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Ricoh GXR Mount A12 vs Sigma DP1x

Portability
84
Imaging
53
Features
39
Overall
47
Ricoh GXR Mount A12 front
 
Sigma DP1x front
Portability
88
Imaging
44
Features
27
Overall
37

Ricoh GXR Mount A12 vs Sigma DP1x Key Specs

Ricoh GXR Mount A12
(Full Review)
  • 12MP - APS-C Sensor
  • 3" Fixed Screen
  • ISO 200 - 3200
  • 1/9000s Maximum Shutter
  • 1280 x 720 video
  • ()mm (F) lens
  • 370g - 120 x 70 x 45mm
  • Announced August 2011
Sigma DP1x
(Full Review)
  • 5MP - APS-C Sensor
  • 2.5" Fixed Display
  • ISO 100 - 3200
  • 320 x 240 video
  • 28mm (F4.0) lens
  • 250g - 113 x 60 x 50mm
  • Released February 2010
  • Older Model is Sigma DP1s
Photography Glossary

Ricoh GXR Mount A12 vs Sigma DP1x Overview

Here is a extensive comparison of the Ricoh GXR Mount A12 and Sigma DP1x, former being a Entry-Level Mirrorless while the other is a Large Sensor Compact by rivals Ricoh and Sigma. There is a substantial difference among the image resolutions of the GXR Mount A12 (12MP) and DP1x (5MP) but both cameras provide the identical sensor sizing (APS-C).

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The GXR Mount A12 was announced 18 months later than the DP1x making them a generation apart from each other. Both of these cameras feature different body design with the Ricoh GXR Mount A12 being a Rangefinder-style mirrorless camera and the Sigma DP1x being a Large Sensor Compact camera.

Before we go straight to a full comparison, here is a concise overview of how the GXR Mount A12 scores vs the DP1x with respect to portability, imaging, features and an overall rating.

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Reasons to pick Ricoh GXR Mount A12 over the Sigma DP1x

 GXR Mount A12 DP1x 
ReleasedAugust 2011February 2010Fresher by 18 months
Display size3"2.5"Larger display (+0.5")
Display resolution920k230kSharper display (+690k dot)

Reasons to pick Sigma DP1x over the Ricoh GXR Mount A12

 DP1x GXR Mount A12 

Common features in the Ricoh GXR Mount A12 and Sigma DP1x

 GXR Mount A12 DP1x 
Manually focus Dial precise focus
Display typeFixed Fixed Fixed display
Selfie screen Lacking selfie screen
Touch friendly display Lacking Touch friendly display

Ricoh GXR Mount A12 vs Sigma DP1x Physical Comparison

For anybody who is looking to carry your camera often, you'll have to take into account its weight and volume. The Ricoh GXR Mount A12 offers outer dimensions of 120mm x 70mm x 45mm (4.7" x 2.8" x 1.8") along with a weight of 370 grams (0.82 lbs) and the Sigma DP1x has sizing of 113mm x 60mm x 50mm (4.4" x 2.4" x 2.0") having a weight of 250 grams (0.55 lbs).

Take a look at the Ricoh GXR Mount A12 and Sigma DP1x in our completely new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an ILC will vary dependant on the lens you are working with at that time. The following is a front view measurement comparison of the GXR Mount A12 versus the DP1x.

Ricoh GXR Mount A12 vs Sigma DP1x size comparison

Factoring in size and weight, the portability score of the GXR Mount A12 and DP1x is 84 and 88 respectively.

Ricoh GXR Mount A12 vs Sigma DP1x top view buttons comparison

Ricoh GXR Mount A12 vs Sigma DP1x Sensor Comparison

Generally, it can be difficult to imagine the gap in sensor sizing simply by looking through specs. The graphic here will offer you a stronger sense of the sensor dimensions in the GXR Mount A12 and DP1x.

As you can plainly see, both of the cameras feature the identical sensor size but different megapixels. You can expect to see the Ricoh GXR Mount A12 to provide you with extra detail with its extra 7 Megapixels. Greater resolution will also allow you to crop images way more aggressively. The younger GXR Mount A12 should have a benefit in sensor tech.

Ricoh GXR Mount A12 vs Sigma DP1x sensor size comparison

Ricoh GXR Mount A12 vs Sigma DP1x Screen and ViewFinder

Ricoh GXR Mount A12 vs Sigma DP1x Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Ricoh GXR Mount A12 Portrait photography advice
Sigma DP1x Portrait photography advice
55
you can focus manually
nice sensor size (APS-C)
supports RAW files
doesn't have liveview
low megapixels (12 megapixels)
56
you can focus manually
nice sensor size (APS-C)
exports RAW formats
sensor resolution not great (5MP)
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Street Comparison

Street photography with Ricoh GXR Mount A12
Street photography with Sigma DP1x
65
nice sensor size (APS-C)
supports RAW files
no moving screen
no image stabilization
68
nice sensor size (APS-C)
exports RAW formats
lighter than average (250 grams)
screen does not articulate
lack of image stabilization
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Sports Comparison

Sports photography with Ricoh GXR Mount A12
Sports photography with Sigma DP1x
39
great max shutter speed (1/9,000s)
nice sensor size (APS-C)
can't change focal length (()mm)
doesn't have liveview
painfully slow continuous shooting (3.0 fps)
no image stabilization
low megapixels (12MP)
has no phase detect AF
32
nice sensor size (APS-C)
focal length is fixed (28mm)
lack of image stabilization
sensor resolution not great (5 megapixels)
lack of phase detect AF
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Travel Comparison

Ricoh GXR Mount A12 Travel photography features
Sigma DP1x Travel photography features
60
has built in flash
fast max aperture (f)
lack of Time Lapse mode
low megapixels (12MP)
display isn't selfie friendly
57
lighter than average (250 grams)
has built in flash
lack of Timelapse recording
sensor resolution not great (5 megapixels)
doesn't posses selfie friendly screen
slow maximum aperture (f4.0)
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Landscape Comparison

Ricoh GXR Mount A12 Landscape photography details
Sigma DP1x Landscape photography details
52
you can focus manually
fast max aperture (f)
screen size is good (3 inch)
nice sensor size (APS-C)
supports RAW files
fixed lens (fixed lens mount)
can't change focal length (()mm)
doesn't have liveview
no image stabilization
low megapixels (12 megapixels)
lack of Time Lapse mode
41
you can focus manually
nice sensor size (APS-C)
exports RAW formats
can't change lenses (fixed lens mount)
focal length is fixed (28mm)
slow maximum aperture (f4.0)
tiny screen (2.5 inches)
lack of image stabilization
sensor resolution not great (5MP)
lack of Timelapse recording
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Vlogging Comparison

Ricoh GXR Mount A12 Vlogging features
Sigma DP1x Vlogging features
26
fast max aperture (f)
display isn't selfie friendly
no image stabilization
video res low (1280 x 720 pxls)
lack of external mic socket
25
lighter than average (250 grams)
slow maximum aperture (f4.0)
doesn't posses selfie friendly screen
lack of image stabilization
video res low (320 x 240 resolution)
lack of external microphone socket
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Ricoh GXR Mount A12 vs Sigma DP1x Specifications

Detailed spec comparison table for Ricoh GXR Mount A12 and Sigma DP1x
 Ricoh GXR Mount A12Sigma DP1x
General Information
Brand Name Ricoh Sigma
Model type Ricoh GXR Mount A12 Sigma DP1x
Class Entry-Level Mirrorless Large Sensor Compact
Announced 2011-08-05 2010-02-20
Physical type Rangefinder-style mirrorless Large Sensor Compact
Sensor Information
Powered by - True II
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 surface area 370.5mm² 285.7mm²
Sensor resolution 12MP 5MP
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Full resolution 4288 x 2848 2640 x 1760
Max native ISO 3200 3200
Min native ISO 200 100
RAW pictures
Autofocusing
Manual focusing
Touch focus
Continuous AF
AF single
Tracking AF
AF selectice
AF center weighted
AF multi area
Live view AF
Face detection focusing
Contract detection focusing
Phase detection focusing
Lens
Lens support fixed lens fixed lens
Lens zoom range () 28mm (1x)
Max aperture - f/4.0
Crop factor 1.5 1.7
Screen
Screen type Fixed Type Fixed Type
Screen sizing 3 inch 2.5 inch
Resolution of screen 920 thousand dots 230 thousand dots
Selfie friendly
Liveview
Touch functionality
Viewfinder Information
Viewfinder Electronic (optional) None
Features
Lowest shutter speed 1 seconds 30 seconds
Highest shutter speed 1/9000 seconds 1/4000 seconds
Continuous shooting rate 3.0fps -
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes Yes
Custom WB
Image stabilization
Built-in flash
Flash distance 9.60 m -
Flash options Auto, On, Off, Red-Eye, Slow Sync, Manual -
External flash
AE bracketing
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
Max video resolution 1280x720 320x240
Video data format Motion JPEG -
Microphone port
Headphone port
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 sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 370 gr (0.82 pounds) 250 gr (0.55 pounds)
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 All around 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 shots -
Battery type Battery Pack -
Battery ID DB-90 -
Self timer Yes (5 sec, custom) Yes (10 sec)
Time lapse shooting
Storage type SD/SDHC, Internal SD/MMC card
Card slots One One
Pricing at launch $349 $574