Panasonic GM5 versus Panasonic G7
The Panasonic Lumix DMC-GM5 and the Panasonic Lumix DMC-G7 are two digital cameras that were announced, respectively, in September 2014 and May 2015. Both the GM5 and the G7 are mirrorless interchangeable lens cameras that are equipped with a Four Thirds sensor. Both cameras offer a resolution of 15.8 megapixel.
An illustration of the physical size and weight of the Panasonic GM5 and the Panasonic G7 is provided in the side-by-side display below. Three consecutive perspectives from the front, the top, and the back are presented. All size dimensions are rounded to the nearest millimeter. If you prefer, you can also use the toggle button to switch to a comparison in percentage terms (in this case, the camera on the left side – the GM5 – 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 G7 is considerably larger (81 percent) than the Panasonic GM5. Moreover, the G7 is substantially heavier (94 percent) than the GM5. In this context, it is worth noting that neither the GM5 nor the G7 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 GM5 (⇒ rgt)||99 mm||60 mm||36 mm||211 g||220||no||2014||749||discont.||check|
|Panasonic G7 (⇒ lft)||125 mm||86 mm||77 mm||410 g||350||no||2015||649||discont.||check|
|Canon G1 X Mark II (⇒ lft | rgt)||116 mm||74 mm||66 mm||553 g||240||no||2014||799||latest||check|
|Olympus E-M10 II (⇒ lft | rgt)||120 mm||83 mm||47 mm||390 g||320||no||2015||799||discont.||check|
|Olympus E-M10 (⇒ lft | rgt)||119 mm||82 mm||46 mm||396 g||320||no||2014||699||discont.||check|
|Panasonic GX850 (⇒ lft | rgt)||107 mm||65 mm||33 mm||269 g||210||no||2017||549||latest||check|
|Panasonic G85 (⇒ lft | rgt)||128 mm||89 mm||74 mm||505 g||330||YES||2016||899||latest||check|
|Panasonic FZ1000 (⇒ lft | rgt)||137 mm||99 mm||131 mm||831 g||360||no||2014||899||discont.||check|
|Panasonic GH4 (⇒ lft | rgt)||133 mm||93 mm||84 mm||560 g||500||YES||2014||1,499||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|
|Ricoh GR II (⇒ lft | rgt)||117 mm||63 mm||35 mm||251 g||320||no||2015||699||discont.||check|
|Ricoh GR (⇒ lft | rgt)||117 mm||61 mm||35 mm||245 g||290||no||2013||799||discont.||check|
The listed prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The G7 was launched at a somewhat lower price (by 13 percent) than the GM5, 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 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. 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 are more costly to manufacture and tent to lead to bigger and heavier cameras 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 megapixel. This similarity in sensor specs implies that both the GM5 and the G7 have the same pixel density, as well as the same pixel size. It should, however, be noted that the G7 is a somewhat more recent model (by 8 months) than the GM5, and its sensor might have benefitted from technological advances during this time.
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"). The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
|Panasonic GM5 (⇒ rgt)||Four Thirds||15.8||4592||3448||1080/60p||22.1||11.7||721||66|
|Panasonic G7 (⇒ lft)||Four Thirds||15.8||4592||3448||4K/30p||-||-||-||-|
|Canon G1 X Mark II (⇒ lft | rgt)||1.5-inch||13.0||4160||3120||1080/30p||21.5||10.8||581||58|
|Olympus E-M10 II (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/60p||23.1||12.5||842||73|
|Olympus E-M10 (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/30p||22.8||12.3||884||72|
|Panasonic GX850 (⇒ lft | rgt)||Four Thirds||15.8||4592||3448||4K/30p||..||..||..||..|
|Panasonic G85 (⇒ lft | rgt)||Four Thirds||15.8||4592||3448||4K/30p||22.8||12.5||656||71|
|Panasonic FZ1000 (⇒ lft | rgt)||1-inch||20.0||5472||3648||4K/30p||22.1||11.7||517||64|
|Panasonic GH4 (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||4K/30p||23.2||12.8||791||74|
|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|
|Ricoh GR II (⇒ lft | rgt)||APS-C||16.1||4928||3264||1080/30p||23.6||13.7||1078||80|
|Ricoh GR (⇒ lft | rgt)||APS-C||16.1||4928||3264||1080/30p||23.6||13.5||972||78|
Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the G7 provides a better video resolution than the GM5. It can shoot movie footage at 4K/30p, while the GM5 is limited to 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 G7 offers a substantially higher resolution than the one in the GM5 (2360k vs 1166k dots). The adjacent table lists some of the other core features of the Panasonic GM5 and Panasonic G7 along with similar information for a selection of comparators. The full specs-sheets can be found in the camera manual or, for example, in the dpreview camera hub.
|Panasonic GM5 (⇒ rgt)||1166||no||3.0||921||fixed||YES||500||5.8||no||no|
|Panasonic G7 (⇒ lft)||2360||no||3.0||1040||swivel||YES||4000||7.0||9.3||no|
|Canon G1 X Mark II (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||4000||5.2||6.8||YES|
|Olympus E-M10 II (⇒ lft | rgt)||2360||no||3.0||1040||tilting||YES||4000||8.0||5.8||YES|
|Olympus E-M10 (⇒ lft | rgt)||1440||no||3.0||1037||tilting||YES||4000||8.0||5.8||YES|
|Panasonic GX850 (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||500||10.0||4||no|
|Panasonic G85 (⇒ lft | rgt)||2360||no||3.0||1040||swivel||YES||4000||9.0||6.2||YES|
|Panasonic FZ1000 (⇒ lft | rgt)||2359||no||3.0||921||swivel||no||4000||12.0||13.5||YES|
|Panasonic GH4 (⇒ lft | rgt)||2359||no||3.0||1036||swivel||YES||8000||12.0||17||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|
|Ricoh GR II (⇒ lft | rgt)||no||no||3.0||1230||fixed||no||4000||4.0||3||no|
|Ricoh GR (⇒ lft | rgt)||no||no||3.0||1230||fixed||no||4000||4.0||5.4||no|
Both the GM5 and the G7 have been discontinued, but can regularly be found used on ebay. The GM5 was replaced by the .., while the G7 was followed by the Panasonic G85.
So what conclusions can be drawn? Is there a clear favorite between the Panasonic GM5 and the Panasonic GM5? A synthesis of the relative strong points of each of the models is listed below.
Advantages of the Panasonic Lumix DMC-GM5:
- More compact: Is smaller (99x60mm vs 125x86mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 199g or 49 percent) and hence easier to carry around.
- More heavily discounted: Has been on the market for longer (launched in September 2014).
Arguments in favor of the Panasonic Lumix DMC-G7:
- Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
- More detailed viewfinder: Has higher resolution electronic viewfinder (2360k vs 1166k dots).
- More detailed LCD: Has a higher resolution rear screen (1040k vs 921k dots).
- More flexible LCD: Has swivel screen for odd-angle shots in portrait or landscape orientation.
- Faster shutter: Has higher mechanical shutter speed (4000/sec vs 500/sec) to freeze action.
- Faster burst: Shoots at higher frequency (7 vs 5.8 flaps/sec) to capture the decisive moment.
- Longer lasting: Gets more shots (350 versus 220) out of a single battery charge.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- More affordable: Was released into a lower priced segment (13 percent cheaper at launch).
- More modern: Was introduced somewhat (8 months) more recently.
If the count of relative strengths (bullet points above) is taken as a measure, the G7 is the clear winner of the contest (10 : 3 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features.
In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the handling experience and imaging performance when actually working with the GM5 or the G7. 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 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 GM5 (⇒ rgt)||Rec||77/100 Silver||5/5||5/5||4.5/5||2014||749||discont.||check|
|Panasonic G7 (⇒ lft)||HiRec||80/100 Silver||5/5||4.5/5||4.5/5||2015||649||discont.||check|
|Canon G1 X Mark II (⇒ lft | rgt)||Rec||77/100 Silver||4/5||4/5||4.5/5||2014||799||latest||check|
|Olympus E-M10 II (⇒ lft | rgt)||HiRec||80/100 Silver||5/5||5/5||5/5||2015||799||discont.||check|
|Olympus E-M10 (⇒ lft | rgt)||-||80/100 Gold||5/5||4.5/5||5/5||2014||699||discont.||check|
|Panasonic GX850 (⇒ lft | rgt)||Rec||76/100||4.5/5||-||4.5/5||2017||549||latest||check|
|Panasonic G85 (⇒ lft | rgt)||HiRec||84/100 Gold||5/5||4.5/5||4.5/5||2016||899||latest||check|
|Panasonic FZ1000 (⇒ lft | rgt)||HiRec||82/100 Gold||4.5/5||4.5/5||4.5/5||2014||899||discont.||check|
|Panasonic GH4 (⇒ lft | rgt)||HiRec||85/100 Gold||5/5||5/5||5/5||2014||1,499||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|
|Ricoh GR II (⇒ lft | rgt)||-||-||4.5/5||4.5/5||4.5/5||2015||699||discont.||check|
|Ricoh GR (⇒ lft | rgt)||-||79/100 Gold||4.5/5||4.5/5||4.5/5||2013||799||discont.||check|
Care should be taken when interpreting the review scores above, though. The ratings are only valid when refering to cameras in the same category and of the same age. Hence, a score should always be seen in the context of the camera's market launch date and its price, 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.
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. If the camera you are interested in is not available, please contact me, and I will try to add information on that model to the database.
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