Sigma DP2s vs Sony A55
86 Imaging
44 Features
31 Overall
38
67 Imaging
56 Features
80 Overall
65
Sigma DP2s vs Sony A55 Key Specs
(Full Review)
- 5MP - APS-C Sensor
- 2.5" Fixed Display
- ISO 50 - 3200
- 320 x 240 video
- 41mm (F) lens
- 280g - 113 x 60 x 56mm
- Launched February 2010
- Older Model is Sigma DP2
- Later Model is Sigma DP2x
(Full Review)
- 16MP - APS-C Sensor
- 3" Fully Articulated Screen
- ISO 100 - 12800 (Raise to 25600)
- Sensor based Image Stabilization
- 1920 x 1080 video
- Sony/Minolta Alpha Mount
- 500g - 124 x 92 x 85mm
- Launched August 2010
- Renewed by Sony A57
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Following is a comprehensive comparison of the Sigma DP2s vs Sony A55, former is a Large Sensor Compact while the latter is a Entry-Level DSLR by competitors Sigma and Sony. There exists a substantial gap among the sensor resolutions of the DP2s (5MP) and A55 (16MP) but they enjoy the same exact sensor sizing (APS-C).
Photography GlossaryThe DP2s was unveiled 6 months earlier than the A55 and they are of a similar age. Both of the cameras offer different body type with the Sigma DP2s being a Large Sensor Compact camera and the Sony A55 being a Compact SLR camera.
Before going in to a more detailed comparison, below is a simple summary of how the DP2s grades against the A55 in the way of portability, imaging, features and an overall score.
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This is a preview of the gallery images for Sigma DP2s & Sony SLT-A55. The full galleries are available at Sigma DP2s Gallery & Sony A55 Gallery.
Reasons to pick Sigma DP2s over the Sony A55
| DP2s | A55 |
|---|
Reasons to pick Sony A55 over the Sigma DP2s
| A55 | DP2s | |||
|---|---|---|---|---|
| Screen type | Fully Articulated |  | Fixed | Fully Articulating screen |
| Screen sizing | 3" |  | 2.5" | Bigger screen (+0.5") |
| Screen resolution | 921k |  | 230k | Clearer screen (+691k dot) |
| Selfie screen |  | Easy selfies |
Common features in the Sigma DP2s and Sony A55
| DP2s | A55 | |||
|---|---|---|---|---|
| Launched | February 2010 |  | August 2010 | Same age |
| Manual focus |  | Dial exact focus | ||
| Touch friendly screen |  | Neither provides Touch friendly screen |
Sigma DP2s vs Sony A55 Physical Comparison
For anyone who is intending to carry around your camera often, you'll have to factor in its weight and volume. The Sigma DP2s provides external dimensions of 113mm x 60mm x 56mm (4.4" x 2.4" x 2.2") along with a weight of 280 grams (0.62 lbs) while the Sony A55 has sizing of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") and a weight of 500 grams (1.10 lbs).
Look at the Sigma DP2s vs Sony A55 in our newest Camera & Lens Size Comparison Tool.
Keep in mind, the weight of an ILC will change depending on the lens you are using at the time. Following is the front view physical size comparison of the DP2s versus the A55.
Using dimensions and weight, the portability grade of the DP2s and A55 is 86 and 67 respectively.
Sigma DP2s vs Sony A55 Sensor Comparison
Sometimes, it's difficult to imagine the difference in sensor sizes simply by checking out a spec sheet. The image below will help offer you a stronger sense of the sensor sizes in the DP2s and A55.
As you can see, both of those cameras enjoy the same exact sensor sizing albeit different megapixels. You can expect the Sony A55 to provide extra detail having an extra 11 Megapixels. Higher resolution can also enable you to crop pictures far more aggressively.
Sigma DP2s vs Sony A55 Screen and ViewFinder
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Sigma DP2s vs Sony A55 Specifications
| Sigma DP2s | Sony SLT-A55 | |
|---|---|---|
| General Information | ||
| Brand Name | Sigma | Sony |
| Model type | Sigma DP2s | Sony SLT-A55 |
| Class | Large Sensor Compact | Entry-Level DSLR |
| Launched | 2010-02-20 | 2010-08-24 |
| Physical type | Large Sensor Compact | Compact SLR |
| Sensor Information | ||
| Chip | True II | Bionz |
| Sensor type | CMOS (Foveon X3) | CMOS |
| Sensor size | APS-C | APS-C |
| Sensor dimensions | 20.7 x 13.8mm | 23.5 x 15.6mm |
| Sensor surface area | 285.7mm² | 366.6mm² |
| Sensor resolution | 5 megapixel | 16 megapixel |
| Anti alias filter | ||
| Aspect ratio | 3:2 and 16:9 | 3:2 and 16:9 |
| Max resolution | 2640 x 1760 | 4912 x 3264 |
| Max native ISO | 3200 | 12800 |
| Max enhanced ISO | - | 25600 |
| Minimum native ISO | 50 | 100 |
| RAW pictures | ||
| Autofocusing | ||
| Manual focusing | ||
| Touch to focus | ||
| Continuous autofocus | ||
| Autofocus single | ||
| Autofocus tracking | ||
| Selective autofocus | ||
| Center weighted autofocus | ||
| Autofocus multi area | ||
| Autofocus live view | ||
| Face detect autofocus | ||
| Contract detect autofocus | ||
| Phase detect autofocus | ||
| Total focus points | - | 15 |
| Cross type focus points | - | 3 |
| Lens | ||
| Lens support | fixed lens | Sony/Minolta Alpha |
| Lens zoom range | 41mm (1x) | - |
| Amount of lenses | - | 143 |
| Focal length multiplier | 1.7 | 1.5 |
| Screen | ||
| Type of display | Fixed Type | Fully Articulated |
| Display diagonal | 2.5 inches | 3 inches |
| Resolution of display | 230k dots | 921k dots |
| Selfie friendly | ||
| Liveview | ||
| Touch functionality | ||
| Viewfinder Information | ||
| Viewfinder type | None | Electronic |
| Viewfinder resolution | - | 1,150k dots |
| Viewfinder coverage | - | 100 percent |
| Viewfinder magnification | - | 0.73x |
| Features | ||
| Min shutter speed | 15s | 30s |
| Max shutter speed | 1/2000s | 1/4000s |
| Continuous shutter rate | 3.0 frames/s | 10.0 frames/s |
| Shutter priority | ||
| Aperture priority | ||
| Manually set exposure | ||
| Exposure compensation | Yes | Yes |
| Custom white balance | ||
| Image stabilization | ||
| Integrated flash | ||
| Flash distance | 4.30 m | 10.00 m (@ ISO 100) |
| Flash options | Forced Flash, Red-Eye Reduction, Slow Synchro | Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless |
| External flash | ||
| Auto exposure bracketing | ||
| WB bracketing | ||
| Max flash synchronize | - | 1/160s |
| Exposure | ||
| Multisegment | ||
| Average | ||
| Spot | ||
| Partial | ||
| AF area | ||
| Center weighted | ||
| Video features | ||
| Supported video resolutions | 320 x 240 | 1920 x 1080 (60, 29.97 fps), 1440 x 1080 (30fps), 640 x 424 (29.97 fps) |
| Max video resolution | 320x240 | 1920x1080 |
| Video file format | Motion JPEG | MPEG-4, AVCHD, H.264 |
| Mic support | ||
| Headphone support | ||
| 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 | 280g (0.62 lbs) | 500g (1.10 lbs) |
| Dimensions | 113 x 60 x 56mm (4.4" x 2.4" 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 | - | 380 photos |
| Battery style | - | Battery Pack |
| Battery ID | - | NP-FW50 |
| Self timer | Yes (2 or 10 sec) | Yes (2 or 10 sec) |
| Time lapse recording | ||
| Storage type | SD/SDHC/MMC card | SD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo |
| Card slots | One | One |
| Retail cost | $940 | $800 |