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Ricoh GXR Mount A12 vs Sigma DP1

Portability
84
Imaging
53
Features
39
Overall
47
Ricoh GXR Mount A12 front
 
Sigma DP1 front
Portability
87
Imaging
43
Features
30
Overall
37

Ricoh GXR Mount A12 vs Sigma DP1 Key Specs

Ricoh GXR Mount A12
(Full Review)
  • 12MP - APS-C Sensor
  • 3" Fixed Screen
  • ISO 200 - 3200
  • 1/9000s Max Shutter
  • 1280 x 720 video
  • ()mm (F) lens
  • 370g - 120 x 70 x 45mm
  • Introduced August 2011
Sigma DP1
(Full Review)
  • 5MP - APS-C Sensor
  • 2.5" Fixed Display
  • ISO 100 - 800
  • No Video
  • 28mm (F) lens
  • 270g - 113 x 60 x 50mm
  • Introduced May 2008
  • Updated by Sigma DP1s
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Ricoh GXR Mount A12 vs Sigma DP1 Overview

On this page, we are comparing the Ricoh GXR Mount A12 vs Sigma DP1, former being a Entry-Level Mirrorless while the other is a Large Sensor Compact by brands Ricoh and Sigma. There exists a sizable gap between the sensor resolutions of the GXR Mount A12 (12MP) and DP1 (5MP) but both cameras have the same sensor measurements (APS-C).

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The GXR Mount A12 was brought out 3 years later than the DP1 and that is quite a significant difference as far as technology is concerned. Both of these cameras have different body design with the Ricoh GXR Mount A12 being a Rangefinder-style mirrorless camera and the Sigma DP1 being a Large Sensor Compact camera.

Before getting into a more detailed comparison, here is a brief view of how the GXR Mount A12 matches up vs the DP1 in regards to portability, imaging, features and an overall grade.

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Reasons to pick Ricoh GXR Mount A12 over the Sigma DP1

 GXR Mount A12 DP1 
IntroducedAugust 2011May 2008More recent by 40 months
Display dimensions3"2.5"Larger display (+0.5")
Display resolution920k230kSharper display (+690k dot)

Reasons to pick Sigma DP1 over the Ricoh GXR Mount A12

 DP1 GXR Mount A12 

Common features in the Ricoh GXR Mount A12 and Sigma DP1

 GXR Mount A12 DP1 
Manual focus Dial precise focusing
Display typeFixed Fixed Fixed display
Selfie screen Neither offers selfie screen
Touch friendly display Missing Touch friendly display

Ricoh GXR Mount A12 vs Sigma DP1 Physical Comparison

For those who are aiming to lug around your camera frequently, you will want to factor its weight and measurements. The Ricoh GXR Mount A12 offers external measurements of 120mm x 70mm x 45mm (4.7" x 2.8" x 1.8") and a weight of 370 grams (0.82 lbs) and the Sigma DP1 has proportions of 113mm x 60mm x 50mm (4.4" x 2.4" x 2.0") along with a weight of 270 grams (0.60 lbs).

Check out the Ricoh GXR Mount A12 vs Sigma DP1 in our newest Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into consideration, the weight of an ILC will vary depending on the lens you choose during that time. Following is a front view dimension comparison of the GXR Mount A12 and the DP1.

Ricoh GXR Mount A12 vs Sigma DP1 size comparison

Taking into account dimensions and weight, the portability grade of the GXR Mount A12 and DP1 is 84 and 87 respectively.

Ricoh GXR Mount A12 vs Sigma DP1 top view buttons comparison

Ricoh GXR Mount A12 vs Sigma DP1 Sensor Comparison

More often than not, it can be tough to visualize the gap between sensor measurements merely by reading through specs. The graphic underneath might provide you a far better sense of the sensor measurements in the GXR Mount A12 and DP1.

All in all, the 2 cameras have the same sensor dimensions but different MP. You can anticipate the Ricoh GXR Mount A12 to give more detail having its extra 7 Megapixels. Greater resolution can also make it easier to crop pics a bit more aggressively. The younger GXR Mount A12 should have an edge in sensor technology.

Ricoh GXR Mount A12 vs Sigma DP1 sensor size comparison

Ricoh GXR Mount A12 vs Sigma DP1 Screen and ViewFinder

Ricoh GXR Mount A12 vs Sigma DP1 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Ricoh GXR Mount A12 as a Portrait photography camera
Sigma DP1 as a Portrait photography camera
55
you can focus manually
good sensor size (APS-C)
saves RAW formats
no liveview
sensor resolution low (12MP)
55
focusing manually
nice sensor size (APS-C)
delivers RAW formats
sensor resolution not great (5 megapixels)
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Street Comparison

Ricoh GXR Mount A12 as a Street photography camera
Sigma DP1 as a Street photography camera
65
good sensor size (APS-C)
saves RAW formats
screen does not articulate
no image stabilization
64
nice sensor size (APS-C)
delivers RAW formats
lighter than competition in class (270g)
screen is fixed
lack of image stabilization
low max ISO (800)
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Sports Comparison

Ricoh GXR Mount A12 Sports photography advice
Sigma DP1 Sports photography advice
39
great max shutter speed (1/9,000 seconds)
good sensor size (APS-C)
can't change focal length (()mm)
no liveview
very slow continuous shooting (3.0 frames per second)
no image stabilization
sensor resolution low (12MP)
no phase detect autofocus
31
nice sensor size (APS-C)
can't change focal length (28mm)
lack of image stabilization
sensor resolution not great (5 megapixels)
lack of phase detect auto focus
Photography Glossary

Travel Comparison

Ricoh GXR Mount A12 Travel photography details
Sigma DP1 Travel photography details
60
built-in flash
very good max aperture (f)
no Timelapse recording
sensor resolution low (12 megapixels)
doesn't contain selfie friendly display
63
lighter than competition in class (270g)
flash built-in
very good max aperture (f)
lack of Timelapse recording
sensor resolution not great (5MP)
does not feature selfie friendly screen
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Landscape Comparison

Landscape photography with Ricoh GXR Mount A12
Landscape photography with Sigma DP1
52
you can focus manually
very good max aperture (f)
screen is a good size (3 inches)
good sensor size (APS-C)
saves RAW formats
can't change lens (fixed lens mount)
can't change focal length (()mm)
no liveview
no image stabilization
sensor resolution low (12MP)
no Timelapse recording
44
focusing manually
very good max aperture (f)
nice sensor size (APS-C)
delivers RAW formats
lens is fixed (fixed lens mount)
can't change focal length (28mm)
screen is somewhat small (2.5 inches)
lack of image stabilization
sensor resolution not great (5MP)
low max ISO (800)
lack of Timelapse recording
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Vlogging Comparison

Vlogging with Ricoh GXR Mount A12
Vlogging with Sigma DP1
26
very good max aperture (f)
doesn't contain selfie friendly display
no image stabilization
video resolution low (1280 x 720 resolution)
no external microphone port
9
lack of video recording
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Ricoh GXR Mount A12 vs Sigma DP1 Specifications

Detailed spec comparison table for Ricoh GXR Mount A12 and Sigma DP1
 Ricoh GXR Mount A12Sigma DP1
General Information
Brand Ricoh Sigma
Model type Ricoh GXR Mount A12 Sigma DP1
Type Entry-Level Mirrorless Large Sensor Compact
Introduced 2011-08-05 2008-05-19
Body design Rangefinder-style mirrorless Large Sensor Compact
Sensor Information
Sensor type CMOS CMOS (Foveon X3)
Sensor size APS-C APS-C
Sensor measurements 23.6 x 15.7mm 20.7 x 13.8mm
Sensor area 370.5mm² 285.7mm²
Sensor resolution 12 megapixels 5 megapixels
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Max resolution 4288 x 2848 2640 x 1760
Max native ISO 3200 800
Min native ISO 200 100
RAW files
Autofocusing
Focus manually
AF touch
Continuous AF
AF single
Tracking AF
Selective AF
AF center weighted
AF multi area
AF live view
Face detection AF
Contract detection AF
Phase detection AF
Lens
Lens support fixed lens fixed lens
Lens zoom range () 28mm (1x)
Crop factor 1.5 1.7
Screen
Screen type Fixed Type Fixed Type
Screen diagonal 3 inches 2.5 inches
Resolution of screen 920k dot 230k dot
Selfie friendly
Liveview
Touch function
Viewfinder Information
Viewfinder type Electronic (optional) None
Features
Minimum shutter speed 1 secs 30 secs
Fastest shutter speed 1/9000 secs 1/4000 secs
Continuous shutter speed 3.0 frames/s -
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Custom WB
Image stabilization
Integrated flash
Flash distance 9.60 m -
Flash options Auto, On, Off, Red-Eye, Slow Sync, Manual -
Hot shoe
AE bracketing
White balance bracketing
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 1280 x 720 (24 fps), 640 x 480 (24 fps), 320 x 240 (24 fps) -
Max video resolution 1280x720 None
Video format Motion JPEG -
Microphone jack
Headphone jack
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
Environment seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 370g (0.82 lbs) 270g (0.60 lbs)
Physical dimensions 120 x 70 x 45mm (4.7" x 2.8" x 1.8") 113 x 60 x 50mm (4.4" x 2.4" x 2.0")
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
Battery life 330 pictures -
Battery form Battery Pack -
Battery ID DB-90 -
Self timer Yes (5 sec, custom) Yes (10 sec)
Time lapse recording
Type of storage SD/SDHC, Internal SD/MMC card
Storage slots 1 1
Pricing at release $349 $566