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Ricoh GXR GR Lens A12 28mm F2.5 vs Sigma DP3 Merrill

Portability
88
Imaging
52
Features
37
Overall
46
Ricoh GXR GR Lens A12 28mm F2.5 front
 
Sigma DP3 Merrill front
Portability
83
Imaging
56
Features
33
Overall
46

Ricoh GXR GR Lens A12 28mm F2.5 vs Sigma DP3 Merrill Key Specs

Ricoh GXR GR Lens A12 28mm F2.5
(Full Review)
  • 12MP - APS-C Sensor
  • 3" Fixed Display
  • ISO 200 - 3200
  • 1280 x 720 video
  • 28mm (F2.5) lens
  • 140g - 113 x 70 x 56mm
  • Released September 2010
Sigma DP3 Merrill
(Full Review)
  • 15MP - APS-C Sensor
  • 3" Fixed Screen
  • ISO 100 - 6400
  • 640 x 480 video
  • 75mm (F2.8) lens
  • 330g - 122 x 67 x 59mm
  • Introduced January 2013
  • Previous Model is Sigma DP2 Merrill
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Ricoh GXR GR Lens A12 28mm F2.5 vs Sigma DP3 Merrill Overview

Lets look more in depth at the Ricoh GXR GR Lens A12 28mm F2.5 vs Sigma DP3 Merrill, one is a Advanced Mirrorless and the latter is a Large Sensor Compact by rivals Ricoh and Sigma. The image resolution of the GXR GR Lens A12 28mm F2.5 (12MP) and the DP3 Merrill (15MP) is pretty close and both cameras posses the same sensor size (APS-C).

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The GXR GR Lens A12 28mm F2.5 was unveiled 3 years earlier than the DP3 Merrill which is a fairly large gap as far as camera tech is concerned. Both of these cameras have different body design with the Ricoh GXR GR Lens A12 28mm F2.5 being a Rangefinder-style mirrorless camera and the Sigma DP3 Merrill being a Large Sensor Compact camera.

Before delving right into a thorough comparison, here is a short summation of how the GXR GR Lens A12 28mm F2.5 scores vs the DP3 Merrill when considering portability, imaging, features and an overall mark.

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Reasons to pick Ricoh GXR GR Lens A12 28mm F2.5 over the Sigma DP3 Merrill

 GXR GR Lens A12 28mm F2.5 DP3 Merrill 

Reasons to pick Sigma DP3 Merrill over the Ricoh GXR GR Lens A12 28mm F2.5

 DP3 Merrill GXR GR Lens A12 28mm F2.5 
IntroducedJanuary 2013September 2010Newer by 28 months

Common features in the Ricoh GXR GR Lens A12 28mm F2.5 and Sigma DP3 Merrill

 GXR GR Lens A12 28mm F2.5 DP3 Merrill 
Manually focus Very exact focus
Screen typeFixed Fixed Fixed screen
Screen dimensions3"3"Equal screen size
Screen resolution920k920kSame screen resolution
Selfie screen Lacking selfie screen
Touch screen Lacking Touch screen

Ricoh GXR GR Lens A12 28mm F2.5 vs Sigma DP3 Merrill Physical Comparison

When you are aiming to travel with your camera regularly, you should think about its weight and dimensions. The Ricoh GXR GR Lens A12 28mm F2.5 has outside dimensions of 113mm x 70mm x 56mm (4.4" x 2.8" x 2.2") with a weight of 140 grams (0.31 lbs) whilst the Sigma DP3 Merrill has dimensions of 122mm x 67mm x 59mm (4.8" x 2.6" x 2.3") with a weight of 330 grams (0.73 lbs).

Examine the Ricoh GXR GR Lens A12 28mm F2.5 vs Sigma DP3 Merrill in the new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into account, the weight of an Interchangeable Lens Camera will differ based on the lens you choose at that moment. Here is a front view dimension comparison of the GXR GR Lens A12 28mm F2.5 compared to the DP3 Merrill.

Ricoh GXR GR Lens A12 28mm F2.5 vs Sigma DP3 Merrill size comparison

Using size and weight, the portability grade of the GXR GR Lens A12 28mm F2.5 and DP3 Merrill is 88 and 83 respectively.

Ricoh GXR GR Lens A12 28mm F2.5 vs Sigma DP3 Merrill top view buttons comparison

Ricoh GXR GR Lens A12 28mm F2.5 vs Sigma DP3 Merrill Sensor Comparison

In many cases, its tough to picture the gap in sensor dimensions only by viewing specifications. The image here should give you a more clear sense of the sensor dimensions in the GXR GR Lens A12 28mm F2.5 and DP3 Merrill.

Plainly, both of these cameras have the same sensor dimensions albeit different resolution. You should expect the Sigma DP3 Merrill to provide you with extra detail having an extra 3 Megapixels. Higher resolution can also make it easier to crop pictures a bit more aggressively. The more aged GXR GR Lens A12 28mm F2.5 will be disadvantaged in sensor tech.

Ricoh GXR GR Lens A12 28mm F2.5 vs Sigma DP3 Merrill sensor size comparison

Ricoh GXR GR Lens A12 28mm F2.5 vs Sigma DP3 Merrill Screen and ViewFinder

Ricoh GXR GR Lens A12 28mm F2.5 vs Sigma DP3 Merrill Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Ricoh GXR GR Lens A12 28mm F2.5
Portrait photography with Sigma DP3 Merrill
57
you can focus manually
nice sensor size (APS-C)
includes face detect autofocus
exports RAW files
does not have liveview
sensor resolution not great (12MP)
73
you can focus manually
good resolution (15 megapixels)
good sensor size (APS-C)
exports RAW files
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Street Comparison

Ricoh GXR GR Lens A12 28mm F2.5 Street photography details
Sigma DP3 Merrill Street photography details
70
nice sensor size (APS-C)
exports RAW files
lighter than competitors (140g)
fixed screen
lack of image stabilization
65
good sensor size (APS-C)
exports RAW files
no articulating screen
lack of image stabilization
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Sports Comparison

Ricoh GXR GR Lens A12 28mm F2.5 Sports photography information
Sigma DP3 Merrill Sports photography information
32
nice sensor size (APS-C)
can't change focal length (28mm)
does not have liveview
continuous shooting slow (5.0 frames per second)
lack of image stabilization
sensor resolution not great (12 megapixels)
low battery power (320 shots)
lack of phase detect autofocus
44
good resolution (15MP)
good sensor size (APS-C)
fixed focal length (75mm)
max frames per second low (4.0 fps)
lack of image stabilization
lacks phase detect autofocus
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Travel Comparison

Travel photography with Ricoh GXR GR Lens A12 28mm F2.5
Travel photography with Sigma DP3 Merrill
58
lighter than competitors (140g)
built-in flash
low battery power (320 per charge)
sensor resolution not great (12 megapixels)
screen isn't selfie friendly
sluggish maximum aperture (f2.5)
54
good resolution (15 megapixels)
lack of Timelapse function
doesn't have selfie friendly display
somewhat slow max aperture (f2.8)
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Landscape Comparison

Ricoh GXR GR Lens A12 28mm F2.5 as a Landscape photography camera
Sigma DP3 Merrill as a Landscape photography camera
47
you can focus manually
screen size is decent (3 inches)
nice sensor size (APS-C)
exports RAW files
fixed lens (fixed lens mount)
can't change focal length (28mm)
sluggish maximum aperture (f2.5)
does not have liveview
lack of image stabilization
sensor resolution not great (12 megapixels)
low battery power (320 per charge)
55
you can focus manually
screen size is good (3")
good resolution (15 megapixels)
good sensor size (APS-C)
exports RAW files
cannot swap lens (fixed lens mount)
fixed focal length (75mm)
somewhat slow max aperture (f2.8)
lack of image stabilization
lack of Timelapse function
Photography Glossary

Vlogging Comparison

Vlogging with Ricoh GXR GR Lens A12 28mm F2.5
Vlogging with Sigma DP3 Merrill
28
includes face detect autofocus
lighter than competitors (140g)
sluggish maximum aperture (f2.5)
screen isn't selfie friendly
lack of image stabilization
low video resolution (1280 x 720 resolution)
doesn't have microphone port
22
somewhat slow max aperture (f2.8)
doesn't have selfie friendly display
lack of image stabilization
low res video (640 x 480 pxls)
lack of external microphone jack
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Ricoh GXR GR Lens A12 28mm F2.5 vs Sigma DP3 Merrill Specifications

Detailed spec comparison table for Ricoh GXR GR Lens A12 28mm F2.5 and Sigma DP3 Merrill
 Ricoh GXR GR Lens A12 28mm F2.5Sigma DP3 Merrill
General Information
Make Ricoh Sigma
Model Ricoh GXR GR Lens A12 28mm F2.5 Sigma DP3 Merrill
Category Advanced Mirrorless Large Sensor Compact
Released 2010-09-21 2013-01-08
Body design Rangefinder-style mirrorless Large Sensor Compact
Sensor Information
Powered by GR Engine III Dual TRUE II engine
Sensor type CMOS CMOS (Foveon X3)
Sensor size APS-C APS-C
Sensor measurements 23.6 x 15.7mm 24 x 16mm
Sensor surface area 370.5mm² 384.0mm²
Sensor resolution 12 megapixel 15 megapixel
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 -
Maximum resolution 4288 x 2848 4704 x 3136
Maximum native ISO 3200 6400
Minimum native ISO 200 100
RAW format
Autofocusing
Focus manually
Touch to focus
Continuous autofocus
Single autofocus
Tracking autofocus
Autofocus selectice
Autofocus center weighted
Autofocus multi area
Live view autofocus
Face detect autofocus
Contract detect autofocus
Phase detect autofocus
Cross focus points - -
Lens
Lens mount fixed lens fixed lens
Lens focal range 28mm (1x) 75mm (1x)
Largest aperture f/2.5 f/2.8
Crop factor 1.5 1.5
Screen
Range of display Fixed Type Fixed Type
Display diagonal 3" 3"
Display resolution 920k dot 920k dot
Selfie friendly
Liveview
Touch function
Display tech TFT color LCD -
Viewfinder Information
Viewfinder type Electronic (optional) None
Features
Lowest shutter speed 180s -
Highest shutter speed 1/3200s -
Continuous shooting speed 5.0 frames/s 4.0 frames/s
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Change white balance
Image stabilization
Integrated flash
Flash range - no built-in flash
Flash modes Auto, On, Off, Red-Eye, Slow Sync, Manual no built-in flash
External flash
Auto exposure bracketing
WB 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) 640 x 480
Maximum video resolution 1280x720 640x480
Video file format MPEG-4 Motion JPEG
Microphone input
Headphone input
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 seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 140 gr (0.31 lbs) 330 gr (0.73 lbs)
Physical dimensions 113 x 70 x 56mm (4.4" x 2.8" x 2.2") 122 x 67 x 59mm (4.8" x 2.6" x 2.3")
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 320 images -
Battery format Battery Pack -
Battery model DB-90 -
Self timer Yes (2 or 10 sec, 10 sec (3 images) ) -
Time lapse recording
Type of storage SD/SDHC, Internal -
Storage slots 1 1
Cost at launch $566 $1,353