Overview
Ricoh GXR
The innovative camera system.
GXR is a new camera system that consists of a body and
camera units. Each camera unit contains a lens (focal lengths differ between
units), an image sensor of optimum type and size for the unit, and an image
processing engine. By changing units, the photographer can handle a diverse
range of scenes in a way that satisfies sophisticated requirements for photo
expression. The slide mechanism adopted for attaching and removing camera units
enables changes to be made quickly and securely.
Compact, high-performance lens
design.
It is the lens that gives life to the photograph. In
interchangeable lens camera systems up to now, the distance from the mount and
the back of the lens to the sensor image plane was subject to requirements for
flange back distance and back focal length. This made it difficult to achieve
both compactness and high optical performance. Eliminating the lens mount,
however, means that the back focal length can be freely defined for the GXR, enabling
the new system to use the most optically efficient lens designs and giving it
excellent potential for future expansion. This practical concept has given
birth to camera units that achieve compact size without compromising image
quality.
Optimum tuning to realize all the
capabilities of the lens and the image sensor
In order to
make the best use of the inherent power of the lens and the image sensor, the
ideal solution is to combine both in a single unit. Consider, for example, the
low-pass filter covering the surface of the image sensor. The dilemma faced is
that while the filter helps prevent colour noise and colour moiré, increasing
this benefit results in an ever greater sacrifice in lens resolution.
Traditional interchangeable lens systems use a single low-pass filter for all
lenses so they are unable to avoid situations where the filter effect is
excessive or inadequate. With the GXR, on the other hand, we can design a
filter optimized for the resolution of the specific lens. In this way, Ricoh has
succeeded in effectively preventing colour noise while suppressing filter
influence on lens resolution.
Highly airtight system for superior
dust proofing
The ease with which dust can adhere to image sensors has
been a system problem for interchangeable lens digital cameras up to now. In
the case of GXR camera units, however, the lens and the image sensor are
integrated into a single unit. This structure makes it difficult for dust to
get in since it is not necessary to expose the inside of the camera when
changing lenses. In addition, the inside of the units are highly airtight with
light-shielded walls. Even in highly dusty shooting environments, camera units
can be changed without hesitation.
Slide mechanism for high precision
and reliability
In a relationship
similar to that of an SLR and its lens mount, the guide rail is a defining
characteristic of the GXR system. In order to create a highly reliable slide
mechanism, stainless steel with superior strength and corrosion resistance was
adopted for the rails. Surface hardness and wear resistance were further
enhanced with a soft-nitriding process, the end result being a high-precision
slide that enables secure attachment and removal. The combination of the slide,
the resin components, and the pressure-welded springs give an appropriate
sliding feel and quietness. In the development, high-stress attachment/removal
testing was done to verify the reliability of both mechanical and electrical
connections.
Magnesium alloy exterior
Both the
body and the camera units utilize a magnesium alloy exterior. Light, strong,
and exhibiting superior precision-molding, heat-dissipation, and
magnetic-shielding characteristics, magnesium alloy is an ideal material for
digital cameras. With a non-slip "pear-skin" baked finish for both
corrosion resistance and a high-class feel, the GXR exterior achieves
durability, reliability, and high-class impression.
Specifications
GXR External Body
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Flash
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Mode
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Auto (flash fires when lighting is poor or subject is
backlit), red-eye, on, slow sync, manual, off
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Range (built-in flash)
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Refer to
camera unit specifications.
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Flash compensation
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±2.0 EV in increments of 1/2EV or 1/3EV
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Manual flash amount
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FULL, 1/1.4, 1/2, 1/2.8, 1/4, 1/5.6, 1/8, 1/11, 1/16,
1/22, 1/32, 1/64
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Picture display
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3.0" transparent LCD; approx. 920,000 pixels
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Shooting mode
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Auto, program shift, aperture priority, shutter priority,
manual, scene (movie, portrait, sports, landscape, nightscape, skew
correction), " My Settings"
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Picture quality
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Fine, Normal, RAW (DNG) *1
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Storage
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SD/SDHC memory card, internal memory (approx. 86 MB)
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File size
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Refer to camera unit specifications.
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File format
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Photographs
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JPEG (Exif Ver. 2.21) *2, RAW (DNG)
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Movies
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AVI *3(Open DML Motion JPEG compliant)
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Compression
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JPEG baseline compliant (photographs and movies)
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Other shooting options
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Continuous shooting (continuous, M-Cont Plus); self-timer
(shutter release delay of approx. 10 s or 2 s, or custom setting); interval
timer (intervals of 5 s to 1 hour in increments of 5 s)*4 color
bracketing; B&W (TE); color space selection; noise reduction; histogram
display; framing grid; depth-of-field indicator; tilt indicator; hot shoe
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Other playback options
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Auto image rotation (when camera unit attached);
multi-frame playback; playback zoom (up to 16x); resize
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Interface
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USB 2.0 (High-Speed) Mini-B connector; Mass Storage *5;
AV output (NTSC), HDMI connector (Mini HDMI Type C)
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Video signal format
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NTSC, PAL
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Power source
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DB-90 rechargeable battery (3.6V)
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Battery life
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Refer to camera unit specifications.
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Dimensions (W x H x D)
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113.9 mm x 70.2 mm x 37.5 mm (excluding projections)
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Weight
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Camera body (excluding battery, memory card, neck strap,
and connector cap): 160 g
Battery, neck strap, and connector cap: 66 g
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Tripod screw hole
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1/4-20UNC
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Operating temperature
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0 °C to 40 °C
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Date storage time
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Approx. 1 week
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Operating humidity
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85% or less
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Storage temperature
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-20 °C to 60 °C
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1 A JPEG file is also recorded (the
JPEG file may be a fine or normal quality file with the same dimensions as the
RAW file or a VGA file). RAW files use the standard DNG format promoted by
Adobe Systems Incorporated
2 Compatible with the Design rule for Camera
File system (DCF, a JEITA standard) and DPOF. Full compatibility with other
devices is not guaranteed.
3 Audio: PCM 32 kHz, 16 bit monaural.
4 Flash off.
5 Mass Storage is supported under
Windows 2000, Windows XP, Windows Vista®, Windows® 7, and
Mac OS 9.0-9.2.2, Mac OS X 10.1.2-10.6.4.
Overview
GR S10 24-72mm f2.5-4.4 VC Lens
The S10 24-72 mm lens has a 3.0x optical zoom lens with
coverage from 24 mm wide-angle to 72 mm medium telephoto. So it can be a
wide-angle lens convenient for both expansive landscapes and narrow indoor
spaces, a standard lens providing a natural visual field with an angle of view
close to that of the naked eye, and a medium telephoto lens, a type that is
frequently used for portraits and that provides a view similar to the eye when
concentrating on a single point. With this wide focal length coverage in a single
lens, it is possible to handle a diverse range of subjects. The photographer
can enjoy visual effects unique to photography, such as using the wide-angle
capability to get close to the subject and emphasize perspective.
The lens
configuration has 7 groups and 11 elements, and the rear focus technique
convenient for fast AF is used. Including the first element, a large-diameter
aspherical lens, there are a total of 4 aspherical lens elements situated in
optimum positions. Using special low-dispersion glass and other techniques, we
have achieved compact size while suppressing image distortion and colour
fringing near the edge, even at 24 mm wide-angle. High-resolution and contrast
are achieved at all focal lengths. In production, the lens group optical axis
and image sensor gradient are precisely adjusted in micron units. Superior
optical performance to the edge of the image is insured before the image is
delivered to the photographer.
Close-up
photography with a minimum shooting distance of 1 cm (wide-angle; distance from
front of lens). In addition, with zoom macro, which provides greater
magnification than standard macro, it is possible to fill the frame with a
17×132 mm subject or a 4.3×3.2 mm subject if digital zoom is also used.
As it is
intended to be used as the photographer's "everyday" zoom lens, the
S10 utilizes a 1/1.7-inch high-sensitivity image sensor to achieve both
high-level image quality and superior portability. Featuring both
high-sensitivity and low-noise characteristics, this CCD can handle the wide
sensitivity setting range of ISO100 to 3200. Even in high-sensitivity
photography, it is possible to obtain natural-looking images with tonal
gradations.
Vibration
Correction function developed independently by Ricoh, is effective for preventing
the camera shake that can occur in various situations, such as when you want an
ambient-light atmosphere for sunset or party scenes, when shooting in museums
and other public facilities where flash use is prohibited, and when shooting
nightscapes beyond flash range. In addition, blurring from both camera shake
and subject movement can be suppressed using the high-sensitivity shooting
capability of up to ISO3200.
Specifications
GR S10 24-72mm f2.5-4.4 VC Lens
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Effective pixels
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Approximately 10.0 million
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Image sensor
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1/1.7" CCD (total pixels: approx. 10.4 million)
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Lens
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Focal length
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5.1 mm - 15.3 mm (35 mm format equivalent: 24-72 mm)
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Aperture (F-number)
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f/2.5 -
f/4.4 (T) (wide-open f value)
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Focus range (from the front of the lens)
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Normal shooting: Approx. 30 cm to infinity
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Macro shooting: Approx. 1 cm to infinity (wide angle);
Approx. 4 cm to infinity (telephoto); approx. 1 cm to infinity (zoom macro)
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Construction
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11 elements in 7 groups (4 aspherical lens elements with 4
surfaces)
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Zoom
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3.0 x optical zoom; 4.0 x digital zoom; approx. 5.7 x auto
resize zoom (VGA)
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Focus mode
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CCD-based multi and spot AF; MF; Snap; infinity (focus
lock and AF-assist)
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Camera shake correction function
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Image sensor shift method image stabilizer
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Shutter speed
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Photographs
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180 - 1/2000 s (upper and lower limits vary according to
shooting and flash mode)
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Movies
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1/30 - 1/2000 s
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Exposure control
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Metering
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TTL-CCD metering in multi (256-segment), center-weighted,
and spot modes with autoexposure lock
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Mode
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Program AE, aperture priority AE, manual exposure, shutter
priority AE, move target function
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Exposure compensation
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Manual (+4.0 to -4.0 EV in increments 1/3 EV or 1/2 EV),
auto bracketing (-2 EV to +2 EV in increments 1/3 EV or 1/2 EV)
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ISO sensitivity (Standard Output Sensitivity)
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Auto, Auto-Hi, ISO 100, ISO 200, ISO 400, ISO 800, ISO
1600, ISO 3200
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White balance
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Auto / Multi-P AUTO / Outdoors / Cloudy / Incandescent
Lamp / Fluorescent Lamp / Manual Settings / Detail; white balance Bracketing
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Flash
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Range (built-in flash)
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Approx. 20 cm - 4.5 m (wide-angle), Approx. 15 cm -2.7 m
(telephoto)
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Shooting mode
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Auto / program shift / aperture priority / shutter
priority / manual /scene (movie, portrait, sports, landscape, nightscape,
skew correction, zoom macro) / "My Settings"
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Continuous mode
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Number of pictures shot in Continuous (Picture Size: RAW)
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Noise Reduction off: 5 pictures (under ISO800), 4 pictures
(ISO800 and higher); Noise Reduction on (Weak or Strong): 4 pictures
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Number of pictures shot in M-Cont Plus (1 set)
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HI (640 x 480) : 30 pictures (30 Frames/Sec)
LO (3648 x 2736) : 15 pictures (1.6 Frames/Sec)
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Picture quality *1
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FINE, NORMAL, RAW (DNG) *2
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Image size (pixels)
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Photographs
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16:9
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3648 x 2048, 3264 x 1840
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4:3
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3648 x 2736, 3264 x 2448, 2592 x 1944, 2048 x 1536, 1280 x
960, 640 x 480
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3:2
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3648 x 2432, 3648 x 2176
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1:1
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2736 x 2736, 2448 x 2448
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Movies (30 Frames/Sec)
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640 x 480, 320 x 240
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File size (approx.)
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RAW
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16:9
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NORMAL: 12,923 KB/frame,
FINE: 14,160 KB/frame,
VGA: 11,347 KB/frame
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4:3
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NORMAL: 17,202 KB/frame,
FINE: 18,854 KB/frame,
VGA: 15,096 KB/frame
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3:2
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NORMAL: 15,311 KB/frame,
FINE: 16,779 KB/frame,
VGA: 13,439 KB/frame
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1:1
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NORMAL: 12,956 KB/frame,
FINE: 14,195 KB/frame,
VGA: 11,377 KB/frame
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L
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16:9
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NORMAL: 1,630 KB/frame,
FINE: 2,779 KB/frame
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4:3
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NORMAL: 2,169 KB/frame,
FINE: 3,704 KB/frame
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3:2
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NORMAL: 1,930 KB/frame,
FINE: 3,295 KB/frame
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1:1
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NORMAL: 1,633 KB/frame,
FINE: 2,784 KB/frame
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M
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16:9
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NORMAL: 1,329 KB/frame,
FINE: 2,253 KB/frame
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4:3
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NORMAL: 1,761 KB/frame,
FINE: 2,990 KB/frame
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3:2
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NORMAL: 1,567 KB/frame,
FINE: 2,660 KB/frame
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1:1
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NORMAL: 1,327 KB/frame,
FINE: 2,248 KB/frame
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5M
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4:3
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FINE: 2,287 KB/frame
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3M
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4:3
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FINE: 1,474 KB/frame
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1M
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4:3
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FINE: 812 KB/frame
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VGA
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4:3
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FINE: 197 KB/frame
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Battery life
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Based on CIPA standard DB-90: approx. 410 shots ) *3
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Dimensions (W x H x D)
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Camera unit only: 68.7 mm x 57.9 mm x 38.6 mm (excluding
projections)
When mounted on the camera body: 113.9 mm x 70.2 mm x
44.4 mm (excluding projections)
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Weight (approx.)
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Camera unit only: 161 g (not including the lens cap or
connector cap)
When mounted on the camera body: 325 g (not including
the battery, memory card, neck strap, connector cap, or lens cap)
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Operating temperature
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0 °C to 40 °C
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Operating humidity
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85% or less
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Storage temperature
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-20 °C to 60 °C
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1 The
picture quality modes which can be set vary depending on the image size.
2 A JPEG
file is also recorded (the JPEG file may be a FINE- or NORMAL-quality file with
the same dimensions as the RAW file or a VGA file 640 × 480 pixels in size).
RAW files use the standard DNG format promoted by Adobe Systems Incorporated.
3
For
reference only; actual number of shots varies greatly according to how
camera
is used. We recommend that you carry spare batteries when in use for extended
periods. (Shooting capacity was measured using CIPA-standard
parameters. These
are only estimates; performance may vary depending
on usage conditions.)
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