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What is the crop factor of the Panasonic GF3?

The Panasonic Lumix DMC-GF3 is equipped with a Four Thirds sensor, whose diagonal measures 21.6mm. The sensor has a crop factor (or format factor, or focal length multiplier) of 2.0.

The crop factor is defined as the ratio of the 35mm full-frame film diagonal to the diagonal of a digital sensor. This number indicates how a lens behaves in relation to the size of the image sensor.

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Sensor size comparison with a film slide

With a crop factor of 2.0, the sensor in the Panasonic GF3 is smaller than the receptor area of a 35mm film slide or negative. As a result, a lens that is attached to the Panasonic GF3 will offer a narrower angle of view and provide deeper depth of field than a lens of similar focal length and aperture on a film camera. The equivalent focal length is obtained by multiplying the actual focal length of the lens with the crop factor. For example, a 25mm lens on the Panasonic GF3 will provide the same angle of view and depth of field as a 50mm normal lens on a film camera (25mm * 2.0 = 50mm).

Panasonic GF3 and Credit Card sensor measures
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Sensor specs and performance

The table below compares the sensor specs of the Panasonic GF3 to those of several similar cameras. The reported DXO values are indicators of the sensor's imaging quality (higher is better), covering color depth (DXO Portrait), dynamic range (DXO Landscape), and high-ISO noise (DXO Sports). Larger sensor cameras tend to outperform cameras of the same generation that are equipped with a smaller imager. On the other hand, larger sensors are more expensive and require bigger and heavier lenses than smaller light receptors.

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Sensor Characteristics
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Panasonic GF3 Four Thirds 12.0 4000 30001080/60i20.610.145950
2.
 
Olympus E-PL3 Four Thirds 12.2 4032 30241080/60i20.910.349952
3.
 
Olympus E-PM1 Four Thirds 12.2 4032 30241080/60i21.010.349952
4.
 
Panasonic G1 Four Thirds 12.0 4000 3000none21.110.346353
5.
 
Panasonic G2 Four Thirds 12.0 4000 3000720/30p21.210.349353
6.
 
Panasonic G3 Four Thirds 15.8 4592 34481080/60i21.010.666756
7.
 
Panasonic G10 Four Thirds 12.0 4000 3000720/30p21.210.141152
8.
 
Panasonic GF2 Four Thirds 12.0 4000 30001080/60i21.210.350654
9.
 
Panasonic GF5 Four Thirds 12.0 4000 30001080/60i20.510.057350
10.
 
Panasonic LX5 1/1.7 10.0 3648 2736720/60p19.610.813241
11.
 
Panasonic LX7 1/1.7 10.0 3648 27361080/60p20.711.714750
Further information on the sensor in the Panasonic GF3 and the camera's operation can be found in the camera manual.

In the United States, the GF3 was initially launched in June 2011 at a price of $549.

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Camera to camera comparisons

In case you are interested in seeing how this camera compares to another one, just make a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications Summary
    Camera Model Panasonic GF3
    Camera Type Mirrorless system camera
    Camera Lens Micro Four Thirds lenses
    Launch Date June 2011
    Launch Price USD 549
    Sensor Specs
    Sensor Technology CMOS
    Sensor Format Four Thirds Sensor
    Sensor Size 17.3 x 13.0 mm
    Sensor Area 225 mm2
    Sensor Diagonal 21.6 mm
    Crop Factor 2.0x
    Sensor Resolution 12 Megapixels
    Image Resolution 4 000 x 3 000 pixels
    Pixel Pitch 4.33 μm
    Pixel Density 5.34 MP/cm2
    Moiré control Anti-Alias filter
    Movie Capability 1080/60i Video
    ISO Setting 160 - 6 400 ISO
    Image Processor Venus FHD
    DXO Sensor Quality (score) 50
    DXO Color Depth (bits) 20.6
    DXO Dynamic Range (EV) 10.1
    DXO Low Light (ISO) 459
    Screen Specs
    Viewfinder Type No viewfinder
    Top-Level Screen no Top Display
    LCD Framing Live View
    LCD Size 3.0 inch
    LCD Resolution 460k dots
    LCD Attachment Fixed screen
    Touch Input Touchscreen
    Shooting Specs
    Focus System Contrast-detect AF
    Manual Focusing Aidno Peaking Feature
    Maximum Shutter Speed 1/4000s
    Continuous Shooting 3.2 shutter flaps/s
    Shutter Life Expectancy100 000 actuations
    Silent Shootingno E-Shutter
    Time Lapse Photographyno Intervalometer
    Fill Flash Built-in Flash
    Storage Medium SDXC cards
    Single or Dual Card Slots Single card slot
    UHS card support no
    Connectivity Specs
    External Flash no Hotshoe
    USB Connector USB 2.0
    HDMI Port mini HDMI
    Wifi Support no Wifi
    Body Specs
    Battery Type Panasonic DMW-BLE9 power pack
    Battery Life (CIPA)300 shots per charge
    Body Dimensions 108 x 67 x 32 mm
    (4.3 x 2.6 x 1.3 in)
    Camera Weight 264 g (9.3 oz)

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