Samsung NX20 vs Sony A55
83 Imaging
61 Features
73 Overall
65
67 Imaging
56 Features
80 Overall
65
Samsung NX20 vs Sony A55 Key Specs
(Full Review)
- 20MP - APS-C Sensor
- 3" Fully Articulated Display
- ISO 100 - 12800
- 1/8000s Maximum Shutter
- 1920 x 1080 video
- Samsung NX Mount
- 341g - 122 x 90 x 40mm
- Announced April 2012
- Old Model is Samsung NX11
- Replacement is Samsung NX30
(Full Review)
- 16MP - APS-C Sensor
- 3" Fully Articulated Screen
- ISO 100 - 12800 (Push to 25600)
- Sensor based Image Stabilization
- 1920 x 1080 video
- Sony/Minolta Alpha Mount
- 500g - 124 x 92 x 85mm
- Released August 2010
- Updated by Sony A57
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In this article, we will be evaluating the Samsung NX20 and Sony A55, one is a Advanced Mirrorless and the latter is a Entry-Level DSLR by rivals Samsung and Sony. There exists a big gap among the sensor resolutions of the NX20 (20MP) and A55 (16MP) but they possess the same exact sensor sizing (APS-C).
Photography GlossaryThe NX20 was brought out 21 months after the A55 which makes the cameras a generation away from one another. Both of the cameras offer different body type with the Samsung NX20 being a SLR-style mirrorless camera and the Sony A55 being a Compact SLR camera.
Before getting in to a thorough comparison, below is a simple overview of how the NX20 grades versus the A55 in the way of portability, imaging, features and an overall mark.
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This is a preview of the gallery photos for Samsung NX20 and Sony SLT-A55. The entire galleries are available at Samsung NX20 Gallery and Sony A55 Gallery.
Reasons to pick Samsung NX20 over the Sony A55
| NX20 | A55 | |||
|---|---|---|---|---|
| Released | April 2012 |  | August 2010 | Newer by 21 months |
Reasons to pick Sony A55 over the Samsung NX20
| A55 | NX20 | |||
|---|---|---|---|---|
| Screen resolution | 921k |  | 614k | Sharper screen (+307k dot) |
Common features in the Samsung NX20 and Sony A55
| NX20 | A55 | |||
|---|---|---|---|---|
| Manual focus |  | Very exact focusing | ||
| Screen type | Fully Articulated |  | Fully Articulated | Fully Articulated screen |
| Screen sizing | 3" |  | 3" | Equivalent screen measurement |
| Selfie screen |  | Both good for selfies | ||
| Touch screen |  | Neither has Touch screen |
Samsung NX20 vs Sony A55 Physical Comparison
In case you're going to travel with your camera frequently, you will want to factor in its weight and measurements. The Samsung NX20 has physical measurements of 122mm x 90mm x 40mm (4.8" x 3.5" x 1.6") having a weight of 341 grams (0.75 lbs) while the Sony A55 has proportions of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") accompanied by a weight of 500 grams (1.10 lbs).
Analyze the Samsung NX20 and Sony A55 in the latest Camera with Lens Size Comparison Tool.
Don't forget, the weight of an Interchangeable Lens Camera will vary dependant on the lens you choose at the time. Following is the front view physical size comparison of the NX20 against the A55.
Looking at dimensions and weight, the portability score of the NX20 and A55 is 83 and 67 respectively.
Samsung NX20 vs Sony A55 Sensor Comparison
Typically, it is tough to visualise the difference in sensor dimensions merely by viewing specifications. The picture below will give you a clearer sense of the sensor measurements in the NX20 and A55.
To sum up, each of these cameras enjoy the same exact sensor sizing albeit not the same resolution. You should count on the Samsung NX20 to render extra detail having its extra 4MP. Higher resolution can also enable you to crop shots far more aggressively. The fresher NX20 will have an edge in sensor innovation.
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Samsung NX20 vs Sony A55 Specifications
| Samsung NX20 | Sony SLT-A55 | |
|---|---|---|
| General Information | ||
| Company | Samsung | Sony |
| Model | Samsung NX20 | Sony SLT-A55 |
| Category | Advanced Mirrorless | Entry-Level DSLR |
| Announced | 2012-04-20 | 2010-08-24 |
| Body design | SLR-style mirrorless | Compact SLR |
| Sensor Information | ||
| Powered by | - | Bionz |
| Sensor type | CMOS | CMOS |
| Sensor size | APS-C | APS-C |
| Sensor measurements | 23.5 x 15.7mm | 23.5 x 15.6mm |
| Sensor surface area | 369.0mm² | 366.6mm² |
| Sensor resolution | 20MP | 16MP |
| Anti aliasing filter | ||
| Aspect ratio | 1:1, 3:2 and 16:9 | 3:2 and 16:9 |
| Full resolution | 5472 x 3648 | 4912 x 3264 |
| Max native ISO | 12800 | 12800 |
| Max boosted ISO | - | 25600 |
| Min native ISO | 100 | 100 |
| RAW support | ||
| Autofocusing | ||
| Focus manually | ||
| Touch focus | ||
| Continuous autofocus | ||
| Autofocus single | ||
| Tracking autofocus | ||
| Selective autofocus | ||
| Center weighted autofocus | ||
| Autofocus multi area | ||
| Autofocus live view | ||
| Face detect autofocus | ||
| Contract detect autofocus | ||
| Phase detect autofocus | ||
| Number of focus points | 15 | 15 |
| Cross focus points | - | 3 |
| Lens | ||
| Lens mounting type | Samsung NX | Sony/Minolta Alpha |
| Number of lenses | 32 | 143 |
| Crop factor | 1.5 | 1.5 |
| Screen | ||
| Display type | Fully Articulated | Fully Articulated |
| Display sizing | 3 inches | 3 inches |
| Display resolution | 614k dot | 921k dot |
| Selfie friendly | ||
| Liveview | ||
| Touch operation | ||
| Display tech | Active Matrix OLED screen | - |
| Viewfinder Information | ||
| Viewfinder | Electronic | Electronic |
| Viewfinder resolution | - | 1,150k dot |
| Viewfinder coverage | 100 percent | 100 percent |
| Viewfinder magnification | 0.7x | 0.73x |
| Features | ||
| Slowest shutter speed | 30 seconds | 30 seconds |
| Maximum shutter speed | 1/8000 seconds | 1/4000 seconds |
| Continuous shooting speed | 8.0 frames per second | 10.0 frames per second |
| Shutter priority | ||
| Aperture priority | ||
| Expose Manually | ||
| Exposure compensation | Yes | Yes |
| Custom white balance | ||
| Image stabilization | ||
| Integrated flash | ||
| Flash range | 11.00 m | 10.00 m (@ ISO 100) |
| Flash settings | Auto, On, Off, Red-eye, Fill-in, 1st/2nd Curtain, Smart Flash, Manual | Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless |
| Hot shoe | ||
| Auto exposure bracketing | ||
| WB bracketing | ||
| Maximum flash sync | 1/180 seconds | 1/160 seconds |
| Exposure | ||
| Multisegment exposure | ||
| Average exposure | ||
| Spot exposure | ||
| Partial exposure | ||
| AF area exposure | ||
| Center weighted exposure | ||
| Video features | ||
| Video resolutions | 1920 x 1080 (30 fps), 1920 x 810 (24 fps) 1280 x 720 (30 fps), 640 x 480 (30 fps), 320 x 240 (30 fps) | 1920 x 1080 (60, 29.97 fps), 1440 x 1080 (30fps), 640 x 424 (29.97 fps) |
| Max video resolution | 1920x1080 | 1920x1080 |
| Video file format | MPEG-4, H.264 | MPEG-4, AVCHD, H.264 |
| Microphone input | ||
| Headphone input | ||
| Connectivity | ||
| Wireless | Built-In | Eye-Fi Connected |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 2.0 (480 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
| GPS | Optional | BuiltIn |
| Physical | ||
| Environment seal | ||
| Water proof | ||
| Dust proof | ||
| Shock proof | ||
| Crush proof | ||
| Freeze proof | ||
| Weight | 341g (0.75 lb) | 500g (1.10 lb) |
| Dimensions | 122 x 90 x 40mm (4.8" x 3.5" x 1.6") | 124 x 92 x 85mm (4.9" x 3.6" x 3.3") |
| DXO scores | ||
| DXO All around score | 75 | 73 |
| DXO Color Depth score | 23.4 | 23.0 |
| DXO Dynamic range score | 12.9 | 12.4 |
| DXO Low light score | 785 | 816 |
| Other | ||
| Battery life | 360 shots | 380 shots |
| Style of battery | Battery Pack | Battery Pack |
| Battery model | BP1130 | NP-FW50 |
| Self timer | Yes (2 sec to 30 sec) | Yes (2 or 10 sec) |
| Time lapse recording | ||
| Type of storage | SD/SDHC/SDXC | SD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo |
| Storage slots | One | One |
| Pricing at launch | $1,100 | $800 |