Samsung GX-20 vs Sony A77
58 Imaging
53 Features
52 Overall
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59 Imaging
63 Features
83 Overall
71
Samsung GX-20 vs Sony A77 Key Specs
(Full Review)
- 15MP - APS-C Sensor
- 2.7" Fixed Display
- ISO 100 - 3200 (Boost to 6400)
- Sensor based Image Stabilization
- No Video
- Pentax KAF2 Mount
- 800g - 142 x 101 x 72mm
- Announced January 2008
- Replaced the Samsung GX-10
(Full Review)
- 24MP - APS-C Sensor
- 3" Fully Articulated Display
- ISO 50 - 16000 (Bump to 25600)
- Sensor based Image Stabilization
- 1/8000s Maximum Shutter
- 1920 x 1080 video
- Sony/Minolta Alpha Mount
- 732g - 143 x 104 x 81mm
- Launched October 2011
- Previous Model is Sony A700
- New Model is Sony A77 II
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Its time to take a deeper look at the Samsung GX-20 vs Sony A77, both Advanced DSLR cameras by manufacturers Samsung and Sony. There exists a considerable gap among the resolutions of the GX-20 (15MP) and A77 (24MP) but they feature the same exact sensor size (APS-C).
President Biden pushes bill mandating TikTok sale or banThe GX-20 was unveiled 4 years before the A77 which is a fairly large difference as far as camera technology is concerned. Each of the cameras offer the identical body type (Mid-size SLR).
Before delving in to a comprehensive comparison, below is a short highlight of how the GX-20 matches up vs the A77 in the way of portability, imaging, features and an overall mark.
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Below is a sample of the gallery pics for Samsung GX-20 & Sony SLT-A77. The full galleries are available at Samsung GX-20 Gallery & Sony A77 Gallery.
Reasons to pick Samsung GX-20 over the Sony A77
| GX-20 | A77 |
|---|
Reasons to pick Sony A77 over the Samsung GX-20
| A77 | GX-20 | |||
|---|---|---|---|---|
| Launched | October 2011 |  | January 2008 | Newer by 45 months |
| Display type | Fully Articulated |  | Fixed | Fully Articulating display |
| Display sizing | 3" |  | 2.7" | Larger display (+0.3") |
| Display resolution | 921k |  | 230k | Crisper display (+691k dot) |
| Selfie screen |  | Easy selfies |
Common features in the Samsung GX-20 and Sony A77
| GX-20 | A77 | |||
|---|---|---|---|---|
| Focus manually |  | Very precise focus | ||
| Touch friendly display |  | Lacking Touch friendly display |
Samsung GX-20 vs Sony A77 Physical Comparison
When you are planning to travel with your camera regularly, you will need to think about its weight and measurements. The Samsung GX-20 enjoys outer measurements of 142mm x 101mm x 72mm (5.6" x 4.0" x 2.8") having a weight of 800 grams (1.76 lbs) and the Sony A77 has proportions of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") along with a weight of 732 grams (1.61 lbs).
Compare the Samsung GX-20 vs Sony A77 in our newest Camera & Lens Size Comparison Tool.
Do not forget, the weight of an ILC will change based on the lens you have chosen at that moment. Here is the front view sizing comparison of the GX-20 against the A77.
Taking into consideration dimensions and weight, the portability grade of the GX-20 and A77 is 58 and 59 respectively.
Samsung GX-20 vs Sony A77 Sensor Comparison
Sometimes, its difficult to visualise the contrast in sensor dimensions only by looking through a spec sheet. The image here may give you a greater sense of the sensor measurements in the GX-20 and A77.
As you can see, the 2 cameras enjoy the same exact sensor sizing but not the same megapixels. You can expect to see the Sony A77 to result in more detail having an extra 9 Megapixels. Greater resolution can also make it easier to crop photos far more aggressively. The more aged GX-20 will be disadvantaged with regard to sensor tech.
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Samsung GX-20 vs Sony A77 Specifications
| Samsung GX-20 | Sony SLT-A77 | |
|---|---|---|
| General Information | ||
| Brand | Samsung | Sony |
| Model type | Samsung GX-20 | Sony SLT-A77 |
| Category | Advanced DSLR | Advanced DSLR |
| Announced | 2008-01-24 | 2011-10-25 |
| Body design | Mid-size SLR | Mid-size SLR |
| Sensor Information | ||
| Powered by | - | Bionz |
| Sensor type | CMOS | CMOS |
| Sensor size | APS-C | APS-C |
| Sensor dimensions | 23.4 x 15.6mm | 23.5 x 15.6mm |
| Sensor surface area | 365.0mm² | 366.6mm² |
| Sensor resolution | 15 megapixel | 24 megapixel |
| Anti alias filter | ||
| Aspect ratio | - | 3:2 and 16:9 |
| Peak resolution | 4688 x 3120 | 6000 x 4000 |
| Highest native ISO | 3200 | 16000 |
| Highest enhanced ISO | 6400 | 25600 |
| Min native ISO | 100 | 50 |
| RAW images | ||
| Autofocusing | ||
| Focus manually | ||
| Touch focus | ||
| Continuous AF | ||
| AF single | ||
| Tracking AF | ||
| AF selectice | ||
| AF center weighted | ||
| AF multi area | ||
| Live view AF | ||
| Face detect focusing | ||
| Contract detect focusing | ||
| Phase detect focusing | ||
| Total focus points | 11 | 19 |
| Cross type focus points | - | 11 |
| Lens | ||
| Lens support | Pentax KAF2 | Sony/Minolta Alpha |
| Number of lenses | 151 | 143 |
| Crop factor | 1.5 | 1.5 |
| Screen | ||
| Range of display | Fixed Type | Fully Articulated |
| Display size | 2.7 inch | 3 inch |
| Resolution of display | 230k dot | 921k dot |
| Selfie friendly | ||
| Liveview | ||
| Touch screen | ||
| Viewfinder Information | ||
| Viewfinder | Optical (pentaprism) | Electronic |
| Viewfinder resolution | - | 2,359k dot |
| Viewfinder coverage | 95 percent | 100 percent |
| Viewfinder magnification | 0.64x | 0.73x |
| Features | ||
| Minimum shutter speed | 30 secs | 30 secs |
| Fastest shutter speed | 1/4000 secs | 1/8000 secs |
| Continuous shutter speed | 3.0fps | 12.0fps |
| Shutter priority | ||
| Aperture priority | ||
| Expose Manually | ||
| Exposure compensation | Yes | Yes |
| Change WB | ||
| Image stabilization | ||
| Built-in flash | ||
| Flash distance | 13.00 m (at ISO 100) | 12.00 m |
| Flash modes | Auto, Red-Eye, Slow, Red-Eye Slow, Rear curtain, wireless | Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless |
| External flash | ||
| AEB | ||
| White balance bracketing | ||
| Fastest flash sync | 1/180 secs | 1/250 secs |
| Exposure | ||
| Multisegment exposure | ||
| Average exposure | ||
| Spot exposure | ||
| Partial exposure | ||
| AF area exposure | ||
| Center weighted exposure | ||
| Video features | ||
| Video resolutions | - | 1920 x 1080 (60, 24 fps), 1440 x 1080 (30fps), 640 x 424 (29.97 fps) |
| Highest video resolution | None | 1920x1080 |
| Video format | - | MPEG-4, AVCHD, H.264 |
| Mic input | ||
| Headphone input | ||
| 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 | ||
| Environment seal | ||
| Water proofing | ||
| Dust proofing | ||
| Shock proofing | ||
| Crush proofing | ||
| Freeze proofing | ||
| Weight | 800 grams (1.76 lb) | 732 grams (1.61 lb) |
| Dimensions | 142 x 101 x 72mm (5.6" x 4.0" x 2.8") | 143 x 104 x 81mm (5.6" x 4.1" x 3.2") |
| DXO scores | ||
| DXO Overall rating | 68 | 78 |
| DXO Color Depth rating | 23.1 | 24.0 |
| DXO Dynamic range rating | 11.2 | 13.2 |
| DXO Low light rating | 714 | 801 |
| Other | ||
| Battery life | - | 470 pictures |
| Battery format | - | Battery Pack |
| Battery ID | - | NP-FM500H |
| Self timer | Yes (2 or 10 sec) | Yes (2 or 10 sec) |
| Time lapse feature | ||
| Type of storage | SD/MMC/SDHC card | SD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo |
| Storage slots | Single | Single |
| Retail pricing | $850 | $900 |