Sigma SD1 vs Sony A77
77 Imaging
55 Features
43 Overall
50
59 Imaging
64 Features
83 Overall
71
Sigma SD1 vs Sony A77 Key Specs
(Full Review)
- 15MP - APS-C Sensor
- 3" Fixed Display
- ISO 0 - 0
- No Video
- Sigma SA Mount
- n/ag - 146 x 113 x 80mm
- Announced September 2010
- Renewed by Sigma SD1 Merrill
(Full Review)
- 24MP - APS-C Sensor
- 3" Fully Articulated Display
- ISO 50 - 16000 (Boost to 25600)
- Sensor based Image Stabilization
- 1/8000s Max Shutter
- 1920 x 1080 video
- Sony/Minolta Alpha Mount
- 732g - 143 x 104 x 81mm
- Revealed October 2011
- Succeeded the Sony A700
- Updated by Sony A77 II
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Lets take a closer look at the Sigma SD1 vs Sony A77, both Advanced DSLR digital cameras by competitors Sigma and Sony. There exists a big gap between the sensor resolutions of the SD1 (15MP) and A77 (24MP) but both cameras provide the same sensor sizes (APS-C).
Japan-exclusive Leica Leitz Phone 3 features big sensor and new modesThe SD1 was brought out 13 months prior to the A77 making them a generation apart from one another. Both the cameras have the same body design (Mid-size SLR).
Before delving straight to a detailed comparison, here is a concise view of how the SD1 matches up vs the A77 with regard to portability, imaging, features and an overall rating.
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The following is a sample of the gallery pics for Sigma SD1 and Sony SLT-A77. The entire galleries are available at Sigma SD1 Gallery and Sony A77 Gallery.
Reasons to pick Sigma SD1 over the Sony A77
| SD1 | A77 |
|---|
Reasons to pick Sony A77 over the Sigma SD1
| A77 | SD1 | |||
|---|---|---|---|---|
| Revealed | October 2011 |  | September 2010 | Fresher by 13 months |
| Display type | Fully Articulated |  | Fixed | Fully Articulating display |
| Display resolution | 921k |  | 460k | Sharper display (+461k dot) |
| Selfie screen |  | Take selfies |
Common features in the Sigma SD1 and Sony A77
| SD1 | A77 | |||
|---|---|---|---|---|
| Manually focus |  | More exact focusing | ||
| Display dimensions | 3" |  | 3" | Equal display dimensions |
| Touch friendly display |  | Lack of Touch friendly display |
Sigma SD1 vs Sony A77 Physical Comparison
In case you're aiming to carry your camera regularly, you will need to think about its weight and volume. The Sigma SD1 provides external dimensions of 146mm x 113mm x 80mm (5.7" x 4.4" x 3.1") accompanied by a weight of n/a grams (0.00 lbs) and the Sony A77 has sizing of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") along with a weight of 732 grams (1.61 lbs).
Take a look at the Sigma SD1 vs Sony A77 in the all new Camera with Lens Size Comparison Tool.
Remember that, the weight of an Interchangeable Lens Camera will differ depending on the lens you select at that moment. Underneath is a front view dimensions comparison of the SD1 vs the A77.
Taking into account dimensions and weight, the portability grade of the SD1 and A77 is 77 and 59 respectively.
Sigma SD1 vs Sony A77 Sensor Comparison
Typically, it can be hard to imagine the gap between sensor sizing simply by looking at specs. The photograph here will offer you a more clear sense of the sensor sizes in the SD1 and A77.
All in all, the 2 cameras provide the same sensor dimensions but different resolution. You should expect to see the Sony A77 to give more detail having its extra 9 Megapixels. Greater resolution can also let you crop photos more aggressively. The older SD1 is going to be behind in sensor tech.
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Sigma SD1 vs Sony A77 Specifications
| Sigma SD1 | Sony SLT-A77 | |
|---|---|---|
| General Information | ||
| Brand | Sigma | Sony |
| Model | Sigma SD1 | Sony SLT-A77 |
| Class | Advanced DSLR | Advanced DSLR |
| Announced | 2010-09-21 | 2011-10-25 |
| Body design | Mid-size SLR | Mid-size SLR |
| Sensor Information | ||
| Chip | Dual True II | Bionz |
| Sensor type | CMOS (Foveon X3) | CMOS |
| Sensor size | APS-C | APS-C |
| Sensor dimensions | 24 x 16mm | 23.5 x 15.6mm |
| Sensor area | 384.0mm² | 366.6mm² |
| Sensor resolution | 15 megapixel | 24 megapixel |
| Anti aliasing filter | ||
| Aspect ratio | - | 3:2 and 16:9 |
| Max resolution | 4800 x 3200 | 6000 x 4000 |
| Max native ISO | - | 16000 |
| Max enhanced ISO | - | 25600 |
| Minimum native ISO | - | 50 |
| RAW data | ||
| Autofocusing | ||
| Manual focus | ||
| Autofocus touch | ||
| Autofocus continuous | ||
| Single autofocus | ||
| Tracking autofocus | ||
| Autofocus selectice | ||
| Center weighted autofocus | ||
| Multi area autofocus | ||
| Live view autofocus | ||
| Face detect autofocus | ||
| Contract detect autofocus | ||
| Phase detect autofocus | ||
| Number of focus points | 11 | 19 |
| Cross focus points | 2 | 11 |
| Lens | ||
| Lens mounting type | Sigma SA | Sony/Minolta Alpha |
| Amount of lenses | 76 | 143 |
| Focal length multiplier | 1.5 | 1.5 |
| Screen | ||
| Range of display | Fixed Type | Fully Articulated |
| Display sizing | 3 inch | 3 inch |
| Display resolution | 460k dot | 921k dot |
| Selfie friendly | ||
| Liveview | ||
| Touch functionality | ||
| Viewfinder Information | ||
| Viewfinder | Optical (pentaprism) | Electronic |
| Viewfinder resolution | - | 2,359k dot |
| Viewfinder coverage | 96 percent | 100 percent |
| Viewfinder magnification | 0.64x | 0.73x |
| Features | ||
| Minimum shutter speed | 15 seconds | 30 seconds |
| Fastest shutter speed | 1/2000 seconds | 1/8000 seconds |
| Continuous shutter speed | 5.0 frames/s | 12.0 frames/s |
| Shutter priority | ||
| Aperture priority | ||
| Manual exposure | ||
| Exposure compensation | Yes | Yes |
| Change white balance | ||
| Image stabilization | ||
| Built-in flash | ||
| Flash range | - | 12.00 m |
| Flash settings | - | Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless |
| Hot shoe | ||
| AEB | ||
| WB bracketing | ||
| Fastest flash sync | - | 1/250 seconds |
| Exposure | ||
| Multisegment | ||
| Average | ||
| Spot | ||
| Partial | ||
| AF area | ||
| Center weighted | ||
| Video features | ||
| Video resolutions | - | 1920 x 1080 (60, 24 fps), 1440 x 1080 (30fps), 640 x 424 (29.97 fps) |
| Max 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 | ||
| Environmental seal | ||
| Water proof | ||
| Dust proof | ||
| Shock proof | ||
| Crush proof | ||
| Freeze proof | ||
| Weight | - | 732 grams (1.61 pounds) |
| Physical dimensions | 146 x 113 x 80mm (5.7" x 4.4" x 3.1") | 143 x 104 x 81mm (5.6" x 4.1" x 3.2") |
| DXO scores | ||
| DXO Overall score | not tested | 78 |
| DXO Color Depth score | not tested | 24.0 |
| DXO Dynamic range score | not tested | 13.2 |
| DXO Low light score | not tested | 801 |
| Other | ||
| Battery life | - | 470 photographs |
| Type of battery | - | Battery Pack |
| Battery model | - | NP-FM500H |
| Self timer | Yes | Yes (2 or 10 sec) |
| Time lapse recording | ||
| Type of storage | Compact Flash (Type I, UDMA compatible) | SD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo |
| Storage slots | One | One |
| Cost at release | $2,339 | $900 |
