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Ricoh GR Digital III vs Sigma SD9

Portability
92
Imaging
34
Features
35
Overall
34
Ricoh GR Digital III front
 
Sigma SD9 front
Portability
54
Imaging
39
Features
27
Overall
34

Ricoh GR Digital III vs Sigma SD9 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
  • Introduced July 2009
  • Successor is Ricoh GR Digital IV
Sigma SD9
(Full Review)
  • 3MP - APS-C Sensor
  • 1.8" Fixed Display
  • ISO 100 - 400
  • 1/6000s Max Shutter
  • No Video
  • Sigma SA Mount
  • 950g - 152 x 120 x 79mm
  • Introduced November 2002
  • Later Model is Sigma SD10
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Ricoh GR Digital III vs Sigma SD9 Overview

In this article, we are comparing the Ricoh GR Digital III and Sigma SD9, one being a Small Sensor Compact and the other is a Advanced DSLR by brands Ricoh and Sigma. There is a huge difference among the resolutions of the GR Digital III (10MP) and SD9 (3MP) and the GR Digital III (1/1.7") and SD9 (APS-C) come with different sensor sizes.

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The GR Digital III was unveiled 6 years later than the SD9 and that is a fairly significant gap as far as camera tech is concerned. Each of the cameras offer different body type with the Ricoh GR Digital III being a Compact camera and the Sigma SD9 being a Mid-size SLR camera.

Before delving in to a more detailed comparison, below is a short introduction of how the GR Digital III grades against the SD9 with regard to portability, imaging, features and an overall rating.

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Reasons to pick Ricoh GR Digital III over the Sigma SD9

 GR Digital III SD9 
IntroducedJuly 2009November 2002Fresher by 82 months
Display sizing3"1.8"Larger display (+1.2")
Display resolution920k130kClearer display (+790k dot)

Reasons to pick Sigma SD9 over the Ricoh GR Digital III

 SD9 GR Digital III 

Common features in the Ricoh GR Digital III and Sigma SD9

 GR Digital III SD9 
Manually focus Very accurate focus
Display typeFixed Fixed Fixed display
Selfie screen Neither offers selfie screen
Touch friendly display Lacking Touch friendly display

Ricoh GR Digital III vs Sigma SD9 Physical Comparison

If you're going to carry your camera regularly, you will want to factor in its weight and measurements. The Ricoh GR Digital III offers physical measurements of 109mm x 59mm x 26mm (4.3" x 2.3" x 1.0") accompanied by a weight of 208 grams (0.46 lbs) and the Sigma SD9 has proportions of 152mm x 120mm x 79mm (6.0" x 4.7" x 3.1") along with a weight of 950 grams (2.09 lbs).

Check out the Ricoh GR Digital III and Sigma SD9 in the new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Keep in mind, the weight of an Interchangeable Lens Camera will change dependant on the lens you choose at the time. The following is the front view sizing comparison of the GR Digital III versus the SD9.

Ricoh GR Digital III vs Sigma SD9 size comparison

Taking into account size and weight, the portability grade of the GR Digital III and SD9 is 92 and 54 respectively.

Ricoh GR Digital III vs Sigma SD9 top view buttons comparison

Ricoh GR Digital III vs Sigma SD9 Sensor Comparison

In many cases, it can be tough to visualize the gap in sensor sizing merely by researching a spec sheet. The photograph underneath will provide you a more clear sense of the sensor measurements in the GR Digital III and SD9.

Clearly, the two cameras enjoy different resolutions and different sensor sizing. The GR Digital III using its smaller sensor is going to make shooting shallow DOF trickier and the Ricoh GR Digital III will result in more detail having an extra 7 Megapixels. Greater resolution will also help you crop photos far more aggressively. The younger GR Digital III should have a benefit when it comes to sensor innovation.

Ricoh GR Digital III vs Sigma SD9 sensor size comparison

Ricoh GR Digital III vs Sigma SD9 Screen and ViewFinder

Ricoh GR Digital III vs Sigma SD9 Screen and Viewfinder comparison
Photography Glossary

Photography Type Scores

Portrait Comparison

Ricoh GR Digital III Portrait photography features
Sigma SD9 Portrait photography features
40
manual focus
supports RAW files
megapixel count low (10MP)
tiny sensor (1/1.7")
47
manual focus
sensor size is decent (APS-C)
saves RAW files
doesn't have liveview
MP count low (3 megapixels)
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Street Comparison

Ricoh GR Digital III as a Street photography camera
Sigma SD9 as a Street photography camera
55
supports RAW files
no moving screen
does not have image stabilization
tiny sensor (1/1.7")
43
sensor size is decent (APS-C)
saves RAW files
screen does not articulate
no image stabilization
more heavy than competition (950 grams)
max ISO too low (400)
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Sports Comparison

Ricoh GR Digital III Sports photography factors
Sigma SD9 Sports photography factors
17
focal length is fixed (28mm)
does not have image stabilization
megapixel count low (10 megapixels)
tiny sensor (1/1.7")
lacks phase detect auto focus
36
high shutter speed (1/6,000 seconds)
sensor size is decent (APS-C)
doesn't have liveview
no image stabilization
MP count low (3 megapixels)
doesn't have phase detect autofocus
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Travel Comparison

Ricoh GR Digital III as a Travel photography camera
Sigma SD9 as a Travel photography camera
63
built-in flash
great max aperture (f1.9)
megapixel count low (10MP)
does not offer selfie friendly screen
29
lack of Timelapse function
more heavy than competition (950g)
MP count low (3 megapixels)
doesn't have selfie friendly screen
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Landscape Comparison

Ricoh GR Digital III Landscape photography features
Sigma SD9 Landscape photography features
45
manual focus
great max aperture (f1.9)
screen is a decent size (3")
supports RAW files
lens is fixed (fixed lens mount)
focal length is fixed (28mm)
does not have image stabilization
megapixel count low (10MP)
tiny sensor (1/1.7")
41
manual focus
swap lenses (Sigma SA mount)
sensor size is decent (APS-C)
saves RAW files
small screen (1.8 inch)
doesn't have liveview
no image stabilization
MP count low (3MP)
max ISO too low (400)
lack of Timelapse function
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Vlogging Comparison

Ricoh GR Digital III Vlogging highlights
Sigma SD9 Vlogging highlights
25
great max aperture (f1.9)
does not offer selfie friendly screen
does not have image stabilization
video res low (640 x 480 pixels)
doesn't have external mic support
9
lack of video recording
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Ricoh GR Digital III vs Sigma SD9 Specifications

Detailed spec comparison table for Ricoh GR Digital III and Sigma SD9
 Ricoh GR Digital IIISigma SD9
General Information
Brand Ricoh Sigma
Model Ricoh GR Digital III Sigma SD9
Class Small Sensor Compact Advanced DSLR
Introduced 2009-07-27 2002-11-26
Body design Compact Mid-size SLR
Sensor Information
Processor 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 3 megapixels
Anti aliasing filter
Aspect ratio 1:1, 4:3 and 3:2 3:2
Full resolution 3648 x 2736 2268 x 1512
Max native ISO 1600 400
Lowest native ISO 64 100
RAW files
Autofocusing
Focus manually
AF touch
Continuous AF
Single AF
AF tracking
AF selectice
Center weighted AF
AF multi area
Live view AF
Face detection AF
Contract detection AF
Phase detection AF
Lens
Lens mounting type fixed lens Sigma SA
Lens focal range 28mm (1x) -
Max aperture f/1.9 -
Macro focus range 1cm -
Available lenses - 76
Focal length multiplier 4.8 1.7
Screen
Screen type Fixed Type Fixed Type
Screen diagonal 3 inch 1.8 inch
Resolution of screen 920k dot 130k dot
Selfie friendly
Liveview
Touch capability
Viewfinder Information
Viewfinder Optical (optional) Optical (pentaprism)
Viewfinder coverage - 98 percent
Viewfinder magnification - 0.77x
Features
Slowest shutter speed 1s 30s
Maximum shutter speed 1/2000s 1/6000s
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Set WB
Image stabilization
Inbuilt flash
Flash range 3.00 m no built-in flash
Flash settings Auto, On, Off, Red-Eye, Slow Sync, Manual -
External flash
Auto exposure bracketing
White balance bracketing
Maximum flash sync - 1/180s
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Video resolutions 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps) -
Max video resolution 640x480 None
Microphone input
Headphone input
Connectivity
Wireless None None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 1.0 (1.5 Mbit/sec)
GPS None None
Physical
Environmental seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 208g (0.46 lbs) 950g (2.09 lbs)
Dimensions 109 x 59 x 26mm (4.3" x 2.3" x 1.0") 152 x 120 x 79mm (6.0" x 4.7" x 3.1")
DXO scores
DXO All around score not tested not tested
DXO Color Depth score not tested not tested
DXO Dynamic range score not tested not tested
DXO Low light score not tested not tested
Other
Self timer Yes (2 or 10 sec) Yes (10 sec)
Time lapse feature
Type of storage SD/SDHC, Internal Compact Flash Type I or II
Storage slots Single Single
Launch cost $399 $3,001