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Ricoh GR vs Sigma SD15

Portability
90
Imaging
57
Features
54
Overall
55
Ricoh GR front
 
Sigma SD15 front
Portability
59
Imaging
44
Features
45
Overall
44

Ricoh GR vs Sigma SD15 Key Specs

Ricoh GR
(Full Review)
  • 16MP - APS-C Sensor
  • 3" Fixed Display
  • ISO 100 - 25600
  • 1920 x 1080 video
  • 28mm (F2.8) lens
  • 245g - 117 x 61 x 35mm
  • Introduced April 2013
  • New Model is Ricoh GR II
Sigma SD15
(Full Review)
  • 5MP - APS-C Sensor
  • 3" Fixed Screen
  • ISO 100 - 1600 (Boost to 3200)
  • No Video
  • Sigma SA Mount
  • 750g - 144 x 107 x 81mm
  • Launched February 2010
  • Earlier Model is Sigma SD14
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Ricoh GR vs Sigma SD15 Overview

Below is a in-depth assessment of the Ricoh GR versus Sigma SD15, former being a Large Sensor Compact while the latter is a Advanced DSLR by rivals Ricoh and Sigma. There exists a large gap among the resolutions of the GR (16MP) and SD15 (5MP) but they feature the exact same sensor sizes (APS-C).

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The GR was manufactured 3 years later than the SD15 and that is a fairly serious difference as far as camera technology is concerned. The two cameras come with different body type with the Ricoh GR being a Large Sensor Compact camera and the Sigma SD15 being a Mid-size SLR camera.

Before diving through a step-by-step comparison, below is a brief summary of how the GR matches up versus the SD15 when considering portability, imaging, features and an overall grade.

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Reasons to pick Ricoh GR over the Sigma SD15

 GR SD15 
LaunchedApril 2013February 2010More recent by 39 months
Screen resolution1230k460kSharper screen (+770k dot)

Reasons to pick Sigma SD15 over the Ricoh GR

 SD15 GR 

Common features in the Ricoh GR and Sigma SD15

 GR SD15 
Manually focus Very accurate focusing
Screen typeFixed Fixed Fixed screen
Screen dimension3"3"Identical screen dimensions
Selfie screen Neither has selfie screen
Touch screen Neither has Touch screen

Ricoh GR vs Sigma SD15 Physical Comparison

For those who are aiming to lug around your camera, you're going to have to consider its weight and size. The Ricoh GR has physical dimensions of 117mm x 61mm x 35mm (4.6" x 2.4" x 1.4") along with a weight of 245 grams (0.54 lbs) while the Sigma SD15 has specifications of 144mm x 107mm x 81mm (5.7" x 4.2" x 3.2") having a weight of 750 grams (1.65 lbs).

Check out the Ricoh GR versus Sigma SD15 in our completely new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember that, the weight of an ILC will change dependant on the lens you are employing at the time. Here is the front view measurements comparison of the GR vs the SD15.

Ricoh GR vs Sigma SD15 size comparison

Considering dimensions and weight, the portability score of the GR and SD15 is 90 and 59 respectively.

Ricoh GR vs Sigma SD15 top view buttons comparison

Ricoh GR vs Sigma SD15 Sensor Comparison

Typically, it's hard to envision the gap in sensor measurements merely by going through specifications. The photograph underneath should offer you a much better sense of the sensor sizes in the GR and SD15.

To sum up, both of these cameras have got the exact same sensor measurements albeit not the same resolution. You can expect the Ricoh GR to produce extra detail due to its extra 11MP. Higher resolution will also help you crop pictures much more aggressively. The more modern GR is going to have a benefit when it comes to sensor innovation.

Ricoh GR vs Sigma SD15 sensor size comparison

Ricoh GR vs Sigma SD15 Screen and ViewFinder

Ricoh GR vs Sigma SD15 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Ricoh GR Portrait photography info
Sigma SD15 Portrait photography info
74
has manual focus
flash sync speed is above average (1/4,000s)
decent megapixels (16 megapixels)
sensor size is nice (APS-C)
saves RAW files
50
focusing manually
sensor size is good (APS-C)
saves RAW files
doesn't have liveview
low megapixels (5 megapixels)
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Street Comparison

Ricoh GR as a Street photography camera
Sigma SD15 as a Street photography camera
74
sensor size is nice (APS-C)
saves RAW files
lighter than competitors (245g)
good ISO range (25,600)
no moving screen
does not have image stabilization
52
sensor size is good (APS-C)
saves RAW files
no moving screen
no image stabilization
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Sports Comparison

Ricoh GR Sports photography advice
Sigma SD15 Sports photography advice
45
decent megapixels (16 megapixels)
sensor size is nice (APS-C)
can't change focal length (28mm)
continuous shooting slow (4.0 fps)
does not have image stabilization
no phase detect AF
38
sensor size is good (APS-C)
sensor has phase detect AF
doesn't have liveview
painfully slow continuous shooting (3.0 frames/s)
no image stabilization
low megapixels (5MP)
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Travel Comparison

Ricoh GR Travel photography details
Sigma SD15 Travel photography details
71
lighter than competitors (245g)
decent megapixels (16 megapixels)
flash built-in
screen isn't selfie friendly
slow maximum aperture (f2.8)
42
flash built-in
doesn't have Timelapse function
low megapixels (5MP)
doesn't offer selfie friendly display
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Landscape Comparison

Landscape photography with Ricoh GR
Landscape photography with Sigma SD15
61
has manual focus
screen size is good (3 inches)
decent megapixels (16 megapixels)
sensor size is nice (APS-C)
good ISO range (25,600)
saves RAW files
cannot swap lenses (fixed lens mount)
can't change focal length (28mm)
slow maximum aperture (f2.8)
does not have image stabilization
51
focusing manually
switch lenses (Sigma SA mount)
screen is a good size (3")
sensor size is good (APS-C)
saves RAW files
doesn't have liveview
no image stabilization
low megapixels (5MP)
doesn't have Timelapse function
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Vlogging Comparison

Ricoh GR Vlogging features
Sigma SD15 Vlogging features
30
video res high (1920 x 1080 pixels)
lighter than competitors (245g)
slow maximum aperture (f2.8)
screen isn't selfie friendly
does not have image stabilization
lack of microphone jack
9
no video recording
Photography Glossary

Ricoh GR vs Sigma SD15 Specifications

Detailed spec comparison table for Ricoh GR and Sigma SD15
 Ricoh GRSigma SD15
General Information
Make Ricoh Sigma
Model Ricoh GR Sigma SD15
Category Large Sensor Compact Advanced DSLR
Introduced 2013-04-17 2010-02-20
Physical type Large Sensor Compact Mid-size SLR
Sensor Information
Processor Chip - True II
Sensor type CMOS CMOS (Foveon X3)
Sensor size APS-C APS-C
Sensor measurements 23.7 x 15.7mm 20.7 x 13.8mm
Sensor area 372.1mm² 285.7mm²
Sensor resolution 16 megapixel 5 megapixel
Anti aliasing filter
Aspect ratio 1:1, 4:3 and 3:2 3:2
Maximum resolution 4928 x 3264 2640 x 1760
Maximum native ISO 25600 1600
Maximum boosted ISO - 3200
Minimum native ISO 100 100
RAW format
Minimum boosted ISO - 50
Autofocusing
Manual focus
Autofocus touch
Autofocus continuous
Single autofocus
Autofocus tracking
Selective autofocus
Center weighted autofocus
Multi area autofocus
Autofocus live view
Face detect focus
Contract detect focus
Phase detect focus
Cross focus points - -
Lens
Lens mounting type fixed lens Sigma SA
Lens focal range 28mm (1x) -
Max aperture f/2.8 -
Total lenses - 76
Focal length multiplier 1.5 1.7
Screen
Type of display Fixed Type Fixed Type
Display diagonal 3 inch 3 inch
Resolution of display 1,230k dots 460k dots
Selfie friendly
Liveview
Touch function
Display tech TFT LCD -
Viewfinder Information
Viewfinder type Optical (optional) Optical (pentaprism)
Viewfinder coverage - 96 percent
Viewfinder magnification - 0.6x
Features
Slowest shutter speed 300s 30s
Maximum shutter speed 1/4000s 1/4000s
Continuous shooting rate 4.0 frames/s 3.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Custom white balance
Image stabilization
Inbuilt flash
Flash range 5.40 m (at ISO 100) -
Hot shoe
AEB
WB bracketing
Maximum flash synchronize 1/4000s 1/180s
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions 1920 x 1080 (30, 25, 24 fps), 1280 x 720 ( 60, 50, 30, 25, 24 fps), 640 x 480 (30, 25, 24 fps) -
Maximum video resolution 1920x1080 None
Video format MPEG-4 -
Microphone port
Headphone port
Connectivity
Wireless Eye-Fi Connected None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 245 gr (0.54 lb) 750 gr (1.65 lb)
Dimensions 117 x 61 x 35mm (4.6" x 2.4" x 1.4") 144 x 107 x 81mm (5.7" x 4.2" x 3.2")
DXO scores
DXO All around score 78 not tested
DXO Color Depth score 23.6 not tested
DXO Dynamic range score 13.5 not tested
DXO Low light score 972 not tested
Other
Battery life 290 shots -
Form of battery Battery Pack -
Battery model DB65 -
Self timer Yes Yes (10 sec)
Time lapse feature
Storage type SD, SDHC, SDXC SD/SDHC card
Card slots 1 1
Retail cost $971 $1,500