Camera Rocket Review Our evaluation of DMC-GF3 vs J1

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 photographyblog.com, dpreview.com and reviews.cnet.com

Camera Rocket Score

Image Quality, Focusing, Responsiveness and Reviews

Winner
Nikon 1 J1 

Camera Rocket recommends the Nikon 1 J1  based on its focusing and responsiveness.

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Benchmarks Real world tests of Lumix DMC-GF3 vs Nikon 1 J1

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

Lumix DMC-GF3
459 ISO
Nikon 1 J1
372 ISO

Resolution Results from photos of standard resolution charts

Lumix DMC-GF3
2,400 LPH
Nikon 1 J1
2,600 LPH

Focus lag Delay between fully pressing shutter to image capture

Lumix DMC-GF3
312 ms
Nikon 1 J1
94 ms

Shutter lag Delay to take a photo when prefocused

Startup delay Delay from power on to first photo

Lumix DMC-GF3
1,900 ms
Nikon 1 J1
1,400 ms

Continuous shooting Delay between fully pressing shutter to image capture

Lumix DMC-GF3
3.8 fps
Nikon 1 J1
60 fps

Features Key features of the Lumix DMC-GF3  vs Nikon 1 J1 

Megapixels Maximum resolution images are captured at

Max ISO Maximum light sensitivity of the sensor

Lumix DMC-GF3
6,400 ISO
Nikon 1 J1
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-GF3
18.7 microns
Nikon 1 J1
11.6 microns

Reviews Word on the street

Lumix DMC-GF3  vs Nikon 1 J1 

7.1
6.9
The cumulative exposure value is set by the camera, regardless of the exact combination of shutter speed, ISO and aperture that appear on the screen before you start recording.
Lumix DMC-GF3

8.0
8.0
Conversely, the GF3 is a real street shooter's delight when paired with the 14mm or 20mm prime lenses, looking to all intents and purposes like an unthreatening compact, aided greatly by the even faster auto-focus system.
Lumix DMC-GF3

7.7
7.5
It delivers solid center sharpness and the GF3's JPEG algorithm doesn't oversharpen, so you get a nice naturally sharp feel to the images.
Lumix DMC-GF3

Overall

7.8 Out of 10
7.1 Out of 10

Specifications Full list of technical specs

sensor

Lumix DMC-GF3  vs
Nikon 1 J1 
Type CMOS CMOS
Megapixels 12 MP 10 MP
Resolution 4000 x 3000 3872 x 2592
Size Four Thirds Nikon CX
Area 17.3 x 13 mm 13.2 x 8.8 mm
Crop factor 2.1x 2.7x
Pixel size 18.7 microns 11.6 microns
Light sensitivity 160 ISO to 6,400 ISO 100 ISO to 3,200 ISO
Codecs
RAW
JPEG
Self cleaning sensor Yes No
Tested vertical resolution 2,400 LPH 2,600 LPH
Tested horizontal resolution 2,400 LPH 2,600 LPH

focus system

Type Contrast detection Phase detection
Focus points 23 135
Supports continuous No No

shutter

Min 60 s 30 s
Max 1/4000 s 1/16000 s

form factor

Size 107.7 x 67.1 x 32.5 mm 106 x 61 x 29.8 mm
Thickness 32.5 mm 29.8 mm
Weight 264 g 277 g
Is weather sealed No No

features

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

video

Lumix DMC-GF3  vs
Nikon 1 J1 
Video 1920 x 1080 @ 30 fps 1920 x 1080 @ 30 fps
Shoots video in 24p No No
Shoots high speed video No Yes
External mic jack None None
Autofocus while shooting video Contrast detection Phase detection
Autofocus type Contrast detection Phase 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 3.8 fps 60 fps
Battery life 320 230
Continuous shooting
60 fps, JPEG
3.8 fps, JPEG
Focus lag 312 ms 94 ms
Shutter lag 81 ms 74 ms
Startup delay 1,900 ms 1,400 ms
Panasonic Lumix DMC-GF3
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Nikon 1 J1
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