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Canon SX70 vs Panasonic GH3

The Canon PowerShot SX70 HS and the Panasonic Lumix DMC-GH3 are two digital cameras that were officially introduced, respectively, in September 2018 and September 2012. The SX70 is a fixed lens compact, while the GH3 is a mirrorless interchangeable lens camera. The cameras are based on a 1/2.3-inch (SX70) and a Four Thirds (GH3) sensor. The Canon has a resolution of 20.2 megapixels, whereas the Panasonic provides 15.9 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Canon SX70   versus Panasonic GH3
Canon SX70 Panasonic GH3
Fixed lens compact camera Mirrorless system camera
21-1365mm f/3.4-6.5 Micro Four Thirds lenses
20.2 MP, 1/2.3" Sensor 15.9 MP, Four Thirds Sensor
4K/30p Video 1080/60p Video
ISO 100-3200 ISO 200-12800 (125-25600)
Electronic viewfinder (2360k dots) Electronic viewfinder (1746k dots)
3.0" LCD, 922k dots 3.0" LCD, 614k dots
Swivel screen (not touch-sensitive) Swivel touchscreen
10 shutter flaps per second 6 shutter flaps per second
Not weather sealedWeathersealed body
325 shots per battery charge540 shots per battery charge
127 x 91 x 117 mm, 608 g 133 x 93 x 82 mm, 550 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot SX70 HS and the Panasonic Lumix DMC-GH3? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

Body comparison

The physical size and weight of the Canon SX70 and the Panasonic GH3 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth dimensions are rounded to the nearest millimeter.

Size Canon SX70 vs Panasonic GH3
Compare SX70 versus GH3 top
Comparison SX70 or GH3 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic GH3 is notably larger (7 percent) than the Canon SX70. It is noteworthy in this context that the GH3 is splash and dust-proof, while the SX70 does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the SX70 has a lens built in, whereas the GH3 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the GH3 and their specifications in the Micro Four Thirds Lens Catalog.

Concerning battery life, the SX70 gets 325 shots out of its LP-E12 battery, while the GH3 can take 540 images on a single charge of its DMW-BLF19 power pack.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. In case you want to display and compare another camera duo, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Canon SX70» 5.0 in 3.6 in 4.6 in 21.4 oz 325 n Sep 2018 549 i i Canon SX70
 
Panasonic GH3« 5.2 in 3.7 in 3.2 in 19.4 oz 540 Y Sep 2012 1,299- i Panasonic GH3
 
Canon SX740« » 4.3 in 2.5 in 1.6 in 10.5 oz 265 n Jul 2018 399 i i Canon SX740
 
Canon 77D« » 5.2 in 3.9 in 3.0 in 19.0 oz 600 n Feb 2017 899 i i Canon 77D
 
Canon G9 X Mark II« » 3.9 in 2.3 in 1.2 in 7.3 oz 235 n Jan 2017 529 i i Canon G9 X Mark II
 
Canon M100« » 4.3 in 2.6 in 1.4 in 10.7 oz 295 n Aug 2017 499- i Canon M100
 
Canon SL2« » 4.8 in 3.7 in 2.8 in 16.0 oz 650 n Jun 2017 549- i Canon SL2
 
Canon SX730« » 4.3 in 2.5 in 1.6 in 10.6 oz 250 n Apr 2017 399- i Canon SX730
 
Canon SX60« » 5.0 in 3.7 in 4.5 in 22.9 oz 340 n Sep 2014 549- i Canon SX60
 
Nikon B700« » 4.9 in 3.3 in 4.2 in 19.9 oz 350 n Feb 2016 499 i i Nikon B700
 
Olympus E-M5 II« » 4.9 in 3.3 in 1.8 in 16.5 oz 310 Y Feb 2015 1,099- i Olympus E-M5 II
 
Olympus E-M1« » 5.1 in 3.7 in 2.5 in 17.5 oz 350 Y Sep 2013 1,399- i Olympus E-M1
 
Panasonic FZ80« » 5.1 in 3.7 in 4.7 in 21.7 oz 330 n Jan 2017 399 i i Panasonic FZ80
 
Panasonic GH4« » 5.2 in 3.7 in 3.3 in 19.8 oz 500 Y Feb 2014 1,499- i Panasonic GH4
 
Panasonic G6« » 4.8 in 3.3 in 2.8 in 13.8 oz 340 n Apr 2013 599- i Panasonic G6
 
Panasonic GH2« » 4.9 in 3.5 in 3.0 in 15.6 oz 330 n Sep 2010 899- i Panasonic GH2
 
Sony HX400V« » 5.1 in 3.7 in 4.1 in 23.3 oz 300 n Feb 2014 499 i i Sony HX400V
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The SX70 was launched at a lower price than the GH3, despite having a lens built in. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

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Sensor comparison

The size of the sensor inside a digital camera is one of the key determinants of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units in a sensor of the same technological generation. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon SX70 features a 1/2.3-inch sensor and the Panasonic GH3 a Four Thirds sensor. The sensor area in the GH3 is 704 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 5.6 and 2.0. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.

Canon SX70 and Panasonic GH3 sensor measures

Despite having a smaller sensor, the Canon SX70 offers a higher resolution of 20.2 megapixels, compared with 15.9 MP of the Panasonic GH3. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 1.18μm versus 3.76μm for the GH3). However, it should be noted that the SX70 is much more recent (by 6 years) than the GH3, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. Coming back to sensor resolution, it should be mentioned that the SX70 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Canon SX70 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the SX70 for good quality output (200 dots per inch) amounts to 25.9 x 19.4 inch or 65.8 x 49.4 cm, for very good quality (250 dpi) 20.7 x 15.6 inch or 52.7 x 39.5 cm, and for excellent quality (300 dpi) 17.3 x 13 inch or 43.9 x 32.9 cm. The corresponding values for the Panasonic GH3 are 23 x 17.3 inch or 58.5 x 43.9 cm for good quality, 18.4 x 13.8 inch or 46.8 x 35.1 cm for very good quality, and 15.4 x 11.5 inch or 39 x 29.3 cm for excellent quality prints.

The Canon PowerShot SX70 HS has a native sensitivity range from ISO 100 to ISO 3200. The corresponding ISO settings for the Panasonic Lumix DMC-GH3 are ISO 200 to ISO 12800, with the possibility to increase the ISO range to 125-25600.

SX70 versus GH3 MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
 
Canon SX70» 1/2.3 20.2 5184 38884K/30p----Canon SX70
 
Panasonic GH3« Four Thirds 15.9 4608 34561080/60p22.712.481271Panasonic GH3
 
Canon SX740« » 1/2.3 20.2 5184 38884K/30p----Canon SX740
 
Canon 77D« » APS-C 24.0 6000 40001080/60p23.613.397178Canon 77D
 
Canon G9 X Mark II« » 1-inch 20.0 5472 36481080/60p21.912.552265Canon G9 X Mark II
 
Canon M100« » APS-C 24.0 6000 40001080/60p23.512.9127278Canon M100
 
Canon SL2« » APS-C 24.0 6000 40001080/60p23.613.4104179Canon SL2
 
Canon SX730« » 1/2.3 20.2 5184 38881080/60p----Canon SX730
 
Canon SX60« » 1/2.3 14.2 4608 30721080/60p19.210.812739Canon SX60
 
Nikon B700« » 1/2.3 20.2 5184 38884K/30p----Nikon B700
 
Olympus E-M5 II« » Four Thirds 15.9 4608 34561080/60p23.012.584273Olympus E-M5 II
 
Olympus E-M1« » Four Thirds 15.9 4608 34561080/30p23.012.775773Olympus E-M1
 
Panasonic FZ80« » 1/2.3 18.0 4896 36724K/30p----Panasonic FZ80
 
Panasonic GH4« » Four Thirds 15.9 4608 34564K/30p23.212.879174Panasonic GH4
 
Panasonic G6« » Four Thirds 15.9 4608 34561080/60p21.311.563961Panasonic G6
 
Panasonic GH2« » Four Thirds 15.9 4608 34561080/60i21.211.365560Panasonic GH2
 
Sony HX400V« » 1/2.3 20.2 5184 38881080/60p----Sony HX400V

Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the SX70 provides a higher video resolution than the GH3. It can shoot video footage at 4K/30p, while the Panasonic is limited to 1080/60p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the SX70 offers a substantially higher resolution than the one in the GH3 (2360k vs 1746k dots). The adjacent table lists some of the other core features of the Canon SX70 and Panasonic GH3 along with similar information for a selection of comparators.

Core Features
  Camera
Model
Viewfinder
(Type or
'000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
Camera
Model
 
Canon SX70»2360 n 3.0 922 swivel n 1/2000s 10.0 Y Y Canon SX70
 
Panasonic GH3«1746 n 3.0 614 swivel Y 1/4000s 6.0 Y n Panasonic GH3
 
Canon SX740« »- n 3.0 922 tilting n 1/3200s 10.0 Y Y Canon SX740
 
Canon 77D« »optical Y 3.0 1040 swivel Y 1/4000s 6.0 Y n Canon 77D
 
Canon G9 X Mark II« »- n 3.0 1040 fixed Y 1/2000s 8.2 Y Y Canon G9 X Mark II
 
Canon M100« »- n 3.0 1040 tilting Y 1/4000s 6.1 Y n Canon M100
 
Canon SL2« »optical n 3.0 1040 swivel Y 1/4000s 5.0 Y n Canon SL2
 
Canon SX730« »- n 3.0 922 tilting n 1/3200s 5.9 Y Y Canon SX730
 
Canon SX60« »922 n 3.0 922 swivel n 1/2000s 6.4 Y Y Canon SX60
 
Nikon B700« »921 n 3.0 921 swivel n 1/4000s 5.0 Y Y Nikon B700
 
Olympus E-M5 II« »2360 n 3.0 1037 swivel Y 1/8000s 10.0 n Y Olympus E-M5 II
 
Olympus E-M1« »2360 n 3.0 1037 tilting Y 1/8000s 10.0 n Y Olympus E-M1
 
Panasonic FZ80« »1166 n 3.0 1040 fixed Y 1/2000s 10 Y Y Panasonic FZ80
 
Panasonic GH4« »2359 n 3.0 1036 swivel Y 1/8000s 12.0 Y n Panasonic GH4
 
Panasonic G6« »1440 n 3.0 1036 swivel Y 1/4000s 7.0 Y n Panasonic G6
 
Panasonic GH2« »1534 n 3.0 460 swivel n 1/4000s 3.0 Y n Panasonic GH2
 
Sony HX400V« »210 n 3.0 921 tilting n 1/4000s 10.0 Y Y Sony HX400V

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The GH3 has a touchscreen, while the SX70 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.

The Panasonic GH3 has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

Concerning the storage of imaging data, both the SX70 and the GH3 write their files to SDXC cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

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Connectivity comparison

For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Canon PowerShot SX70 HS and Panasonic Lumix DMC-GH3 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Canon SX70»-stereomonoY-micro2.0Y-YCanon SX70
 
Panasonic GH3«YstereomonoYYmini2.0Y--Panasonic GH3
 
Canon SX740« »-stereomono--micro2.0YYYCanon SX740
 
Canon 77D« »YstereomonoY-mini2.0YYYCanon 77D
 
Canon G9 X Mark II« »-stereomono--micro2.0YYYCanon G9 X Mark II
 
Canon M100« »-stereomono--mini2.0YYYCanon M100
 
Canon SL2« »YstereomonoY-mini2.0YYYCanon SL2
 
Canon SX730« »-stereomono--micro2.0YYYCanon SX730
 
Canon SX60« »YstereomonoY-mini2.0YY-Canon SX60
 
Nikon B700« »-stereomono--micro2.0YYYNikon B700
 
Olympus E-M5 II« »YstereomonoY-micro2.0Y--Olympus E-M5 II
 
Olympus E-M1« »YstereomonoY-micro2.0Y--Olympus E-M1
 
Panasonic FZ80« »Ystereomono--micro2.0Y--Panasonic FZ80
 
Panasonic GH4« »YstereomonoYYmicro2.0YY-Panasonic GH4
 
Panasonic G6« »YstereomonoY-mini2.0YY-Panasonic G6
 
Panasonic GH2« »YstereomonoY-mini2.0---Panasonic GH2
 
Sony HX400V« »Ystereomono--micro2.0YY-Sony HX400V

It is notable that the GH3 has a hotshoe, which makes it possible to easily attach optional accessories, such as an external flash gun. The SX70 does not feature such an accessory-socket.

Studio photographers will appreciate that the Panasonic GH3 (unlike the SX70) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The SX70 is a recent model that features in the current product line-up of Canon. In contrast, the GH3 has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the GH3 was succeeded by the Panasonic GH4. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Panasonic websites.



Review summary

So what is the bottom line? Which of the two cameras – the Canon SX70 or the Panasonic GH3 – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.

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Arguments in favor of the Canon PowerShot SX70 HS:

  • More detail: Offers more megapixels (20.2 vs 15.9MP) with a 13% higher linear resolution.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
  • More detailed viewfinder: Has higher resolution electronic viewfinder (2360k vs 1746k dots).
  • More detailed LCD: Has a higher resolution rear screen (922k vs 614k dots).
  • Faster burst: Shoots at higher frequency (10 vs 6 flaps/sec) to capture the decisive moment.
  • Ready to shoot: Has a lens built-in, whereas the GH3 requires a separate lens.
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More modern: Reflects 6 years of technical progress since the GH3 launch.

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Advantages of the Panasonic Lumix DMC-GH3:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
  • Richer colors: The pixel size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/2000s) to freeze action.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
  • Longer lasting: Gets more shots (540 versus 325) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • More heavily discounted: Has been around for much longer (launched in September 2012).

If the count of individual advantages (bullet points above) is taken as a guide, the GH3 is the clear winner of the contest (15 : 11 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. A professional wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

SX70 11:15 GH3

How about other alternatives? Do the specifications of the Canon SX70 and the Panasonic GH3 place the cameras among the top in their class? Find out in the latest Best Superzoom Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it says little about, for example, the shooting experience and imaging performance of the SX70 and the GH3 in practical situations. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews

This is why expert reviews are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Canon SX70»+ +-3.5/5-3.5/5 Sep 2018 549 i i Canon SX70
 
Panasonic GH3«+ +79/1004.5/55/54.5/5 Sep 2012 1,299- i Panasonic GH3
 
Canon SX740« »+-4/5-4/5 Jul 2018 399 i i Canon SX740
 
Canon 77D« »-82/1004.5/54.5/54/5 Feb 2017 899 i i Canon 77D
 
Canon G9 X Mark II« »-75/1004.5/54.5/54.5/5 Jan 2017 529 i i Canon G9 X Mark II
 
Canon M100« »+-4/5-3.5/5 Aug 2017 499- i Canon M100
 
Canon SL2« »+ +78/1004.5/54.5/54.5/5 Jun 2017 549- i Canon SL2
 
Canon SX730« »+-4/5-4/5 Apr 2017 399- i Canon SX730
 
Canon SX60« »+ +75/1004/5-4.5/5 Sep 2014 549- i Canon SX60
 
Nikon B700« »+-4/5-4/5 Feb 2016 499 i i Nikon B700
 
Olympus E-M5 II« »+ +81/1005/54.5/55/5 Feb 2015 1,099- i Olympus E-M5 II
 
Olympus E-M1« »+ +84/1004.5/54.5/54.5/5 Sep 2013 1,399- i Olympus E-M1
 
Panasonic FZ80« »+ +-4.5/5-4.5/5 Jan 2017 399 i i Panasonic FZ80
 
Panasonic GH4« »+ +85/1005/55/55/5 Feb 2014 1,499- i Panasonic GH4
 
Panasonic G6« »+ +-5/5-4.5/5 Apr 2013 599- i Panasonic G6
 
Panasonic GH2« »+ +79/1004.5/54.5/55/5 Sep 2010 899- i Panasonic GH2
 
Sony HX400V« »+ +-4/5-4/5 Feb 2014 499 i i Sony HX400V
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (-) not available.

The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

Canon SX70:
Check Amazon price
Panasonic GH3:
Check Ebay offers

Other camera comparisons

Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Canon SX70 vs Panasonic GH3

    Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.

    Camera Specifications
    Camera Model Canon SX70 Panasonic GH3
    Camera Type Fixed lens compact camera Mirrorless system camera
    Camera Lens 21-1365mm f/3.4-6.5 Micro Four Thirds lenses
    Launch Date September 2018 September 2012
    Launch Price USD 549 USD 1299
    Sensor Specs Canon SX70 Panasonic GH3
    Sensor Technology BSI-CMOS CMOS
    Sensor Format 1/2.3" Sensor Four Thirds Sensor
    Sensor Size 6.17 x 4.55 mm 17.3 x 13.0 mm
    Sensor Area 28.0735 mm2 224.9 mm2
    Sensor Diagonal 7.7 mm 21.6 mm
    Crop Factor 5.6x 2.0x
    Sensor Resolution 20.2 Megapixels 15.9 Megapixels
    Image Resolution 5184 x 3888 pixels 4608 x 3456 pixels
    Pixel Pitch 1.18 μm 3.76 μm
    Pixel Density 71.80 MP/cm2 7.08 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 4K/30p Video 1080/60p Video
    ISO Setting 100-3200 ISO 200-12800 ISO
    ISO Boost no Enhancement 125-25600 ISO
    Image Processor DIGIC 8 Venus VII FHD
    DXO Sensor Quality (score) .. 71
    DXO Color Depth (bits) .. 22.7
    DXO Dynamic Range (EV) .. 12.4
    DXO Low Light (ISO) .. 812
    Screen Specs Canon SX70 Panasonic GH3
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification ..x 0.67x
    Viewfinder Resolution 2360k dots 1746k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0 inch 3.0 inch
    LCD Resolution 922k dots 614k dots
    LCD Attachment Swivel screen Swivel screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Canon SX70 Panasonic GH3
    Autofocus System Contrast-detect AF Contrast-detect AF
    Manual Focusing AidFocus PeakingNo Peaking Feature
    Continuous Shooting 10 shutter flaps/s 6 shutter flaps/s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Fill Flash Build-in Flash Build-in Flash
    Storage Medium SDXC cards SDXC cards
    Second Storage Option Single card slot Single card slot
    UHS card support UHS-I UHS-I
    Connectivity Specs Canon SX70 Panasonic GH3
    External Flash no Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI mini HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Canon SX70 Panasonic GH3
    Environmental SealingNot weather sealedWeathersealed body
    Battery Type LP-E12 DMW-BLF19
    Battery Life (CIPA)325 shots per charge540 shots per charge
    Body Dimensions 127 x 91 x 117 mm
    (5.0 x 3.6 x 4.6 in)
    133 x 93 x 82 mm
    (5.2 x 3.7 x 3.2 in)
    Camera Weight 608 g (21.4 oz) 550 g (19.4 oz)

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