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Sigma DP2 vs Sony A900

Portability
86
Imaging
44
Features
28
Overall
37
Sigma DP2 front
 
Sony Alpha DSLR-A900 front
Portability
54
Imaging
67
Features
62
Overall
65

Sigma DP2 vs Sony A900 Key Specs

Sigma DP2
(Full Review)
  • 5MP - APS-C Sensor
  • 2.5" Fixed Display
  • ISO 200 - 3200
  • 320 x 240 video
  • 41mm (F) lens
  • 280g - 113 x 60 x 56mm
  • Released September 2009
  • Updated by Sigma DP2s
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
  • Revealed October 2008
  • Refreshed by Sony A99
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Sigma DP2 vs Sony A900 Overview

Here is a extended review of the Sigma DP2 versus Sony A900, former being a Large Sensor Compact while the other is a Advanced DSLR by companies Sigma and Sony. There exists a large gap among the image resolutions of the DP2 (5MP) and A900 (25MP) and the DP2 (APS-C) and A900 (Full frame) boast totally different sensor sizing.

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The DP2 was manufactured 12 months later than the A900 which means that they are both of a similar age. The two cameras feature different body design with the Sigma DP2 being a Large Sensor Compact camera and the Sony A900 being a Mid-size SLR camera.

Before delving into a thorough comparison, here is a short synopsis of how the DP2 grades vs the A900 with respect to portability, imaging, features and an overall rating.

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Reasons to pick Sigma DP2 over the Sony A900

 DP2 A900 
RevealedSeptember 2009October 2008Fresher by 12 months

Reasons to pick Sony A900 over the Sigma DP2

 A900 DP2 
Display size3"2.5"Larger display (+0.5")
Display resolution922k230kClearer display (+692k dot)

Common features in the Sigma DP2 and Sony A900

 DP2 A900 
Manual focus More precise focusing
Display typeFixed Fixed Fixed display
Selfie screen Absent selfie screen
Touch friendly display Neither comes with Touch friendly display

Sigma DP2 vs Sony A900 Physical Comparison

When you are aiming to carry your camera often, you are going to need to take into account its weight and dimensions. The Sigma DP2 comes with outer dimensions of 113mm x 60mm x 56mm (4.4" x 2.4" x 2.2") having a weight of 280 grams (0.62 lbs) while the Sony A900 has dimensions of 156mm x 117mm x 82mm (6.1" x 4.6" x 3.2") having a weight of 895 grams (1.97 lbs).

Compare the Sigma DP2 versus Sony A900 in our completely new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into consideration, the weight of an ILC will differ dependant on the lens you are utilising during that time. Here is a front view over all size comparison of the DP2 versus the A900.

Sigma DP2 vs Sony A900 size comparison

Taking into consideration dimensions and weight, the portability rating of the DP2 and A900 is 86 and 54 respectively.

Sigma DP2 vs Sony A900 top view buttons comparison

Sigma DP2 vs Sony A900 Sensor Comparison

Quite often, its difficult to see the gap in sensor sizing merely by seeing specs. The visual below should offer you a clearer sense of the sensor sizes in the DP2 and A900.

All in all, the two cameras come with different megapixel count and different sensor sizing. The DP2 due to its smaller sensor will make shooting shallow depth of field more difficult and the Sony A900 will provide extra detail due to its extra 20MP. Greater resolution will make it easier to crop images a good deal more aggressively. The more recent DP2 will have an advantage when it comes to sensor tech.

Sigma DP2 vs Sony A900 sensor size comparison

Sigma DP2 vs Sony A900 Screen and ViewFinder

Sigma DP2 vs Sony A900 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Sigma DP2 as a Portrait photography camera
Sony A900 as a Portrait photography camera
56
focusing manually
nice sensor size (APS-C)
exports RAW formats
low MP (5MP)
72
has manual focus
MP count high (25MP)
large sensor size (Full frame)
delivers RAW formats
doesn't have liveview
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Street Comparison

Sigma DP2 Street photography highlights
Sony A900 Street photography highlights
67
nice sensor size (APS-C)
exports RAW formats
lighter than competition (280 grams)
screen does not articulate
lack of image stabilization
66
has image stabilization (Sensor based)
large sensor size (Full frame)
delivers RAW formats
environment proofing
no moving screen
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Sports Comparison

Sigma DP2 Sports photography details
Sony A900 Sports photography details
30
nice sensor size (APS-C)
can't change focal length (41mm)
max fps low (3.0 fps)
lack of image stabilization
low MP (5MP)
doesn't have phase detect autofocus
71
maximum shutter speed is high (1/8,000s)
has image stabilization (Sensor based)
MP count high (25 megapixels)
large sensor size (Full frame)
environment proofing
comes with phase detect auto focus
doesn't have liveview
continuous shooting slow (5.0 frames/s)
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Travel Comparison

Sigma DP2 Travel photography info
Sony A900 Travel photography info
67
lighter than competition (280g)
flash built-in
great maximum aperture (f)
low MP (5 megapixels)
doesn't have a selfie friendly display
55
environment proofing
MP count high (25 megapixels)
missing Time Lapse function
display is not selfie friendly
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Landscape Comparison

Sigma DP2 Landscape photography factors
Sony A900 Landscape photography factors
48
focusing manually
great maximum aperture (f)
nice sensor size (APS-C)
exports RAW formats
lens is fixed (fixed lens mount)
can't change focal length (41mm)
small screen (2.5 inch)
lack of image stabilization
low MP (5 megapixels)
73
has manual focus
switch lenses (Sony/Minolta Alpha mount)
screen is a good size (3 inch)
has image stabilization (Sensor based)
MP count high (25MP)
large sensor size (Full frame)
delivers RAW formats
environment proofing
has dual storage slots
doesn't have liveview
missing Time Lapse function
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Vlogging Comparison

Sigma DP2 Vlogging advice
Sony A900 Vlogging advice
28
great maximum aperture (f)
lighter than competition (280g)
doesn't have a selfie friendly display
lack of image stabilization
video quality not great (320 x 240 pxls)
doesn't have external mic support
9
can't record video
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Sigma DP2 vs Sony A900 Specifications

Detailed spec comparison table for Sigma DP2 and Sony A900
 Sigma DP2Sony Alpha DSLR-A900
General Information
Brand Sigma Sony
Model type Sigma DP2 Sony Alpha DSLR-A900
Type Large Sensor Compact Advanced DSLR
Released 2009-09-21 2008-10-22
Body design Large Sensor Compact Mid-size SLR
Sensor Information
Chip - Bionz
Sensor type CMOS (Foveon X3) CMOS
Sensor size APS-C Full frame
Sensor dimensions 20.7 x 13.8mm 35.9 x 24mm
Sensor surface area 285.7mm² 861.6mm²
Sensor resolution 5 megapixels 25 megapixels
Anti alias filter
Aspect ratio 3:2 and 16:9 3:2 and 16:9
Highest Possible resolution 2640 x 1760 6048 x 4032
Maximum native ISO 3200 6400
Minimum native ISO 200 100
RAW photos
Autofocusing
Manual focusing
Touch to focus
Continuous AF
AF single
AF tracking
AF selectice
AF center weighted
AF multi area
Live view AF
Face detect focusing
Contract detect focusing
Phase detect focusing
Total focus points - 9
Lens
Lens support fixed lens Sony/Minolta Alpha
Lens zoom range 41mm (1x) -
Amount of lenses - 143
Focal length multiplier 1.7 1
Screen
Display type Fixed Type Fixed Type
Display diagonal 2.5 inch 3 inch
Resolution of display 230k dot 922k dot
Selfie friendly
Liveview
Touch function
Display technology - TFT Xtra Fine color LCD
Viewfinder Information
Viewfinder type None Optical (pentaprism)
Viewfinder coverage - 100 percent
Viewfinder magnification - 0.74x
Features
Minimum shutter speed 15 secs 30 secs
Fastest shutter speed 1/2000 secs 1/8000 secs
Continuous shutter speed 3.0 frames/s 5.0 frames/s
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Custom WB
Image stabilization
Integrated flash
Flash distance 4.30 m no built-in flash
Flash modes Forced Flash, Red-Eye Reduction, Slow Synchro Auto, On, Off, Red-Eye, Slow Sync, Rear Curtain, Fill-in, Wireless
External flash
AEB
White balance bracketing
Fastest flash sync - 1/250 secs
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported video resolutions 320 x 240 (30 fps) -
Maximum video resolution 320x240 None
Video data format Motion JPEG -
Mic 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
Environmental seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 280g (0.62 lb) 895g (1.97 lb)
Physical dimensions 113 x 60 x 56mm (4.4" x 2.4" x 2.2") 156 x 117 x 82mm (6.1" x 4.6" x 3.2")
DXO scores
DXO Overall 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 - 880 photographs
Style of battery - Battery Pack
Battery ID - NP-FM500H
Self timer Yes (2 or 10 sec) Yes (2 or 10 sec)
Time lapse feature
Storage media SD/SDHC/MMC card Compact Flash (Type I or II), Memory Stick Duo / Pro Duo, UDMA Mode 5, Supports FAT12 / FAT16 / FAT32
Storage slots Single Two
Cost at release $649 $2,736