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Ricoh GXR GR Lens A12 28mm F2.5 vs Sigma SD9

Portability
88
Imaging
52
Features
37
Overall
46
Ricoh GXR GR Lens A12 28mm F2.5 front
 
Sigma SD9 front
Portability
54
Imaging
38
Features
27
Overall
33

Ricoh GXR GR Lens A12 28mm F2.5 vs Sigma SD9 Key Specs

Ricoh GXR GR Lens A12 28mm F2.5
(Full Review)
  • 12MP - APS-C Sensor
  • 3" Fixed Screen
  • ISO 200 - 3200
  • 1280 x 720 video
  • 28mm (F2.5) lens
  • 140g - 113 x 70 x 56mm
  • Introduced September 2010
Sigma SD9
(Full Review)
  • 3MP - APS-C Sensor
  • 1.8" Fixed Display
  • ISO 100 - 400
  • 1/6000s Max Shutter
  • No Video
  • Sigma SA Mount
  • 950g - 152 x 120 x 79mm
  • Launched November 2002
  • Replacement is Sigma SD10
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Ricoh GXR GR Lens A12 28mm F2.5 vs Sigma SD9 Overview

On this page, we are evaluating the Ricoh GXR GR Lens A12 28mm F2.5 and Sigma SD9, one being a Advanced Mirrorless and the other is a Advanced DSLR by brands Ricoh and Sigma. There is a huge difference between the resolutions of the GXR GR Lens A12 28mm F2.5 (12MP) and SD9 (3MP) but both cameras provide the same sensor sizing (APS-C).

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The GXR GR Lens A12 28mm F2.5 was unveiled 7 years later than the SD9 and that is quite a significant gap as far as tech is concerned. Each 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 SD9 being a Mid-size SLR camera.

Before delving right into a step-by-step comparison, here is a short synopsis of how the GXR GR Lens A12 28mm F2.5 matches up against the SD9 with respect to portability, imaging, features and an overall rating.

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Reasons to pick Ricoh GXR GR Lens A12 28mm F2.5 over the Sigma SD9

 GXR GR Lens A12 28mm F2.5 SD9 
LaunchedSeptember 2010November 2002Fresher by 96 months
Display dimensions3"1.8"Larger display (+1.2")
Display resolution920k130kClearer display (+790k dot)

Reasons to pick Sigma SD9 over the Ricoh GXR GR Lens A12 28mm F2.5

 SD9 GXR GR Lens A12 28mm F2.5 

Common features in the Ricoh GXR GR Lens A12 28mm F2.5 and Sigma SD9

 GXR GR Lens A12 28mm F2.5 SD9 
Focus manually More accurate focus
Display typeFixed Fixed Fixed display
Selfie screen Neither offers selfie screen
Touch display Neither offers Touch display

Ricoh GXR GR Lens A12 28mm F2.5 vs Sigma SD9 Physical Comparison

For anybody who is intending to carry your camera frequently, you'll have to factor its weight and volume. The Ricoh GXR GR Lens A12 28mm F2.5 offers exterior measurements of 113mm x 70mm x 56mm (4.4" x 2.8" x 2.2") along with a weight of 140 grams (0.31 lbs) whilst the Sigma SD9 has sizing of 152mm x 120mm x 79mm (6.0" x 4.7" x 3.1") and a weight of 950 grams (2.09 lbs).

See the Ricoh GXR GR Lens A12 28mm F2.5 and Sigma SD9 in the new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Always remember, the weight of an Interchangeable Lens Camera will differ based on the lens you are working with at that time. Following is a front view dimension comparison of the GXR GR Lens A12 28mm F2.5 against the SD9.

Ricoh GXR GR Lens A12 28mm F2.5 vs Sigma SD9 size comparison

Using size and weight, the portability grade of the GXR GR Lens A12 28mm F2.5 and SD9 is 88 and 54 respectively.

Ricoh GXR GR Lens A12 28mm F2.5 vs Sigma SD9 top view buttons comparison

Ricoh GXR GR Lens A12 28mm F2.5 vs Sigma SD9 Sensor Comparison

In many cases, it can be hard to visualise the difference between sensor sizing purely by going over technical specs. The visual here may offer you a more clear sense of the sensor measurements in the GXR GR Lens A12 28mm F2.5 and SD9.

As you can tell, both of these cameras have the same sensor dimensions but not the same megapixels. You should expect to see the Ricoh GXR GR Lens A12 28mm F2.5 to offer you greater detail having an extra 9MP. Greater resolution can also help you crop photos a bit more aggressively. The newer GXR GR Lens A12 28mm F2.5 is going to have a benefit when it comes to sensor technology.

Ricoh GXR GR Lens A12 28mm F2.5 vs Sigma SD9 sensor size comparison

Ricoh GXR GR Lens A12 28mm F2.5 vs Sigma SD9 Screen and ViewFinder

Ricoh GXR GR Lens A12 28mm F2.5 vs Sigma SD9 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Ricoh GXR GR Lens A12 28mm F2.5 Portrait photography factors
Sigma SD9 Portrait photography factors
57
you can focus manually
nice sensor size (APS-C)
comes with face detect focusing
supports RAW files
no liveview feature
MP count low (12 megapixels)
46
focusing manually
good sensor size (APS-C)
exports RAW files
no liveview
sensor resolution low (3 megapixels)
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Street Comparison

Ricoh GXR GR Lens A12 28mm F2.5 Street photography info
Sigma SD9 Street photography info
70
nice sensor size (APS-C)
supports RAW files
lighter than average (140g)
screen does not articulate
does not have image stabilization
43
good sensor size (APS-C)
exports RAW files
no moving screen
does not have image stabilization
heavier than others (950g)
low max ISO (400)
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Sports Comparison

Ricoh GXR GR Lens A12 28mm F2.5 Sports photography advice
Sigma SD9 Sports photography advice
32
nice sensor size (APS-C)
fixed focal length (28mm)
no liveview feature
max frames per second very slow (5.0 fps)
does not have image stabilization
MP count low (12 megapixels)
bad battery pack (320 CIPA)
no phase detect AF
35
high shutter speed (1/6,000 seconds)
good sensor size (APS-C)
no liveview
does not have image stabilization
sensor resolution low (3 megapixels)
lacks phase detect autofocus
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Travel Comparison

Ricoh GXR GR Lens A12 28mm F2.5 as a Travel photography camera
Sigma SD9 as a Travel photography camera
58
lighter than average (140 grams)
flash built-in
bad battery pack (320 per charge)
MP count low (12MP)
does not posses selfie friendly screen
slow max aperture (f2.5)
29
no Time Lapse recording
heavier than others (950g)
sensor resolution low (3MP)
doesn't posses selfie friendly screen
Photography Glossary

Landscape Comparison

Landscape photography with Ricoh GXR GR Lens A12 28mm F2.5
Landscape photography with Sigma SD9
47
you can focus manually
pretty good screen size (3 inch)
nice sensor size (APS-C)
supports RAW files
fixed lens (fixed lens mount)
fixed focal length (28mm)
slow max aperture (f2.5)
no liveview feature
does not have image stabilization
MP count low (12MP)
bad battery pack (320 shots)
40
focusing manually
swap lenses (Sigma SA mount)
good sensor size (APS-C)
exports RAW files
tiny screen (1.8 inches)
no liveview
does not have image stabilization
sensor resolution low (3 megapixels)
low max ISO (400)
no Time Lapse recording
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Vlogging Comparison

Ricoh GXR GR Lens A12 28mm F2.5 as a Vlogging camera
Sigma SD9 as a Vlogging camera
28
comes with face detect focusing
lighter than average (140 grams)
slow max aperture (f2.5)
does not posses selfie friendly screen
does not have image stabilization
low video resolution (1280 x 720 resolution)
lack of microphone support
9
no video shooting
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Ricoh GXR GR Lens A12 28mm F2.5 vs Sigma SD9 Specifications

Detailed spec comparison table for Ricoh GXR GR Lens A12 28mm F2.5 and Sigma SD9
 Ricoh GXR GR Lens A12 28mm F2.5Sigma SD9
General Information
Manufacturer Ricoh Sigma
Model Ricoh GXR GR Lens A12 28mm F2.5 Sigma SD9
Class Advanced Mirrorless Advanced DSLR
Introduced 2010-09-21 2002-11-26
Physical type Rangefinder-style mirrorless Mid-size SLR
Sensor Information
Powered by GR Engine III -
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 surface area 370.5mm² 285.7mm²
Sensor resolution 12 megapixels 3 megapixels
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Maximum resolution 4288 x 2848 2268 x 1512
Maximum native ISO 3200 400
Min native ISO 200 100
RAW photos
Autofocusing
Focus manually
Touch focus
Autofocus continuous
Single autofocus
Tracking autofocus
Autofocus selectice
Autofocus center weighted
Multi area autofocus
Live view autofocus
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Lens
Lens mounting type fixed lens Sigma SA
Lens focal range 28mm (1x) -
Maximum aperture f/2.5 -
Number of lenses - 76
Crop factor 1.5 1.7
Screen
Type of screen Fixed Type Fixed Type
Screen diagonal 3 inches 1.8 inches
Screen resolution 920k dots 130k dots
Selfie friendly
Liveview
Touch functionality
Screen technology TFT color LCD -
Viewfinder Information
Viewfinder Electronic (optional) Optical (pentaprism)
Viewfinder coverage - 98 percent
Viewfinder magnification - 0.77x
Features
Lowest shutter speed 180 secs 30 secs
Highest shutter speed 1/3200 secs 1/6000 secs
Continuous shooting rate 5.0 frames/s -
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Custom white balance
Image stabilization
Built-in flash
Flash range - no built-in flash
Flash options Auto, On, Off, Red-Eye, Slow Sync, Manual -
Hot shoe
Auto exposure bracketing
WB bracketing
Highest flash synchronize - 1/180 secs
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 1280 x 720 (24 fps), 640 x 480 (24 fps), 320 x 240 (24 fps) -
Maximum video resolution 1280x720 None
Video file format MPEG-4 -
Mic support
Headphone support
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 proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 140 gr (0.31 pounds) 950 gr (2.09 pounds)
Physical dimensions 113 x 70 x 56mm (4.4" x 2.8" x 2.2") 152 x 120 x 79mm (6.0" x 4.7" x 3.1")
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 photographs -
Battery style Battery Pack -
Battery model DB-90 -
Self timer Yes (2 or 10 sec, 10 sec (3 images) ) Yes (10 sec)
Time lapse shooting
Type of storage SD/SDHC, Internal Compact Flash Type I or II
Card slots One One
Cost at launch $566 $3,001