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 Sony A7R III and Olympus SP-820UZ side-by-side from the front, back and top in their relative dimensions. Sony A7R III has external dimensions of 127 x 96 x 74 mm (5 x 3.78 x 2.91″) and weighs 657 g (1.45 lb / 23.17 oz) (including batteries). Olympus SP-820UZ has external dimensions of and weighs 485 g (1.07 lb / 17.11 oz) (including batteries).
Below you can see the front view size comparison of Sony A7R III and Olympus SP-820UZ. Olympus SP-820UZ is 10mm narrower and 18mm shorter than Sony A7R III but it is also 19mm thicker. As you can tell, actually this is not a fair size comparison since Olympus SP-820UZ has a built-in lens but Sony A7R III doesn't. Once you put a lens on A7R III, its thickness will increase significantly.
Comparison image of Sony A7R III and Olympus SP-820UZ Size, Weight and External Dimensions - Front View
Now lets look at the top view comparison of Sony A7R III and Olympus SP-820UZ.
Top View Comparison image of Sony A7R III and Olympus SP-820UZ Size
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Olympus SP-820UZ is significantly lighter (172g ) than the Sony A7R III 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 A7R III, the total kit will weigh much higher.
Weather Sealing
With its weather sealed body, we believe that A7R III has a big advantage over SP-820UZ which doesn't provide any kind of environmental sealing.
LCD Screen Size and Features
Sony A7R III and Olympus SP-820UZ's LCD screens has the same diagonal size of 3.
On the other hand, Sony A7R III features a
Tilting screen where you can change the angle of the screen to make it easier to shoot from waist or over the head levels whereas the Olympus SP-820UZ has a fixed type screen which provides less flexibility in shooting positions compared to A7R III.
Sony A7R III has a 42.0MP Full frame (35.9 x 24 mm ) sized BSI-CMOS sensor and features Bionz X processor. On the other hand, Olympus SP-820UZ has a 14.0MP 1/2.3" (6.17 x 4.55 mm ) sized CMOS sensor .
Sony A7R III's sensor provides 28MP more than Olympus SP-820UZ'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.
Another difference between these two cameras is that Sony A7R III's sensor lacks anti-alias (Low-Pass) filter. Removing anti-alias filter increases the sharpness and level of detail but at the same time, it increases the chance of moire occurring in certain scenes.
Below you can see the A7R III and SP-820UZ sensor size comparison.
Sensor Size and Resolution Comparison image of Sony A7R III and Olympus SP-820UZ Cameras
As seen above, Sony A7R III has a 30.7x Larger sensor area than Olympus SP-820UZ. 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 Sony A7R III and Olympus SP-820UZ 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.
Sony A7R III for Portrait Photography
Olympus SP-820UZ for Portrait Photography
Large Full frame (35.9 x 24 mm) sensor
Very High Resolution Sensor: 42.0MP
Image Stabilization
Electronic Built-in Viewfinder
Good Ergonomics&Handling
Read the details
Average Resolution Sensor: 14.0MP
Small 1/2.3" (6.17 x 4.55 mm) sensor
No Image Stabilization
No RAW shooting capability
No External Flash Shoe
No Built-in Viewfinder
No Manual Focus Mode
No Manual Exposure Mode
Not so good Ergonomics&Handling
Read the details
Sony A7R III for Street Photography
Olympus SP-820UZ for Street Photography
Large Full frame (35.9 x 24 mm) sensor
Image Stabilization
Electronic Built-in Viewfinder
Live-view
Face-Detection Focusing
Tilting LCD Screen
Medium sized Body
Read the details
Small Body
Live-view
Face-Detection Focusing
22 mm - Good Wide Angle Coverage
Small 1/2.3" (6.17 x 4.55 mm) sensor
No Image Stabilization
No RAW shooting capability
No Built-in Viewfinder
No Manual Focus Mode
Read the details
Sony A7R III for Sports Photography
Olympus SP-820UZ for Sports Photography
Image Stabilization
Electronic Built-in Viewfinder
Good Ergonomics&Handling
Fast Continuous Shooting: 10.0fps
Anti Flicker feature
Environmental Sealings
Fast Max shutter speed: 1/8000s
425 Focus Points
Good Battery Life: 650 shots
Good Low Light ISO
Wireless Connection
Read the details
896 mm Tele Lens
Average Max shutter speed: 1/2000s
No Image Stabilization
No RAW shooting capability
No External Flash Shoe
No Built-in Viewfinder
No Manual Focus Mode
No Manual Exposure Mode
Not so good Ergonomics&Handling
Slow Continuous Shooting: 2.0fps
Environmental Sealings
Unknown Focus Points
Slow Lens at Tele: f5.70
Read the details
Sony A7R III for Daily Photography
Olympus SP-820UZ for Daily Photography
Large Full frame (35.9 x 24 mm) sensor
Anti Flicker feature
Environmental Sealings
Medium size Body
657g
Body Thickness 74mm
Read the details
Compact Body
40.7X Optical Zoom
Small 1/2.3" (6.17 x 4.55 mm) sensor
No RAW shooting capability
485g
Body Thickness 93mm
Read the details
Sony A7R III for Landscape Photography
Olympus SP-820UZ for Landscape Photography
Large Full frame (35.9 x 24 mm) sensor
Very High Resolution Sensor: 42.0MP
Environmental Sealings
Live-view
Read the details
22 mm - Good Wide Angle Coverage
Average Resolution Sensor: 14.0MP
Small 1/2.3" (6.17 x 4.55 mm) sensor
No RAW shooting capability
No Manual Focus Mode
No Manual Exposure Mode
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 Sony A7R III and Olympus SP-820UZ, 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 Sony A7R III and Olympus SP-820UZ scores compare:
Sony A7R III
Ranked
#4 out of 86 in SLR-style mirrorless cameras
Ranked
#4 out of 1220 in all Cameras
Olympus SP-820UZ
Ranked
#394 out of 475 in Compact cameras
Ranked
#1073 out of 1220 in all Cameras
Sony A7R III is the overall winner of this comparison. It has a higher Overall Score and beats Olympus SP-820UZ in all criteria except one: Portability. But the size difference between these cameras are negligible in real world so it is not a big disadvantage for Sony A7R III.
General |
Sony Alpha A7R III |
Olympus Stylus SP-820UZ |
Brand |
Sony |
Olympus |
Announced |
2017-10-25 |
2012-08-21 |
Body Type |
SLR-style mirrorless |
Compact |
Sensor |
|
|
Type |
BSI-CMOS |
CMOS |
Size |
Full frame |
1/2.3" |
Dimensions |
35.9 x 24 mm |
6.17 x 4.55 mm |
Area |
861.60mm2 |
28.07mm2 |
Megapixels |
42 megapixels |
14 megapixels |
Max Resolution |
7952 x 5304 |
4288 x 3216 |
Max Native Light sensitivity |
32,000 ISO |
6,400 ISO |
Max Boosted Light Sensitivity |
102400 ISO |
- |
Min Native Light sensitivity |
100 ISO |
80 ISO |
Min Boosted Light Sensitivity |
50 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 |
425 |
n/a |
Lens |
|
|
Manual Focus |
|
|
Lens Mount |
Sony E |
fixed lens |
Lens Focal Range |
no lens |
22-896 mm (40×) |
Max Aperture |
no lens |
F3.4-5.7 |
Macro Focus Range |
no lens |
1cm |
Screen |
|
|
Type |
Tilting |
Fixed type |
Size |
3 |
3" |
Resolution |
1,440k dots |
460k dots |
Touch Screen |
|
|
Viewfinder |
|
|
Viewfinder |
Electronic |
None |
Viewfinder Resolution |
3,686k dots |
no electronic viewfinder |
Viewfinder Coverage |
100% |
n/a |
Viewfinder Magnification |
0.78x |
n/a |
Photography Features |
|
|
Max Mechanical Shutter |
1/8000s |
1/2000s |
Shutter Priority |
|
|
Aperture Priority |
|
|
Manual Exposure Mode |
|
|
Custom White Balance |
|
|
Image Stabilization |
Sensor-shift |
No |
Built-in Flash |
|
|
Flash Range |
no built-in flash |
15.00 m |
External Flash |
|
|
Continuous Shooting |
10.0 fps |
2.0 fps |
Multi-Segment |
|
|
Average |
|
|
Spot |
|
|
Partial |
|
|
AF-Area |
|
|
Center Weighted |
|
|
AE Bracketing |
|
|
WB Bracketing |
|
|
Video Features |
|
|
Max Video Resolution |
3840 x 2160 |
1920 x 1080 |
Video Formats |
MPEG-4, AVCHD, XAVC S |
MPEG-4, H.264 |
Microphone Port |
|
|
Headphone Port |
|
|
Connectivity |
|
|
Wireless Connectivity |
Built-In |
None |
HDMI |
|
|
Physical |
|
|
Environmental Sealing |
|
|
Weight |
657g |
485g |
Dimensions |
127 x 96 x 74mm |
117 x 78 x 93 mmmm |
Battery Life |
650 shots |
n/a |
Other Features |
|
|
Timelapse Recording |
|
|
GPS |
None |
None |
DxO Sensor Scores |
|
|
DxO Overall Score |
100 |
not tested |
DxO Color Depth |
26.0 |
not tested |
DxO Dynamic Range |
14.7 |
not tested |
DxO Low Light ISO |
3523 |
not tested |
|
Report a correction |
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