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Ricoh GR Digital III vs Sony A900

Portability
92
Imaging
34
Features
35
Overall
34
Ricoh GR Digital III front
 
Sony Alpha DSLR-A900 front
Portability
54
Imaging
66
Features
62
Overall
64

Ricoh GR Digital III vs Sony A900 Key Specs

Ricoh GR Digital III
(Full Review)
  • 10MP - 1/1.7" Sensor
  • 3" Fixed Display
  • ISO 64 - 1600
  • 640 x 480 video
  • 28mm (F1.9) lens
  • 208g - 109 x 59 x 26mm
  • Introduced July 2009
  • Later Model is Ricoh GR Digital IV
Sony A900
(Full Review)
  • 25MP - Full frame Sensor
  • 3" Fixed Display
  • ISO 100 - 6400
  • Sensor based Image Stabilization
  • 1/8000s Max Shutter
  • No Video
  • Sony/Minolta Alpha Mount
  • 895g - 156 x 117 x 82mm
  • Announced October 2008
  • Renewed by Sony A99
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Ricoh GR Digital III vs Sony A900 Overview

The following is a in-depth overview of the Ricoh GR Digital III and Sony A900, one is a Small Sensor Compact and the other is a Advanced DSLR by brands Ricoh and Sony. There is a crucial difference between the image resolutions of the GR Digital III (10MP) and A900 (25MP) and the GR Digital III (1/1.7") and A900 (Full frame) provide totally different sensor sizes.

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The GR Digital III was manufactured 10 months after the A900 and they are of a similar generation. Both of these cameras have different body design with the Ricoh GR Digital III being a Compact camera and the Sony A900 being a Mid-size SLR camera.

Before delving right into a more detailed comparison, here is a quick summation of how the GR Digital III grades versus the A900 when considering portability, imaging, features and an overall mark.

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Reasons to pick Ricoh GR Digital III over the Sony A900

 GR Digital III A900 
AnnouncedJuly 2009October 2008Newer by 10 months

Reasons to pick Sony A900 over the Ricoh GR Digital III

 A900 GR Digital III 
Display resolution922k920kSharper display (+2k dot)

Common features in the Ricoh GR Digital III and Sony A900

 GR Digital III A900 
Manual focus Very accurate focusing
Display typeFixed Fixed Fixed display
Display dimensions3"3"Equal display dimensions
Selfie screen Lacking selfie screen
Touch friendly display Lacking Touch friendly display

Ricoh GR Digital III vs Sony A900 Physical Comparison

For anybody who is intending to travel with your camera often, you are going to need to factor in its weight and volume. The Ricoh GR Digital III offers outer dimensions of 109mm x 59mm x 26mm (4.3" x 2.3" x 1.0") accompanied by a weight of 208 grams (0.46 lbs) while the Sony A900 has sizing of 156mm x 117mm x 82mm (6.1" x 4.6" x 3.2") along with a weight of 895 grams (1.97 lbs).

Compare the Ricoh GR Digital III and Sony A900 in the latest Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Always remember, the weight of an Interchangeable Lens Camera will vary dependant on the lens you are employing at that moment. Below is a front view size comparison of the GR Digital III vs the A900.

Ricoh GR Digital III vs Sony A900 size comparison

Taking into consideration size and weight, the portability grade of the GR Digital III and A900 is 92 and 54 respectively.

Ricoh GR Digital III vs Sony A900 top view buttons comparison

Ricoh GR Digital III vs Sony A900 Sensor Comparison

Generally, it is hard to see the difference between sensor dimensions simply by reading a spec sheet. The image below may offer you a far better sense of the sensor sizes in the GR Digital III and A900.

As you can see, each of the cameras have different megapixels and different sensor dimensions. The GR Digital III featuring a tinier sensor will make achieving shallower DOF more challenging and the Sony A900 will offer you more detail due to its extra 15MP. Greater resolution will help you crop images a bit more aggressively. The more recent GR Digital III is going to have an edge when it comes to sensor innovation.

Ricoh GR Digital III vs Sony A900 sensor size comparison

Ricoh GR Digital III vs Sony A900 Screen and ViewFinder

Ricoh GR Digital III vs Sony A900 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Ricoh GR Digital III Portrait photography info
Sony A900 Portrait photography info
40
has manual focus
supports RAW files
sensor resolution low (10MP)
small sensor (1/1.7")
71
has manual focus
megapixel count excellent (25MP)
great sensor size (Full frame)
saves RAW formats
doesn't have liveview
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Street Comparison

Ricoh GR Digital III Street photography info
Sony A900 Street photography info
55
supports RAW files
fixed screen
does not have image stabilization
small sensor (1/1.7")
66
has image stabilization (Sensor based)
great sensor size (Full frame)
saves RAW formats
environment sealing
no articulating screen
Photography Glossary

Sports Comparison

Ricoh GR Digital III Sports photography information
Sony A900 Sports photography information
17
can't change focal length (28mm)
does not have image stabilization
sensor resolution low (10MP)
small sensor (1/1.7")
no phase detect autofocus
70
great max shutter speed (1/8,000s)
has image stabilization (Sensor based)
megapixel count excellent (25MP)
great sensor size (Full frame)
environment sealing
comes with phase detect AF
doesn't have liveview
max fps low (5.0 frames per second)
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Travel Comparison

Travel photography with Ricoh GR Digital III
Travel photography with Sony A900
63
flash built-in
great maximum aperture (f1.9)
sensor resolution low (10MP)
does not offer selfie friendly display
54
environment sealing
megapixel count excellent (25 megapixels)
lack of Timelapse recording
display is not selfie friendly
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Landscape Comparison

Ricoh GR Digital III as a Landscape photography camera
Sony A900 as a Landscape photography camera
45
has manual focus
great maximum aperture (f1.9)
screen size is good (3 inches)
supports RAW files
lens is fixed (fixed lens mount)
can't change focal length (28mm)
does not have image stabilization
sensor resolution low (10 megapixels)
small sensor (1/1.7")
72
has manual focus
switch lenses (Sony/Minolta Alpha mount)
screen size is good (3")
has image stabilization (Sensor based)
megapixel count excellent (25MP)
great sensor size (Full frame)
saves RAW formats
environment sealing
2 card slots
doesn't have liveview
lack of Timelapse recording
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Vlogging Comparison

Ricoh GR Digital III Vlogging info
Sony A900 Vlogging info
25
great maximum aperture (f1.9)
does not offer selfie friendly display
does not have image stabilization
video quality not great (640 x 480 pixels)
no external mic support
9
can't shoot video
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Ricoh GR Digital III vs Sony A900 Specifications

Detailed spec comparison table for Ricoh GR Digital III and Sony A900
 Ricoh GR Digital IIISony Alpha DSLR-A900
General Information
Company Ricoh Sony
Model type Ricoh GR Digital III Sony Alpha DSLR-A900
Type Small Sensor Compact Advanced DSLR
Introduced 2009-07-27 2008-10-22
Physical type Compact Mid-size SLR
Sensor Information
Processor Chip GR engine III Bionz
Sensor type CCD CMOS
Sensor size 1/1.7" Full frame
Sensor measurements 7.44 x 5.58mm 35.9 x 24mm
Sensor surface area 41.5mm² 861.6mm²
Sensor resolution 10 megapixel 25 megapixel
Anti alias filter
Aspect ratio 1:1, 4:3 and 3:2 3:2 and 16:9
Highest resolution 3648 x 2736 6048 x 4032
Highest native ISO 1600 6400
Minimum native ISO 64 100
RAW support
Autofocusing
Manual focusing
AF touch
Continuous AF
Single AF
AF tracking
AF selectice
Center weighted AF
AF multi area
Live view AF
Face detect focusing
Contract detect focusing
Phase detect focusing
Total focus points - 9
Lens
Lens mount type fixed lens Sony/Minolta Alpha
Lens zoom range 28mm (1x) -
Max aperture f/1.9 -
Macro focusing distance 1cm -
Total lenses - 143
Focal length multiplier 4.8 1
Screen
Type of display Fixed Type Fixed Type
Display sizing 3" 3"
Display resolution 920 thousand dots 922 thousand dots
Selfie friendly
Liveview
Touch display
Display tech - TFT Xtra Fine color LCD
Viewfinder Information
Viewfinder Optical (optional) Optical (pentaprism)
Viewfinder coverage - 100%
Viewfinder magnification - 0.74x
Features
Slowest shutter speed 1 secs 30 secs
Maximum shutter speed 1/2000 secs 1/8000 secs
Continuous shooting rate - 5.0fps
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Change WB
Image stabilization
Built-in flash
Flash distance 3.00 m no built-in flash
Flash options Auto, On, Off, Red-Eye, Slow Sync, Manual Auto, On, Off, Red-Eye, Slow Sync, Rear Curtain, Fill-in, Wireless
Hot shoe
AEB
White balance bracketing
Maximum flash synchronize - 1/250 secs
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported video resolutions 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps) -
Highest video resolution 640x480 None
Microphone support
Headphone support
Connectivity
Wireless None None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 208 gr (0.46 lb) 895 gr (1.97 lb)
Physical dimensions 109 x 59 x 26mm (4.3" x 2.3" x 1.0") 156 x 117 x 82mm (6.1" x 4.6" x 3.2")
DXO scores
DXO All around rating not tested 79
DXO Color Depth rating not tested 23.7
DXO Dynamic range rating not tested 12.3
DXO Low light rating not tested 1431
Other
Battery life - 880 pictures
Form of battery - Battery Pack
Battery ID - NP-FM500H
Self timer Yes (2 or 10 sec) Yes (2 or 10 sec)
Time lapse recording
Storage type SD/SDHC, Internal Compact Flash (Type I or II), Memory Stick Duo / Pro Duo, UDMA Mode 5, Supports FAT12 / FAT16 / FAT32
Card slots One 2
Retail cost $399 $2,736