Camera Rocket Review Our evaluation of DMC-GH2 vs 650D

Image Quality

RAW image quality independent of lens

DxOMark Low light, DxOMark Color depth and DxOMark Dynamic range

Focusing

How fast and easily does the camera nail focus

Focus lag, cross type focus points and focus points

Responsiveness

How much delay is there between you and your photo?

Focus lag, continuous shooting and Startup delay

Reviews

What do the experts think?

Reviews from trustedreviews.com, photographyblog.com, dpreview.com and reviews.cnet.com

No winner declared

Too close to call

Benchmarks Real world tests of Lumix DMC-GH2 vs EOS 650D

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

Lumix DMC-GH2
655 ISO
EOS 650D
722 ISO

Resolution Results from photos of standard resolution charts

Lumix DMC-GH2
2,800 LPH
EOS 650D
2,600 LPH

Focus lag Delay between fully pressing shutter to image capture

Lumix DMC-GH2
273 ms
EOS 650D
269 ms

Shutter lag Delay to take a photo when prefocused

EOS 650D
74 ms

Startup delay Delay from power on to first photo

Lumix DMC-GH2
1,100 ms
EOS 650D
700 ms

Continuous shooting Delay between fully pressing shutter to image capture

EOS 650D
5 fps

Features Key features of the Lumix DMC-GH2  vs EOS 650D 

Megapixels Maximum resolution images are captured at

Lumix DMC-GH2
15.9 MP
EOS 650D
17.9 MP

Max ISO Maximum light sensitivity of the sensor

Lumix DMC-GH2
12,800 ISO
EOS 650D
25,600 ISO

Focus points How many different points the camera can focus on

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

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

Lumix DMC-GH2
14.1 microns
EOS 650D
18.5 microns

Reviews Word on the street

Lumix DMC-GH2  vs EOS 650D 

7.9
7.7
The sensor's full pixel count of 18MP is never used (output size tops out at 16MP in 4:3 mode), but viewed critically, image quality is excellent in all of the available aspect ratio modes.
Lumix DMC-GH2

10.0
9.0
ISO 6400 is best reserved for resizing and smaller prints, while the top speed of 12800 is only for emergency use, but overall the GH2 offers the best image quality of any Micro Four Thirds camera to date.
Lumix DMC-GH2

9.0
8.0
Like the latest crop of SLRs, the Panasonic aims to ensnare the amateur 'movie' maker here via Full HD movie capture with stereo sound plus its newly added 'Cinema' Film mode promising richer tonal gradation.
Lumix DMC-GH2

8.1
7.8
I also got a chance to shoot with Panasonic's Micro Four Thirds 3D lens, which consists of dual fixed-focus f12 12mm lenses (note that the 35mm angle-of-view equivalent is about 57mm because each lens covers less than half of the sensor).
Lumix DMC-GH2

Overall

8.8 Out of 10
8.4 Out of 10

Specifications Full list of technical specs

sensor

Lumix DMC-GH2  vs
EOS 650D 
Type CMOS CMOS
Megapixels 15.9 MP 17.9 MP
Resolution 4608 x 3456 5184 x 3456
Size Four Thirds APS-C
Area 17.3 x 13 mm 22.3 x 14.9 mm
Crop factor 2.1x 1.6x
Pixel size 14.1 microns 18.5 microns
Light sensitivity 100 ISO to 6,400 ISO 100 ISO to 12,800 ISO
Light sensitivity (Boost) 640 ISO to 12,800 ISO 12,800 ISO to 25,600 ISO
Codecs
RAW
JPEG
Self cleaning sensor Yes Yes
Tested vertical resolution 2,800 LPH 2,600 LPH
Tested horizontal resolution 2,800 LPH 2,600 LPH

focus system

Type Contrast detection Phase detection
Focus points 23 9
Cross type focus points 0 9
Supports continuous No Yes

shutter

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

performance

Max continuous shooting 5 fps 5 fps
Battery life 330 440
Continuous shooting
5 fps @ 5184 x 3456, JPEG, 22 shots
5 fps @ 5184 x 3456, RAW, 6 shots
5 fps, JPEG
Focus lag 273 ms 269 ms
Shutter lag 68 ms 74 ms
Startup delay 1,100 ms 700 ms

video

Lumix DMC-GH2  vs
EOS 650D 
Video 1920 x 1080 @ 24 fps 1920 x 1080 @ 30 fps (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 Contrast detection Contrast detection
Autofocus type Contrast detection Contrast detection

display

Type LCD LCD
Size 3" 3"
Resolution 460 k dots 1,040 k dots
Has a touch screen Yes Yes
Has a flip out screen Yes Yes
Supports live view Yes Yes

viewfinder

Viewfinder mirror None Opaque
Viewfinder Yes Yes
Type Electronic Pentamirror

form factor

Size 124 x 90 x 76 mm 133.1 x 99.8 x 78.8 mm
Thickness 76 mm 78.8 mm
Weight 444 g 575 g
Is weather sealed No No

features

Includes a GPS No No
Supports HDR No Yes
Automatic panorama No No
Create realistic 3D images Yes No
Image stabilization
Panasonic Lumix DMC-GH2
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Canon EOS 650D
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