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Ricoh GXR Mount A12 vs Sigma DP2x

Portability
84
Imaging
53
Features
39
Overall
47
Ricoh GXR Mount A12 front
 
Sigma DP2x front
Portability
86
Imaging
45
Features
31
Overall
39

Ricoh GXR Mount A12 vs Sigma DP2x Key Specs

Ricoh GXR Mount A12
(Full Review)
  • 12MP - APS-C Sensor
  • 3" Fixed Display
  • ISO 200 - 3200
  • 1/9000s Maximum Shutter
  • 1280 x 720 video
  • ()mm (F) lens
  • 370g - 120 x 70 x 45mm
  • Revealed August 2011
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
  • Older Model is Sigma DP2s
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Ricoh GXR Mount A12 vs Sigma DP2x Overview

Here is a in depth review of the Ricoh GXR Mount A12 and Sigma DP2x, one being a Entry-Level Mirrorless and the other is a Large Sensor Compact by companies Ricoh and Sigma. There is a crucial difference between the image resolutions of the GXR Mount A12 (12MP) and DP2x (5MP) but they enjoy the exact same sensor dimensions (APS-C).

Photography Glossary

The GXR Mount A12 was launched 6 months later than the DP2x and they are both of a similar generation. Both the cameras come with different body type with the Ricoh GXR Mount A12 being a Rangefinder-style mirrorless camera and the Sigma DP2x being a Large Sensor Compact camera.

Before diving through a step-by-step comparison, below is a brief highlight of how the GXR Mount A12 grades against the DP2x in the way of portability, imaging, features and an overall rating.

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Reasons to pick Ricoh GXR Mount A12 over the Sigma DP2x

 GXR Mount A12 DP2x 
Display dimension3"2.5"Larger display (+0.5")
Display resolution920k230kClearer display (+690k dot)

Reasons to pick Sigma DP2x over the Ricoh GXR Mount A12

 DP2x GXR Mount A12 

Common features in the Ricoh GXR Mount A12 and Sigma DP2x

 GXR Mount A12 DP2x 
ReleasedAugust 2011February 2011Similar generation
Manually focus Dial precise focusing
Display typeFixed Fixed Fixed display
Selfie screen Absent selfie screen
Touch display Absent Touch display

Ricoh GXR Mount A12 vs Sigma DP2x Physical Comparison

In case you're intending to carry your camera often, you have to take into account its weight and dimensions. The Ricoh GXR Mount A12 has exterior dimensions of 120mm x 70mm x 45mm (4.7" x 2.8" x 1.8") and a weight of 370 grams (0.82 lbs) whilst the Sigma DP2x has dimensions of 113mm x 60mm x 56mm (4.4" x 2.4" x 2.2") accompanied by a weight of 280 grams (0.62 lbs).

Analyze the Ricoh GXR Mount A12 and Sigma DP2x in the latest Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember that, the weight of an Interchangeable Lens Camera will vary based on the lens you use at the time. Here is the front view measurements comparison of the GXR Mount A12 compared to the DP2x.

Ricoh GXR Mount A12 vs Sigma DP2x size comparison

Using size and weight, the portability grade of the GXR Mount A12 and DP2x is 84 and 86 respectively.

Ricoh GXR Mount A12 vs Sigma DP2x top view buttons comparison

Ricoh GXR Mount A12 vs Sigma DP2x Sensor Comparison

In many cases, it's tough to envision the difference between sensor sizing merely by reading technical specs. The visual below may provide you a greater sense of the sensor sizes in the GXR Mount A12 and DP2x.

As you have seen, the two cameras posses the exact same sensor measurements but not the same megapixels. You should expect to see the Ricoh GXR Mount A12 to offer you greater detail utilizing its extra 7 Megapixels. Greater resolution can also let you crop photos somewhat more aggressively.

Ricoh GXR Mount A12 vs Sigma DP2x sensor size comparison

Ricoh GXR Mount A12 vs Sigma DP2x Screen and ViewFinder

Ricoh GXR Mount A12 vs Sigma DP2x Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Ricoh GXR Mount A12 as a Portrait photography camera
Sigma DP2x as a Portrait photography camera
55
focusing manually
nice sensor size (APS-C)
saves RAW formats
no liveview feature
sensor resolution not great (12MP)
57
manual focus
sensor size is nice (APS-C)
saves RAW files
low MP (5MP)
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Street Comparison

Ricoh GXR Mount A12 Street photography advice
Sigma DP2x Street photography advice
65
nice sensor size (APS-C)
saves RAW formats
no moving screen
lack of image stabilization
68
sensor size is nice (APS-C)
saves RAW files
lighter than others in class (280g)
no moving screen
does not have image stabilization
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Sports Comparison

Ricoh GXR Mount A12 Sports photography features
Sigma DP2x Sports photography features
39
high shutter speed (1/9,000s)
nice sensor size (APS-C)
fixed focal length (()mm)
no liveview feature
painfully slow continuous shooting (3.0 frames/s)
lack of image stabilization
sensor resolution not great (12 megapixels)
has no phase detect AF
30
sensor size is nice (APS-C)
fixed focal length (41mm)
very slow continuous shooting (3.0 fps)
does not have image stabilization
low MP (5MP)
no phase detect AF
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Travel Comparison

Ricoh GXR Mount A12 Travel photography information
Sigma DP2x Travel photography information
60
built-in flash
great max aperture (f)
does not have Time Lapse mode
sensor resolution not great (12 megapixels)
screen is not selfie friendly
67
lighter than others in class (280g)
flash built-in
great maximum aperture (f)
low MP (5MP)
doesn't posses selfie friendly display
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Landscape Comparison

Ricoh GXR Mount A12 Landscape photography features
Sigma DP2x Landscape photography features
52
focusing manually
great max aperture (f)
nice screen size (3 inch)
nice sensor size (APS-C)
saves RAW formats
fixed lens (fixed lens mount)
fixed focal length (()mm)
no liveview feature
lack of image stabilization
sensor resolution not great (12MP)
does not have Time Lapse mode
48
manual focus
great maximum aperture (f)
sensor size is nice (APS-C)
saves RAW files
cannot switch lens (fixed lens mount)
fixed focal length (41mm)
screen is small (2.5")
does not have image stabilization
low MP (5MP)
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Vlogging Comparison

Ricoh GXR Mount A12 Vlogging factors
Sigma DP2x Vlogging factors
26
great max aperture (f)
screen is not selfie friendly
lack of image stabilization
video quality not great (1280 x 720 resolution)
does not have mic support
28
great maximum aperture (f)
lighter than others in class (280g)
doesn't posses selfie friendly display
does not have image stabilization
video quality not great (320 x 240 pxls)
missing external mic support
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Ricoh GXR Mount A12 vs Sigma DP2x Specifications

Detailed spec comparison table for Ricoh GXR Mount A12 and Sigma DP2x
 Ricoh GXR Mount A12Sigma DP2x
General Information
Brand Name Ricoh Sigma
Model Ricoh GXR Mount A12 Sigma DP2x
Class Entry-Level Mirrorless Large Sensor Compact
Revealed 2011-08-05 2011-02-08
Physical type Rangefinder-style mirrorless Large Sensor Compact
Sensor Information
Chip - True II
Sensor type CMOS CMOS (Foveon X3)
Sensor size APS-C APS-C
Sensor dimensions 23.6 x 15.7mm 20.7 x 13.8mm
Sensor area 370.5mm² 285.7mm²
Sensor resolution 12 megapixels 5 megapixels
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2 and 16:9
Highest resolution 4288 x 2848 2640 x 1760
Highest native ISO 3200 3200
Lowest native ISO 200 100
RAW format
Autofocusing
Manual focus
Autofocus touch
Autofocus continuous
Autofocus single
Tracking autofocus
Selective autofocus
Autofocus center weighted
Multi area autofocus
Autofocus live view
Face detect focus
Contract detect focus
Phase detect focus
Cross focus points - -
Lens
Lens mount fixed lens fixed lens
Lens focal range () 41mm (1x)
Crop factor 1.5 1.7
Screen
Type of display Fixed Type Fixed Type
Display sizing 3 inch 2.5 inch
Display resolution 920k dots 230k dots
Selfie friendly
Liveview
Touch friendly
Viewfinder Information
Viewfinder type Electronic (optional) None
Features
Slowest shutter speed 1 secs 15 secs
Maximum shutter speed 1/9000 secs 1/2000 secs
Continuous shooting rate 3.0 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 9.60 m 4.30 m
Flash modes Auto, On, Off, Red-Eye, Slow Sync, Manual Forced Flash, Red-Eye Reduction, Slow Synchro
Hot shoe
AEB
White balance bracketing
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions 1280 x 720 (24 fps), 640 x 480 (24 fps), 320 x 240 (24 fps) 320 x 240
Highest video resolution 1280x720 320x240
Video file format Motion JPEG Motion JPEG
Mic support
Headphone support
Connectivity
Wireless None None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 370 grams (0.82 lb) 280 grams (0.62 lb)
Dimensions 120 x 70 x 45mm (4.7" x 2.8" x 1.8") 113 x 60 x 56mm (4.4" x 2.4" x 2.2")
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
Battery life 330 pictures -
Form of battery Battery Pack -
Battery model DB-90 -
Self timer Yes (5 sec, custom) Yes (2 or 10 sec)
Time lapse feature
Storage type SD/SDHC, Internal SD/SDHC/MMC
Card slots 1 1
Cost at launch $349 $699