What is the crop factor of the Panasonic G3?
The Panasonic Lumix DMC-G3 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.
Sensor size comparison with a film slide
With a crop factor of 2.0, the sensor in the Panasonic G3 is smaller than the receptor area of a 35mm film slide or negative. As a result, a lens that is attached to the Panasonic G3 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 G3 will provide the same angle of view and depth of field as a 50mm normal lens on a film camera (25mm * 2.0 = 50mm).
Sensor specs and performance
The table below compares the sensor specs of the Panasonic G3 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.
Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Panasonic G3 | Four Thirds | 15.8 | 4592 | 3448 | 1080/60i | 21.0 | 10.6 | 667 | 56 | |
2. | Panasonic G1 | Four Thirds | 12.0 | 4000 | 3000 | none | 21.1 | 10.3 | 463 | 53 | |
3. | Panasonic G2 | Four Thirds | 12.0 | 4000 | 3000 | 720/30p | 21.2 | 10.3 | 493 | 53 | |
4. | Panasonic G5 | Four Thirds | 15.9 | 4608 | 3456 | 1080/60p | 21.4 | 11.6 | 618 | 61 | |
5. | Panasonic G6 | Four Thirds | 15.9 | 4608 | 3456 | 1080/60p | 21.3 | 11.5 | 639 | 61 | |
6. | Panasonic G10 | Four Thirds | 12.0 | 4000 | 3000 | 720/30p | 21.2 | 10.1 | 411 | 52 | |
7. | Panasonic GF2 | Four Thirds | 12.0 | 4000 | 3000 | 1080/60i | 21.2 | 10.3 | 506 | 54 | |
8. | Panasonic GF3 | Four Thirds | 12.0 | 4000 | 3000 | 1080/60i | 20.6 | 10.1 | 459 | 50 | |
9. | Panasonic GF6 | Four Thirds | 15.8 | 4592 | 3448 | 1080/60i | 20.7 | 10.6 | 622 | 54 | |
10. | Panasonic GH2 | Four Thirds | 15.9 | 4608 | 3456 | 1080/60i | 21.2 | 11.3 | 655 | 60 | |
11. | Panasonic GX1 | Four Thirds | 15.8 | 4592 | 3448 | 1080/60p | 20.8 | 10.6 | 703 | 55 |
In the United States, the G3 was initially launched in May 2011 at a price of $599.
Camera to camera comparisons
In case you would like to check on the differences and similarities with other camera models, just use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
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- Panasonic G3 vs Sony NEX-5
Camera Model | Panasonic G3 | |
---|---|---|
Camera Type | Mirrorless system camera | |
Camera Lens | Micro Four Thirds lenses | |
Launch Date | May 2011 | |
Launch Price | USD 599 | |
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 | 15.8 Megapixels | |
Image Resolution | 4 592 x 3 448 pixels | |
Pixel Pitch | 3.77 μm | |
Pixel Density | 7.04 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) | 56 | |
DXO Color Depth (bits) | 21.0 | |
DXO Dynamic Range (EV) | 10.6 | |
DXO Low Light (ISO) | 667 | |
Screen Specs | ||
Viewfinder Type | Electronic viewfinder | |
Viewfinder Field of View | 100% | |
Viewfinder Magnification | 0.70x | |
Viewfinder Resolution | 1440k dots | |
Top-Level Screen | no Top Display | |
LCD Framing | Live View | |
LCD Size | 3.0 inch | |
LCD Resolution | 460k dots | |
LCD Attachment | Swivel screen | |
V-logging Friendliness | Front-flip possible | |
Touch Input | Touchscreen | |
Shooting Specs | ||
Focus System | Contrast-detect AF | |
Manual Focusing Aid | no Peaking Feature | |
Maximum Shutter Speed | 1/4000s | |
Continuous Shooting | 4 shutter flaps/s | |
Shutter Life Expectancy | 100 000 actuations | |
Silent Shooting | no E-Shutter | |
Time Lapse Photography | no 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 | Hotshoe | |
USB Connector | USB 2.0 | |
HDMI Port | mini HDMI | |
Wifi Support | no Wifi | |
Body Specs | ||
Battery Type | Panasonic DMW-BLD10 power pack | |
Battery Life (CIPA) | 270 shots per charge | |
Body Dimensions |
115 x 84 x 47 mm (4.5 x 3.3 x 1.9 in) |
|
Camera Weight | 336 g (11.9 oz) |
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