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Ricoh GR Digital IV vs Sony A900

Portability
92
Imaging
35
Features
47
Overall
39
Ricoh GR Digital IV front
 
Sony Alpha DSLR-A900 front
Portability
54
Imaging
66
Features
62
Overall
64

Ricoh GR Digital IV vs Sony A900 Key Specs

Ricoh GR Digital IV
(Full Review)
  • 10MP - 1/1.7" Sensor
  • 3" Fixed Display
  • ISO 80 - 3200
  • Sensor-shift Image Stabilization
  • 640 x 480 video
  • 28mm (F1.9) lens
  • 190g - 109 x 59 x 33mm
  • Revealed September 2011
  • Superseded the Ricoh GR Digital III
Sony A900
(Full Review)
  • 25MP - Full frame Sensor
  • 3" Fixed Display
  • ISO 100 - 6400
  • Sensor based Image Stabilization
  • 1/8000s Maximum Shutter
  • No Video
  • Sony/Minolta Alpha Mount
  • 895g - 156 x 117 x 82mm
  • Released October 2008
  • Updated by Sony A99
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Ricoh GR Digital IV vs Sony A900 Overview

Lets look more closely at the Ricoh GR Digital IV vs Sony A900, former being a Small Sensor Compact while the other is a Advanced DSLR by brands Ricoh and Sony. There is a sizable difference between the image resolutions of the GR Digital IV (10MP) and A900 (25MP) and the GR Digital IV (1/1.7") and A900 (Full frame) posses totally different sensor size.

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The GR Digital IV was revealed 2 years later than the A900 and that is quite a significant difference as far as tech is concerned. Both cameras have different body design with the Ricoh GR Digital IV being a Compact camera and the Sony A900 being a Mid-size SLR camera.

Before diving right into a in-depth comparison, here is a quick synopsis of how the GR Digital IV matches up vs the A900 in terms of portability, imaging, features and an overall rating.

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Reasons to pick Ricoh GR Digital IV over the Sony A900

 GR Digital IV A900 
ReleasedSeptember 2011October 2008Fresher by 36 months
Display resolution1230k922kClearer display (+308k dot)

Reasons to pick Sony A900 over the Ricoh GR Digital IV

 A900 GR Digital IV 

Common features in the Ricoh GR Digital IV and Sony A900

 GR Digital IV A900 
Focus manually Dial accurate focus
Display typeFixed Fixed Fixed display
Display dimensions3"3"Equal display size
Selfie screen Neither contains selfie screen
Touch friendly display Neither contains Touch friendly display

Ricoh GR Digital IV vs Sony A900 Physical Comparison

When you are going to carry your camera frequently, you need to take into account its weight and volume. The Ricoh GR Digital IV has got outer dimensions of 109mm x 59mm x 33mm (4.3" x 2.3" x 1.3") accompanied by a weight of 190 grams (0.42 lbs) whilst the Sony A900 has sizing of 156mm x 117mm x 82mm (6.1" x 4.6" x 3.2") with a weight of 895 grams (1.97 lbs).

Look at the Ricoh GR Digital IV vs Sony A900 in our completely new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Always remember, the weight of an ILC will differ depending on the lens you choose during that time. Here is a front view dimensions comparison of the GR Digital IV and the A900.

Ricoh GR Digital IV vs Sony A900 size comparison

Factoring in size and weight, the portability rating of the GR Digital IV and A900 is 92 and 54 respectively.

Ricoh GR Digital IV vs Sony A900 top view buttons comparison

Ricoh GR Digital IV vs Sony A900 Sensor Comparison

Oftentimes, it's tough to visualise the contrast between sensor sizing just by looking at a spec sheet. The photograph underneath should provide you a greater sense of the sensor dimensions in the GR Digital IV and A900.

Clearly, both the cameras have different megapixels and different sensor sizing. The GR Digital IV using its tinier sensor will make getting shallower DOF tougher and the Sony A900 will give you more detail because of its extra 15MP. Greater resolution will also help you crop pics a bit more aggressively. The more recent GR Digital IV will have an advantage in sensor technology.

Ricoh GR Digital IV vs Sony A900 sensor size comparison

Ricoh GR Digital IV vs Sony A900 Screen and ViewFinder

Ricoh GR Digital IV vs Sony A900 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Ricoh GR Digital IV Portrait photography info
Sony A900 Portrait photography info
41
focusing manually
saves RAW files
low MP (10 megapixels)
sensor is tiny (1/1.7")
71
focusing manually
resolution is excellent (25MP)
great sensor size (Full frame)
saves RAW formats
does not have liveview
Photography Glossary

Street Comparison

Ricoh GR Digital IV Street photography features
Sony A900 Street photography features
65
has image stabilization (Sensor-shift)
saves RAW files
no articulating screen
sensor is tiny (1/1.7")
66
built in image stabilization (Sensor based)
great sensor size (Full frame)
saves RAW formats
weather sealing
no moving screen
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Sports Comparison

Ricoh GR Digital IV Sports photography highlights
Sony A900 Sports photography highlights
34
has image stabilization (Sensor-shift)
better than average battery (390 shots)
focal length is fixed (28mm)
low MP (10MP)
sensor is tiny (1/1.7")
does not have phase detect auto focus
70
maximum shutter speed is high (1/8,000s)
built in image stabilization (Sensor based)
resolution is excellent (25MP)
great sensor size (Full frame)
weather sealing
supports phase detect autofocus
does not have liveview
very slow continuous shooting (5.0 frames/s)
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Travel Comparison

Ricoh GR Digital IV Travel photography details
Sony A900 Travel photography details
67
better than average battery (390 CIPA)
flash built-in
great maximum aperture (f1.9)
low MP (10 megapixels)
doesn't offer selfie friendly screen
54
weather sealing
resolution is excellent (25 megapixels)
missing Time Lapse mode
doesn't offer selfie friendly display
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Landscape Comparison

Ricoh GR Digital IV Landscape photography advice
Sony A900 Landscape photography advice
53
focusing manually
great maximum aperture (f1.9)
screen size is good (3")
has image stabilization (Sensor-shift)
saves RAW files
better than average battery (390 per charge)
fixed lens (fixed lens mount)
focal length is fixed (28mm)
low MP (10MP)
sensor is tiny (1/1.7")
72
focusing manually
interchangeable lenses (Sony/Minolta Alpha mount)
screen is a good size (3 inches)
built in image stabilization (Sensor based)
resolution is excellent (25 megapixels)
great sensor size (Full frame)
saves RAW formats
weather sealing
2 card slots
does not have liveview
missing Time Lapse mode
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Vlogging Comparison

Ricoh GR Digital IV Vlogging advice
Sony A900 Vlogging advice
29
great maximum aperture (f1.9)
has image stabilization (Sensor-shift)
doesn't offer selfie friendly screen
video res low (640 x 480 resolution)
missing microphone support
9
no video shooting
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Ricoh GR Digital IV vs Sony A900 Specifications

Detailed spec comparison table for Ricoh GR Digital IV and Sony A900
 Ricoh GR Digital IVSony Alpha DSLR-A900
General Information
Company Ricoh Sony
Model type Ricoh GR Digital IV Sony Alpha DSLR-A900
Class Small Sensor Compact Advanced DSLR
Revealed 2011-09-15 2008-10-22
Physical type Compact Mid-size SLR
Sensor Information
Chip - Bionz
Sensor type CCD CMOS
Sensor size 1/1.7" Full frame
Sensor dimensions 7.44 x 5.58mm 35.9 x 24mm
Sensor area 41.5mm² 861.6mm²
Sensor resolution 10MP 25MP
Anti alias filter
Aspect ratio 1:1, 4:3 and 3:2 3:2 and 16:9
Maximum resolution 3648 x 2736 6048 x 4032
Maximum native ISO 3200 6400
Lowest native ISO 80 100
RAW support
Autofocusing
Focus manually
Touch to focus
Autofocus continuous
Single autofocus
Autofocus tracking
Autofocus selectice
Autofocus center weighted
Multi area autofocus
Live view autofocus
Face detect autofocus
Contract detect autofocus
Phase detect autofocus
Total focus points - 9
Lens
Lens mount type fixed lens Sony/Minolta Alpha
Lens zoom range 28mm (1x) -
Largest aperture f/1.9 -
Macro focusing range 1cm -
Amount of lenses - 143
Crop factor 4.8 1
Screen
Display type Fixed Type Fixed Type
Display sizing 3" 3"
Resolution of display 1,230 thousand dots 922 thousand dots
Selfie friendly
Liveview
Touch operation
Display technology - TFT Xtra Fine color LCD
Viewfinder Information
Viewfinder type Optical (optional) Optical (pentaprism)
Viewfinder coverage - 100%
Viewfinder magnification - 0.74x
Features
Slowest shutter speed 1 secs 30 secs
Maximum shutter speed 1/2000 secs 1/8000 secs
Continuous shooting rate - 5.0 frames/s
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Custom white balance
Image stabilization
Inbuilt flash
Flash distance 3.00 m no built-in flash
Flash options Auto, On, Off, Red-Eye, Slow Sync, Manual Auto, On, Off, Red-Eye, Slow Sync, Rear Curtain, Fill-in, Wireless
External flash
AE bracketing
White balance bracketing
Maximum flash synchronize - 1/250 secs
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps) -
Maximum video resolution 640x480 None
Video data format Motion JPEG -
Mic 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
Environment sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 190 gr (0.42 pounds) 895 gr (1.97 pounds)
Physical dimensions 109 x 59 x 33mm (4.3" x 2.3" x 1.3") 156 x 117 x 82mm (6.1" x 4.6" x 3.2")
DXO scores
DXO All around rating not tested 79
DXO Color Depth rating not tested 23.7
DXO Dynamic range rating not tested 12.3
DXO Low light rating not tested 1431
Other
Battery life 390 images 880 images
Battery style Battery Pack Battery Pack
Battery ID DB65 NP-FM500H
Self timer Yes (2 or 10 sec) Yes (2 or 10 sec)
Time lapse recording
Type of storage SD/SDHC, Internal Compact Flash (Type I or II), Memory Stick Duo / Pro Duo, UDMA Mode 5, Supports FAT12 / FAT16 / FAT32
Card slots One Dual
Retail pricing $599 $2,736