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Ricoh GR Digital III vs Sigma DP2

Portability
92
Imaging
34
Features
35
Overall
34
Ricoh GR Digital III front
 
Sigma DP2 front
Portability
86
Imaging
44
Features
28
Overall
37

Ricoh GR Digital III vs Sigma DP2 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
  • Released July 2009
  • Replacement is Ricoh GR Digital IV
Sigma DP2
(Full Review)
  • 5MP - APS-C Sensor
  • 2.5" Fixed Screen
  • ISO 200 - 3200
  • 320 x 240 video
  • 41mm (F) lens
  • 280g - 113 x 60 x 56mm
  • Launched September 2009
  • Later Model is Sigma DP2s
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Ricoh GR Digital III vs Sigma DP2 Overview

Here, we will be analyzing the Ricoh GR Digital III and Sigma DP2, former is a Small Sensor Compact while the latter is a Large Sensor Compact by rivals Ricoh and Sigma. There exists a large gap between the resolutions of the GR Digital III (10MP) and DP2 (5MP) and the GR Digital III (1/1.7") and DP2 (APS-C) offer different sensor size.

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The GR Digital III was manufactured very close to the DP2 and they are of a similar age. Both of these cameras feature different body design with the Ricoh GR Digital III being a Compact camera and the Sigma DP2 being a Large Sensor Compact camera.

Before diving into a comprehensive comparison, here is a concise highlight of how the GR Digital III matches up vs the DP2 in regards to portability, imaging, features and an overall score.

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Reasons to pick Ricoh GR Digital III over the Sigma DP2

 GR Digital III DP2 
Screen size3"2.5"Bigger screen (+0.5")
Screen resolution920k230kSharper screen (+690k dot)

Reasons to pick Sigma DP2 over the Ricoh GR Digital III

 DP2 GR Digital III 

Common features in the Ricoh GR Digital III and Sigma DP2

 GR Digital III DP2 
LaunchedJuly 2009September 2009Similar age
Focus manually More accurate focusing
Screen typeFixed Fixed Fixed screen
Selfie screen Neither has selfie screen
Touch friendly screen Neither has Touch friendly screen

Ricoh GR Digital III vs Sigma DP2 Physical Comparison

If you're intending to carry around your camera, you need to take into account its weight and measurements. The Ricoh GR Digital III has outside dimensions of 109mm x 59mm x 26mm (4.3" x 2.3" x 1.0") with a weight of 208 grams (0.46 lbs) whilst the Sigma DP2 has proportions of 113mm x 60mm x 56mm (4.4" x 2.4" x 2.2") along with a weight of 280 grams (0.62 lbs).

Check out the Ricoh GR Digital III and Sigma DP2 in our brand new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Always remember, the weight of an ILC will vary depending on the lens you are employing during that time. The following is a front view physical size comparison of the GR Digital III versus the DP2.

Ricoh GR Digital III vs Sigma DP2 size comparison

Taking into account dimensions and weight, the portability grade of the GR Digital III and DP2 is 92 and 86 respectively.

Ricoh GR Digital III vs Sigma DP2 top view buttons comparison

Ricoh GR Digital III vs Sigma DP2 Sensor Comparison

More often than not, it's hard to visualize the contrast between sensor sizes purely by checking a spec sheet. The image here will help offer you a stronger sense of the sensor sizes in the GR Digital III and DP2.

Clearly, both of these cameras feature different megapixel count and different sensor sizes. The GR Digital III because of its tinier sensor is going to make achieving shallower depth of field trickier and the Ricoh GR Digital III will give you greater detail due to its extra 5MP. Higher resolution can also enable you to crop photographs way more aggressively.

Ricoh GR Digital III vs Sigma DP2 sensor size comparison

Ricoh GR Digital III vs Sigma DP2 Screen and ViewFinder

Ricoh GR Digital III vs Sigma DP2 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Ricoh GR Digital III Portrait photography features
Sigma DP2 Portrait photography features
40
focusing manually
delivers RAW files
MP count low (10 megapixels)
very small sensor (1/1.7")
56
focusing manually
good sensor size (APS-C)
supports RAW formats
megapixel count low (5MP)
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Street Comparison

Ricoh GR Digital III Street photography factors
Sigma DP2 Street photography factors
55
delivers RAW files
screen is fixed
lack of image stabilization
very small sensor (1/1.7")
67
good sensor size (APS-C)
supports RAW formats
lighter than average (280 grams)
screen is fixed
does not have image stabilization
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Sports Comparison

Ricoh GR Digital III Sports photography advice
Sigma DP2 Sports photography advice
17
fixed focal length (28mm)
lack of image stabilization
MP count low (10MP)
very small sensor (1/1.7")
lack of phase detect autofocus
30
good sensor size (APS-C)
focal length is fixed (41mm)
max frames per second very slow (3.0 frames per second)
does not have image stabilization
megapixel count low (5MP)
does not have phase detect auto focus
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Travel Comparison

Travel photography with Ricoh GR Digital III
Travel photography with Sigma DP2
63
has built in flash
great max aperture (f1.9)
MP count low (10 megapixels)
does not offer selfie friendly display
67
lighter than average (280g)
has built in flash
very good max aperture (f)
megapixel count low (5MP)
does not have selfie friendly screen
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Landscape Comparison

Ricoh GR Digital III Landscape photography highlights
Sigma DP2 Landscape photography highlights
45
focusing manually
great max aperture (f1.9)
screen is a good size (3")
delivers RAW files
lens is fixed (fixed lens mount)
fixed focal length (28mm)
lack of image stabilization
MP count low (10 megapixels)
very small sensor (1/1.7")
48
focusing manually
very good max aperture (f)
good sensor size (APS-C)
supports RAW formats
can't switch lenses (fixed lens mount)
focal length is fixed (41mm)
tiny screen (2.5 inch)
does not have image stabilization
megapixel count low (5 megapixels)
Photography Glossary

Vlogging Comparison

Ricoh GR Digital III Vlogging factors
Sigma DP2 Vlogging factors
25
great max aperture (f1.9)
does not offer selfie friendly display
lack of image stabilization
video resolution low (640 x 480 resolution)
doesn't have microphone support
28
very good max aperture (f)
lighter than average (280 grams)
does not have selfie friendly screen
does not have image stabilization
low quality video (320 x 240 resolution)
no external microphone port
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Ricoh GR Digital III vs Sigma DP2 Specifications

Detailed spec comparison table for Ricoh GR Digital III and Sigma DP2
 Ricoh GR Digital IIISigma DP2
General Information
Make Ricoh Sigma
Model type Ricoh GR Digital III Sigma DP2
Category Small Sensor Compact Large Sensor Compact
Released 2009-07-27 2009-09-21
Body design Compact Large Sensor Compact
Sensor Information
Chip GR engine III -
Sensor type CCD CMOS (Foveon X3)
Sensor size 1/1.7" APS-C
Sensor measurements 7.44 x 5.58mm 20.7 x 13.8mm
Sensor surface area 41.5mm² 285.7mm²
Sensor resolution 10 megapixels 5 megapixels
Anti alias filter
Aspect ratio 1:1, 4:3 and 3:2 3:2 and 16:9
Peak resolution 3648 x 2736 2640 x 1760
Highest native ISO 1600 3200
Min native ISO 64 200
RAW photos
Autofocusing
Manual focusing
Autofocus touch
Continuous autofocus
Single autofocus
Autofocus tracking
Autofocus selectice
Center weighted autofocus
Autofocus multi area
Live view autofocus
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Lens
Lens support fixed lens fixed lens
Lens zoom range 28mm (1x) 41mm (1x)
Maximal aperture f/1.9 -
Macro focusing distance 1cm -
Focal length multiplier 4.8 1.7
Screen
Range of screen Fixed Type Fixed Type
Screen sizing 3 inches 2.5 inches
Screen resolution 920 thousand dot 230 thousand dot
Selfie friendly
Liveview
Touch friendly
Viewfinder Information
Viewfinder Optical (optional) None
Features
Min shutter speed 1 seconds 15 seconds
Max shutter speed 1/2000 seconds 1/2000 seconds
Continuous shutter speed - 3.0 frames/s
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Custom white balance
Image stabilization
Integrated flash
Flash distance 3.00 m 4.30 m
Flash settings Auto, On, Off, Red-Eye, Slow Sync, Manual Forced Flash, Red-Eye Reduction, Slow Synchro
Hot shoe
Auto exposure bracketing
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 (30 fps)
Highest video resolution 640x480 320x240
Video file format - Motion JPEG
Microphone jack
Headphone jack
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 seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 208 gr (0.46 pounds) 280 gr (0.62 pounds)
Physical 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 recording
Storage media SD/SDHC, Internal SD/SDHC/MMC card
Storage slots One One
Launch cost $399 $649