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Panasonic GH5s vs Sony A7R III

The Panasonic Lumix DC-GH5s and the Sony Alpha A7R III are two enthusiast cameras that were officially introduced, respectively, in January 2018 and October 2017. Both the GH5s and the A7R III are mirrorless interchangeable lens cameras that are based on a Four Thirds (GH5s) and a full frame (A7R III) sensor. The Panasonic has a resolution of 9.9 megapixels, whereas the Sony provides 42.2 MP. Read on to find out how these two cameras compare with respect to their body size, their sensors, their features, their input-output connections, and their reception by expert reviewers.


Headline Specifications
Panasonic GH5s   Sony A7R III
Panasonic GH5s Sony A7R III
Mirrorless system camera Mirrorless system camera
Micro Four Thirds lenses Sony E mount lenses
9.9 MP, Four Thirds Sensor 42.2 MP, Full Frame Sensor
4K/60p Video 4K/30p Video
ISO 160-51200 (80-204800) ISO 100-32000 (50-102400)
Electronic viewfinder (3680k dots) Electronic viewfinder (3686k dots)
3.2" LCD, 1620k dots 3.0" LCD, 1440k dots
Swivel touchscreen Tilting touchscreen
12 shutter flaps per second 10 shutter flaps per second
Lens stabilization onlyIn-body stabilization
Weathersealed bodyWeathersealed body
440 shots per battery charge650 shots per battery charge
139 x 98 x 87 mm, 660 g 127 x 96 x 74 mm, 650 g

Body comparison: Panasonic GH5s vs Sony A7R III

The side-by-side display below illustrates the physical size and weight of the Panasonic GH5s and the Sony A7R III. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth measures are rounded to the nearest millimeter. If you prefer, you can also use the toggle button to switch to a comparison in percentage terms (in this case, the camera on the left side – the GH5s – represents the basis for the calculations across all the size and weight measures).

Compare Panasonic GH5s and Sony A7R III
Compare GH5s versus A7R III top
Compare GH5s or A7R III rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7R III is notably smaller (10 percent) than the Panasonic GH5s. Moreover, the A7R III is slightly lighter (2 percent) than the GH5s. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Micro Four Thirds Lens Catalog (GH5s) and the Sony FE Lens Catalog (A7R III). Mirrorless cameras, such as the two under consideration, have the additional advantage of having a short flange to focal plane distance, which makes it possible to mount many lenses from other systems onto the camera via adapters.

Concerning battery life, the GH5s gets 440 shots out of its DMW-BLF19 battery, while the A7R III can take 650 images on a single charge of its NP-FZ100 power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

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
Panasonic GH5s» 5.5 in 3.9 in 3.4 in 23.3 oz 440 Y Jan 2018 2,499 i i Panasonic GH5s
Sony A7R III« 5.0 in 3.8 in 2.9 in 22.9 oz 650 Y Oct 2017 3,199 i i Sony A7R III
Canon R« » 5.5 in 3.9 in 3.3 in 23.3 oz 370 Y Sep 2018 2,299 i i Canon R
Panasonic G9« » 5.4 in 3.8 in 3.6 in 23.2 oz 400 Y Nov 2017 1,699 i i Panasonic G9
Panasonic GH5« » 5.5 in 3.9 in 3.4 in 25.6 oz 410 Y Jan 2017 1,999 i i Panasonic GH5
Panasonic FZ300« » 5.2 in 3.6 in 4.6 in 24.4 oz 380 Y Jul 2015 599 i i Panasonic FZ300
Panasonic GH4« » 5.2 in 3.7 in 3.3 in 19.8 oz 500 Y Feb 2014 1,499- i Panasonic GH4
Panasonic GF5« » 4.3 in 2.6 in 1.5 in 9.4 oz 360 n Apr 2012 499- i Panasonic GF5
Panasonic GH3« » 5.2 in 3.7 in 3.2 in 19.4 oz 540 Y Sep 2012 1,299- i Panasonic GH3
Panasonic GF3« » 4.3 in 2.6 in 1.3 in 9.3 oz 300 n Jun 2011 549- i Panasonic GF3
Panasonic G10« » 4.9 in 3.3 in 2.9 in 13.7 oz 380 n Mar 2010 499- i Panasonic G10
Panasonic G2« » 4.9 in 3.3 in 2.9 in 15.1 oz 360 n Mar 2010 599- i Panasonic G2
Sony A7 III« » 5.0 in 3.8 in 2.9 in 22.9 oz 610 Y Feb 2018 1,999 i i Sony A7 III
Sony A9« » 5.0 in 3.8 in 2.5 in 23.7 oz 650 Y Apr 2017 4,499 i i Sony A9
Sony A99 II« » 5.6 in 4.1 in 3.0 in 29.9 oz 490 Y Sep 2016 3,199 i i Sony A99 II
Sony A7R II« » 5.0 in 3.8 in 2.4 in 22.0 oz 290 Y Jun 2015 3,199- i Sony A7R II
Sony A7S II« » 5.0 in 3.8 in 2.4 in 22.1 oz 370 Y Sep 2015 2,999 i i Sony A7S II

Any camera decision will naturally be influenced heavily by the price. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The GH5s was launched at a somewhat lower price (by 22 percent) than the A7R III, which makes it more attractive for photographers on a tight budget. 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.

 

Sensor comparison: Panasonic GH5s vs Sony A7R III

The size of the sensor inside a digital camera is one of the key determinants of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Panasonic GH5s features a Four Thirds sensor and the Sony A7R III a full frame sensor. The sensor area in the A7R III is 283 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 1.0. The sensor in the GH5s has a native 4:3 aspect ratio, while the one in the A7R III offers a 3:2 aspect.

Panasonic GH5s and Sony A7R III sensor measures

With 42.2MP, the A7R III offers a higher resolution than the GH5s (9.9MP), but the A7R III has smaller individual pixels (pixel pitch of 4.52μm versus 4.77μm for the GH5s). It is noteworthy in this context that the two cameras were released in close succession, so that their sensors are from the same technological generation. Coming back to sensor resolution, it should be mentioned that neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.

The A7R III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during video recording.

Unlike the GH5s, the A7R III has the capacity to capture high quality composite images by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

The Panasonic Lumix DC-GH5s has a native sensitivity range from ISO 160 to ISO 51200, which can be extended to ISO 80-204800. The corresponding ISO settings for the Sony Alpha A7R III are ISO 100 to ISO 32000, with the possibility to increase the ISO range to 50-102400..

GH5s versus A7R III MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
Panasonic GH5s» Four Thirds 9.9 3680 27004K/60p----Panasonic GH5s
Sony A7R III« Full Frame 42.2 7952 53044K/30p26.014.73523100Sony A7R III
Canon R« » Full Frame 30.1 6720 44804K/30p----Canon R
Panasonic G9« » Four Thirds 20.2 5184 38884K/60p----Panasonic G9
Panasonic GH5« » Four Thirds 20.2 5184 38884K/60p23.913.080777Panasonic GH5
Panasonic FZ300« » 1/2.3 12.0 4000 30004K/30p19.311.09738Panasonic FZ300
Panasonic GH4« » Four Thirds 15.9 4608 34564K/30p23.212.879174Panasonic GH4
Panasonic GF5« » Four Thirds 12.0 4000 30001080/60i21.411.661861Panasonic GF5
Panasonic GH3« » Four Thirds 15.9 4608 34561080/60p22.712.481271Panasonic GH3
Panasonic GF3« » Four Thirds 12.0 4000 30001080/60i20.610.045849Panasonic GF3
Panasonic G10« » Four Thirds 12.0 4000 3000720/30p21.210.141152Panasonic G10
Panasonic G2« » Four Thirds 12.0 4000 3000720/30p21.210.349353Panasonic G2
Sony A7 III« » Full Frame 24.0 6000 40004K/30p25.014.7373096Sony A7 III
Sony A9« » Full Frame 24.0 6000 40004K/30p24.913.3351792Sony A9
Sony A99 II« » Full Frame 42.2 7952 53044K/30p25.413.4231792Sony A99 II
Sony A7R II« » Full Frame 42.2 7952 53044K/30p26.013.9343498Sony A7R II
Sony A7S II« » Full Frame 12.0 4240 28324K/30p23.613.3299385Sony A7S II

Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the GH5s provides a higher frame rate than the A7R III. It can shoot video footage at 4K/60p, while the Sony is limited to 4K/30p.

 

Feature comparison: Panasonic GH5s vs Sony A7R III

Apart from body and sensor, cameras can and do differ across a range of features. The two cameras under review are similar with respect to both having an electronic viewfinder. However, the one in the A7R III offers a slightly higher resolution than the one in the GH5s (3686k vs 3680k dots). The table below summarizes some of the other core capabilities of the Panasonic GH5s and Sony A7R III in connection with corresponding information for a sample of similar cameras.

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)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
Camera
Model
Panasonic GH5s»3680 n 3.2 1620 swivel Y 8000 12.0 n n Panasonic GH5s
Sony A7R III«3686 n 3.0 1440 tilting Y 8000 10.0 n Y Sony A7R III
Canon R« »3690 n 3.2 2100 swivel Y 8000 8.0 n n Canon R
Panasonic G9« »3680 Y 3.0 1040 swivel Y 8000 20.0 n Y Panasonic G9
Panasonic GH5« »3680 n 3.2 1620 swivel Y 8000 12.0 n Y Panasonic GH5
Panasonic FZ300« »1440 n 3.0 1040 swivel Y 4000 12.0 Y Y Panasonic FZ300
Panasonic GH4« »2359 n 3.0 1036 swivel Y 8000 12.0 Y n Panasonic GH4
Panasonic GF5« »- n 3.0 920 fixed Y 4000 4.0 Y n Panasonic GF5
Panasonic GH3« »1746 n 3.0 614 swivel Y 4000 6.0 Y n Panasonic GH3
Panasonic GF3« »- n 3.0 460 fixed Y 4000 3.2 Y n Panasonic GF3
Panasonic G10« »202 n 3.0 460 fixed n 4000 2.6 Y n Panasonic G10
Panasonic G2« »1440 n 3.0 460 swivel Y 4000 2.6 Y n Panasonic G2
Sony A7 III« »2359 n 3.0 922 tilting Y 8000 10.0 n Y Sony A7 III
Sony A9« »3686 n 3.0 1440 tilting Y 8000 20.0 n Y Sony A9
Sony A99 II« »2400 Y 3.0 1229 full-flex n 8000 12.0 n Y Sony A99 II
Sony A7R II« »2400 n 3.0 1229 tilting n 8000 5.0 n Y Sony A7R II
Sony A7S II« »2400 n 3.0 1229 tilting n 8000 5.0 n Y Sony A7S II

One feature that differentiates the A7R III and the GH5s is in-body image stabilization (IBIS). The A7R III reduces the risk of handshake-induced blur with all attached lenses, while the GH5s has to rely on optical image stabilization in OIS-equipped lenses to achieve the same effect.

The GH5s has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the A7R III does not have a selfie-screen.

The reported shutter speed and shutter burst refer to the use of the mechanical shutter. In addition, both cameras feature an electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The GH5s writes its imaging data to SDXC cards, while the A7R III uses SDXC or Memory Stick PRO Duo cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails.

Connectivity comparison: Panasonic GH5s vs Sony A7R III

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 Panasonic Lumix DC-GH5s and Sony Alpha A7R III 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
Panasonic GH5s»YstereomonoYYfull3.1Y-YPanasonic GH5s
Sony A7R III«YstereomonoYYmicro3.1YYYSony A7R III
Canon R« »YstereomonoY-mini3.1Y-YCanon R
Panasonic G9« »YstereomonoYYfull3.0Y-YPanasonic G9
Panasonic GH5« »YstereomonoYYfull3.1Y-YPanasonic GH5
Panasonic FZ300« »YstereomonoY-mini2.0Y--Panasonic FZ300
Panasonic GH4« »YstereomonoYYmicro2.0YY-Panasonic GH4
Panasonic GF5« »-stereomono--mini2.0---Panasonic GF5
Panasonic GH3« »YstereomonoYYmini2.0Y--Panasonic GH3
Panasonic GF3« »-stereomono--mini2.0---Panasonic GF3
Panasonic G10« »Ymono---mini2.0---Panasonic G10
Panasonic G2« »Ystereomono--mini2.0---Panasonic G2
Sony A7 III« »YstereomonoYYmicro3.1YYYSony A7 III
Sony A9« »YstereomonoYYmicro2.0YYYSony A9
Sony A99 II« »YstereomonoYYmicro2.0YYYSony A99 II
Sony A7R II« »YstereomonoYYmicro2.0YY-Sony A7R II
Sony A7S II« »YstereomonoYYmicro2.0YY-Sony A7S II

Both the GH5s and the A7R III are recent models that feature in their makers' current product line-up. The A7R III replaced the earlier Sony A7R II, while the GH5s does not have a direct predecessor.


Review summary: Panasonic GH5s vs Sony A7R III

So how do things add up? Is the Panasonic GH5s better than the Sony A7R III or vice versa? Below is a summary of the relative strengths of each of the two contestants.

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Reasons to prefer the Panasonic Lumix DC-GH5s:

  • Better video: Provides higher movie framerates (4K/60p versus 4K/30p).
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1620k vs 1440k dots).
  • More flexible LCD: Has swivel screen for odd-angle shots in portrait or landscape orientation.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (12 vs 10 flaps/sec) to capture the decisive moment.
  • More solid recording: Has a full-sized HDMI port for a sturdy connection to an external recorder.
  • More affordable: Was introduced into a lower priced segment (22 percent cheaper at launch).

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Advantages of the Sony Alpha A7R III:

  • More detail: Has more megapixels (42.2 vs 9.9MP), which boosts linear resolution by 109%.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Better video autofocus: Features on-sensor phase-detection for more confident movie autofocus.
  • More compact: Is smaller (127x96mm vs 139x98mm) and will fit more readily into a bag.
  • Longer lasting: Gets more shots (650 versus 440) out of a single battery charge.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.

If the count of individual advantages (bullet points above) is taken as a guide, the GH5s comes out slightly ahead of the A7R III (8 : 7 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.

GH5s 08:07 A7R III

In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it says nothing about, for example, the handling, responsiveness, and overall imaging quality of the GH5s and the A7R III in practical situations. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.

Expert reviews: Panasonic GH5s vs Sony A7R III

This is why expert reviews are important. The adjacent table relays the overall verdicts of several of the most popular camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). You can find the full text of the reviews by clicking on the site logo in the table header.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
Panasonic GH5s»-84/1004.5/5-4.5/5 Jan 2018 2,499 i i Panasonic GH5s
Sony A7R III«HiRec90/1004.5/55/55/5 Oct 2017 3,199 i i Sony A7R III
Canon R« »rev79/1004.5/54/54/5 Sep 2018 2,299 i i Canon R
Panasonic G9« »HiRec85/1005/55/55/5 Nov 2017 1,699 i i Panasonic G9
Panasonic GH5« »HiRec85/1004.5/55/55/5 Jan 2017 1,999 i i Panasonic GH5
Panasonic FZ300« »HiRec-4.5/54.5/54.5/5 Jul 2015 599 i i Panasonic FZ300
Panasonic GH4« »HiRec85/1005/55/55/5 Feb 2014 1,499- i Panasonic GH4
Panasonic GF5« »--4.5/54/54.5/5 Apr 2012 499- i Panasonic GF5
Panasonic GH3« »HiRec79/1004.5/55/54.5/5 Sep 2012 1,299- i Panasonic GH3
Panasonic GF3« »82/10071/1004.5/54.5/54/5 Jun 2011 549- i Panasonic GF3
Panasonic G10« »-70/1004/5-4/5 Mar 2010 499- i Panasonic G10
Panasonic G2« »-72/1004/54/54.5/5 Mar 2010 599- i Panasonic G2
Sony A7 III« »HiRec89/1005/55/55/5 Feb 2018 1,999 i i Sony A7 III
Sony A9« »HiRec89/1005/55/55/5 Apr 2017 4,499 i i Sony A9
Sony A99 II« »-85/1004.5/54.5/54.5/5 Sep 2016 3,199 i i Sony A99 II
Sony A7R II« »HiRec90/1005/54.5/55/5 Jun 2015 3,199- i Sony A7R II
Sony A7S II« »Rec-4.5/55/55/5 Sep 2015 2,999 i i Sony A7S II

The above review scores should be interpreted with care, though. The assessments were made in relation to similar cameras of the same technological generation. Hence, a score should always be seen in the context of the camera's market launch date and its price, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

 

Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Panasonic GH5s vs Sony A7R III

    Camera and Lens Specs
    Camera Model Panasonic GH5s Sony A7R III
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Micro Four Thirds lenses Sony E mount lenses
    Launch Date January 2018 October 2017
    Launch Price USD 2499 USD 3199
    Sensor Specs
    Sensor Technology CMOS BSI-CMOS
    Sensor Format Four Thirds Sensor Full Frame Sensor
    Sensor Size 17.3 x 13.0 mm 35.9 x 13.0 mm
    MP Resolution 9.9 Megapixels 42.2 Megapixels
    Image Resolution 3680 x 2700 pixels 7952 x 5304 pixels
    Pixel Size 4.77 μm 4.52 μm
    Movie Capability 4K/60p Video 4K/30p Video
    ISO Setting 160-51200 ISO 100-32000 ISO
    ISO Boost 80-204800 ISO 50-102400 ISO
    Screen Specs
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Resolution 3680k dots 3686k dots
    Rear LCD Size 3.2 inch 3.0 inch
    LCD Resolution 1620k dots 1440k dots
    LCD Attachment Swivel screen Tilting screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs
    Maximum Shutter Speed 1/8000s 1/8000s
    Continuous Shooting 12 shutter flaps/s 10 shutter flaps/s
    Silent ShootingElectronic ShutterElectronic Shutter
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium SDXC cards MS or SDXC cards
    Connectivity Specs
    USB Connector USB 3.1 USB 3.1
    HDMI Port full HDMI micro HDMI
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Bluetooth Support Bluetooth built-in Bluetooth built-in
    Body Specs
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type DMW-BLF19 power pack NP-FZ100 power pack
    Battery Life440 shots per charge650 shots per charge
    Body Dimensions 139 x 98 x 87 mm
    (5.5 x 3.9 x 3.4 in)
    127 x 96 x 74 mm
    (5.0 x 3.8 x 2.9 in)
    Camera Weight 660 g (23.3 oz) 650 g (22.9 oz)

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