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Ricoh GR III vs Sigma DP3 Merrill

Portability
90
Imaging
69
Features
62
Overall
66
Ricoh GR III front
 
Sigma DP3 Merrill front
Portability
83
Imaging
56
Features
33
Overall
46

Ricoh GR III vs Sigma DP3 Merrill Key Specs

Ricoh GR III
(Full Review)
  • 24MP - APS-C Sensor
  • 3" Fixed Display
  • ISO 100 - 102400
  • Sensor-shift Image Stabilization
  • No Anti-Alias Filter
  • 1920 x 1080 video
  • 28mm (F2.8-16) lens
  • 257g - 109 x 62 x 33mm
  • Released September 2018
  • Superseded the Ricoh GR III
  • Newer Model is Ricoh GR III
Sigma DP3 Merrill
(Full Review)
  • 15MP - APS-C Sensor
  • 3" Fixed Display
  • ISO 100 - 6400
  • 640 x 480 video
  • 75mm (F2.8) lens
  • 330g - 122 x 67 x 59mm
  • Launched January 2013
  • Succeeded the Sigma DP2 Merrill
Photography Glossary

Ricoh GR III vs Sigma DP3 Merrill Overview

Lets look more in depth at the Ricoh GR III and Sigma DP3 Merrill, both Large Sensor Compact cameras by competitors Ricoh and Sigma. There exists a big gap among the sensor resolutions of the GR III (24MP) and DP3 Merrill (15MP) but both cameras posses the same sensor size (APS-C).

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The GR III was unveiled 5 years after the DP3 Merrill which is a fairly big gap as far as camera technology is concerned. Both the cameras have the same body design (Large Sensor Compact).

Before we go right into a more detailed comparison, here is a concise overview of how the GR III scores against the DP3 Merrill with regard to portability, imaging, features and an overall mark.

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Reasons to pick Ricoh GR III over the Sigma DP3 Merrill

 GR III DP3 Merrill 
LaunchedSeptember 2018January 2013Newer by 70 months
Display resolution1037k920kCrisper display (+117k dot)
Touch friendly display Easily navigate

Reasons to pick Sigma DP3 Merrill over the Ricoh GR III

 DP3 Merrill GR III 

Common features in the Ricoh GR III and Sigma DP3 Merrill

 GR III DP3 Merrill 
Focus manually More exact focus
Display typeFixed Fixed Fixed display
Display dimensions3"3"Equal display size
Selfie screen Neither offers selfie screen

Ricoh GR III vs Sigma DP3 Merrill Physical Comparison

For anyone who is aiming to travel with your camera regularly, you're going to have to consider its weight and dimensions. The Ricoh GR III offers outside measurements of 109mm x 62mm x 33mm (4.3" x 2.4" x 1.3") and a weight of 257 grams (0.57 lbs) and the Sigma DP3 Merrill has dimensions of 122mm x 67mm x 59mm (4.8" x 2.6" x 2.3") accompanied by a weight of 330 grams (0.73 lbs).

Check out the Ricoh GR III and Sigma DP3 Merrill in the all new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an Interchangeable Lens Camera will vary dependant on the lens you are utilising at the time. Below is a front view proportions comparison of the GR III and the DP3 Merrill.

Ricoh GR III vs Sigma DP3 Merrill size comparison

Factoring in dimensions and weight, the portability score of the GR III and DP3 Merrill is 90 and 83 respectively.

Ricoh GR III vs Sigma DP3 Merrill top view buttons comparison

Ricoh GR III vs Sigma DP3 Merrill Sensor Comparison

Typically, its hard to visualise the difference in sensor dimensions purely by looking through a spec sheet. The picture here will help offer you a more clear sense of the sensor measurements in the GR III and DP3 Merrill.

Clearly, both of those cameras have the same sensor dimensions but not the same megapixels. You should expect to see the Ricoh GR III to result in more detail having an extra 9 Megapixels. Greater resolution will help you crop pics a bit more aggressively. The fresher GR III will have an advantage when it comes to sensor technology.

Ricoh GR III vs Sigma DP3 Merrill sensor size comparison

Ricoh GR III vs Sigma DP3 Merrill Screen and ViewFinder

Ricoh GR III vs Sigma DP3 Merrill Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Ricoh GR III Portrait photography advice
Sigma DP3 Merrill Portrait photography advice
81
focusing manually
sensor resolution is decent (24MP)
nice sensor size (APS-C)
supports face detection focus
supports RAW files
73
focusing manually
MP count good (15 megapixels)
good sensor size (APS-C)
supports RAW formats
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Street Comparison

Ricoh GR III Street photography advice
Sigma DP3 Merrill Street photography advice
84
has image stabilization (Sensor-shift)
nice sensor size (APS-C)
supports RAW files
features focus via touch
lighter than competition (257g)
very good ISO range (102,400)
fixed screen
65
good sensor size (APS-C)
supports RAW formats
fixed screen
no image stabilization
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Sports Comparison

Ricoh GR III Sports photography details
Sigma DP3 Merrill Sports photography details
76
has image stabilization (Sensor-shift)
sensor resolution is decent (24 megapixels)
nice sensor size (APS-C)
supports tracking autofocus
supports phase detect auto focus
focal length is fixed (28mm)
44
MP count good (15 megapixels)
good sensor size (APS-C)
can't change focal length (75mm)
continuous shooting slow (4.0 fps)
no image stabilization
doesn't have phase detect AF
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Travel Comparison

Ricoh GR III as a Travel photography camera
Sigma DP3 Merrill as a Travel photography camera
69
lighter than competition (257 grams)
features focus via touch
sensor resolution is decent (24 megapixels)
no Timelapse mode
does not have selfie friendly screen
sluggish max aperture (f2.8)
54
MP count good (15MP)
missing Timelapse mode
does not feature selfie friendly display
sluggish max aperture (f2.8)
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Landscape Comparison

Landscape photography with Ricoh GR III
Landscape photography with Sigma DP3 Merrill
69
focusing manually
decent sized screen (3")
has image stabilization (Sensor-shift)
sensor resolution is decent (24MP)
nice sensor size (APS-C)
no low pass filter
very good ISO range (102,400)
supports RAW files
cannot switch lenses (fixed lens mount)
focal length is fixed (28mm)
sluggish max aperture (f2.8)
no Timelapse mode
55
focusing manually
nice screen size (3 inch)
MP count good (15 megapixels)
good sensor size (APS-C)
supports RAW formats
fixed lens (fixed lens mount)
can't change focal length (75mm)
sluggish max aperture (f2.8)
no image stabilization
missing Timelapse mode
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Vlogging Comparison

Vlogging with Ricoh GR III
Vlogging with Sigma DP3 Merrill
37
touchscreen enabled
has image stabilization (Sensor-shift)
supports face detection focus
high quality video (1920 x 1080 pixels)
lighter than competition (257g)
sluggish max aperture (f2.8)
does not have selfie friendly screen
no external microphone port
22
sluggish max aperture (f2.8)
does not feature selfie friendly display
no image stabilization
low res video (640 x 480 pixels)
missing external microphone jack
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Ricoh GR III vs Sigma DP3 Merrill Specifications

Detailed spec comparison table for Ricoh GR III and Sigma DP3 Merrill
 Ricoh GR IIISigma DP3 Merrill
General Information
Company Ricoh Sigma
Model type Ricoh GR III Sigma DP3 Merrill
Type Large Sensor Compact Large Sensor Compact
Released 2018-09-25 2013-01-08
Body design Large Sensor Compact Large Sensor Compact
Sensor Information
Chip - Dual TRUE II engine
Sensor type CMOS CMOS (Foveon X3)
Sensor size APS-C APS-C
Sensor measurements 23.5 x 15.6mm 24 x 16mm
Sensor area 366.6mm² 384.0mm²
Sensor resolution 24MP 15MP
Anti alias filter
Aspect ratio 1:1 and 3:2 -
Max resolution 6000 x 4000 4704 x 3136
Max native ISO 102400 6400
Minimum native ISO 100 100
RAW files
Autofocusing
Focus manually
AF touch
Continuous AF
AF single
AF tracking
Selective AF
Center weighted AF
AF multi area
AF live view
Face detect focusing
Contract detect focusing
Phase detect focusing
Cross type focus points - -
Lens
Lens support fixed lens fixed lens
Lens zoom range 28mm (1x) 75mm (1x)
Maximal aperture f/2.8-16 f/2.8
Macro focusing range 6cm -
Focal length multiplier 1.5 1.5
Screen
Range of display Fixed Type Fixed Type
Display sizing 3 inch 3 inch
Display resolution 1,037k dot 920k dot
Selfie friendly
Liveview
Touch operation
Viewfinder Information
Viewfinder Optical (optional) None
Features
Min shutter speed 30 secs -
Max shutter speed 1/4000 secs -
Continuous shutter speed - 4.0 frames per sec
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Change WB
Image stabilization
Built-in flash
Flash distance no built-in flash no built-in flash
Flash modes Auto, Flash On, Flash On+Red-eye, Slow-speed Sync, Slow Sync+Red-eye no built-in flash
External flash
AE bracketing
White balance bracketing
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Video resolutions 1920 x 1080 @ 60p, MOV, H.264, Linear PCM 640 x 480
Max video resolution 1920x1080 640x480
Video file format MPEG-4, H.264 Motion JPEG
Microphone input
Headphone input
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB Yes USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 257 grams (0.57 lb) 330 grams (0.73 lb)
Physical dimensions 109 x 62 x 33mm (4.3" x 2.4" x 1.3") 122 x 67 x 59mm (4.8" x 2.6" x 2.3")
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 -
Time lapse feature
Type of storage Internal, SD/SDHC/SDXC (UHS-I supported) -
Storage slots One One
Retail pricing $900 $1,353