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Panasonic GX850 vs Sony A7 IV

The Panasonic Lumix DMC-GX850 (called Panasonic GX800 in some regions) and the Sony Alpha A7 IV are two digital cameras that were officially introduced, respectively, in January 2017 and October 2021. Both the GX850 and the A7 IV are mirrorless interchangeable lens cameras that are based on a Four Thirds (GX850) and a full frame (A7 IV) sensor. The Panasonic has a resolution of 15.8 megapixels, whereas the Sony provides 32.7 MP.

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

Headline Specifications
Panasonic GX850
versus
Sony A7 IV
Panasonic GX850   Sony A7 IV
Mirrorless system camera Mirrorless system camera
Micro Four Thirds lenses Sony E mount lenses
15.8 MP – Four Thirds sensor 32.7 MP – Full Frame sensor
4K/30p Video 4K/60p Video
ISO 200-25,600 ISO 100-51,200 (50 - 204,800)
No viewfinder, LCD framing Electronic viewfinder (3686k dots)
3.0" LCD – 1040k dots 3.0" LCD – 1037k dots
Tilting touchscreen Swivel touchscreen
10 shutter flaps per second 10 shutter flaps per second
Lens stabilization onlyIn-body stabilization
not weather sealedWeathersealed body
210 shots per battery charge580 shots per battery charge
107 x 65 x 33 mm, 269 g 131 x 96 x 80 mm, 659 g
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Check GX850 offers at
ebay.com
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Check A7 IV price at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DMC-GX850 and the Sony Alpha A7 IV? 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.

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Body comparison

The physical size and weight of the Panasonic GX850 and the Sony A7 IV are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All size dimensions are rounded to the nearest millimeter.

The GX850 can be obtained in three different colors (black, silver, red), while the A7 IV is only available in black.

Size Panasonic GX850 vs Sony A7 IV
Compare GX850 versus A7 IV top
Comparison GX850 or A7 IV rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7 IV is considerably larger (81 percent) than the Panasonic GX850. Moreover, the A7 IV is substantially heavier (145 percent) than the GX850. It is noteworthy in this context that the A7 IV is splash and dust-proof, while the GX850 does not feature any corresponding weather-sealing.

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 (GX850) and the Sony FE Lens Catalog (A7 IV). 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 GX850 gets 210 shots out of its Panasonic DMW-BLH7 battery, while the A7 IV can take 580 images on a single charge of its Sony NP-FZ100 power pack. The power pack in the A7 IV can be charged via the USB port, which can be very convenient when travelling.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

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Body Specifications
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Panasonic GX850 107 mm 65 mm 33 mm 269 g 210 n Jan 2017 549ebay.com
2.
 
Sony A7 IV 131 mm 96 mm 80 mm 659 g 580 Y Oct 2021 2,499 amazon.com
3.
 
Olympus E-PL5 111 mm 64 mm 38 mm 325 g 360 n Sep 2012 599ebay.com
4.
 
Olympus E-PM2 110 mm 64 mm 34 mm 269 g 360 n Sep 2012 499ebay.com
5.
 
Panasonic GF7 107 mm 65 mm 33 mm 266 g 230 n Jan 2015 499ebay.com
6.
 
Panasonic G6 122 mm 85 mm 71 mm 390 g 340 n Apr 2013 599ebay.com
7.
 
Panasonic GF6 111 mm 65 mm 38 mm 323 g 340 n Apr 2013 499ebay.com
8.
 
Panasonic G5 120 mm 83 mm 71 mm 396 g 320 n Jul 2012 599ebay.com
9.
 
Panasonic GF5 108 mm 67 mm 37 mm 267 g 360 n Apr 2012 499ebay.com
10.
 
Panasonic G3 115 mm 84 mm 47 mm 336 g 270 n May 2011 599ebay.com
11.
 
Panasonic GF3 108 mm 67 mm 32 mm 264 g 300 n Jun 2011 549ebay.com
12.
 
Panasonic GX1 116 mm 68 mm 39 mm 318 g 320 n Nov 2011 699ebay.com
13.
 
Sony A7R V 131 mm 97 mm 82 mm 723 g 530 Y Oct 2022 3,899 amazon.com
14.
 
Sony A1 129 mm 97 mm 81 mm 737 g 530 Y Jan 2021 6,499 amazon.com
15.
 
Sony A7R IIIA 127 mm 96 mm 74 mm 650 g 650 Y Apr 2021 3,199 amazon.com
16.
 
Sony A7S III 127 mm 97 mm 81 mm 699 g 600 Y Jul 2020 3,499 amazon.com
17.
 
Sony A7 III 127 mm 96 mm 74 mm 650 g 610 Y Feb 2018 1,999 amazon.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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Any camera decision will naturally be influenced heavily by the price. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The GX850 was launched at a markedly lower price (by 78 percent) than the A7 IV, which puts it into a different market segment. 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

The size of the sensor inside a digital camera is one of the key determinants of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Panasonic GX850 features a Four Thirds sensor and the Sony A7 IV a full frame sensor. The sensor area in the A7 IV is 281 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 GX850 has a native 4:3 aspect ratio, while the one in the A7 IV offers a 3:2 aspect.

Panasonic GX850 and Sony A7 IV sensor measures

With 32.7MP, the A7 IV offers a higher resolution than the GX850 (15.8MP), but the A7 IV nevertheless has larger individual pixels (pixel pitch of 5.12μm versus 3.77μm for the GX850) due to its larger sensor. Moreover, the A7 IV is a much more recent model (by 4 years and 9 months) than the GX850, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. 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 resolution advantage of the Sony A7 IV implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7 IV for good quality output (200 dots per inch) amounts to 35 x 23.4 inches or 89 x 59.3 cm, for very good quality (250 dpi) 28 x 18.7 inches or 71.2 x 47.5 cm, and for excellent quality (300 dpi) 23.4 x 15.6 inches or 59.3 x 39.6 cm. The corresponding values for the Panasonic GX850 are 23 x 17.2 inches or 58.3 x 43.8 cm for good quality, 18.4 x 13.8 inches or 46.7 x 35 cm for very good quality, and 15.3 x 11.5 inches or 38.9 x 29.2 cm for excellent quality prints.

The A7 IV has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Panasonic Lumix DMC-GX850 has a native sensitivity range from ISO 200 to ISO 25600, which can be extended to ISO 100-25600. The corresponding ISO settings for the Sony Alpha A7 IV are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 50-204800.

In terms of underlying technology, the GX850 is build around a CMOS sensor, while the A7 IV uses a BSI-CMOS imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

GX850 versus A7 IV MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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"). Of the two cameras under consideration, the A7 IV offers substantially better image quality than the GX850 (overall score 24 points higher). The advantage is based on 2.2 bits higher color depth, 1.4 EV in additional dynamic range, and 2.5 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

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Sensor Characteristics
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Panasonic GX850 Four Thirds 15.8 4592 34484K/30p23.213.358673
2.
 
Sony A7 IV Full Frame 32.7 7008 46724K/60p25.414.7337997
3.
 
Olympus E-PL5 Four Thirds 15.9 4608 34561080/30p22.812.388972
4.
 
Olympus E-PM2 Four Thirds 15.9 4608 34561080/30p22.712.293272
5.
 
Panasonic GF7 Four Thirds 15.8 4592 34481080/60p22.712.387470
6.
 
Panasonic G6 Four Thirds 15.9 4608 34561080/60p21.311.563961
7.
 
Panasonic GF6 Four Thirds 15.8 4592 34481080/60i20.710.662254
8.
 
Panasonic G5 Four Thirds 15.9 4608 34561080/60p21.411.661861
9.
 
Panasonic GF5 Four Thirds 12.0 4000 30001080/60i20.510.057350
10.
 
Panasonic G3 Four Thirds 15.8 4592 34481080/60i21.010.666756
11.
 
Panasonic GF3 Four Thirds 12.0 4000 30001080/60i20.610.145950
12.
 
Panasonic GX1 Four Thirds 15.8 4592 34481080/60p20.810.670355
13.
 
Sony A7R V Full Frame 60.2 9504 63368k/24p26.514.83187100
14.
 
Sony A1 Full Frame 49.8 8640 57608k/30p25.914.5316398
15.
 
Sony A7R IIIA Full Frame 42.2 7952 53044K/30p26.014.73523100
16.
 
Sony A7S III Full Frame 12.0 4240 28324K/120p23.713.9252086
17.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096
Note: DXO values in italics represent estimates based on sensor size and age.
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Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the A7 IV provides a faster frame rate than the GX850. It can shoot movie footage at 4K/60p, while the Panasonic is limited to 4K/30p.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the A7 IV has an electronic viewfinder (3686k dots), which can be very helpful when shooting in bright sunlight. In contrast, the GX850 relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Panasonic GX850 and Sony A7 IV along with similar information for a selection of comparators.

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Core Features
# image Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Panasonic GX850none n3.0 / 1040 tilting Y 1/500s 10.0/s Y n
2.
 
Sony A7 IV3686 n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
3.
 
Olympus E-PL5optional n3.0 / 460 tilting Y 1/4000s 8.0/s n Y
4.
 
Olympus E-PM2optional n3.0 / 460 fixed Y 1/4000s 8.0/s n Y
5.
 
Panasonic GF7none n3.0 / 1040 tilting Y 1/500s 5.8/s Y n
6.
 
Panasonic G61440 n3.0 / 1036 swivel Y 1/4000s 7.0/s Y n
7.
 
Panasonic GF6none n3.0 / 1040 tilting Y 1/4000s 4.2/s Y n
8.
 
Panasonic G51440 n3.0 / 920 swivel Y 1/4000s 6.0/s Y n
9.
 
Panasonic GF5none n3.0 / 920 fixed Y 1/4000s 4.0/s Y n
10.
 
Panasonic G31440 n3.0 / 460 swivel Y 1/4000s 4.0/s Y n
11.
 
Panasonic GF3none n3.0 / 460 fixed Y 1/4000s 3.2/s Y n
12.
 
Panasonic GX1optional n3.0 / 460 fixed Y 1/4000s 4.2/s Y n
13.
 
Sony A7R V9440 n3.2 / 2100 full-flex Y 1/8000s 10.0/s n Y
14.
 
Sony A19437 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
15.
 
Sony A7R IIIA3686 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
16.
 
Sony A7S III9440 n3.0 / 1440 swivel Y 1/8000s 10.0/s n Y
17.
 
Sony A7 III2359 n3.0 / 922 tilting Y 1/8000s 10.0/s n Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One difference between the cameras concerns the presence of an on-board flash. The GX850 has one, while the A7 IV does not. While the built-in flash of the GX850 is not very powerful, it can at times be useful as a fill-in light.

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 reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, both cameras under consideration 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 Panasonic GX850 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.

The GX850 writes its imaging data to SDXC cards, while the A7 IV uses CFexpress (type A) or SDXC cards. The A7 IV features dual card slots, which can be very useful in case a memory card fails. In contrast, the GX850 only has one slot. The A7 IV supports UHS-II cards (on both slots), while the GX850 can use UHS-I cards.

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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 Panasonic Lumix DMC-GX850 and Sony Alpha A7 IV and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Panasonic GX850-stereo / mono--micro2.0Y--
2.
 
Sony A7 IVYstereo / monoYYfull3.2Y-Y
3.
 
Olympus E-PL5Ystereo / mono--mini2.0---
4.
 
Olympus E-PM2Ystereo / mono--mini2.0---
5.
 
Panasonic GF7-stereo / mono--micro2.0YY-
6.
 
Panasonic G6Ystereo / monoY-mini2.0YY-
7.
 
Panasonic GF6-stereo / mono--mini2.0YY-
8.
 
Panasonic G5Ystereo / mono--mini2.0---
9.
 
Panasonic GF5-stereo / mono--mini2.0---
10.
 
Panasonic G3Ystereo / mono--mini2.0---
11.
 
Panasonic GF3-stereo / mono--mini2.0---
12.
 
Panasonic GX1Ystereo / mono--mini2.0---
13.
 
Sony A7R VYstereo / monoYYfull3.2Y-Y
14.
 
Sony A1Ystereo / monoYYfull3.2Y-Y
15.
 
Sony A7R IIIAYstereo / monoYYmicro3.2YYY
16.
 
Sony A7S IIIYstereo / monoYYfull3.2Y-Y
17.
 
Sony A7 IIIYstereo / monoYYmicro3.1YYY
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It is notable that the A7 IV has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The GX850 lacks such a headphone port.

The A7 IV is a recent model that features in the current product line-up of Sony. In contrast, the GX850 has been discontinued (but can be found pre-owned on ebay). There has not been a direct replacement model for the GX850 from Panasonic. Further information on the features and operation of the GX850 and A7 IV can be found, respectively, in the Panasonic GX850 Manual (free pdf) or the online Sony A7 IV Manual.

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Review summary

So how do things add up? Which of the two cameras – the Panasonic GX850 or the Sony A7 IV – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.

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Advantages of the Panasonic Lumix DMC-GX850:

  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More compact: Is smaller (107x65mm vs 131x96mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 390g or 59 percent) and hence easier to carry around.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced into a lower priced category (78 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in January 2017).

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Arguments in favor of the Sony Alpha A7 IV:

  • More detail: Has more megapixels (32.7 vs 15.8MP), which boosts linear resolution by 47%.
  • Better image quality: Scores substantially higher (24 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (2.2 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (1.4 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (2.5 stops ISO advantage).
  • Better video: Provides higher movie framerates (4K/60p versus 4K/30p).
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/500s) to freeze action.
  • Longer lasting: Gets more shots (580 versus 210) out of a single battery charge.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • Faster data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
  • More solid recording: Has a full-sized HDMI port for a sturdy connection to an external recorder.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More modern: Reflects 4 years and 9 months of technical progress since the GX850 launch.

If the count of individual advantages (bullet points above) is taken as a guide, the A7 IV is the clear winner of the contest (23 : 6 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera. A professional sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

GX850 06:23 A7 IV

How about other alternatives? Do the specifications of the Panasonic GX850 and the Sony A7 IV place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera listing 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 remains incomplete and does no justice, for example, to the way the GX850 or the A7 IV perform in practice. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews

This is where reviews by experts come in. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). 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.

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Expert Camera Reviews
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Panasonic GX850..+..76/1004.5/54.5/5 Jan 2017 549ebay.com
2.
 
Sony A7 IV5/5+ +4.5/589/1004.5/54.5/5 Oct 2021 2,499 amazon.com
3.
 
Olympus E-PL53/5+ +....4.5/54.5/5 Sep 2012 599ebay.com
4.
 
Olympus E-PM23/5....77/1005/54.5/5 Sep 2012 499ebay.com
5.
 
Panasonic GF74/5+....4.5/54.5/5 Jan 2015 499ebay.com
6.
 
Panasonic G64/5+ +....5/54.5/5 Apr 2013 599ebay.com
7.
 
Panasonic GF6..+ +....4.5/54.5/5 Apr 2013 499ebay.com
8.
 
Panasonic G53/5+ +....4.5/54.5/5 Jul 2012 599ebay.com
9.
 
Panasonic GF53/5......4.5/54.5/5 Apr 2012 499ebay.com
10.
 
Panasonic G33/5+ +..75/1004.5/55/5 May 2011 599ebay.com
11.
 
Panasonic GF33/582/100..71/1004.5/54/5 Jun 2011 549ebay.com
12.
 
Panasonic GX13/5+..77/1004.5/54.5/5 Nov 2011 699ebay.com
13.
 
Sony A7R V5/5+ +4.5/592/100.... Oct 2022 3,899 amazon.com
14.
 
Sony A15/5o4.5/593/1004.5/55/5 Jan 2021 6,499 amazon.com
15.
 
Sony A7R IIIA..+ +4/590/1004.5/55/5 Apr 2021 3,199 amazon.com
16.
 
Sony A7S III4.5/5+ +5/591/1004.5/55/5 Jul 2020 3,499 amazon.com
17.
 
Sony A7 III..+ +4.5/589/1005/55/5 Feb 2018 1,999 amazon.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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Check GX850 offers at
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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 a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications: Panasonic GX850 vs Sony A7 IV

    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 Panasonic GX850 Sony A7 IV
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Micro Four Thirds lenses Sony E mount lenses
    Launch Date January 2017 October 2021
    Launch Price USD 549 USD 2,499
    Sensor Specs Panasonic GX850 Sony A7 IV
    Sensor Technology CMOS BSI-CMOS
    Sensor Format Four Thirds Sensor Full Frame Sensor
    Sensor Size 17.3 x 13.0 mm 35.9 x 23.9 mm
    Sensor Area 224.9 mm2 858.01 mm2
    Sensor Diagonal 21.6 mm 43.1 mm
    Crop Factor 2.0x 1.0x
    Sensor Resolution 15.8 Megapixels 32.7 Megapixels
    Image Resolution 4592 x 3448 pixels 7008 x 4672 pixels
    Pixel Pitch 3.77 μm 5.12 μm
    Pixel Density 7.04 MP/cm2 3.82 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 4K/30p Video 4K/60p Video
    ISO Setting 200 - 25,600 ISO 100 - 51,200 ISO
    ISO Boost 100 - 25,600 ISO 50 - 204,800 ISO
    Image Processor Venus BIONZ XR
    DXO Sensor Quality (score) 73 97
    DXO Color Depth (bits) 23.2 25.4
    DXO Dynamic Range (EV) 13.3 14.7
    DXO Low Light (ISO) 586 3379
    Screen Specs Panasonic GX850 Sony A7 IV
    Viewfinder Type no viewfinder Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.78x
    Viewfinder Resolution 3686k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1040k dots 1037k dots
    LCD Attachment Tilting screen Swivel screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Panasonic GX850 Sony A7 IV
    Focus System Contrast-detect AF On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/500s 1/8000s
    Continuous Shooting 10 shutter flaps/s 10 shutter flaps/s
    Electronic Shutterup to 1/16000sYES
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDXC cards CFexA or SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support UHS-I Dual UHS-II
    Connectivity Specs Panasonic GX850 Sony A7 IV
    External Flash no Hotshoe Hotshoe
    USB Connector USB 2.0 USB 3.2
    HDMI Port micro HDMI full HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Panasonic GX850 Sony A7 IV
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Panasonic DMW-BLH7 Sony NP-FZ100
    Battery Life (CIPA)210 shots per charge580 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 107 x 65 x 33 mm
    (4.2 x 2.6 x 1.3 in)
    131 x 96 x 80 mm
    (5.2 x 3.8 x 3.1 in)
    Camera Weight 269 g (9.5 oz) 659 g (23.2 oz)
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