Size and weight is a big decision factor when you are trying to find the ideal camera for your needs.
In this section, We are going to illustrate Canon G1 X III and Sony A390 side-by-side from the front, back and top in their relative dimensions. Canon G1 X III has external dimensions of 115 x 78 x 51 mm (4.53 x 3.07 x 2.01″) and weighs 399 g (0.88 lb / 14.07 oz) (including batteries). Sony A390 has external dimensions of 128 x 97 x 86 mm (5.04 x 3.82 x 3.39″) and weighs 549 g (1.21 lb / 19.37 oz) (including batteries).
Below you can see the front view size comparison of Canon G1 X III and Sony A390. Canon G1 X III is clearly the smaller of the two cameras. Its body is 13mm narrower, 19mm shorter and 35mm thinner than Sony A390. As you can tell, actually this is not a fair size comparison since Canon G1 X III has a built-in lens but Sony A390 doesn't. Once you put a lens on A390, its thickness will increase significantly.
![Canon G1 X III vs Sony A390 Camera Size Comparison - Front View]()
Comparison image of Canon G1 X III and Sony A390 Size, Weight and External Dimensions - Front View
Here is the back view size comparison of Canon G1 X III and Sony A390.
![Canon G1 X III vs Sony A390 Camera Size Comparison - Back View]()
Comparison image of Canon G1 X III and Sony A390 Size and Weight - Back View
Now lets look at the top view comparison of Canon G1 X III and Sony A390.
![Canon G1 X III vs Sony A390 Camera Size Comparison - Top View]()
Top View Comparison image of Canon G1 X III and Sony A390 Size
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Canon G1 X III is significantly lighter (150g ) than the Sony A390 which may become a big advantage especially on long walking trips.
Again, this comparison may not be very useful in real life as we are comparing the weight of a camera with a built-in lens to the body-only weight of an interchangeable lens camera. Once you put a lens on A390, the total kit will weigh much higher.
Weather Sealing
With its weather sealed body, we believe that G1 X III has a big advantage over A390 which doesn't provide any kind of environmental sealing.
LCD Screen Size and Features
Canon G1 X III's 3 LCD screen is slightly larger than Sony A390's 2.7" screen.
Canon G1 X III has a 24.0MP APS-C (22.3 x 14.9 mm ) sized CMOS sensor and features DIGIC 7 processor. On the other hand, Sony A390 has a 14.0MP APS-C (23.5 x 15.7 mm ) sized CCD sensor and features Bionz processor.
Canon G1 X III's sensor provides 10MP more than Sony A390's sensor, which gives a significant advantage in real life. You can print your images larger or crop more freely.
On the other hand, please keep in mind that Max sensor resolution is not the only determinant of resolving power. Factors such as the optical elements, low pass filter, pixel size and sensor technology also affects the final resolution of the captured image.
Below you can see the G1 X III and A390 sensor size comparison.
![Canon G1 X III vs Sony A390 Sensor Size Comparison]()
Sensor Size and Resolution Comparison image of Canon G1 X III and Sony A390 Cameras
As seen above, Sony A390 has a 1.1x Larger sensor area than Canon G1 X III. Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in same focal length and aperture.
In this section, we rank and compare Canon G1 X III and Sony A390 for five different photography types in order to make your decision process easier in case you are specifically interested in one or more of these areas.
Canon G1 X III for Portrait Photography
Sony A390 for Portrait Photography
Large APS-C (22.3 x 14.9 mm) sensor
Very High Resolution Sensor: 24.0MP
Image Stabilization
External Flash Shoe
Electronic Built-in Viewfinder
Not so good Ergonomics&Handling
Read the details
Large APS-C (23.5 x 15.7 mm) sensor
Image Stabilization
Optical Built-in Viewfinder
Good Ergonomics&Handling
Average Resolution Sensor: 14.0MP
Read the details
Canon G1 X III for Street Photography
Sony A390 for Street Photography
Large APS-C (22.3 x 14.9 mm) sensor
Image Stabilization
Electronic Built-in Viewfinder
Small Body
Live-view
Face-Detection Focusing
Fully Articulated LCD Screen
Fast Lens at Wide: f2.80
24 mm - Good Wide Angle Coverage
Read the details
Large APS-C (23.5 x 15.7 mm) sensor
Image Stabilization
Optical Built-in Viewfinder
Live-view
Face-Detection Focusing
Tilting LCD Screen
Large Body
Read the details
Canon G1 X III for Sports Photography
Sony A390 for Sports Photography
Image Stabilization
External Flash Shoe
Electronic Built-in Viewfinder
Fast Continuous Shooting: 9.0fps
Environmental Sealings
49 Focus Points
Wireless Connection
Average Max shutter speed: 1/2000s
Not so good Ergonomics&Handling
Poor Battery Life: 200 shots
72 mm Tele Lens
Read the details
Image Stabilization
Optical Built-in Viewfinder
Good Ergonomics&Handling
Fast Max shutter speed: 1/4000s
Slow Continuous Shooting: 3.0fps
Environmental Sealings
9 Focus Points
Poor Battery Life: 230 shots
Read the details
Canon G1 X III for Daily Photography
Sony A390 for Daily Photography
Large APS-C (22.3 x 14.9 mm) sensor
Compact Body
Environmental Sealings
399g
Body Thickness 51mm
3.0X Optical Zoom
Read the details
Large APS-C (23.5 x 15.7 mm) sensor
Large Body
549g
Body Thickness 86mm
Read the details
Canon G1 X III for Landscape Photography
Sony A390 for Landscape Photography
Large APS-C (22.3 x 14.9 mm) sensor
Very High Resolution Sensor: 24.0MP
24 mm - Good Wide Angle Coverage
Environmental Sealings
Read the details
Large APS-C (23.5 x 15.7 mm) sensor
Live-view
Average Resolution Sensor: 14.0MP
No Environmental Sealings
Read the details
You may have already made your decision about which camera suits better for your needs and your budget so far but in case you wonder how we rated Canon G1 X III and Sony A390, below you can find their scores in five different aspects.
Our Decision Algorithm dynamically scores cameras using 63 different specs, current price and DxO Mark scores (where possible) in order to make a more objective and consistent comparison.
Here is a summary of how Canon G1 X III and Sony A390 scores compare:
Canon G1 X III
Ranked
#6 out of 61 in Large sensor compact cameras
Ranked
#134 out of 1220 in all Cameras
Sony A390
Ranked
#41 out of 78 in Compact SLR cameras
Ranked
#305 out of 1220 in all Cameras
Canon G1 X III is the clear winner of this comparison. It has a higher Overall Score and beats Sony A390 in all criteria. It has better general image quality, more features, more compact body and offers more value for the money
| General |
Canon PowerShot G1 X Mark III |
Sony Alpha DSLR-A390 |
| Brand |
Canon |
Sony |
| Announced |
2017-10-25 |
2010-07-28 |
| Body Type |
Large sensor compact |
Compact SLR |
Sensor |
|
|
| Type |
CMOS |
CCD |
| Size |
APS-C |
APS-C |
| Dimensions |
22.3 x 14.9 mm |
23.5 x 15.7 mm |
| Area |
332.27mm2 |
368.95mm2 |
| Megapixels |
24 megapixels |
14 megapixels |
| Max Resolution |
6000 x 4000 |
4592 x 3056 |
| Max Native Light sensitivity |
25,600 ISO |
3,200 ISO |
| Min Native Light sensitivity |
100 ISO |
100 ISO |
| RAW Support |
|
|
Autofocus |
|
|
| AF Touch |
|
|
| AF Continuous |
|
|
| AF Single |
|
|
| AF Tracking |
|
|
| AF Selective |
|
|
| AF Center |
|
|
| AF Multi Area |
|
|
| AF Live View |
|
|
| AF Face Detection |
|
|
| AF Contrast Detection |
|
|
| AF Phase Detection |
|
|
| Number of Focus Points |
49 |
9 |
Lens |
|
|
| Manual Focus |
|
|
| Lens Mount |
fixed lens |
Sony/Minolta Alpha |
| Lens Focal Range |
24-72 mm (3x) |
no lens |
| Max Aperture |
F2.8-5.6 |
no lens |
| Macro Focus Range |
10cm |
no lens |
Screen |
|
|
| Type |
Fully Articulated |
Tilting |
| Size |
3 |
2.7" |
| Resolution |
1,040k dots |
230k dots |
| Touch Screen |
|
|
Viewfinder |
|
|
| Viewfinder |
Electronic |
Optical (pentamirror) |
| Viewfinder Resolution |
2,360k dots |
no electronic viewfinder |
| Viewfinder Coverage |
100% |
95% |
| Viewfinder Magnification |
n/a |
0.49x |
Photography Features |
|
|
| Max Mechanical Shutter |
1/2000s |
1/4000s |
| Shutter Priority |
|
|
| Aperture Priority |
|
|
| Manual Exposure Mode |
|
|
| Custom White Balance |
|
|
| Image Stabilization |
Optical |
Sensor-shift |
| Built-in Flash |
|
|
| Flash Range |
9.00 m (at Auto ISO) |
10.00 m (at ISO 100) |
| Max Flash Sync |
n/a |
1/160s |
| External Flash |
|
|
| Continuous Shooting |
9.0 fps |
3.0 fps |
| Multi-Segment |
|
|
| Average |
|
|
| Spot |
|
|
| Partial |
|
|
| AF-Area |
|
|
| Center Weighted |
|
|
| AE Bracketing |
|
|
| WB Bracketing |
|
|
Video Features |
|
|
| Max Video Resolution |
1920 x 1080 |
None |
| Video Formats |
MPEG-4, H.264 |
n/a |
| Microphone Port |
|
|
| Headphone Port |
|
|
Connectivity |
|
|
| Wireless Connectivity |
Built-In |
None |
| HDMI |
|
|
Physical |
|
|
| Environmental Sealing |
|
|
| Weight |
399g |
549g |
| Dimensions |
115 x 78 x 51mm |
128 x 97 x 86mm |
| Battery Life |
200 shots |
230 shots |
Other Features |
|
|
| Timelapse Recording |
|
|
| GPS |
None |
None |
DxO Sensor Scores |
|
|
| DxO Overall Score |
not tested |
66 |
| DxO Color Depth |
not tested |
22.5 |
| DxO Dynamic Range |
not tested |
11.5 |
| DxO Low Light ISO |
not tested |
607 |
|
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