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Ricoh GXR A12 50mm F2.5 Macro vs Sigma SD15

Portability
77
Imaging
52
Features
31
Overall
43
Ricoh GXR A12 50mm F2.5 Macro front
 
Sigma SD15 front
Portability
59
Imaging
44
Features
45
Overall
44

Ricoh GXR A12 50mm F2.5 Macro vs Sigma SD15 Key Specs

Ricoh GXR A12 50mm F2.5 Macro
(Full Review)
  • 12MP - APS-C Sensor
  • 3" Fixed Display
  • ISO 200 - 3200
  • 1280 x 720 video
  • 50mm (F2.5) lens
  • 453g - 114 x 70 x 77mm
  • Released November 2009
Sigma SD15
(Full Review)
  • 5MP - APS-C Sensor
  • 3" Fixed Screen
  • ISO 100 - 1600 (Raise to 3200)
  • No Video
  • Sigma SA Mount
  • 750g - 144 x 107 x 81mm
  • Announced February 2010
  • Old Model is Sigma SD14
Photography Glossary

Ricoh GXR A12 50mm F2.5 Macro vs Sigma SD15 Overview

In this write-up, we will be analyzing the Ricoh GXR A12 50mm F2.5 Macro versus Sigma SD15, one is a Advanced Mirrorless and the latter is a Advanced DSLR by manufacturers Ricoh and Sigma. There exists a huge gap between the resolutions of the GXR A12 50mm F2.5 Macro (12MP) and SD15 (5MP) but they come with the same exact sensor measurements (APS-C).

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The GXR A12 50mm F2.5 Macro was unveiled 3 months before the SD15 and they are of a similar generation. Both of the cameras offer different body type with the Ricoh GXR A12 50mm F2.5 Macro being a Rangefinder-style mirrorless camera and the Sigma SD15 being a Mid-size SLR camera.

Before we go straight into a detailed comparison, below is a simple summation of how the GXR A12 50mm F2.5 Macro scores vs the SD15 in terms of portability, imaging, features and an overall score.

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Reasons to pick Ricoh GXR A12 50mm F2.5 Macro over the Sigma SD15

 GXR A12 50mm F2.5 Macro SD15 
Screen resolution920k460kCrisper screen (+460k dot)

Reasons to pick Sigma SD15 over the Ricoh GXR A12 50mm F2.5 Macro

 SD15 GXR A12 50mm F2.5 Macro 

Common features in the Ricoh GXR A12 50mm F2.5 Macro and Sigma SD15

 GXR A12 50mm F2.5 Macro SD15 
AnnouncedNovember 2009February 2010Similar generation
Manually focus More exact focus
Screen typeFixed Fixed Fixed screen
Screen sizing3"3"Equivalent screen measurements
Selfie screen Missing selfie screen
Touch screen Neither includes Touch screen

Ricoh GXR A12 50mm F2.5 Macro vs Sigma SD15 Physical Comparison

For anybody who is looking to carry around your camera frequently, you'll need to factor its weight and volume. The Ricoh GXR A12 50mm F2.5 Macro features outer measurements of 114mm x 70mm x 77mm (4.5" x 2.8" x 3.0") and a weight of 453 grams (1.00 lbs) whilst the Sigma SD15 has sizing of 144mm x 107mm x 81mm (5.7" x 4.2" x 3.2") having a weight of 750 grams (1.65 lbs).

Take a look at the Ricoh GXR A12 50mm F2.5 Macro versus Sigma SD15 in the all new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Don't forget, the weight of an Interchangeable Lens Camera will change depending on the lens you are working with at that time. Below is the front view overall size comparison of the GXR A12 50mm F2.5 Macro compared to the SD15.

Ricoh GXR A12 50mm F2.5 Macro vs Sigma SD15 size comparison

Looking at dimensions and weight, the portability score of the GXR A12 50mm F2.5 Macro and SD15 is 77 and 59 respectively.

Ricoh GXR A12 50mm F2.5 Macro vs Sigma SD15 top view buttons comparison

Ricoh GXR A12 50mm F2.5 Macro vs Sigma SD15 Sensor Comparison

Quite often, it can be tough to see the gap between sensor sizes simply by looking at technical specs. The pic underneath might offer you a more clear sense of the sensor measurements in the GXR A12 50mm F2.5 Macro and SD15.

As you can tell, the 2 cameras enjoy the same exact sensor sizing albeit not the same resolution. You should count on the Ricoh GXR A12 50mm F2.5 Macro to give you greater detail having an extra 7MP. Higher resolution will help you crop pictures far more aggressively.

Ricoh GXR A12 50mm F2.5 Macro vs Sigma SD15 sensor size comparison

Ricoh GXR A12 50mm F2.5 Macro vs Sigma SD15 Screen and ViewFinder

Ricoh GXR A12 50mm F2.5 Macro vs Sigma SD15 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Ricoh GXR A12 50mm F2.5 Macro Portrait photography details
Sigma SD15 Portrait photography details
55
you can focus manually
sensor size is nice (APS-C)
exports RAW files
no liveview feature
megapixel count low (12 megapixels)
50
focusing manually
good sensor size (APS-C)
delivers RAW files
no liveview feature
megapixel count low (5 megapixels)
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Street Comparison

Ricoh GXR A12 50mm F2.5 Macro Street photography information
Sigma SD15 Street photography information
62
sensor size is nice (APS-C)
exports RAW files
no articulating screen
lack of image stabilization
52
good sensor size (APS-C)
delivers RAW files
fixed screen
lack of image stabilization
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Sports Comparison

Ricoh GXR A12 50mm F2.5 Macro Sports photography information
Sigma SD15 Sports photography information
32
sensor size is nice (APS-C)
can't change focal length (50mm)
no liveview feature
continuous shooting slow (3.0 fps)
lack of image stabilization
megapixel count low (12MP)
low battery power (320 per charge)
lacks phase detect AF
38
good sensor size (APS-C)
comes with phase detect auto focus
no liveview feature
continuous shooting slow (3.0 frames per second)
lack of image stabilization
megapixel count low (5MP)
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Travel Comparison

Travel photography with Ricoh GXR A12 50mm F2.5 Macro
Travel photography with Sigma SD15
49
has built in flash
low battery power (320 shots)
megapixel count low (12 megapixels)
doesn't contain selfie friendly display
somewhat slow maximum aperture (f2.5)
42
built-in flash
does not have Timelapse recording
megapixel count low (5 megapixels)
does not have a selfie friendly display
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Landscape Comparison

Ricoh GXR A12 50mm F2.5 Macro as a Landscape photography camera
Sigma SD15 as a Landscape photography camera
46
you can focus manually
screen is a good size (3 inch)
sensor size is nice (APS-C)
exports RAW files
fixed lens (fixed lens mount)
can't change focal length (50mm)
somewhat slow maximum aperture (f2.5)
no liveview feature
lack of image stabilization
megapixel count low (12 megapixels)
low battery power (320 CIPA)
51
focusing manually
interchangeable lenses (Sigma SA mount)
screen size is good (3 inches)
good sensor size (APS-C)
delivers RAW files
no liveview feature
lack of image stabilization
megapixel count low (5MP)
does not have Timelapse recording
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Vlogging Comparison

Ricoh GXR A12 50mm F2.5 Macro Vlogging details
Sigma SD15 Vlogging details
20
somewhat slow maximum aperture (f2.5)
doesn't contain selfie friendly display
lack of image stabilization
video resolution low (1280 x 720 resolution)
no external mic jack
9
no video
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Ricoh GXR A12 50mm F2.5 Macro vs Sigma SD15 Specifications

Detailed spec comparison table for Ricoh GXR A12 50mm F2.5 Macro and Sigma SD15
 Ricoh GXR A12 50mm F2.5 MacroSigma SD15
General Information
Company Ricoh Sigma
Model Ricoh GXR A12 50mm F2.5 Macro Sigma SD15
Type Advanced Mirrorless Advanced DSLR
Released 2009-11-10 2010-02-20
Physical type Rangefinder-style mirrorless Mid-size SLR
Sensor Information
Powered by GR engine III 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 12 megapixel 5 megapixel
Anti aliasing 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 1600
Max enhanced ISO - 3200
Lowest native ISO 200 100
RAW data
Lowest enhanced ISO - 50
Autofocusing
Focus manually
AF touch
Continuous AF
AF single
AF tracking
AF selectice
Center weighted AF
AF multi area
Live view AF
Face detect focusing
Contract detect focusing
Phase detect focusing
Lens
Lens mount fixed lens Sigma SA
Lens focal range 50mm (1x) -
Highest aperture f/2.5 -
Macro focus distance 1cm -
Number of lenses - 76
Focal length multiplier 1.5 1.7
Screen
Display type Fixed Type Fixed Type
Display size 3 inches 3 inches
Display resolution 920k dots 460k dots
Selfie friendly
Liveview
Touch screen
Viewfinder Information
Viewfinder type Electronic (optional) Optical (pentaprism)
Viewfinder coverage - 96 percent
Viewfinder magnification - 0.6x
Features
Minimum shutter speed 180 secs 30 secs
Fastest shutter speed 1/3200 secs 1/4000 secs
Continuous shutter rate 3.0 frames/s 3.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Custom WB
Image stabilization
Built-in flash
Flash range 3.00 m -
Flash modes Auto, On, Off, Red-Eye, Slow Sync, Manual -
Hot shoe
Auto exposure bracketing
White balance bracketing
Fastest flash synchronize - 1/180 secs
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
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 data format Motion JPEG -
Microphone 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
Environmental sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 453 gr (1.00 pounds) 750 gr (1.65 pounds)
Dimensions 114 x 70 x 77mm (4.5" x 2.8" x 3.0") 144 x 107 x 81mm (5.7" x 4.2" x 3.2")
DXO scores
DXO Overall 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 photos -
Type of battery Battery Pack -
Self timer Yes (2 or 10 sec, 10 sec (3 images) ) Yes (10 sec)
Time lapse recording
Type of storage SD/SDHC, Internal SD/SDHC card
Card slots Single Single
Retail cost $566 $1,500