Camera Rocket Review Our evaluation of A7S vs DMC-G6

Image Quality

RAW image quality independent of lens

DxOMark Low light, DxOMark Color depth and DxOMark Dynamic range


How fast and easily does the camera nail focus

Focus lag and focus points


How much delay is there between you and your photo?

Focus lag, continuous shooting and Startup delay


What do the experts think?

Reviews from, and

Camera Rocket Score

Image Quality, Focusing, Responsiveness and Reviews

Sony A7S 

Camera Rocket recommends the Sony A7S  based on its image quality and focusing.

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Benchmarks Real world tests of Sony A7S vs Lumix DMC-G6

Low light image quality Highest ISO setting that still achieves great image quality

Sony A7S
2,993 ISO
Lumix DMC-G6
639 ISO

Focus lag Delay between fully pressing shutter to image capture

Sony A7S
178 ms
Lumix DMC-G6
216 ms

Startup delay Delay from power on to first photo

Sony A7S
2,000 ms
Lumix DMC-G6
900 ms

Continuous shooting Delay between fully pressing shutter to image capture

Sony A7S
5 fps
Lumix DMC-G6
7 fps

Battery life How many photos per battery charge (CIPA)

Sony A7S
320 photos
Lumix DMC-G6
340 photos

Color depth The number of variations of color the camera can capture

Sony A7S
23.6 bits
Lumix DMC-G6
21.3 bits

Features Key features of the Sony A7S  vs Lumix DMC-G6 

Megapixels Maximum resolution images are captured at

Sony A7S
12.4 MP
Lumix DMC-G6
15.9 MP

Focus points How many different points the camera can focus on

Screen size Larger screens make it easier to preview and review photos

Viewfinder size Large viewfinders are brighter and more comfortable to use

Sony A7S
Lumix DMC-G6

Pixel size How much area of the sensor is dedicated to each pixel

Sony A7S
69.1 microns
Lumix DMC-G6
14.1 microns

Specifications Full list of technical specs


Sony A7S  vs
Lumix DMC-G6 
Type Exmor R CMOS CMOS
Megapixels 12.4 MP 15.9 MP
Resolution 4064 x 3048 4608 x 3456
Size Full frame Four Thirds
Area 35.8 x 23.9 mm 17.3 x 13 mm
Crop factor 1.0x 2.1x
Pixel size 69.1 microns 14.1 microns
Light sensitivity 100 ISO to 409,600 ISO 160 ISO to 25,600 ISO
Self cleaning sensor No Yes

focus system

Type Contrast detection Contrast detection
Focus points 25 23
Supports continuous Yes Yes


Viewfinder mirror None None
Viewfinder Yes Yes
Type Electronic Electronic
Coverage 100% 100%
Magnification 0.71x 1.4x
Viewfinder size 0.71x 0.67x
Display type TFT LCD
Display resolution 2,359 k dots 1,036 k dots


Max continuous shooting 5 fps 7 fps
Battery life 320 340
Continuous shooting
7 fps
5 fps
Focus lag 178 ms 216 ms
Startup delay 2,000 ms 900 ms


Sony A7S  vs
Lumix DMC-G6 
Video 1920 x 1080 @ 60 fps 1920 x 1080 @ 60 fps (AVCHD, MPEG-4)
Shoots video in 24p Yes Yes
Shoots high speed video No No
External mic jack 3.5mm 3.5mm
Autofocus while shooting video Manual Contrast detection
Autofocus type N/A Contrast detection
Autofocus supports continuous N/A Yes


Size 3" 3"
Resolution 921 k dots 1,036 k dots
Has a touch screen No Yes
Has a flip out screen Yes Yes
Supports live view Yes Yes


Min 30 s 60 s
Max 1/8000 s 1/4000 s

form factor

Size 126.9 x 94.4 x 48.2 mm 122 x 85 x 71 mm
Thickness 48.2 mm 71 mm
Weight 489 g 390 g
Is weather sealed Yes No


Includes a GPS No No
Supports HDR Yes Yes
WiFi None Yes
Automatic panorama Yes Yes
Create realistic 3D images No No
Image stabilization
Sony A7S
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Panasonic Lumix DMC-G6
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