Panasonic GH2 versus Panasonic GX7
The Panasonic Lumix DMC-GH2 and the Panasonic Lumix DMC-GX7 are two enthusiast cameras that were officially introduced, respectively, in September 2010 and August 2013. Both the GH2 and the GX7 are mirrorless interchangeable lens cameras that are equipped with a Four Thirds sensor. The GH2 has a resolution of 15.9 megapixel, whereas the GX7 provides 15.8 MP.
The side-by-side display below illustrates the physical size and weight of the Panasonic GH2 and the Panasonic GX7. Three consecutive perspectives from the front, the top, and the back are presented. All width, height and depth measures 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 side – the GH2 – represents the basis for the calculations 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 GX7 is notably smaller (22 percent) than the Panasonic GH2. Moreover, the GX7 is slightly lighter (9 percent) than the GH2. In this context, it is worth noting that neither the GH2 nor the GX7 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 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 GH2 (⇒ rgt)||124 mm||90 mm||76 mm||442 g||330||no||2010||1,499||discont.||check|
|Panasonic GX7 (⇒ lft)||123 mm||71 mm||55 mm||402 g||350||no||2013||999||discont.||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|
|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 GM5 (⇒ lft | rgt)||99 mm||60 mm||36 mm||211 g||220||no||2014||749||discont.||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|
|Panasonic GH3 (⇒ lft | rgt)||133 mm||93 mm||82 mm||550 g||540||YES||2012||1,299||discont.||check|
|Panasonic G3 (⇒ lft | rgt)||115 mm||84 mm||47 mm||336 g||..||no||2011||599||discont.||check|
|Panasonic GX1 (⇒ lft | rgt)||116 mm||68 mm||39 mm||318 g||..||no||2011||949||discont.||check|
|Panasonic G2 (⇒ lft | rgt)||124 mm||84 mm||74 mm||428 g||..||no||2010||599||discont.||check|
|Panasonic G10 (⇒ lft | rgt)||124 mm||84 mm||74 mm||388 g||..||no||2010||499||discont.||check|
|Panasonic GH1 (⇒ lft | rgt)||124 mm||90 mm||45 mm||385 g||..||no||2009||1,499||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 33 percent) than the GH2, 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 imaging sensor is a crucial determinant 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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its 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 GH2 offers a slightly higher resolution of 15.9 megapixel, compared with 15.8 MP of the GX7. This megapixel advantage translates into a 0.3 percent gain in linear resolution. On the other hand, these sensor specs imply that the GH2 has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.76μm versus 3.77μm for the GX7). Moreover, it should be noted that the GX7 is much more recent (by 2 years and 10 months) than the GH2, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of individual pixels.
For most cameras, data on sensor performance has been reported by DXO Mark. 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 GX7 has a markedly higher DXO score than the GH2 (overall score 10 points higher), which will translate into better image quality. The advantage is based on 1.4 bits higher color depth, 0.9 EV in additional dynamic range, and 0.1 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.
|Panasonic GH2 (⇒ rgt)||Four Thirds||15.9||4608||3456||1080/60i||21.2||11.3||655||60|
|Panasonic GX7 (⇒ lft)||Four Thirds||15.8||4592||3448||1080/60p||22.6||12.2||718||70|
|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|
|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 GM5 (⇒ lft | rgt)||Four Thirds||15.8||4592||3448||1080/60p||22.1||11.7||721||66|
|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|
|Panasonic GH3 (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/60p||22.7||12.4||812||71|
|Panasonic G3 (⇒ lft | rgt)||Four Thirds||15.8||4592||3448||1080/60i||21||10.6||667||56|
|Panasonic GX1 (⇒ lft | rgt)||Four Thirds||15.8||4592||3448||1080/60p||20.8||10.6||703||55|
|Panasonic G2 (⇒ lft | rgt)||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||493||53|
|Panasonic G10 (⇒ lft | rgt)||Four Thirds||12.0||4000||3000||720/30p||21.2||10.1||411||52|
|Panasonic GH1 (⇒ lft | rgt)||Four Thirds||12.0||4000||3000||1080/24p||21.6||11.6||772||64|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the GX7 provides a faster frame rate than the GH2. It can shoot movie footage at 1080/60p, while the GH2 is limited to 1080/60i.
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 GX7 offers a substantially higher resolution than the one in the GH2 (2760k vs 1534k dots). The following table reports on some other key feature differences and similarities of the Panasonic GH2, the Panasonic GX7, and comparable cameras. If needed, the dpreview camera hub, for example, contains further detail on the cameras' specs.
|Panasonic GH2 (⇒ rgt)||1534||no||3.0||460||swivel||no||4000||3.0||15.6||no|
|Panasonic GX7 (⇒ lft)||2760||no||3.0||1040||tilting||YES||8000||5.0||7||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|
|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 GM5 (⇒ lft | rgt)||1166||no||3.0||921||fixed||YES||500||5.8||no||no|
|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|
|Panasonic GH3 (⇒ lft | rgt)||1746||no||3.0||614||swivel||YES||4000||6.0||12||no|
|Panasonic G3 (⇒ lft | rgt)||1440||no||3.0||460||swivel||YES||4000||4.0||11||no|
|Panasonic GX1 (⇒ lft | rgt)||no||no||3.0||460||fixed||YES||4000||4.2||7.6||no|
|Panasonic G2 (⇒ lft | rgt)||1440||no||3.0||460||swivel||YES||4000||2.6||11||no|
|Panasonic G10 (⇒ lft | rgt)||202||no||3.0||460||fixed||no||4000||2.6||11||no|
|Panasonic GH1 (⇒ lft | rgt)||1440||no||3.0||460||swivel||no||4000||3.0||10.5||no|
Both the GH2 and the GX7 have been discontinued, but can regularly be found used on ebay. The GH2 was replaced by the Panasonic GH3, while the GX7 was followed by the Panasonic GX85.
So how do things add up? Which of the two cameras – the Panasonic GH2 or the Panasonic GX7 – has the upper hand? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the Panasonic Lumix DMC-GH2:
- More flexible LCD: Has swivel screen for odd-angle shots in portrait or landscape orientation.
- More heavily discounted: Has been available for much longer (launched in September 2010).
Arguments in favor of the Panasonic Lumix DMC-GX7:
- Better image quality: Scores markedly higher (10 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (1.4 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (0.9 EV of extra DR).
- Better video: Provides higher movie framerates (1080/60p vs 1080/60i).
- More detailed viewfinder: Has higher resolution electronic viewfinder (2760k vs 1534k dots).
- More detailed LCD: Has a higher resolution rear screen (1040k vs 460k dots).
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- Faster shutter: Has higher mechanical shutter speed (8000/sec vs 4000/sec) to freeze action.
- Faster burst: Shoots at higher frequency (5 vs 3 flaps/sec) to capture the decisive moment.
- More compact: Is smaller (123x71mm vs 124x90mm) and will fit more readily into a bag.
- Sharper images: Has stabilization technology build-in to reduce the impact of hand-shake.
- More affordable: Was introduced into a lower priced category (33 percent cheaper at launch).
- More modern: Reflects 2 years and 10 months of technical progress since the GH2 launch.
If the number of relative strengths (bullet points above) is taken as a guide, the GX7 is the clear winner of the contest (13 : 2 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 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 GH2 or the GX7 handle or perform in practice. 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 where reviews by experts come in. The table below summarizes the assessments of some of the best known camera review sites. The detailed reviews can be accessed, respectively, on the websites of cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.
|Panasonic GH2 (⇒ rgt)||86/100 HiRec||79/100 Silver||4.5/5||4.5/5||5/5||2010||1,499||discont.||check|
|Panasonic GX7 (⇒ lft)||Rec||79/100 Silver||5/5||4.5/5||5/5||2013||999||discont.||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|
|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 GM5 (⇒ lft | rgt)||Rec||77/100 Silver||5/5||5/5||4.5/5||2014||749||discont.||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|
|Panasonic GH3 (⇒ lft | rgt)||HiRec||79/100 Gold||4.5/5||5/5||4.5/5||2012||1,299||discont.||check|
|Panasonic G3 (⇒ lft | rgt)||88/100 HiRec||75/100 Silver||4.5/5||4.5/5||5/5||2011||599||discont.||check|
|Panasonic GX1 (⇒ lft | rgt)||85/100 Rec||77/100 Silver||4.5/5||4.5/5||4.5/5||2011||949||discont.||check|
|Panasonic G2 (⇒ lft | rgt)||-||72/100 Silver||4/5||4/5||4.5/5||2010||599||discont.||check|
|Panasonic G10 (⇒ lft | rgt)||-||70/100||4/5||-||4/5||2010||499||discont.||check|
|Panasonic GH1 (⇒ lft | rgt)||89/100 HiRec||72/100 HiRec||4.5/5||5/5||4.5/5||2009||1,499||discont.||check|
Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Hence, a score should always be seen in the context of the camera's market launch date and its price, 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.
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. If you cannot find the camera you are interested in, please send me an email, and I will try to add information on that model to the database.
- Canon 200D vs Canon 800D
- Canon 600D vs Canon G7 X
- Canon 760D vs Canon 6D
- Leica D-LUX Typ 109 vs Sony A7R III
- Olympus E-P1 vs Panasonic G5
- Olympus E-P5 vs Olympus E-M10
- Panasonic GH5 vs Canon 700D
- Panasonic LX15 vs Panasonic GX80
- Pentax 645Z vs Sony RX10 II
- Sony A6000 vs Canon 1D C
- Sony A7 II vs Olympus E-M5
- Sony RX100 V vs Canon 60D