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Ricoh GR Digital III vs Sigma DP2x

Portability
92
Imaging
34
Features
35
Overall
34
Ricoh GR Digital III front
 
Sigma DP2x front
Portability
86
Imaging
45
Features
31
Overall
39

Ricoh GR Digital III vs Sigma DP2x Key Specs

Ricoh GR Digital III
(Full Review)
  • 10MP - 1/1.7" Sensor
  • 3" Fixed Screen
  • ISO 64 - 1600
  • 640 x 480 video
  • 28mm (F1.9) lens
  • 208g - 109 x 59 x 26mm
  • Revealed July 2009
  • Renewed by Ricoh GR Digital IV
Sigma DP2x
(Full Review)
  • 5MP - APS-C Sensor
  • 2.5" Fixed Display
  • ISO 100 - 3200
  • 320 x 240 video
  • 41mm (F) lens
  • 280g - 113 x 60 x 56mm
  • Released February 2011
  • Superseded the Sigma DP2s
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Ricoh GR Digital III vs Sigma DP2x Overview

Below, we are contrasting the Ricoh GR Digital III versus Sigma DP2x, former is a Small Sensor Compact while the other is a Large Sensor Compact by manufacturers Ricoh and Sigma. There is a substantial difference among the image resolutions of the GR Digital III (10MP) and DP2x (5MP) and the GR Digital III (1/1.7") and DP2x (APS-C) enjoy different sensor size.

Photography Glossary

The GR Digital III was introduced 18 months before the DP2x making the cameras a generation away from each other. Both of these cameras come with different body type with the Ricoh GR Digital III being a Compact camera and the Sigma DP2x being a Large Sensor Compact camera.

Before delving through a in depth comparison, below is a brief introduction of how the GR Digital III matches up vs the DP2x when it comes to portability, imaging, features and an overall score.

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Reasons to pick Ricoh GR Digital III over the Sigma DP2x

 GR Digital III DP2x 
Display dimension3"2.5"Larger display (+0.5")
Display resolution920k230kCrisper display (+690k dot)

Reasons to pick Sigma DP2x over the Ricoh GR Digital III

 DP2x GR Digital III 
ReleasedFebruary 2011July 2009More modern by 18 months

Common features in the Ricoh GR Digital III and Sigma DP2x

 GR Digital III DP2x 
Focus manually More exact focus
Display typeFixed Fixed Fixed display
Selfie screen Missing selfie screen
Touch friendly display Missing Touch friendly display

Ricoh GR Digital III vs Sigma DP2x Physical Comparison

When you are going to carry around your camera often, you will want to consider its weight and volume. The Ricoh GR Digital III has got outside 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 Sigma DP2x has sizing of 113mm x 60mm x 56mm (4.4" x 2.4" x 2.2") with a weight of 280 grams (0.62 lbs).

Analyze the Ricoh GR Digital III versus Sigma DP2x in our completely new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember, the weight of an ILC will vary based on the lens you are utilizing at the time. Here is the front view scale comparison of the GR Digital III vs the DP2x.

Ricoh GR Digital III vs Sigma DP2x size comparison

Using size and weight, the portability rating of the GR Digital III and DP2x is 92 and 86 respectively.

Ricoh GR Digital III vs Sigma DP2x top view buttons comparison

Ricoh GR Digital III vs Sigma DP2x Sensor Comparison

Often, it's hard to imagine the gap in sensor sizes merely by researching a spec sheet. The picture below should give you a far better sense of the sensor dimensions in the GR Digital III and DP2x.

Clearly, both of those cameras posses different megapixels and different sensor sizes. The GR Digital III using its smaller sensor is going to make getting shallower DOF tougher and the Ricoh GR Digital III will result in extra detail using its extra 5 Megapixels. Greater resolution will also let you crop pics somewhat more aggressively. The more aged GR Digital III will be behind with regard to sensor tech.

Ricoh GR Digital III vs Sigma DP2x sensor size comparison

Ricoh GR Digital III vs Sigma DP2x Screen and ViewFinder

Ricoh GR Digital III vs Sigma DP2x Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Ricoh GR Digital III Portrait photography info
Sigma DP2x Portrait photography info
40
focusing manually
exports RAW files
MP count low (10 megapixels)
tiny sensor size (1/1.7")
57
manual focus
sensor size is good (APS-C)
supports RAW formats
low megapixels (5MP)
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Street Comparison

Street photography with Ricoh GR Digital III
Street photography with Sigma DP2x
55
exports RAW files
screen is fixed
no image stabilization
tiny sensor size (1/1.7")
68
sensor size is good (APS-C)
supports RAW formats
lighter than others in class (280g)
fixed screen
does not have image stabilization
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Sports Comparison

Sports photography with Ricoh GR Digital III
Sports photography with Sigma DP2x
17
focal length is fixed (28mm)
no image stabilization
MP count low (10 megapixels)
tiny sensor size (1/1.7")
doesn't have phase detect auto focus
30
sensor size is good (APS-C)
fixed focal length (41mm)
low fps (3.0 frames/s)
does not have image stabilization
low megapixels (5MP)
has no phase detect autofocus
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Travel Comparison

Ricoh GR Digital III as a Travel photography camera
Sigma DP2x as a Travel photography camera
63
has built in flash
good maximum aperture (f1.9)
MP count low (10MP)
doesn't have selfie friendly screen
67
lighter than others in class (280g)
has built in flash
fast maximum aperture (f)
low megapixels (5MP)
does not posses selfie friendly screen
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Landscape Comparison

Ricoh GR Digital III as a Landscape photography camera
Sigma DP2x as a Landscape photography camera
45
focusing manually
good maximum aperture (f1.9)
pretty good screen size (3 inch)
exports RAW files
cannot switch lenses (fixed lens mount)
focal length is fixed (28mm)
no image stabilization
MP count low (10 megapixels)
tiny sensor size (1/1.7")
48
manual focus
fast maximum aperture (f)
sensor size is good (APS-C)
supports RAW formats
lens is fixed (fixed lens mount)
fixed focal length (41mm)
tiny screen (2.5 inches)
does not have image stabilization
low megapixels (5 megapixels)
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Vlogging Comparison

Ricoh GR Digital III as a Vlogging camera
Sigma DP2x as a Vlogging camera
25
good maximum aperture (f1.9)
doesn't have selfie friendly screen
no image stabilization
video resolution low (640 x 480 pxls)
doesn't have external mic jack
28
fast maximum aperture (f)
lighter than others in class (280 grams)
does not posses selfie friendly screen
does not have image stabilization
low res video (320 x 240 resolution)
doesn't have external mic socket
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Ricoh GR Digital III vs Sigma DP2x Specifications

Detailed spec comparison table for Ricoh GR Digital III and Sigma DP2x
 Ricoh GR Digital IIISigma DP2x
General Information
Make Ricoh Sigma
Model type Ricoh GR Digital III Sigma DP2x
Category Small Sensor Compact Large Sensor Compact
Revealed 2009-07-27 2011-02-08
Physical type Compact Large Sensor Compact
Sensor Information
Chip GR engine III True II
Sensor type CCD CMOS (Foveon X3)
Sensor size 1/1.7" APS-C
Sensor dimensions 7.44 x 5.58mm 20.7 x 13.8mm
Sensor surface area 41.5mm² 285.7mm²
Sensor resolution 10 megapixel 5 megapixel
Anti alias filter
Aspect ratio 1:1, 4:3 and 3:2 3:2 and 16:9
Highest Possible resolution 3648 x 2736 2640 x 1760
Maximum native ISO 1600 3200
Min native ISO 64 100
RAW format
Autofocusing
Manual focusing
AF touch
Continuous AF
AF single
AF tracking
AF selectice
AF center weighted
AF multi area
Live view AF
Face detection focusing
Contract detection focusing
Phase detection focusing
Cross type focus points - -
Lens
Lens support fixed lens fixed lens
Lens zoom range 28mm (1x) 41mm (1x)
Largest aperture f/1.9 -
Macro focusing range 1cm -
Focal length multiplier 4.8 1.7
Screen
Type of screen Fixed Type Fixed Type
Screen size 3 inches 2.5 inches
Resolution of screen 920k dots 230k dots
Selfie friendly
Liveview
Touch functionality
Viewfinder Information
Viewfinder type Optical (optional) None
Features
Min shutter speed 1 secs 15 secs
Max shutter speed 1/2000 secs 1/2000 secs
Continuous shutter rate - 3.0 frames per second
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes Yes
Set WB
Image stabilization
Built-in flash
Flash distance 3.00 m 4.30 m
Flash options Auto, On, Off, Red-Eye, Slow Sync, Manual Forced Flash, Red-Eye Reduction, Slow Synchro
Hot shoe
AEB
White balance bracketing
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) 320 x 240
Maximum video resolution 640x480 320x240
Video file format - Motion JPEG
Mic port
Headphone port
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 lbs) 280 gr (0.62 lbs)
Dimensions 109 x 59 x 26mm (4.3" x 2.3" x 1.0") 113 x 60 x 56mm (4.4" x 2.4" x 2.2")
DXO scores
DXO Overall rating not tested not tested
DXO Color Depth rating not tested not tested
DXO Dynamic range rating not tested not tested
DXO Low light rating not tested not tested
Other
Self timer Yes (2 or 10 sec) Yes (2 or 10 sec)
Time lapse shooting
Storage type SD/SDHC, Internal SD/SDHC/MMC
Card slots 1 1
Pricing at release $399 $699