Panasonic GX7 versus Panasonic G9
The Panasonic Lumix DMC-GX7 and the Panasonic Lumix DC-G9 are two enthusiast cameras that were announced, respectively, in August 2013 and November 2017. Both the GX7 and the G9 are mirrorless interchangeable lens cameras that are equipped with a Four Thirds sensor. The GX7 has a resolution of 15.8 megapixel, whereas the G9 provides 20.2 MP.
The physical size and weight of the Panasonic GX7 and the Panasonic G9 are illustrated in the side-by-side display below. Three consecutive perspectives from the front, the top, and the back are presented. All width, height and depth dimensions are rounded to the nearest millimeter. You can also toggle the display to switch to a percentage comparison if you prefer that the measures are being expressed in relative terms (in this case, the camera on the left – the GX7 – represents the basis or 100 percent across all the size and weight measures).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic G9 is considerably larger (52 percent) than the Panasonic GX7. Moreover, the G9 is substantially heavier (64 percent) than the GX7. It is noteworthy in this context that the G9 is splash and dust-proof, while the GX7 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. In this particular case, both cameras feature the same lens mount, so that they can use the same lenses. You can find an overview of suitable optics 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, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible comparisons there.
|Camera Body Specifications
|Panasonic GX7 (⇒ rgt)||123 mm||71 mm||55 mm||402 g||350||no||2013||999||discont.||check|
|Panasonic G9 (⇒ lft)||137 mm||97 mm||92 mm||658 g||400||YES||2017||1,699||latest||check|
|Fujifilm X-H1 (⇒ lft | rgt)||140 mm||97 mm||86 mm||673 g||310||YES||2018||1,899||latest||check|
|Olympus E-M1 II (⇒ lft | rgt)||134 mm||91 mm||67 mm||574 g||440||YES||2016||1,999||latest||check|
|Olympus E-M10 (⇒ lft | rgt)||119 mm||82 mm||46 mm||396 g||320||no||2014||699||discont.||check|
|Olympus E-P5 (⇒ lft | rgt)||122 mm||69 mm||37 mm||420 g||330||no||2013||999||discont.||check|
|Olympus E-M5 (⇒ lft | rgt)||122 mm||89 mm||43 mm||425 g||360||YES||2012||1,299||discont.||check|
|Panasonic GH5s (⇒ lft | rgt)||139 mm||98 mm||87 mm||660 g||440||YES||2018||2,499||latest||check|
|Panasonic GH5 (⇒ lft | rgt)||139 mm||98 mm||87 mm||725 g||410||YES||2017||1,999||latest||check|
|Panasonic G85 (⇒ lft | rgt)||128 mm||89 mm||74 mm||505 g||330||YES||2016||899||latest||check|
|Panasonic GX85 (⇒ lft | rgt)||122 mm||71 mm||44 mm||426 g||290||no||2016||799||latest||check|
|Panasonic GX8 (⇒ lft | rgt)||133 mm||78 mm||63 mm||487 g||330||YES||2015||1,199||discont.||check|
|Panasonic GM5 (⇒ lft | rgt)||99 mm||60 mm||36 mm||211 g||220||no||2014||749||discont.||check|
|Panasonic LX100 (⇒ lft | rgt)||115 mm||66 mm||55 mm||393 g||300||no||2014||899||latest||check|
|Panasonic G6 (⇒ lft | rgt)||122 mm||85 mm||71 mm||390 g||340||no||2013||599||discont.||check|
|Panasonic GM1 (⇒ lft | rgt)||99 mm||55 mm||30 mm||204 g||230||no||2013||749||discont.||check|
The listed prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The GX7 was launched at a markedly lower price (by 41 percent) than the G9, 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
The size of the sensor inside a digital camera is one of the key determinants of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color depth than smaller pixels in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors tend to be 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.
While the two cameras under review share the same sensor size, the G9 offers a higher resolution of 20.2 megapixel, compared with 15.8 MP of the GX7. This megapixel advantage translates into a 13 percent gain in linear resolution. On the other hand, these sensor specs imply that the G9 has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.34μm versus 3.77μm for the GX7). However, it should be noted that the G9 is much more recent (by 4 years and 3 months) than the GX7, and its sensor will have benefitted from technological advances during this time that compensate for the smaller pixel size. Coming back to sensor resolution, it should be mentioned that the G9 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
Unlike the GX7, the G9 has the capacity to capture high quality composite images (80.6MP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).
For most 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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
|Panasonic GX7 (⇒ rgt)||Four Thirds||15.8||4592||3448||1080/60p||22.6||12.2||718||70|
|Panasonic G9 (⇒ lft)||Four Thirds||20.2||5184||3888||4K/60p||-||-||-||-|
|Fujifilm X-H1 (⇒ lft | rgt)||APS-C||24.0||6000||4000||4K/30p||-||-||-||-|
|Olympus E-M1 II (⇒ lft | rgt)||Four Thirds||20.2||5184||3888||4K/30p||23.7||12.8||1312||80|
|Olympus E-M10 (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/30p||22.8||12.3||884||72|
|Olympus E-P5 (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/30p||22.8||12.4||895||72|
|Olympus E-M5 (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/60i||22.8||12.3||826||71|
|Panasonic GH5s (⇒ lft | rgt)||Four Thirds||9.9||3680||2700||4K/60p||..||..||..||..|
|Panasonic GH5 (⇒ lft | rgt)||Four Thirds||20.2||5184||3888||4K/60p||23.9||13.0||807||77|
|Panasonic G85 (⇒ lft | rgt)||Four Thirds||15.8||4592||3448||4K/30p||22.8||12.5||656||71|
|Panasonic GX85 (⇒ lft | rgt)||Four Thirds||15.8||4592||3448||4K/30p||22.9||12.6||662||71|
|Panasonic GX8 (⇒ lft | rgt)||Four Thirds||20.2||5184||3888||4K/30p||23.5||12.6||806||75|
|Panasonic GM5 (⇒ lft | rgt)||Four Thirds||15.8||4592||3448||1080/60p||22.1||11.7||721||66|
|Panasonic LX100 (⇒ lft | rgt)||Four Thirds||12.7||4112||3088||4K/30p||22.3||12.5||553||67|
|Panasonic G6 (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/60p||21.3||11.5||639||61|
|Panasonic GM1 (⇒ lft | rgt)||Four Thirds||15.8||4592||3448||1080/60i||22.3||11.7||660||66|
Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the G9 provides a better video resolution than the GX7. It can shoot movie footage at 4K/60p, while the GX7 is limited to 1080/60p.
Beyond 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 G9 offers a higher resolution than the one in the GX7 (3680k vs 2760k dots). The following table reports on some other key feature differences and similarities of the Panasonic GX7, the Panasonic G9, and comparable cameras. If you need more detail on the specs, you can find comprehensive listings, for example, in the dpreview camera hub.
|Panasonic GX7 (⇒ rgt)||2760||no||3.0||1040||tilting||YES||8000||5.0||7||YES|
|Panasonic G9 (⇒ lft)||3680||YES||3.0||1040||swivel||YES||8000||20.0||no||YES|
|Fujifilm X-H1 (⇒ lft | rgt)||3690||YES||3.0||1040||full-flex||YES||8000||14.0||no||YES|
|Olympus E-M1 II (⇒ lft | rgt)||2360||no||3.0||1037||swivel||YES||8000||18.0||no||YES|
|Olympus E-M10 (⇒ lft | rgt)||1440||no||3.0||1037||tilting||YES||4000||8.0||5.8||YES|
|Olympus E-P5 (⇒ lft | rgt)||no||no||3.0||1037||tilting||YES||8000||9.0||7||YES|
|Olympus E-M5 (⇒ lft | rgt)||1440||no||3.0||610||tilting||YES||4000||9.0||no||YES|
|Panasonic GH5s (⇒ lft | rgt)||3680||no||3.2||1620||swivel||YES||8000||12.0||no||no|
|Panasonic GH5 (⇒ lft | rgt)||3680||no||3.2||1620||swivel||YES||8000||12.0||no||YES|
|Panasonic G85 (⇒ lft | rgt)||2360||no||3.0||1040||swivel||YES||4000||9.0||6.2||YES|
|Panasonic GX85 (⇒ lft | rgt)||2765||no||3.0||1040||tilting||YES||4000||8.0||6||YES|
|Panasonic GX8 (⇒ lft | rgt)||2360||no||3.0||1040||swivel||YES||8000||10.0||no||YES|
|Panasonic GM5 (⇒ lft | rgt)||1166||no||3.0||921||fixed||YES||500||5.8||no||no|
|Panasonic LX100 (⇒ lft | rgt)||2764||no||3.0||921||fixed||no||4000||11.0||no||YES|
|Panasonic G6 (⇒ lft | rgt)||1440||no||3.0||1036||swivel||YES||4000||7.0||10.5||no|
|Panasonic GM1 (⇒ lft | rgt)||no||no||3.0||1036||fixed||YES||500||5.0||4||no|
The G9 is a current model that online retailers, such as amazon, will have in stock. In contrast, the GX7 has been discontinued (but it can be found pre-owned on ebay). As a replacement in the same line of cameras, the GX7 was succeeded by the Panasonic GX85.
So what conclusions can be drawn? Which of the two cameras – the Panasonic GX7 or the Panasonic G9 – has the upper hand? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of the Panasonic Lumix DMC-GX7:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- More compact: Is smaller (123x71mm vs 137x97mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 256g or 39 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 (41 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in August 2013).
Reasons to prefer the Panasonic Lumix DC-G9:
- More detail: Has more megapixels (20.2 vs 15.8MP), which boosts linear resolution by 13%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- High quality composites: Can combine several shots after pixel-shifting its sensor.
- Better video: Provides higher definition movie capture (4K/60p vs 1080/60p).
- More detailed viewfinder: Has higher resolution electronic viewfinder (3680k vs 2760k dots).
- Easier setting verification: Has a control panel on top to check shooting parameters.
- More flexible LCD: Has swivel screen for odd-angle shots in portrait or landscape orientation.
- Faster burst: Shoots at higher frequency (20 vs 5 flaps/sec) to capture the decisive moment.
- Longer lasting: Gets more shots (400 versus 350) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- More modern: Reflects 4 years and 3 months of technical progress since the GX7 launch.
If the number of relative strengths (bullet points above) is taken as a guide, the G9 is the clear winner of the contest (11 : 6 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.
In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it says nothing about, for example, the handling, responsiveness, and overall imaging quality of the GX7 and the G9 in practical situations. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased. This is why expert reviews are important. The table below summarizes the assessments of some of the best known camera review sites. You can find the full text of the reviews, respectively, at cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.
|Panasonic GX7 (⇒ rgt)||Rec||79/100 Silver||5/5||4.5/5||5/5||2013||999||discont.||check|
|Panasonic G9 (⇒ lft)||HiRec||85/100 Silver||5/5||..||5/5||2017||1,699||latest||check|
|Fujifilm X-H1 (⇒ lft | rgt)||Rec||86/100 Silver||4.5/5||..||4.5/5||2018||1,899||latest||check|
|Olympus E-M1 II (⇒ lft | rgt)||HiRec||85/100 Gold||4.5/5||5/5||4.5/5||2016||1,999||latest||check|
|Olympus E-M10 (⇒ lft | rgt)||-||80/100 Gold||5/5||4.5/5||5/5||2014||699||discont.||check|
|Olympus E-P5 (⇒ lft | rgt)||HiRec||78/100 Silver||4.5/5||4.5/5||5/5||2013||999||discont.||check|
|Olympus E-M5 (⇒ lft | rgt)||HiRec||80/100 Gold||4.5/5||5/5||5/5||2012||1,299||discont.||check|
|Panasonic GH5s (⇒ lft | rgt)||..||84/100 Gold||4.5/5||..||4.5/5||2018||2,499||latest||check|
|Panasonic GH5 (⇒ lft | rgt)||HiRec||85/100 Gold||4.5/5||5/5||5/5||2017||1,999||latest||check|
|Panasonic G85 (⇒ lft | rgt)||HiRec||84/100 Gold||5/5||4.5/5||4.5/5||2016||899||latest||check|
|Panasonic GX85 (⇒ lft | rgt)||HiRec||82/100 Silver||5/5||4.5/5||5/5||2016||799||latest||check|
|Panasonic GX8 (⇒ lft | rgt)||Rec||82/100 Silver||4.5/5||5/5||4.5/5||2015||1,199||discont.||check|
|Panasonic GM5 (⇒ lft | rgt)||Rec||77/100 Silver||5/5||5/5||4.5/5||2014||749||discont.||check|
|Panasonic LX100 (⇒ lft | rgt)||HiRec||85/100 Gold||5/5||4/5||5/5||2014||899||latest||check|
|Panasonic G6 (⇒ lft | rgt)||HiRec||-||5/5||-||4.5/5||2013||599||discont.||check|
|Panasonic GM1 (⇒ lft | rgt)||Rec||78/100 Gold||5/5||4.5/5||4.5/5||2013||749||discont.||check|
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. Thus, a score needs to be put into the context of the launch date and the launch price 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.
If you would like to see a different side-by-side camera review, just use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting. If the camera you are interested in is not available, please send me an email, and I will try to update the database with the necessary infos.
- Canon 10D vs Nikon D3400
- Canon 600D vs Sony A7 III
- Canon 800D vs Nikon D40
- Fujifilm X100F vs Panasonic LX10
- Nikon D300S vs Fujifilm X-Pro1
- Nikon D7000 vs Canon T7
- Panasonic G7 vs Canon T6i
- Panasonic G7 vs Panasonic GX8
- Panasonic GH5s vs Panasonic LX10
- Panasonic GX80 vs Canon 1Ds
- Panasonic GX80 vs Sony A6300
- Sony RX100 vs Canon SL2