Camera Rocket Review Our evaluation of DMC-GX1 vs DMC-GF1

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 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, techradar.com, photographyblog.com, dpreview.com and 1 more

Camera Rocket Score

Image Quality, Focusing, Responsiveness and Reviews

Winner
Panasonic Lumix DMC-GX1 

Camera Rocket recommends the Panasonic Lumix DMC-GX1  based on its image quality, focusing and responsiveness.

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Benchmarks Real world tests of Lumix DMC-GX1 vs DMC-GF1

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

Lumix DMC-GX1
703 ISO
Lumix DMC-GF1
513 ISO

Resolution Results from photos of standard resolution charts

Lumix DMC-GX1
2,500 LPH
Lumix DMC-GF1
2,100 LPH

Focus lag Delay between fully pressing shutter to image capture

Shutter lag Delay to take a photo when prefocused

Startup delay Delay from power on to first photo

Lumix DMC-GX1
1,400 ms
Lumix DMC-GF1
1,400 ms

Continuous shooting Delay between fully pressing shutter to image capture

Features Key features of the Lumix DMC-GX1  vs DMC-GF1 

Megapixels Maximum resolution images are captured at

Max ISO Maximum light sensitivity of the sensor

Lumix DMC-GX1
12,800 ISO
Lumix DMC-GF1
3,200 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-GX1
14.1 microns
Lumix DMC-GF1
20.3 microns

Reviews Word on the street

Lumix DMC-GX1  vs DMC-GF1 

9.0
9.0
We'd still just give the edge to the G3 thanks to its built-in EVF and rotating LCD screen, and the Sony NEX-7 that we're also reviewing soon is definitely a very big rival, but if you want virtually all of Panasonic's compact system camera technologies in a small, customisable and intuitive package, the new Lumix DMC-GX1 fits the bill almost perfectly.
Lumix DMC-GX1

9.0
10.0
Shooting log-exposure shots in low light at high IS settings is usually a sure recipe for chronic image noise, and some previous 4/3 cameras have stumbled at this particular hurdle, but the GF1 performed much better than I expected, producing virtually noise-free images at 800 ISO, which is what I would expect from a good APS-C digital SLR.
Lumix DMC-GF1

7.7
8.0
I tested the GF1 with both the 20mm and 14-45mm lenses, but unfortunately was unable to get an optional viewfinder for evaluation; the viewfinder connects above the LCD and sits in the hot shoe, which precludes using a hot-shoe flash with it.
Lumix DMC-GF1

Overall

8.4 Out of 10
9.0 Out of 10

Specifications Full list of technical specs

sensor

Lumix DMC-GX1  vs
DMC-GF1 
Type LiveMOS CMOS
Megapixels 16 MP 12 MP
Resolution 4616 x 3464 4000 x 3000
Size Four Thirds Four Thirds
Area 17.3 x 13 mm 18 x 13.5 mm
Crop factor 2.1x 2.0x
Pixel size 14.1 microns 20.3 microns
Light sensitivity 160 ISO to 12,800 ISO 100 ISO to 3,200 ISO
Codecs
RAW
JPEG
Self cleaning sensor Yes Yes
Tested vertical resolution 2,500 LPH 2,100 LPH
Tested horizontal resolution 2,500 LPH 2,100 LPH

focus system

Type Contrast detection Contrast detection
Focus points 23 23
Supports continuous No No

shutter

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

form factor

Size 116 x 68 x 39 mm 119 x 71 x 36.3 mm
Thickness 39 mm 36.3 mm
Weight 318 g 330 g
Is weather sealed No No

features

Is a smart camera No No
Includes a GPS No No
Supports HDR Yes No
Automatic panorama No No
Create realistic 3D images Yes No
Image stabilization

video

Lumix DMC-GX1  vs
DMC-GF1 
Video 1920 x 1080 @ 60 fps 1280 x 720 @ 30 fps
Shoots video in 24p No No
Shoots high speed video No No
External mic jack None None
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 460 k dots
Has a touch screen Yes No
Has a flip out screen No No
Supports live view Yes Yes

viewfinder

Viewfinder mirror None None
Viewfinder No No
Type N/A N/A
Coverage N/A N/A
Magnification N/A N/A
Display type N/A N/A
Display resolution N/A N/A

performance

Max continuous shooting 4.2 fps 3 fps
Battery life 310 400
Continuous shooting
4.2 fps, JPEG
3 fps, JPEG
Focus lag 259 ms 409 ms
Shutter lag 72 ms 72 ms
Startup delay 1,400 ms 1,400 ms
Panasonic Lumix DMC-GX1
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Panasonic Lumix DMC-GF1
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