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Panasonic GX85 vs Sony A99 II

The Panasonic Lumix DMC-GX85 (called Panasonic GX80 in some regions) and the Sony Alpha ALT-A99 II are two digital cameras that were announced, respectively, in April 2016 and September 2016. The GX85 is a mirrorless interchangeable lens camera, while the A99 II is a DSLR. The cameras are based on a Four Thirds (GX85) and a full frame (A99 II) sensor. The Panasonic has a resolution of 15.8 megapixels, whereas the Sony provides 42.2 MP.

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

Headline Specifications
Panasonic GX85 versus Sony A99 II
Panasonic GX85 Sony A99 II
Mirrorless system camera Digital single lens reflex
Micro Four Thirds lenses Sony A mount lenses
15.8 MP, Four Thirds Sensor 42.2 MP, Full Frame Sensor
4K/30p Video 4K/30p Video
ISO 200-25,600 ISO 100-25,600
Electronic viewfinder (2765k dots) Electronic viewfinder (2400k dots)
3.0 LCD, 1040k dots 3.0 LCD, 1229k dots
Tilting touchscreen Fully flexible screen (no touchscreen)
8 shutter flaps per second 12 shutter flaps per second
In-body stabilizationIn-body stabilization
not weather sealedWeathersealed body
290 shots per battery charge490 shots per battery charge
122 x 71 x 44 mm, 426 g 143 x 104 x 76 mm, 849 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DMC-GX85 and the Sony Alpha ALT-A99 II? 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

An illustration of the physical size and weight of the Panasonic GX85 and the Sony A99 II is provided 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 GX85 can be obtained in two different colors (black, silver), while the A99 II is only available in black.

Size Panasonic GX85 vs Sony A99 II
Compare GX85 versus A99 II top
Comparison GX85 or A99 II rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A99 II is considerably larger (72 percent) than the Panasonic GX85. Moreover, the A99 II is substantially heavier (99 percent) than the GX85. It is noteworthy in this context that the A99 II is splash and dust-proof, while the GX85 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. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the GX85 gets 290 shots out of its DMW-BLG10 battery, while the A99 II can take 490 images on a single charge of its NP-FM500H 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.

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Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life 1
Weather
Sealing
Camera
Launch 2
Launch
Price (USD)
Street
Price
 
Panasonic GX85 122 mm 71 mm 44 mm 426 g 290 n Apr 2016 799 i
 
Sony A99 II 143 mm 104 mm 76 mm 849 g 490 Y Sep 2016 3,199 i
 
Canon 5DS 152 mm 116 mm 76 mm 930 g 700 Y Feb 2015 3,699 i
 
Olympus E-PL8 115 mm 67 mm 38 mm 357 g 350 n Sep 2016 549i
 
Olympus E-M10 II 120 mm 83 mm 47 mm 390 g 320 n Aug 2015 649i
 
Olympus E-M10 119 mm 82 mm 46 mm 396 g 320 n Jan 2014 699i
 
Panasonic GX9 124 mm 72 mm 47 mm 407 g 260 n Feb 2018 849 i
 
Panasonic G85 128 mm 89 mm 74 mm 505 g 330 Y Sep 2016 899i
 
Panasonic G7 125 mm 86 mm 77 mm 410 g 350 n May 2015 649i
 
Panasonic GX8 133 mm 78 mm 63 mm 487 g 330 Y Jul 2015 1,199i
 
Panasonic GM5 99 mm 60 mm 36 mm 211 g 220 n Sep 2014 749i
 
Panasonic GX7 123 mm 71 mm 55 mm 402 g 350 n Aug 2013 999i
 
Panasonic GH2 124 mm 90 mm 76 mm 442 g 330 n Sep 2010 899i
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199i
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 3,199i
 
Sony A99 147 mm 111 mm 78 mm 812 g 500 Y Sep 2012 2,799i
 
Sony A900 156 mm 117 mm 82 mm 895 g 880 Y Sep 2008 2,999i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.

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 GX85 was launched at a markedly lower price (by 75 percent) than the A99 II, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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. 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 tend to be more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Panasonic GX85 features a Four Thirds sensor and the Sony A99 II a full frame sensor. The sensor area in the A99 II 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 GX85 has a native 4:3 aspect ratio, while the one in the A99 II offers a 3:2 aspect.

Panasonic GX85 and Sony A99 II sensor measures

With 42.2MP, the A99 II offers a higher resolution than the GX85 (15.8MP), but the A99 II nevertheless has larger individual pixels (pixel pitch of 4.52μm versus 3.77μm for the GX85) due to its larger sensor. Moreover, the A99 II is a somewhat more recent model (by 5 months) than the GX85, and its sensor might 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 A99 II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A99 II for good quality output (200 dots per inch) amounts to 39.8 x 26.5 inches or 101 x 67.4 cm, for very good quality (250 dpi) 31.8 x 21.2 inches or 80.8 x 53.9 cm, and for excellent quality (300 dpi) 26.5 x 17.7 inches or 67.3 x 44.9 cm. The corresponding values for the Panasonic GX85 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 A99 II has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Panasonic Lumix DMC-GX85 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 ALT-A99 II are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-25600.

GX85 versus A99 II 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 A99 II offers substantially better image quality than the GX85 (overall score 21 points higher). The advantage is based on 2.5 bits higher color depth, 0.8 EV in additional dynamic range, and 1.8 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

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Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
 
Panasonic GX85 Four Thirds 15.8 4592 34484K/30p22.912.666271
 
Sony A99 II Full Frame 42.2 7952 53044K/30p25.413.4231792
 
Canon 5DS Full Frame 50.3 8688 57921080/30p24.712.4238187
 
Olympus E-PL8 Four Thirds 15.9 4608 34561080/30p........
 
Olympus E-M10 II Four Thirds 15.9 4608 34561080/60p23.112.584273
 
Olympus E-M10 Four Thirds 15.9 4608 34561080/30p22.812.388472
 
Panasonic GX9 Four Thirds 20.2 5184 38884K/30p........
 
Panasonic G85 Four Thirds 15.8 4592 34484K/30p22.812.565671
 
Panasonic G7 Four Thirds 15.8 4592 34484K/30p........
 
Panasonic GX8 Four Thirds 20.2 5184 38884K/30p23.512.680675
 
Panasonic GM5 Four Thirds 15.8 4592 34481080/60p22.111.772166
 
Panasonic GX7 Four Thirds 15.8 4592 34481080/60p22.612.271870
 
Panasonic GH2 Four Thirds 15.9 4608 34561080/60i21.211.365560
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
 
Sony A99 Full Frame 24.0 6000 40001080/60p25.014.0155589
 
Sony A900 Full Frame 24.4 6048 4032none23.712.3143179

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, and both provide the same movie specifications (4K/30p).

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the GX85 offers a higher resolution than the one in the A99 II (2765k vs 2400k dots). The table below summarizes some of the other core capabilities of the Panasonic GX85 and Sony A99 II in connection with corresponding information for a sample of similar cameras.

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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
 
Panasonic GX852765 n 3.0 1040 tilting Y 1/4000s 8.0 Y Y
 
Sony A99 II2400 Y 3.0 1229 full-flex n 1/8000s 12.0 n Y
 
Canon 5DSoptical Y 3.2 1040 fixed n 1/8000s 5.0 n n
 
Olympus E-PL8optional n 3.0 1037 tilting Y 1/4000s 8.0 n Y
 
Olympus E-M10 II2360 n 3.0 1040 tilting Y 1/4000s 8.0 Y Y
 
Olympus E-M101440 n 3.0 1037 tilting Y 1/4000s 8.0 Y Y
 
Panasonic GX92760 n 3.0 1240 tilting Y 1/4000s 9.0 Y Y
 
Panasonic G852360 n 3.0 1040 swivel Y 1/4000s 9.0 Y Y
 
Panasonic G72360 n 3.0 1040 swivel Y 1/4000s 7.0 Y n
 
Panasonic GX82360 n 3.0 1040 swivel Y 1/8000s 10.0 n Y
 
Panasonic GM51166 n 3.0 921 fixed Y 1/500s 5.8 n n
 
Panasonic GX72760 n 3.0 1040 tilting Y 1/8000s 5.0 Y Y
 
Panasonic GH21534 n 3.0 460 swivel n 1/4000s 3.0 Y n
 
Sony A7R III3686 n 3.0 1440 tilting Y 1/8000s 10.0 n Y
 
Sony A7R II2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y
 
Sony A992359 Y 3.0 1229 full-flex n 1/8000s 6.0 n Y
 
Sony A900optical Y 3.0 922 fixed n 1/8000s 5.0 n Y

One difference between the cameras concerns the presence of an on-board flash. The GX85 has one, while the A99 II does not. While the built-in flash of the GX85 is not very powerful, it can at times be useful as a fill-in light.

The A99 II has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the GX85 does not have a selfie-screen.

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, the GX85 is one of those camera that have an additional 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 GX85 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 GX85 writes its imaging data to SDXC cards, while the A99 II uses SDXC or Memory Stick PRO Duo cards. The A99 II features dual card slots, which can be very useful in case a memory card fails. In contrast, the GX85 only has one slot. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

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-GX85 and Sony Alpha ALT-A99 II and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
 
Panasonic GX85Ystereomono--micro2.0Y--
 
Sony A99 IIYstereomonoYYmicro2.0YYY
 
Canon 5DSYmonomonoY-mini3.0---
 
Olympus E-PL8Ystereomono--micro2.0Y--
 
Olympus E-M10 IIYstereomono--micro2.0Y--
 
Olympus E-M10Ystereomono--micro2.0Y--
 
Panasonic GX9Ystereomono--micro2.0Y-Y
 
Panasonic G85YstereomonoY-micro2.0Y--
 
Panasonic G7YstereomonoY-micro2.0Y--
 
Panasonic GX8YstereomonoY-micro2.0YY-
 
Panasonic GM5Ystereomono--micro2.0Y--
 
Panasonic GX7Ystereomono--mini2.0YY-
 
Panasonic GH2YstereomonoY-mini2.0---
 
Sony A7R IIIYstereomonoYYmicro3.1YYY
 
Sony A7R IIYstereomonoYYmicro2.0YY-
 
Sony A99YstereomonoYYmini2.0---
 
Sony A900Y----mini2.0---

It is notable that the A99 II has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The GX85 lacks such a headphone port.

Studio photographers will appreciate that the Sony A99 II (unlike the GX85) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the GX85 and the A99 II are recent models that are part of the current product line-up. The GX85 replaced the earlier Panasonic GX7, while the A99 II does not have a direct predecessor. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Panasonic and Sony websites.

Review summary

So how do things add up? Is the Panasonic GX85 better than the Sony A99 II or vice versa? The listing below highlights the relative strengths of the two models.

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Advantages of the Panasonic Lumix DMC-GX85:

  • More detailed viewfinder: Has higher resolution electronic viewfinder (2765k vs 2400k dots).
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More compact: Is smaller (122x71mm vs 143x104mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 423g or 50 percent) and hence easier to carry around.
  • More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced into a lower priced category (75 percent cheaper at launch).
  • More heavily discounted: Has been on the market for longer (launched in April 2016).

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Reasons to prefer the Sony Alpha ALT-A99 II:

  • More detail: Has more megapixels (42.2 vs 15.8MP), which boosts linear resolution by 66%.
  • Better image quality: Scores substantially higher (21 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (2.5 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (0.8 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (1.8 stops ISO advantage).
  • 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.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.70x).
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • More detailed LCD: Has a higher resolution rear screen (1229k vs 1040k dots).
  • More flexible LCD: Has a full-flex 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 shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (12 vs 8 flaps/sec) to capture the decisive moment.
  • Longer lasting: Gets more shots (490 versus 290) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More modern: Was introduced somewhat (5 months) more recently.

If the count of individual advantages (bullet points above) is taken as a guide, the A99 II is the clear winner of the contest (22 : 10 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

GX85 10:22 A99 II

How about other alternatives? Do the specifications of the Panasonic GX85 and the Sony A99 II place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the GX85 and the A99 II in practical situations. 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 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.

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Review Scores
  Camera
Model
camera
  labs  
dp
review  
ephoto
  zine  
imaging
resource
photography
  blog  
Camera
Launch
Launch
Price (USD)
Street
Price
 
Panasonic GX85+ +82/1005/54.5/55/5 Apr 2016 799 i
 
Sony A99 II..85/1004.5/54.5/54.5/5 Sep 2016 3,199 i
 
Canon 5DS+83/1004.5/55/54.5/5 Feb 2015 3,699 i
 
Olympus E-PL8....4.5/5..4/5 Sep 2016 549i
 
Olympus E-M10 II+ +80/1005/55/55/5 Aug 2015 649i
 
Olympus E-M10..80/1005/54.5/55/5 Jan 2014 699i
 
Panasonic GX9+84/1004.5/54.5/54.5/5 Feb 2018 849 i
 
Panasonic G85+ +84/1005/54.5/54.5/5 Sep 2016 899i
 
Panasonic G7+ +80/1005/54.5/54.5/5 May 2015 649i
 
Panasonic GX8+82/1004.5/55/54.5/5 Jul 2015 1,199i
 
Panasonic GM5+77/1005/55/54.5/5 Sep 2014 749i
 
Panasonic GX7+79/1005/54.5/55/5 Aug 2013 999i
 
Panasonic GH2+ +79/1004.5/54.5/55/5 Sep 2010 899i
 
Sony A7R III+ +90/1004.5/55/55/5 Oct 2017 3,199i
 
Sony A7R II+ +90/1005/54.5/55/5 Jun 2015 3,199i
 
Sony A99..84/1004.5/5o4.5/5 Sep 2012 2,799i
 
Sony A900+ ++ +4.5/54/55/5 Sep 2008 2,999i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, 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 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.

Panasonic GX85:
Check Amazon price
Sony A99 II:
Check Amazon price

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: Panasonic GX85 vs Sony A99 II

    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 GX85 Sony A99 II
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Micro Four Thirds lenses Sony A mount lenses
    Launch Date April 2016 September 2016
    Launch Price USD 799 USD 3,199
    Sensor Specs Panasonic GX85 Sony A99 II
    Sensor Technology CMOS BSI-CMOS
    Sensor Format Four Thirds Sensor Full Frame Sensor
    Sensor Size 17.3 x 13.0 mm 35.9 x 24.0 mm
    Sensor Area 224.9 mm2 861.6 mm2
    Sensor Diagonal 21.6 mm 43.2 mm
    Crop Factor 2.0x 1.0x
    Sensor Resolution 15.8 Megapixels 42.2 Megapixels
    Image Resolution 4592 x 3448 pixels 7952 x 5304 pixels
    Pixel Pitch 3.77 μm 4.52 μm
    Pixel Density 7.04 MP/cm2 4.90 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 4K/30p Video 4K/30p Video
    ISO Setting 200 - 25,600 ISO 100 - 25,600 ISO
    ISO Boost 100 - 25,600 ISO 50 - 25,600 ISO
    Image Processor Venus BIONZ X
    DXO Sensor Quality (score) 71 92
    DXO Color Depth (bits) 22.9 25.4
    DXO Dynamic Range (EV) 12.6 13.4
    DXO Low Light (ISO) 662 2317
    Screen Specs Panasonic GX85 Sony A99 II
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.70x 0.78x
    Viewfinder Resolution 2765k dots 2400k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1040k dots 1229k dots
    LCD Attachment Tilting screen Fully flexible screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Panasonic GX85 Sony A99 II
    Focus System Contrast-detect AF Phase-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 8 shutter flaps/s 12 shutter flaps/s
    Electronic Shutterup to 1/16000sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash Build-in Flash no On-Board Flash
    Storage Medium SDXC cards MS or SDXC cards
    Second Storage Option Single card slot Dual card slots
    UHS card support UHS-I UHS-I
    Connectivity Specs Panasonic GX85 Sony A99 II
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI micro HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Panasonic GX85 Sony A99 II
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type DMW-BLG10 NP-FM500H
    Battery Life (CIPA)290 shots per charge490 shots per charge
    Body Dimensions 122 x 71 x 44 mm
    (4.8 x 2.8 x 1.7 in)
    143 x 104 x 76 mm
    (5.6 x 4.1 x 3.0 in)
    Camera Weight 426 g (15.0 oz) 849 g (29.9 oz)

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