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 P10 28-300mm f3.5-5.6 VC Lens
From expansive
landscape shots to concerts and sports where you are far from the action, this
28-300 mm 10.7x optical zoom handles not only everyday subjects but special
events as well. The high zoom ratio means you will have diverse options for
creative expression.
In people
photography, you could emphasize perspective by using a wide-angle setting to
get up close to your subject while also having an expansive background. Or you
could do the opposite by standing back from your subject and using a telephoto
setting to weaken the sense of perspective, thereby heightening tension by
making it feel like the background is looming up on the subject. With this
camera unit, you enjoy abundant power of expression and profound imaging
possibilities.
This camera
unit shoots continuously at about 4.3 frames/second* in RAW mode (10M), which
captures a large volume of image data thereby giving you a high degree of
freedom in subsequent image creation processes. You can also shoot at up to 120
frames/second (640×480) using the ultra-high-speed Hi setting. In addition,
there is M-continuous plus, which at the Low (10M) setting shoots 15 images in
as little as 3 seconds and at the Hi (2M) setting shoots 26 images in about 0.9
seconds. Holding the shutter-release button down, you follow the movement of
the subject, and when you take your finger from the button, the images shot
continuously up to that point are saved.
This function is very powerful for scenes in which continuous-shooting timing
is a problem, such as where an animal could bolt or a soccer player shoot at
any second.
A
back-illuminated CMOS sensor is utilized for beautiful tone and colour
reproduction even in low-light scenes. Furthermore, noise reduction processing
is immediately performed on the sensor's signal output. Since the image is
generated from a low-noise signal, it is possible to obtain natural
high-quality photographs without loss of resolution, tone characteristics, or colour
saturation. The noise reduction level can be specified as Off, Weak, Strong, or
MAX. With MAX, the screen is divided into segments and the optimum noise
processing is done for each. This gives a smoother and more natural result than
past methods which used uniform noise processing for the entire image.
When you want to shoot a sunset or a low-light indoor scene without flash, or
when you are aiming at someone far away using 300 mm telephoto, hand-motion and
subject-motion blur become a concern. RICOH LENS P10 28-300 mm has the
vibration correction function developed exclusively by Ricoh. Through the
synergy of this function and the high-sensitivity CMOS sensor, it is possible
to effectively suppress unwanted blurring.
With
dynamic range double shot, the camera shoots two consecutive images at
different exposures and then combines them. This creates an image closer to
what the eye sees by suppressing both overexposure and underexposure even in
high-contrast scenes. Using RICOH LENS P10 28-300 mm, you can select from five
dynamic range expansion settings (AUTO and four levels ranging from “Very Weak”
to “Strong”).
The expansion-effect detailed settings also enable you to indicate priority
tone range with the "Highlights," "Shadows," and “OFF” (no
priority) options.
The minimum
focal length for macro shooting is about 1 cm (at wide-angle; from front of
lens). You can discover the beauty of a tiny world usually unnoticed by the
naked eye, and also utilize beautiful bokeh effects for the background.
Tele-macro shooting as close as 27 cm is also possible for the telephoto
setting. This will handle a wide range of close-up shooting conditions such as
subjects that you can't quite get close enough to, subjects that will end up in
your shadow if you get too close, and subjects that you don't want to startle
(insects, etc.).
Specifications
GR P10 28-300mm f3.5-5.6 VC Lens
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Effective pixels
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Approximately 10 million
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Image sensor
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1/2.3-inch CMOS sensor (total pixels: approx. 10.60
million pixels)
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Lens
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Focal length
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f=4.9-52.5 mm (35 mm equivalent: 28-300 mm)
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Aperture (F-number)
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f/3.5 –
f/5.6
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Focus range (from the front of the lens)
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Normal shooting: Approx. 30 cm - infinity (wide-angle),
approx. 1.5 m - infinity (telephoto)
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Macro shooting (from the front of the lens)
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Approx. 1 cm - infinity (wide-angle), approx. 27 cm -
infinity (telephoto), approx. 1 cm - infinity (zoom macro)
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Construction
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10 elements in 7 groups (4 aspherical lens elements with 5
surfaces)
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Zoom
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10.7× optical zoom; 4.0× digital zoom (2.8x for movies,
HD), approx. 5.7× auto resize zoom (VGA)
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Focus mode
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Multi AF; Spot AF; MF: Snap; ∞; Multi-trgt AF (AF
auxiliary light and focus bracketing available)
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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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1/2000 - 30 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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Multi (256-segment), center-weighted, and spot modes (TTL
metering with auto exposure lock)
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Mode
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Program AE, aperture priority AE *1, 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 1 / Incandescent Lamp 2 / 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 – 4.0 m (wide-angle), approx. 28 cm – 2.5 m
(telephoto) (ISO AUTO)
|
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Shooting mode
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Auto / program shift / aperture priority *1 /
shutter priority / manual /scene (movie, portrait, sports, landscape,
nightscape, skew correction, dynamic range double shot, 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; Noise Reduction on weak,
strong, or MAX: 4 pictures
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Number of pictures shot in M-Cont Plus (1 set)
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Low (3648 × 2736): 15 pictures (5 frames/sec.), Hi (1728 ×
1296): 26 pictures (30 frames/sec.)
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Number of pictures shot in Ultra-high-speed Cont (1 set)
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Low (640 × 480): 120pictures (60 frames/sec.), Hi (640 ×
480): 120 pictures (120frames/sec.)
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Picture quality *2
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FINE, NORMAL, RAW (DNG) *3
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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 × 2432, 3264 × 2176
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1:1
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2736 x 2736, 2448 x 2448
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Movies
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1280 × 720, 640 × 480, 320 × 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. 440 shots ) *4
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Dimensions (W x H x D)
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Camera unit only
|
68.7 mm × 57.9 mm × 44 mm (according to CIPA guidelines)
|
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When mounted on the GXR body
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113.9 mm × 70.2 mm × 49.8 mm (according to CIPA
guidelines)
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Weight
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Camera unit only
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160 g (not including the lens cap or connector cap)
|
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When mounted on the camera body
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367 g (including battery, SD memory card, and lens cap)
|
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Operating temperature
|
0 °C to 40 °C
|
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Operating humidity
|
85% or less
|
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Storage temperature
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-20 °C to 60
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1 ND
filter used for aperture priority AE aperture priority mode.
2 The
picture quality modes which can be set vary depending on the image size.
3 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.
4 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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