Panasonic G7 vs GX850
The Panasonic Lumix DMC-G7 and the Panasonic Lumix DMC-GX850 (labelled Panasonic GX800 in some countries) are two digital cameras that were revealed to the public, respectively, in May 2015 and January 2017. Both the G7 and the GX850 are mirrorless interchangeable lens cameras that are equipped with a Four Thirds sensor. Both cameras offer a resolution of 15.8 megapixels.
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-G7 and the Panasonic Lumix DMC-GX850? 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 physical size and weight of the Panasonic G7 and the Panasonic GX850 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 width, height and depth measures are rounded to the nearest millimeter.
The G7 can be obtained in two different colors (black, silver), while the GX850 is available in three color-versions (black, silver, red).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic GX850 is considerably smaller (35 percent) than the Panasonic G7. Moreover, the GX850 is markedly lighter (34 percent) than the G7. In this context, it is worth noting that neither the G7 nor the GX850 are weather-sealed.
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. In this particular case, both cameras feature the same lens mount, so that they can use the same lenses. You can compare the optics available in the Micro Four Thirds Lens Catalog. 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.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.
|1.||Panasonic G7||125 mm||86 mm||77 mm||410 g||350||n||May 2015||649||ebay.com|
|2.||Panasonic GX850||107 mm||65 mm||33 mm||269 g||210||n||Jan 2017||549||amazon.com|
|3.||Olympus E-PL7||115 mm||67 mm||38 mm||357 g||350||n||Aug 2014||599||ebay.com|
|4.||Panasonic GF7||107 mm||65 mm||33 mm||266 g||230||n||Jan 2015||499||ebay.com|
|5.||Panasonic GM5||99 mm||60 mm||36 mm||211 g||220||n||Sep 2014||749||ebay.com|
|6.||Panasonic G6||122 mm||85 mm||71 mm||390 g||340||n||Apr 2013||599||ebay.com|
|7.||Panasonic GM1||99 mm||55 mm||30 mm||204 g||230||n||Oct 2013||749||ebay.com|
|8.||Panasonic G5||120 mm||83 mm||71 mm||396 g||320||n||Jul 2012||599||ebay.com|
|9.||Panasonic G3||115 mm||84 mm||47 mm||336 g||270||n||May 2011||599||ebay.com|
|10.||Panasonic GX1||116 mm||68 mm||39 mm||318 g||320||n||Nov 2011||699||ebay.com|
|11.||Panasonic G2||124 mm||84 mm||74 mm||428 g||360||n||Mar 2010||599||ebay.com|
|12.||Panasonic GH2||124 mm||90 mm||76 mm||442 g||330||n||Sep 2010||899||ebay.com|
|13.||Panasonic GF1||119 mm||71 mm||36 mm||385 g||380||n||Sep 2009||749||ebay.com|
|Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will obviously take relative prices into account. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The GX850 was launched at a somewhat lower price (by 15 percent) than the G7, 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. 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. 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 tend to be associated with larger, more expensive camera bodies and lenses.
Both cameras under consideration feature a Four Thirds sensor and have a format factor (sometimes also referred to as "crop factor") of 2.0. Within the spectrum of camera sensors, this places the review cameras among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.
The two cameras under review do not only share the same sensor size, but also offer an identical resolution of 15.8 megapixels. This similarity in sensor specs implies that both the G7 and the GX850 have the same pixel density, as well as the same pixel size. It should, however, be noted that the GX850 is a somewhat more recent model (by 1 year and 7 months) than the G7, and its sensor might have benefitted from technological advances during this time. Coming back to sensor resolution, it should be mentioned that the GX850 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The Panasonic Lumix DMC-G7 has a native sensitivity range from ISO 160 to ISO 25600. The corresponding ISO settings for the Panasonic Lumix DMC-GX850 are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 100-25600.
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 assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|1.||Panasonic G7||Four Thirds||15.8||4592||3448||4K/30p||22.8||12.4||904||71|
|2.||Panasonic GX850||Four Thirds||15.8||4592||3448||4K/30p||23.2||13.3||586||73|
|3.||Olympus E-PL7||Four Thirds||15.9||4608||3456||1080/30p||22.7||12.4||873||72|
|4.||Panasonic GF7||Four Thirds||15.8||4592||3448||1080/60p||22.7||12.3||874||70|
|5.||Panasonic GM5||Four Thirds||15.8||4592||3448||1080/60p||22.1||11.7||721||66|
|6.||Panasonic G6||Four Thirds||15.9||4608||3456||1080/60p||21.3||11.5||639||61|
|7.||Panasonic GM1||Four Thirds||15.8||4592||3448||1080/60i||22.3||11.7||660||66|
|8.||Panasonic G5||Four Thirds||15.9||4608||3456||1080/60p||22.3||11.9||643||66|
|9.||Panasonic G3||Four Thirds||15.8||4592||3448||1080/60i||21.0||10.6||667||56|
|10.||Panasonic GX1||Four Thirds||15.8||4592||3448||1080/60p||20.8||10.6||703||55|
|11.||Panasonic G2||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||493||53|
|12.||Panasonic GH2||Four Thirds||15.9||4608||3456||1080/60i||21.2||11.3||655||60|
|13.||Panasonic GF1||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||513||54|
|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. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, and both provide the same movie specifications (4K/30p).
Beyond body and sensor, cameras can and do differ across a range of features. For example, the G7 has an electronic viewfinder (2360k 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 following table reports on some other key feature differences and similarities of the Panasonic G7, the Panasonic GX850, and comparable cameras.
|1.||Panasonic G7||2360||n||3.0 / 1040||swivel||Y||1/4000s||7.0/s||Y||n|
|2.||Panasonic GX850||none||n||3.0 / 1040||tilting||Y||1/500s||10.0/s||Y||n|
|3.||Olympus E-PL7||optional||n||3.0 / 1037||tilting||Y||1/4000s||8.0/s||n||Y|
|4.||Panasonic GF7||none||n||3.0 / 1040||tilting||Y||1/500s||5.8/s||Y||n|
|5.||Panasonic GM5||1166||n||3.0 / 921||fixed||Y||1/500s||5.8/s||n||n|
|6.||Panasonic G6||1440||n||3.0 / 1036||swivel||Y||1/4000s||7.0/s||Y||n|
|7.||Panasonic GM1||none||n||3.0 / 1036||fixed||Y||1/500s||5.0/s||Y||n|
|8.||Panasonic G5||1440||n||3.0 / 920||swivel||Y||1/4000s||6.0/s||Y||n|
|9.||Panasonic G3||1440||n||3.0 / 460||swivel||Y||1/4000s||4.0/s||Y||n|
|10.||Panasonic GX1||optional||n||3.0 / 460||fixed||Y||1/4000s||4.2/s||Y||n|
|11.||Panasonic G2||1440||n||3.0 / 460||swivel||Y||1/4000s||2.6/s||Y||n|
|12.||Panasonic GH2||1534||n||3.0 / 460||swivel||n||1/4000s||3.0/s||Y||n|
|13.||Panasonic GF1||optional||n||3.0 / 460||fixed||n||1/4000s||3.0/s||Y||n|
|Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.|
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 G7 and the Panasonic GX850 both have an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.
Concerning the storage of imaging data, both the G7 and the GX850 write their files to SDXC cards. The G7 supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the GX850 can use UHS-I cards (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-G7 and Panasonic Lumix DMC-GX850 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Panasonic G7||Y||stereo / mono||Y||-||micro||2.0||Y||-||-|
|2.||Panasonic GX850||-||stereo / mono||-||-||micro||2.0||Y||-||-|
|3.||Olympus E-PL7||Y||stereo / mono||-||-||micro||2.0||Y||-||-|
|4.||Panasonic GF7||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|5.||Panasonic GM5||Y||stereo / mono||-||-||micro||2.0||Y||-||-|
|6.||Panasonic G6||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|7.||Panasonic GM1||-||stereo / mono||-||-||micro||2.0||Y||-||-|
|8.||Panasonic G5||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|9.||Panasonic G3||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|10.||Panasonic GX1||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|11.||Panasonic G2||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|12.||Panasonic GH2||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|13.||Panasonic GF1||Y||mono / mono||-||-||mini||2.0||-||-||-|
It is notable that the G7 has a hotshoe, while the GX850 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.
The GX850 is a recent model that features in the current product line-up of Panasonic. In contrast, the G7 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the G7 was succeeded by the Panasonic G85. Further information on the features and operation of the G7 and GX850 can be found, respectively, in the Panasonic G7 Manual (free pdf) or the online Panasonic GX850 Manual.
So how do things add up? Which of the two cameras – the Panasonic G7 or the Panasonic GX850 – 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.
Reasons to prefer the Panasonic Lumix DMC-G7:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better sound: Can connect to an external microphone for higher quality sound 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 (1/4000s vs 1/500s) to freeze action.
- Longer lasting: Can take more shots (350 versus 210) on a single battery charge.
- Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
- More heavily discounted: Has been on the market for longer (launched in May 2015).
Arguments in favor of the Panasonic Lumix DMC-GX850:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Faster burst: Shoots at higher frequency (10 vs 7 flaps/sec) to capture the decisive moment.
- More compact: Is smaller (107x65mm vs 125x86mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 141g or 34 percent) and is thus easier to take along.
- More affordable: Was released into a lower priced segment (15 percent cheaper at launch).
- More modern: Was introduced somewhat (1 year and 7 months) more recently.
If the number of relative strengths (bullet points above) is taken as a guide, the G7 emerges as the winner of the contest (9 : 6 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 G7 and the Panasonic GX850 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 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 G7 and the GX850 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.
This is why expert reviews are important. The following table reports the overall ratings of the cameras as published by some of the major camera 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 G7||4/5||+ +||..||80/100||5/5||4.5/5||May 2015||649||ebay.com|
|2.||Panasonic GX850||..||+||..||76/100||4.5/5||4.5/5||Jan 2017||549||amazon.com|
|3.||Olympus E-PL7||4/5||+||..||..||5/5||4/5||Aug 2014||599||ebay.com|
|4.||Panasonic GF7||4/5||+||..||..||4.5/5||4.5/5||Jan 2015||499||ebay.com|
|5.||Panasonic GM5||3.5/5||+||..||77/100||5/5||4.5/5||Sep 2014||749||ebay.com|
|6.||Panasonic G6||4/5||+ +||..||..||5/5||4.5/5||Apr 2013||599||ebay.com|
|7.||Panasonic GM1||3/5||+||..||78/100||5/5||4.5/5||Oct 2013||749||ebay.com|
|8.||Panasonic G5||3/5||+ +||..||..||4.5/5||4.5/5||Jul 2012||599||ebay.com|
|9.||Panasonic G3||3/5||+ +||..||75/100||4.5/5||5/5||May 2011||599||ebay.com|
|10.||Panasonic GX1||3/5||+||..||77/100||4.5/5||4.5/5||Nov 2011||699||ebay.com|
|11.||Panasonic G2||..||..||..||72/100||4/5||4.5/5||Mar 2010||599||ebay.com|
|12.||Panasonic GH2||5/5||+ +||..||79/100||4.5/5||5/5||Sep 2010||899||ebay.com|
|13.||Panasonic GF1||..||85/100||..||69/100||4.5/5||4.5/5||Sep 2009||749||ebay.com|
|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. Also, please note that some of the review sites have changed their methodology and reporting over time.
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. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
- Canon 1Ds vs Panasonic GX850
- Canon G3 X vs Panasonic G7
- Canon SX40 vs Panasonic G7
- Canon T5i vs Panasonic GX850
- Canon XTi vs Panasonic GX850
- Fujifilm X-A10 vs Panasonic GX850
- Fujifilm X-Pro3 vs Panasonic G7
- Nikon Z5 vs Panasonic G7
- Nikon Z9 vs Panasonic GX850
- Olympus E-P5 vs Panasonic G7
- Panasonic G7 vs Sony RX10 II
- Panasonic GX850 vs Pentax K-3 II
Specifications: Panasonic G7 vs Panasonic GX850
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 G7||Panasonic GX850|
|Camera Type||Mirrorless system camera||Mirrorless system camera|
|Camera Lens||Micro Four Thirds lenses||Micro Four Thirds lenses|
|Launch Date||May 2015||January 2017|
|Launch Price||USD 649||USD 549|
|Sensor Specs||Panasonic G7||Panasonic GX850|
|Sensor Format||Four Thirds Sensor||Four Thirds Sensor|
|Sensor Size||17.3 x 13.0 mm||17.3 x 13.0 mm|
|Sensor Area||224.9 mm2||224.9 mm2|
|Sensor Diagonal||21.6 mm||21.6 mm|
|Sensor Resolution||15.8 Megapixels||15.8 Megapixels|
|Image Resolution||4592 x 3448 pixels||4592 x 3448 pixels|
|Pixel Pitch||3.77 μm||3.77 μm|
|Pixel Density||7.04 MP/cm2||7.04 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||4K/30p Video||4K/30p Video|
|ISO Setting||160 - 25,600 ISO||200 - 25,600 ISO|
|ISO Boost||no Enhancement||100 - 25,600 ISO|
|DXO Sensor Quality (score)||..||73|
|DXO Color Depth (bits)||..||23.2|
|DXO Dynamic Range (EV)||..||13.3|
|DXO Low Light (ISO)||..||586|
|Screen Specs||Panasonic G7||Panasonic GX850|
|Viewfinder Type||Electronic viewfinder||no viewfinder|
|Viewfinder Field of View||100%|
|Viewfinder Resolution||2360k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1040k dots||1040k dots|
|LCD Attachment||Swivel screen||Tilting screen|
|Shooting Specs||Panasonic G7||Panasonic GX850|
|Focus System||Contrast-detect AF||Contrast-detect AF|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/500s|
|Continuous Shooting||7 shutter flaps/s||10 shutter flaps/s|
|Electronic Shutter||up to 1/16000s||up to 1/16000s|
|Time-Lapse Photography||Intervalometer built-in||Intervalometer built-in|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-II||UHS-I|
|Connectivity Specs||Panasonic G7||Panasonic GX850|
|External Flash||Hotshoe||no Hotshoe|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||micro HDMI||micro HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Wifi Support||Wifi built-in||Wifi built-in|
|Body Specs||Panasonic G7||Panasonic GX850|
|Battery Life (CIPA)||350 shots per charge||210 shots per charge|
125 x 86 x 77 mm
(4.9 x 3.4 x 3.0 in)
107 x 65 x 33 mm
(4.2 x 2.6 x 1.3 in)
|Camera Weight||410 g (14.5 oz)||269 g (9.5 oz)|
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