Size and weight is a big decision factor when you are trying to find the ideal camera for your needs.
In this section, We are going to illustrate Sony A7S and Sigma DP2 Quattro side-by-side from the front, back and top in their relative dimensions. Sony A7S has external dimensions of 127 x 94 x 48 mm (5 x 3.7 x 1.89″) and weighs 489 g (1.08 lb / 17.25 oz) (including batteries). Sigma DP2 Quattro has external dimensions of 161 x 67 x 82 mm (6.34 x 2.64 x 3.23″) and weighs 395 g (0.87 lb / 13.93 oz) (including batteries).
Below you can see the front view size comparison of Sony A7S and Sigma DP2 Quattro. Sony A7S is 34mm narrower and 34mm thinner than Sigma DP2 Quattro but it is also 27mm taller. As you can tell, actually this is not a fair size comparison since Sigma DP2 Quattro has a built-in lens but Sony A7S doesn't. Once you put a lens on A7S, its thickness will increase significantly.
![Sony A7S vs Sigma DP2 Quattro Camera Size Comparison - Front View]()
Comparison image of Sony A7S and Sigma DP2 Quattro Size, Weight and External Dimensions - Front View
Here is the back view size comparison of Sony A7S and Sigma DP2 Quattro.
![Sony A7S vs Sigma DP2 Quattro Camera Size Comparison - Back View]()
Comparison image of Sony A7S and Sigma DP2 Quattro Size and Weight - Back View
Now lets look at the top view comparison of Sony A7S and Sigma DP2 Quattro.
![Sony A7S vs Sigma DP2 Quattro Camera Size Comparison - Top View]()
Top View Comparison image of Sony A7S and Sigma DP2 Quattro Size
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Sigma DP2 Quattro is significantly lighter (94g ) than the Sony A7S which may become a big advantage especially on long walking trips.
Again, this comparison may not be very useful in real life as we are comparing the weight of a camera with a built-in lens to the body-only weight of an interchangeable lens camera. Once you put a lens on A7S, the total kit will weigh much higher.
Weather Sealing
With its weather sealed body, we believe that A7S has a big advantage over DP2 Quattro which doesn't provide any kind of environmental sealing.
LCD Screen Size and Features
Sony A7S and Sigma DP2 Quattro's LCD screens has the same diagonal size of 3.
On the other hand, Sony A7S features a
Tilting screen where you can change the angle of the screen to make it easier to shoot from waist or over the head levels whereas the Sigma DP2 Quattro has a fixed type screen which provides less flexibility in shooting positions compared to A7S.
Sony A7S has a 12.0MP Full frame (35.8 x 23.9 mm ) sized CMOS sensor and features Bionz X processor. On the other hand, Sigma DP2 Quattro has a 20.0MP APS-C (23.5 x 15.7 mm ) sized CMOS (Foveon X3) sensor and features TRUE III engine processor.
Sigma DP2 Quattro's sensor provides 8MP more than Sony A7S's sensor, which gives a significant advantage in real life. You can print your images larger or crop more freely.
On the other hand, please keep in mind that Max sensor resolution is not the only determinant of resolving power. Factors such as the optical elements, low pass filter, pixel size and sensor technology also affects the final resolution of the captured image.
Below you can see the A7S and DP2 Quattro sensor size comparison.
![Sony A7S vs Sigma DP2 Quattro Sensor Size Comparison]()
Sensor Size and Resolution Comparison image of Sony A7S and Sigma DP2 Quattro Cameras
As seen above, Sony A7S has a 2.3x Larger sensor area than Sigma DP2 Quattro. Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in same focal length and aperture.
In this section, we rank and compare Sony A7S and Sigma DP2 Quattro for five different photography types in order to make your decision process easier in case you are specifically interested in one or more of these areas.
Sony A7S for Portrait Photography
Sigma DP2 Quattro for Portrait Photography
Large Full frame (35.8 x 23.9 mm) sensor
Electronic Built-in Viewfinder
Good Ergonomics&Handling
Average Resolution Sensor: 12.0MP
No Image Stabilization
Read the details
Large APS-C (23.5 x 15.7 mm) sensor
Very High Resolution Sensor: 20.0MP
External Flash Shoe
No Image Stabilization
No Built-in Viewfinder
Not so good Ergonomics&Handling
Read the details
Sony A7S for Street Photography
Sigma DP2 Quattro for Street Photography
Large Full frame (35.8 x 23.9 mm) sensor
Electronic Built-in Viewfinder
Live-view
Face-Detection Focusing
Tilting LCD Screen
Medium sized Body
No Image Stabilization
Read the details
Large APS-C (23.5 x 15.7 mm) sensor
Small Body
Live-view
Face-Detection Focusing
Fast Lens at Wide: f2.80
No Image Stabilization
No Built-in Viewfinder
45 mm - Poor Wide Angle Coverage
Read the details
Sony A7S for Sports Photography
Sigma DP2 Quattro for Sports Photography
Electronic Built-in Viewfinder
Good Ergonomics&Handling
Environmental Sealings
Fast Max shutter speed: 1/8000s
25 Focus Points
Good Low Light ISO
Wireless Connection
Average Continuous Shooting: 5.0fps
No Image Stabilization
Read the details
External Flash Shoe
Average Max shutter speed: 1/2000s
No Image Stabilization
No Built-in Viewfinder
Not so good Ergonomics&Handling
Slow Continuous Shooting: 3.0fps
Environmental Sealings
9 Focus Points
45 mm Tele Lens
Read the details
Sony A7S for Daily Photography
Sigma DP2 Quattro for Daily Photography
Large Full frame (35.8 x 23.9 mm) sensor
Environmental Sealings
Medium size Body
489g
Body Thickness 48mm
Read the details
Large APS-C (23.5 x 15.7 mm) sensor
Compact Body
395g
Body Thickness 82mm
Read the details
Sony A7S for Landscape Photography
Sigma DP2 Quattro for Landscape Photography
Large Full frame (35.8 x 23.9 mm) sensor
Environmental Sealings
Live-view
Average Resolution Sensor: 12.0MP
Read the details
Large APS-C (23.5 x 15.7 mm) sensor
Very High Resolution Sensor: 20.0MP
No Environmental Sealings
45 mm - Poor Wide Angle Coverage
Read the details
You may have already made your decision about which camera suits better for your needs and your budget so far but in case you wonder how we rated Sony A7S and Sigma DP2 Quattro, below you can find their scores in five different aspects.
Our Decision Algorithm dynamically scores cameras using 63 different specs, current price and DxO Mark scores (where possible) in order to make a more objective and consistent comparison.
Here is a summary of how Sony A7S and Sigma DP2 Quattro scores compare:
Sony A7S
Ranked
#39 out of 86 in SLR-style mirrorless cameras
Ranked
#71 out of 1220 in all Cameras
Sigma DP2 Quattro
Ranked
#45 out of 61 in Large sensor compact cameras
Ranked
#463 out of 1220 in all Cameras
Sony A7S is the clear winner of this comparison. It has a higher Overall Score and beats Sigma DP2 Quattro in all criteria. It has better general image quality, more features, more compact body and offers more value for the money
| General |
Sony Alpha A7S |
Sigma DP2 Quattro |
| Brand |
Sony |
Sigma |
| Announced |
2014-04-06 |
2014-02-13 |
| Body Type |
SLR-style mirrorless |
Large sensor compact |
Sensor |
|
|
| Type |
CMOS |
CMOS (Foveon X3) |
| Size |
Full frame |
APS-C |
| Dimensions |
35.8 x 23.9 mm |
23.5 x 15.7 mm |
| Area |
855.62mm2 |
368.95mm2 |
| Megapixels |
12 megapixels |
20 megapixels |
| Max Resolution |
4240 x 2832 |
5424 x 3616 |
| Max Native Light sensitivity |
409,600 ISO |
6,400 ISO |
| Min Native Light sensitivity |
100 ISO |
100 ISO |
| RAW Support |
|
|
Autofocus |
|
|
| AF Touch |
|
|
| AF Continuous |
|
|
| AF Single |
|
|
| AF Tracking |
|
|
| AF Selective |
|
|
| AF Center |
|
|
| AF Multi Area |
|
|
| AF Live View |
|
|
| AF Face Detection |
|
|
| AF Contrast Detection |
|
|
| AF Phase Detection |
|
|
| Number of Focus Points |
25 |
9 |
Lens |
|
|
| Manual Focus |
|
|
| Lens Mount |
Sony E |
fixed lens |
| Lens Focal Range |
no lens |
45 mm (1×) |
| Max Aperture |
no lens |
F2.8 |
Screen |
|
|
| Type |
Tilting |
Fixed type |
| Size |
3 |
3" |
| Resolution |
1,230k dots |
920k dots |
| Touch Screen |
|
|
Viewfinder |
|
|
| Viewfinder |
Electronic |
None |
| Viewfinder Resolution |
2,359k dots |
no electronic viewfinder |
| Viewfinder Coverage |
100% |
n/a |
| Viewfinder Magnification |
0.71x |
n/a |
Photography Features |
|
|
| Max Mechanical Shutter |
1/8000s |
1/2000s |
| Shutter Priority |
|
|
| Aperture Priority |
|
|
| Manual Exposure Mode |
|
|
| Custom White Balance |
|
|
| Image Stabilization |
No |
No |
| Built-in Flash |
|
|
| External Flash |
|
|
| Continuous Shooting |
5.0 fps |
3.0 fps |
| Multi-Segment |
|
|
| Average |
|
|
| Spot |
|
|
| Partial |
|
|
| AF-Area |
|
|
| Center Weighted |
|
|
| AE Bracketing |
|
|
| WB Bracketing |
|
|
Video Features |
|
|
| Max Video Resolution |
3840 x 2160 |
None |
| Video Formats |
MPEG-4, AVCHD, XAVC |
n/a |
| Microphone Port |
|
|
| Headphone Port |
|
|
Connectivity |
|
|
| Wireless Connectivity |
Built-In |
None |
| HDMI |
|
|
Physical |
|
|
| Environmental Sealing |
|
|
| Weight |
489g |
395g |
| Dimensions |
127 x 94 x 48mm |
161 x 67 x 82mm |
| Battery Life |
360 shots |
n/a |
Other Features |
|
|
| Timelapse Recording |
With Downloadable App |
|
| GPS |
None |
None |
DxO Sensor Scores |
|
|
| DxO Overall Score |
87 |
not tested |
| DxO Color Depth |
23.9 |
not tested |
| DxO Dynamic Range |
13.2 |
not tested |
| DxO Low Light ISO |
3702 |
not tested |
|
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