 dots)
Shooting Mode		Auto Shooting Mode / Program Shift Mode / Aperture Priority Mode / Shutter Speed Priority Mode / Manual Exposure Mode / Scene Modes (Dynamic Range / Movie / Skew Correction / Interval Composite) / My Settings Mode
Image settings		Vivid, Standard, Setting1/Setting2, B&W, B&W (TE), High Contrast B&W, Cross Process, Positive Film, Bleach Bypass
Picture Quality Mode*2		F (Fine) / N (Normal) / RAW (DNG file format)*3
No. of Pixels Recorded	Still image	3648×2736, 3648×2432, 2736×2736, 3648×2048, 3264×2448, 2592×1944, 2048×1536, 1280×960, 640×480
	Movie	640x480, 320x240
Recording Media		SD memory card, SDHC memory card, Internal memory (approx. 40MB) Eye-Fi cards (X2 series) can be used
Storage Capacity (Pictures/Time)*4 (internal memory 40MB)	Still image	3648×2736 (RAW: 2, F: 10, N: 17) / 3648×2432 (RAW: 2, F: 11, N: 19) / 2736×2736 (RAW: 2, F: 13, N: 23) / 3648×2048 (RAW: 2, F: 13, N: 23 ) /3264×2448 (F: 12) / 2592×1944 (F: 15) / 2048×1536 (F: 24) / 1280×960 (F:43) / 640×480 (F: 158)
	Movie*5	640×480: 30 frames/sec. (22 sec.), 640×480: 15 frames/sec. (43 sec.), 320×240: 30 frames/sec. (54 sec.), 320×240: 15 frames/sec. (1 min. 38 sec.)
Recording File Format	Still Image	JPEG (Exif ver. 2.3)*6 , RAW (DNG)
	Movie	AVI (Open DML Motion JPEG Format compliant)
	Compression method	JPEG Baseline method compliant (still images, movies)
Other Major Shooting Functions		Continuous / AF-Cont / S-Cont / M-Cont / Self-Timer (operation time: approx. 2 sec. / custom) / Interval Shooting (shooting interval: 5 sec. to 1 hour, in 5-second increments)*7 / Image Setting Bracket / Dynamic Range Compensation Bracketing / Contrast Bracketing / Color Space Setting / AE/AF Target Movement / Camera Shake Correction / Dynamic Range Compensation / Multiple Exposure Shooting / Noise Reduction / Histogram / Grid Guide / Depth of Field / Electronic Level / Hot Shoe
Other Major Playback Functions		Auto Rotate / Grid View / Enlarged Display (maximum 16x) / Slideshow / Resize / Trim / DPOF settings
Interface		USB and AV output terminal: USB 2.0 compliant, mass storage compliant*8 / HDMI micro output terminal: Type D
Video Signal Format		NTSC, PAL switchable
Power Supply	Rechargeable Battery	DB-65 (3.6V) x1, AAA Dry Alkaline Battery x2, AAA Nickel-Metal Hydride Battery x 2, AC adapter (AC-4c option) 3.8V
Battery Consumption:*9	Based on CIPA Standard	Using the DB-65, approx. 390 pictures / Using AAA Dry Alkaline Battery x2, approx. 30 pictures*10
External Dimensions		108.6 mm (W) x 59.8 mm (H) x 32.5 mm (D) (CIPA-conformant)
Weight		Approx. 190 g (excluding battery, SD memory card, strap), Accessories approx. 30 g (battery, strap)
Operating Temperature Range		0ºC-40ºC

1 Shutter speed upper and lower limits vary depending on Shooting Mode and Flash Mode.
2 The picture quality modes which can be set vary depending on the image size.
3 The DNG file format is a RAW image file format and is the standard format of Adobe Systems.
4 Estimated number of still images it is possible to record and estimated amount of movie recording time.
5 The maximum length for one instance of movie recording is 29 minutes or the file size upper limit of 4GB.
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 (R) XP, Windows Vista(R), Windows(R) 7; Mac OS X 10.4 -10.6.7.
9 Shooting capacity was measured using CIPA-standard parameters. This is only an estimate, and performance may vary according to usage conditions.
10 Using Panasonic AAA alkaline batteries.
11 Measurement values obtained under Ricoh measurement conditions using Panasonic Pro High Speed 2G Class 6 cards. Results may differ depending on the speed and/or number of continuous shots, shooting conditions, and recording media, or on the condition of the recording media.
12 When using rechargeable batteries.