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Ricoh GXR GR Lens A12 28mm F2.5 vs Sony A55

Portability
88
Imaging
52
Features
37
Overall
46
Ricoh GXR GR Lens A12 28mm F2.5 front
 
Sony SLT-A55 front
Portability
67
Imaging
56
Features
80
Overall
65

Ricoh GXR GR Lens A12 28mm F2.5 vs Sony A55 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
  • Launched September 2010
Sony A55
(Full Review)
  • 16MP - APS-C Sensor
  • 3" Fully Articulated Display
  • ISO 100 - 12800 (Raise to 25600)
  • Sensor based Image Stabilization
  • 1920 x 1080 video
  • Sony/Minolta Alpha Mount
  • 500g - 124 x 92 x 85mm
  • Revealed August 2010
  • Refreshed by Sony A57
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Ricoh GXR GR Lens A12 28mm F2.5 vs Sony A55 Overview

Lets look more closely at the Ricoh GXR GR Lens A12 28mm F2.5 and Sony A55, former is a Advanced Mirrorless while the other is a Entry-Level DSLR by rivals Ricoh and Sony. There is a sizable difference between the image resolutions of the GXR GR Lens A12 28mm F2.5 (12MP) and A55 (16MP) but they come with the exact same sensor sizes (APS-C).

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The GXR GR Lens A12 28mm F2.5 was introduced very close to the A55 which means that they are of a similar age. Both the cameras come with different body type with the Ricoh GXR GR Lens A12 28mm F2.5 being a Rangefinder-style mirrorless camera and the Sony A55 being a Compact SLR camera.

Before getting straight into a full comparison, below is a concise highlight of how the GXR GR Lens A12 28mm F2.5 matches up against the A55 with regards to portability, imaging, features and an overall mark.

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Reasons to pick Ricoh GXR GR Lens A12 28mm F2.5 over the Sony A55

 GXR GR Lens A12 28mm F2.5 A55 

Reasons to pick Sony A55 over the Ricoh GXR GR Lens A12 28mm F2.5

 A55 GXR GR Lens A12 28mm F2.5 
Display typeFully ArticulatedFixed Fully Articulating display
Display resolution921k920kClearer display (+1k dot)
Selfie screen Easy selfies

Common features in the Ricoh GXR GR Lens A12 28mm F2.5 and Sony A55

 GXR GR Lens A12 28mm F2.5 A55 
RevealedSeptember 2010August 2010Similar age
Manual focus Very accurate focus
Display dimension3"3"Identical display dimensions
Touch display Missing Touch display

Ricoh GXR GR Lens A12 28mm F2.5 vs Sony A55 Physical Comparison

When you are planning to travel with your camera, you have to think about its weight and proportions. The Ricoh GXR GR Lens A12 28mm F2.5 has got external dimensions of 113mm x 70mm x 56mm (4.4" x 2.8" x 2.2") having a weight of 140 grams (0.31 lbs) while the Sony A55 has measurements of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") and a weight of 500 grams (1.10 lbs).

Analyze the Ricoh GXR GR Lens A12 28mm F2.5 and Sony A55 in our brand new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Keep in mind, the weight of an ILC will vary based on the lens you are working with at that time. Underneath is the front view measurement comparison of the GXR GR Lens A12 28mm F2.5 versus the A55.

Ricoh GXR GR Lens A12 28mm F2.5 vs Sony A55 size comparison

Looking at size and weight, the portability rating of the GXR GR Lens A12 28mm F2.5 and A55 is 88 and 67 respectively.

Ricoh GXR GR Lens A12 28mm F2.5 vs Sony A55 top view buttons comparison

Ricoh GXR GR Lens A12 28mm F2.5 vs Sony A55 Sensor Comparison

Often, it is tough to envision the contrast between sensor dimensions just by looking at specifications. The image below may provide you a far better sense of the sensor dimensions in the GXR GR Lens A12 28mm F2.5 and A55.

Plainly, the 2 cameras posses the exact same sensor measurements but not the same resolution. You can anticipate the Sony A55 to give you greater detail using its extra 4 Megapixels. Greater resolution will enable you to crop images somewhat more aggressively.

Ricoh GXR GR Lens A12 28mm F2.5 vs Sony A55 sensor size comparison

Ricoh GXR GR Lens A12 28mm F2.5 vs Sony A55 Screen and ViewFinder

Ricoh GXR GR Lens A12 28mm F2.5 vs Sony A55 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 Sony A55
57
manual focus
sensor size is decent (APS-C)
provides face detect focus
delivers RAW files
doesn't have liveview
sensor resolution not great (12MP)
73
manual focus
good MP (16 megapixels)
sensor size is good (APS-C)
features face detect focusing
supports RAW formats
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Street Comparison

Ricoh GXR GR Lens A12 28mm F2.5 Street photography information
Sony A55 Street photography information
70
sensor size is decent (APS-C)
delivers RAW files
lighter than competition in class (140g)
screen is fixed
lack of image stabilization
77
screen articulates fully
has image stabilization (Sensor based)
sensor size is good (APS-C)
supports RAW formats
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Sports Comparison

Ricoh GXR GR Lens A12 28mm F2.5 Sports photography info
Sony A55 Sports photography info
32
sensor size is decent (APS-C)
focal length is fixed (28mm)
doesn't have liveview
continuous shooting slow (5.0 frames/s)
lack of image stabilization
sensor resolution not great (12 megapixels)
not so great battery life (320 shots)
lack of phase detect auto focus
68
has image stabilization (Sensor based)
good MP (16MP)
sensor size is good (APS-C)
sensor has phase detect AF
terrible battery pack (380 shots)
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Travel Comparison

Travel photography with Ricoh GXR GR Lens A12 28mm F2.5
Travel photography with Sony A55
58
lighter than competition in class (140 grams)
flash built-in
not so great battery life (320 per charge)
sensor resolution not great (12 megapixels)
does not have a selfie friendly screen
slow max aperture (f2.5)
62
good MP (16MP)
has built in flash
selfie friendly display
no Timelapse mode
terrible battery pack (380 CIPA)
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Landscape Comparison

Ricoh GXR GR Lens A12 28mm F2.5 Landscape photography information
Sony A55 Landscape photography information
47
manual focus
pretty good screen size (3 inches)
sensor size is decent (APS-C)
delivers RAW files
lens is fixed (fixed lens mount)
focal length is fixed (28mm)
slow max aperture (f2.5)
doesn't have liveview
lack of image stabilization
sensor resolution not great (12 megapixels)
not so great battery life (320 shots)
67
manual focus
switch lenses (Sony/Minolta Alpha mount)
good sized screen (3")
has image stabilization (Sensor based)
good MP (16MP)
sensor size is good (APS-C)
supports RAW formats
terrible battery pack (380 CIPA)
no Timelapse mode
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Vlogging Comparison

Ricoh GXR GR Lens A12 28mm F2.5 Vlogging factors
Sony A55 Vlogging factors
28
provides face detect focus
lighter than competition in class (140g)
slow max aperture (f2.5)
does not have a selfie friendly screen
lack of image stabilization
low quality video (1280 x 720 pixels)
missing microphone support
78
selfie friendly display
has image stabilization (Sensor based)
features face detect focusing
high res video (1920 x 1080 pxls)
includes microphone socket
Photography Glossary

Ricoh GXR GR Lens A12 28mm F2.5 vs Sony A55 Specifications

Detailed spec comparison table for Ricoh GXR GR Lens A12 28mm F2.5 and Sony A55
 Ricoh GXR GR Lens A12 28mm F2.5Sony SLT-A55
General Information
Make Ricoh Sony
Model type Ricoh GXR GR Lens A12 28mm F2.5 Sony SLT-A55
Type Advanced Mirrorless Entry-Level DSLR
Launched 2010-09-21 2010-08-24
Physical type Rangefinder-style mirrorless Compact SLR
Sensor Information
Processor GR Engine III Bionz
Sensor type CMOS CMOS
Sensor size APS-C APS-C
Sensor measurements 23.6 x 15.7mm 23.5 x 15.6mm
Sensor surface area 370.5mm² 366.6mm²
Sensor resolution 12 megapixel 16 megapixel
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2 and 16:9
Highest Possible resolution 4288 x 2848 4912 x 3264
Maximum native ISO 3200 12800
Maximum enhanced ISO - 25600
Min native ISO 200 100
RAW support
Autofocusing
Manual focusing
Autofocus touch
Continuous autofocus
Autofocus single
Autofocus tracking
Selective autofocus
Autofocus center weighted
Autofocus multi area
Autofocus live view
Face detect focus
Contract detect focus
Phase detect focus
Total focus points - 15
Cross type focus points - 3
Lens
Lens support fixed lens Sony/Minolta Alpha
Lens zoom range 28mm (1x) -
Max aperture f/2.5 -
Available lenses - 143
Focal length multiplier 1.5 1.5
Screen
Type of display Fixed Type Fully Articulated
Display sizing 3 inches 3 inches
Resolution of display 920k dots 921k dots
Selfie friendly
Liveview
Touch operation
Display tech TFT color LCD -
Viewfinder Information
Viewfinder Electronic (optional) Electronic
Viewfinder resolution - 1,150k dots
Viewfinder coverage - 100 percent
Viewfinder magnification - 0.73x
Features
Min shutter speed 180s 30s
Max shutter speed 1/3200s 1/4000s
Continuous shutter rate 5.0 frames/s 10.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Change white balance
Image stabilization
Built-in flash
Flash distance - 10.00 m (@ ISO 100)
Flash options Auto, On, Off, Red-Eye, Slow Sync, Manual Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless
External flash
AE bracketing
WB bracketing
Max flash synchronize - 1/160s
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) 1920 x 1080 (60, 29.97 fps), 1440 x 1080 (30fps), 640 x 424 (29.97 fps)
Maximum video resolution 1280x720 1920x1080
Video data format MPEG-4 MPEG-4, AVCHD, H.264
Microphone port
Headphone port
Connectivity
Wireless None Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None BuiltIn
Physical
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 140 gr (0.31 lbs) 500 gr (1.10 lbs)
Dimensions 113 x 70 x 56mm (4.4" x 2.8" x 2.2") 124 x 92 x 85mm (4.9" x 3.6" x 3.3")
DXO scores
DXO Overall rating not tested 73
DXO Color Depth rating not tested 23.0
DXO Dynamic range rating not tested 12.4
DXO Low light rating not tested 816
Other
Battery life 320 shots 380 shots
Battery type Battery Pack Battery Pack
Battery ID DB-90 NP-FW50
Self timer Yes (2 or 10 sec, 10 sec (3 images) ) Yes (2 or 10 sec)
Time lapse feature
Storage type SD/SDHC, Internal SD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo
Card slots One One
Retail cost $566 $800