Panasonic GM5 vs Sony A99
The Panasonic Lumix DMC-GM5 and the Sony Alpha SLT-A99 are two digital cameras that were officially introduced, respectively, in September 2014 and September 2012. The GM5 is a mirrorless interchangeable lens camera, while the A99 is a DSLR. The cameras are based on a Four Thirds (GM5) and a full frame (A99) sensor. The Panasonic has a resolution of 15.8 megapixels, whereas the Sony provides 24 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DMC-GM5 and the Sony Alpha SLT-A99? 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.
The side-by-side display below illustrates the physical size and weight of the Panasonic GM5 and the Sony A99. 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 width, height and depth dimensions are rounded to the nearest millimeter.
The GM5 can be obtained in two different colors (black, silver), while the A99 is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A99 is considerably larger (175 percent) than the Panasonic GM5. Moreover, the A99 is substantially heavier (285 percent) than the GM5. It is noteworthy in this context that the A99 is splash and dust-proof, while the GM5 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.
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.
|1.||Panasonic GM5||99 mm||60 mm||36 mm||211 g||220||n||Sep 2014||749||ebay.com|
|2.||Sony A99||147 mm||111 mm||78 mm||812 g||500||Y||Sep 2012||2,799||ebay.com|
|3.||Panasonic GX85||122 mm||71 mm||44 mm||426 g||290||n||Apr 2016||799||amazon.com|
|4.||Panasonic G7||125 mm||86 mm||77 mm||410 g||350||n||May 2015||649||ebay.com|
|5.||Panasonic GH4||133 mm||93 mm||84 mm||560 g||500||Y||Feb 2014||1,499||ebay.com|
|6.||Panasonic LX100||115 mm||66 mm||55 mm||393 g||300||n||Sep 2014||899||ebay.com|
|7.||Panasonic G6||122 mm||85 mm||71 mm||390 g||340||n||Apr 2013||599||ebay.com|
|8.||Panasonic GM1||99 mm||55 mm||30 mm||204 g||230||n||Oct 2013||749||ebay.com|
|9.||Panasonic GX1||116 mm||68 mm||39 mm||318 g||320||n||Nov 2011||699||ebay.com|
|10.||Panasonic GH2||124 mm||90 mm||76 mm||442 g||330||n||Sep 2010||899||ebay.com|
|11.||Ricoh GR II||117 mm||63 mm||35 mm||251 g||320||n||Jun 2015||699||ebay.com|
|12.||Ricoh GR||117 mm||61 mm||35 mm||245 g||290||n||Apr 2013||799||ebay.com|
|13.||Sony A9 II||129 mm||96 mm||76 mm||678 g||690||Y||Oct 2019||4,499||amazon.com|
|14.||Sony A99 II||143 mm||104 mm||76 mm||849 g||490||Y||Sep 2016||3,199||ebay.com|
|15.||Sony A77||143 mm||104 mm||81 mm||732 g||470||Y||Aug 2011||1,399||ebay.com|
|16.||Sony A850||156 mm||117 mm||82 mm||895 g||880||Y||Aug 2009||1,999||ebay.com|
|17.||Sony A900||156 mm||117 mm||82 mm||895 g||880||Y||Sep 2008||2,999||ebay.com|
|Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
The price is, of course, an important factor in any camera decision. 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 GM5 was launched at a markedly lower price (by 73 percent) than the A99, 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
The imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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. 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 GM5 features a Four Thirds sensor and the Sony A99 a full frame sensor. The sensor area in the A99 is 279 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 GM5 has a native 4:3 aspect ratio, while the one in the A99 offers a 3:2 aspect.
With 24MP, the A99 offers a higher resolution than the GM5 (15.8MP), but the A99 nevertheless has larger individual pixels (pixel pitch of 5.96μm versus 3.77μm for the GM5) due to its larger sensor. However, the GM5 is a much more recent model (by 2 years) than the A99, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units.
The resolution advantage of the Sony A99 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A99 for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Panasonic GM5 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 Panasonic Lumix DMC-GM5 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 SLT-A99 are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-25600.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
For many cameras, data on sensor performance has been reported by DXO Mark. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). Of the two cameras under consideration, the A99 offers substantially better image quality than the GM5 (overall score 23 points higher). The advantage is based on 2.9 bits higher color depth, 2.3 EV in additional dynamic range, and 1.1 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.
|1.||Panasonic GM5||Four Thirds||15.8||4592||3448||1080/60p||22.1||11.7||721||66|
|2.||Sony A99||Full Frame||24.0||6000||4000||1080/60p||25.0||14.0||1555||89|
|3.||Panasonic GX85||Four Thirds||15.8||4592||3448||4K/30p||22.9||12.6||662||71|
|4.||Panasonic G7||Four Thirds||15.8||4592||3448||4K/30p||22.8||12.4||904||71|
|5.||Panasonic GH4||Four Thirds||15.9||4608||3456||4K/30p||23.2||12.8||791||74|
|6.||Panasonic LX100||Four Thirds||12.7||4112||3088||4K/30p||22.3||12.5||553||67|
|7.||Panasonic G6||Four Thirds||15.9||4608||3456||1080/60p||21.3||11.5||639||61|
|8.||Panasonic GM1||Four Thirds||15.8||4592||3448||1080/60i||22.3||11.7||660||66|
|9.||Panasonic GX1||Four Thirds||15.8||4592||3448||1080/60p||20.8||10.6||703||55|
|10.||Panasonic GH2||Four Thirds||15.9||4608||3456||1080/60i||21.2||11.3||655||60|
|11.||Ricoh GR II||APS-C||16.1||4928||3264||1080/30p||23.6||13.7||1078||80|
|13.||Sony A9 II||Full Frame||24.0||6000||4000||4K/30p||25.0||14.0||3434||93|
|14.||Sony A99 II||Full Frame||42.2||7952||5304||4K/30p||25.4||13.4||2317||92|
|16.||Sony A850||Full Frame||24.4||6048||4032||none||23.8||12.2||1415||79|
|17.||Sony A900||Full Frame||24.4||6048||4032||none||23.7||12.3||1431||79|
|Note: DXO values in italics represent estimates based on sensor size and age.|
Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, and both provide the same movie specifications (1080/60p).
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 A99 offers a substantially higher resolution than the one in the GM5 (2359k vs 1166k dots). The adjacent table lists some of the other core features of the Panasonic GM5 and Sony A99 along with similar information for a selection of comparators.
|1.||Panasonic GM5||1166||n||3.0 / 921||fixed||Y||1/500s||5.8/s||n||n|
|2.||Sony A99||2359||Y||3.0 / 1229||full-flex||n||1/8000s||6.0/s||n||Y|
|3.||Panasonic GX85||2765||n||3.0 / 1040||tilting||Y||1/4000s||8.0/s||Y||Y|
|4.||Panasonic G7||2360||n||3.0 / 1040||swivel||Y||1/4000s||7.0/s||Y||n|
|5.||Panasonic GH4||2359||n||3.0 / 1036||swivel||Y||1/8000s||12.0/s||Y||n|
|6.||Panasonic LX100||2764||n||3.0 / 921||fixed||n||1/4000s||11.0/s||n||Y|
|7.||Panasonic G6||1440||n||3.0 / 1036||swivel||Y||1/4000s||7.0/s||Y||n|
|8.||Panasonic GM1||none||n||3.0 / 1036||fixed||Y||1/500s||5.0/s||Y||n|
|9.||Panasonic GX1||optional||n||3.0 / 460||fixed||Y||1/4000s||4.2/s||Y||n|
|10.||Panasonic GH2||1534||n||3.0 / 460||swivel||n||1/4000s||3.0/s||Y||n|
|11.||Ricoh GR II||optional||n||3.0 / 1230||fixed||n||1/4000s||4.0/s||Y||n|
|12.||Ricoh GR||optional||n||3.0 / 1230||fixed||n||1/4000s||4.0/s||Y||n|
|13.||Sony A9 II||3686||n||3.0 / 1440||tilting||Y||1/8000s||20.0/s||n||Y|
|14.||Sony A99 II||2400||Y||3.0 / 1229||full-flex||n||1/8000s||12.0/s||n||Y|
|15.||Sony A77||2359||Y||3.0 / 921||full-flex||n||1/8000s||12.0/s||Y||Y|
|16.||Sony A850||optical||Y||3.0 / 922||fixed||n||1/8000s||3.0/s||n||Y|
|17.||Sony A900||optical||Y||3.0 / 922||fixed||n||1/8000s||5.0/s||n||Y|
|Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.|
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The GM5 has a touchscreen, while the A99 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.The A99 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 GM5 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 GM5 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 GM5 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 GM5 writes its imaging data to SDXC cards, while the A99 uses SDXC or Memory Stick PRO Duo cards. The A99 features dual card slots, which can be very useful in case a memory card fails. In contrast, the GM5 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.
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-GM5 and Sony Alpha SLT-A99 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Panasonic GM5||Y||stereo / mono||-||-||micro||2.0||Y||-||-|
|2.||Sony A99||Y||stereo / mono||Y||Y||mini||2.0||-||-||-|
|3.||Panasonic GX85||Y||stereo / mono||-||-||micro||2.0||Y||-||-|
|4.||Panasonic G7||Y||stereo / mono||Y||-||micro||2.0||Y||-||-|
|5.||Panasonic GH4||Y||stereo / mono||Y||Y||micro||2.0||Y||Y||-|
|6.||Panasonic LX100||Y||stereo / mono||-||-||micro||2.0||Y||Y||-|
|7.||Panasonic G6||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|8.||Panasonic GM1||-||stereo / mono||-||-||micro||2.0||Y||-||-|
|9.||Panasonic GX1||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|10.||Panasonic GH2||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|11.||Ricoh GR II||Y||stereo / mono||-||-||micro||2.0||Y||Y||-|
|12.||Ricoh GR||Y||mono / mono||-||-||micro||2.0||-||-||-|
|13.||Sony A9 II||Y||stereo / mono||Y||Y||micro||3.1||Y||Y||Y|
|14.||Sony A99 II||Y||stereo / mono||Y||Y||micro||2.0||Y||Y||Y|
|15.||Sony A77||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|16.||Sony A850||Y||- / -||-||-||mini||2.0||-||-||-|
|17.||Sony A900||Y||- / -||-||-||mini||2.0||-||-||-|
It is notable that the GM5 offers wifi support, while the A99 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.
Studio photographers will appreciate that the Sony A99 (unlike the GM5) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Travel and landscape photographers will find it useful that the A99 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.
Both the GM5 and the A99 have been discontinued, but can regularly be found used on ebay. The A99 was replaced by the Sony A99, while the GM5 does not have a direct successor. Further information on the features and operation of the GM5 and A99 can be found, respectively, in the Panasonic GM5 Manual (free pdf) or the online Sony A99 Manual.
So how do things add up? Is there a clear favorite between the Panasonic GM5 and the Sony A99? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.
Advantages of the Panasonic Lumix DMC-GM5:
- 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 (99x60mm vs 147x111mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 601g or 74 percent) and hence easier to carry around.
- More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- More affordable: Was introduced into a lower priced category (73 percent cheaper at launch).
- More modern: Reflects 2 years of technical progress since the A99 launch.
Arguments in favor of the Sony Alpha SLT-A99:
- More detail: Has more megapixels (24 vs 15.8MP), which boosts linear resolution by 26%.
- Better image quality: Scores substantially higher (23 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (2.9 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (2.3 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (1.1 stops ISO advantage).
- 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.
- More detailed viewfinder: Has higher resolution electronic viewfinder (2359k vs 1166k dots).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.71x vs 0.46x).
- Easier setting verification: Features a control panel on top to check shooting parameters.
- More detailed LCD: Has a higher resolution rear screen (1229k vs 921k 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 1/500s) to freeze action.
- Longer lasting: Gets more shots (500 versus 220) out of a single battery charge.
- 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.
- Easier geotagging: Features an internal GPS sensor to log localization data.
- 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 heavily discounted: Has been around for much longer (launched in September 2012).
If the count of relative strengths (bullet points above) is taken as a measure, the A99 is the clear winner of the contest (21 : 9 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 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.
How about other alternatives? Do the specifications of the Panasonic GM5 and the Sony A99 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 comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it says little about, for example, the shooting experience and imaging performance of the GM5 and the A99 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.
This is why hands-on reviews by experts are important. 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.
|1.||Panasonic GM5||3.5/5||+||..||77/100||5/5||4.5/5||Sep 2014||749||ebay.com|
|2.||Sony A99||5/5||..||..||84/100||4.5/5||4.5/5||Sep 2012||2,799||ebay.com|
|3.||Panasonic GX85||4.5/5||+ +||..||82/100||5/5||5/5||Apr 2016||799||amazon.com|
|4.||Panasonic G7||4/5||+ +||3.5/5||80/100||5/5||4.5/5||May 2015||649||ebay.com|
|5.||Panasonic GH4||5/5||+ +||..||85/100||5/5||5/5||Feb 2014||1,499||ebay.com|
|6.||Panasonic LX100||5/5||+ +||..||85/100||5/5||5/5||Sep 2014||899||ebay.com|
|7.||Panasonic G6||4/5||+ +||..||..||5/5||4.5/5||Apr 2013||599||ebay.com|
|8.||Panasonic GM1||3/5||+||..||78/100||5/5||4.5/5||Oct 2013||749||ebay.com|
|9.||Panasonic GX1||3/5||+||..||77/100||4.5/5||4.5/5||Nov 2011||699||ebay.com|
|10.||Panasonic GH2||5/5||+ +||..||79/100||4.5/5||5/5||Sep 2010||899||ebay.com|
|11.||Ricoh GR II||..||..||..||..||4.5/5||4.5/5||Jun 2015||699||ebay.com|
|12.||Ricoh GR||5/5||..||..||79/100||4.5/5||4.5/5||Apr 2013||799||ebay.com|
|13.||Sony A9 II||..||..||5/5||90/100||5/5||5/5||Oct 2019||4,499||amazon.com|
|14.||Sony A99 II||..||..||4.5/5||85/100||4.5/5||4.5/5||Sep 2016||3,199||ebay.com|
|15.||Sony A77||5/5||91/100||..||81/100||..||5/5||Aug 2011||1,399||ebay.com|
|16.||Sony A850||3/5||..||..||75/100||..||4.5/5||Aug 2009||1,999||ebay.com|
|17.||Sony A900||..||+ +||..||+ +||4.5/5||5/5||Sep 2008||2,999||ebay.com|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The review scores listed above should be treated with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. 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. 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? In case you would like to check on the differences and similarities of other camera models, just make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
- Canon 50D vs Sony A99
- Canon 7D vs Panasonic GM5
- Canon G1 X Mark II vs Sony A99
- Kodak S-1 vs Panasonic GM5
- Leica V-LUX 1 vs Sony A99
- Nikon D7500 vs Sony A99
- Olympus E-400 vs Panasonic GM5
- Olympus E-P2 vs Panasonic GM5
- Olympus XZ-1 vs Panasonic GM5
- Panasonic GM5 vs Panasonic GX8
- Panasonic ZS200 vs Sony A99
- Sony A99 vs Sony HX99
Specifications: Panasonic GM5 vs Sony A99
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 Model||Panasonic GM5||Sony A99|
|Camera Type||Mirrorless system camera||Digital single lens reflex|
|Camera Lens||Micro Four Thirds lenses||Sony A mount lenses|
|Launch Date||September 2014||September 2012|
|Launch Price||USD 749||USD 2,799|
|Sensor Specs||Panasonic GM5||Sony A99|
|Sensor Format||Four Thirds Sensor||Full Frame Sensor|
|Sensor Size||17.3 x 13.0 mm||35.8 x 23.8 mm|
|Sensor Area||224.9 mm2||852.04 mm2|
|Sensor Diagonal||21.6 mm||43 mm|
|Sensor Resolution||15.8 Megapixels||24 Megapixels|
|Image Resolution||4592 x 3448 pixels||6000 x 4000 pixels|
|Pixel Pitch||3.77 μm||5.96 μm|
|Pixel Density||7.04 MP/cm2||2.82 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/60p Video||1080/60p 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)||66||89|
|DXO Color Depth (bits)||22.1||25.0|
|DXO Dynamic Range (EV)||11.7||14.0|
|DXO Low Light (ISO)||721||1555|
|Screen Specs||Panasonic GM5||Sony A99|
|Viewfinder Type||Electronic viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||1166k dots||2359k dots|
|Top-Level Screen||no Top Display||Control Panel|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||921k dots||1229k dots|
|LCD Attachment||Fixed screen||Fully flexible screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Panasonic GM5||Sony A99|
|Focus System||Contrast-detect AF||Phase-detect AF|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/500s||1/8000s|
|Continuous Shooting||5.8 shutter flaps/s||6 shutter flaps/s|
|Electronic Shutter||up to 1/16000s||no E-Shutter|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||no On-Board Flash||no On-Board Flash|
|Storage Medium||SDXC cards||MS or SDXC cards|
|Single or Dual Card Slots||Single card slot||Dual card slots|
|UHS card support||UHS-I||UHS-I|
|Connectivity Specs||Panasonic GM5||Sony A99|
|Studio Flash||no PC Sync||PC Sync socket|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||micro HDMI||mini HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Headphone Socket||no Headphone port||Headphone port|
|Wifi Support||Wifi built-in||no Wifi|
|Geotagging||no internal GPS||GPS built-in|
|Body Specs||Panasonic GM5||Sony A99|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||220 shots per charge||500 shots per charge|
99 x 60 x 36 mm
(3.9 x 2.4 x 1.4 in)
147 x 111 x 78 mm
(5.8 x 4.4 x 3.1 in)
|Camera Weight||211 g (7.4 oz)||812 g (28.6 oz)|
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