Panasonic G5 versus Sony A7R III
The Panasonic Lumix DMC-G5 and the Sony Alpha A7R III are two digital cameras that were announced, respectively, in July 2012 and October 2017. Both the G5 and the A7R III are mirrorless interchangeable lens cameras that are based on a Four Thirds (G5) and a full frame sensor. The Panasonic has a resolution of 15.9 megapixel, whereas the Sony provides 42.2 MP.
The side-by-side display below illustrates the physical size and weight of the Panasonic G5 and the Sony A7R III. 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. 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 – the G5 – 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 Sony A7R III is notably larger (22 percent) than the Panasonic G5. Moreover, the A7R III is substantially heavier (64 percent) than the G5. It is noteworthy in this context that the A7R III is splash and dust-proof, while the G5 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. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can find an overview of optics for the two cameras in the Micro Four Thirds Lens Catalog (G5) and the Sony FE Lens Catalog (A7R III). 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 G5 (⇒ rgt)||120 mm||83 mm||71 mm||396 g||320||no||2012||599||discont.||check|
|Sony A7R III (⇒ lft)||127 mm||96 mm||74 mm||650 g||650||YES||2017||3,199||latest||check|
|Canon 100D (⇒ lft | rgt)||117 mm||91 mm||69 mm||407 g||380||no||2013||549||discont.||check|
|Panasonic G7 (⇒ lft | rgt)||125 mm||86 mm||77 mm||410 g||350||no||2015||649||discont.||check|
|Panasonic GF6 (⇒ lft | rgt)||111 mm||65 mm||38 mm||323 g||340||no||2013||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|
|Panasonic G3 (⇒ lft | rgt)||115 mm||84 mm||47 mm||336 g||270||no||2011||599||discont.||check|
|Panasonic GX1 (⇒ lft | rgt)||116 mm||68 mm||39 mm||318 g||320||no||2011||949||discont.||check|
|Panasonic GH2 (⇒ lft | rgt)||124 mm||90 mm||76 mm||442 g||330||no||2010||1,499||discont.||check|
|Panasonic G2 (⇒ lft | rgt)||124 mm||84 mm||74 mm||428 g||360||no||2010||599||discont.||check|
|Panasonic G10 (⇒ lft | rgt)||124 mm||84 mm||74 mm||388 g||380||no||2010||499||discont.||check|
|Sony A7 III (⇒ lft | rgt)||127 mm||96 mm||74 mm||650 g||610||YES||2018||1,999||latest||check|
|Sony A99 II (⇒ lft | rgt)||143 mm||104 mm||76 mm||849 g||490||YES||2016||3,199||latest||check|
|Sony A7R II (⇒ lft | rgt)||127 mm||96 mm||60 mm||625 g||290||YES||2015||3,199||discont.||check|
|Sony A7 II (⇒ lft | rgt)||127 mm||96 mm||60 mm||599 g||350||YES||2014||1,999||discont.||check|
|Sony A7R (⇒ lft | rgt)||127 mm||94 mm||48 mm||465 g||340||YES||2013||2,299||discont.||check|
The listed prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The G5 was launched at a markedly lower price (by 81 percent) than the A7R III, 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 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 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 are more costly to manufacture and tent to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Panasonic G5 features a Four Thirds sensor and the Sony A7R III a full frame sensor. The sensor area in the A7R III is 283 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 G5 has a native 4:3 aspect ratio, while the one in the A7R III offers a 3:2 aspect.
With 42.2MP, the A7R III offers a higher resolution than the G5 (15.9MP), but the A7R III nevertheless has larger individual pixels (pixel pitch of 4.52μm versus 3.76μm for the G5) due to its larger sensor. Moreover, the A7R III is a much more recent model (by 5 years and 3 months) than the G5, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the A7R III has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
Unlike the G5, the A7R III has the capacity to capture high quality composite images 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).
Consistent information on actual sensor performance is available from DXO Mark for most cameras. 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.
|Panasonic G5 (⇒ rgt)||Four Thirds||15.9||4608||3456||1080/60p||-||-||-||-|
|Sony A7R III (⇒ lft)||Full Frame||42.2||7952||5304||4K/30p||26.0||14.7||3523||100|
|Canon 100D (⇒ lft | rgt)||APS-C||17.9||5184||3456||1080/30p||21.8||11.3||843||63|
|Panasonic G7 (⇒ lft | rgt)||Four Thirds||15.8||4592||3448||4K/30p||-||-||-||-|
|Panasonic GF6 (⇒ lft | rgt)||Four Thirds||15.8||4592||3448||1080/60i||20.7||10.6||622||54|
|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 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 GH2 (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/60i||21.2||11.3||655||60|
|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|
|Sony A7 III (⇒ lft | rgt)||Full Frame||24.0||6000||4000||4K/30p||..||..||..||..|
|Sony A99 II (⇒ lft | rgt)||Full Frame||42.2||7952||5304||4K/30p||25.4||13.4||2317||92|
|Sony A7R II (⇒ lft | rgt)||Full Frame||42.2||7952||5304||4K/30p||26.0||13.9||3434||98|
|Sony A7 II (⇒ lft | rgt)||Full Frame||24.0||6000||4000||1080/60p||24.9||13.6||2449||90|
|Sony A7R (⇒ lft | rgt)||Full Frame||36.2||7360||4912||1080/60p||25.6||14.1||2746||95|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the A7R III provides a better video resolution than the G5. It can shoot movie footage at 4K/30p, while the Panasonic 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 A7R III offers a substantially higher resolution than the one in the G5 (3686k vs 1440k dots). The following table reports on some other key feature differences and similarities of the Panasonic G5, the Sony A7R III, and comparable cameras. If needed, the dpreview camera hub, for example, contains further detail on the cameras' specs.
|Panasonic G5 (⇒ rgt)||1440||no||3.0||920||swivel||YES||4000||6.0||10.5||no|
|Sony A7R III (⇒ lft)||3686||no||3.0||1440||tilting||YES||8000||10.0||no||YES|
|Canon 100D (⇒ lft | rgt)||optical||no||3.0||1040||fixed||YES||4000||4.9||9.4||no|
|Panasonic G7 (⇒ lft | rgt)||2360||no||3.0||1040||swivel||YES||4000||7.0||9.3||no|
|Panasonic GF6 (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||4000||4.2||6.3||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 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 GH2 (⇒ lft | rgt)||1534||no||3.0||460||swivel||no||4000||3.0||15.6||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|
|Sony A7 III (⇒ lft | rgt)||2359||no||3.0||922||tilting||YES||8000||10||no||YES|
|Sony A99 II (⇒ lft | rgt)||2400||YES||3.0||1229||full-flex||no||8000||12.0||no||YES|
|Sony A7R II (⇒ lft | rgt)||2400||no||3.0||1229||tilting||no||8000||5.0||no||YES|
|Sony A7 II (⇒ lft | rgt)||2400||no||3.0||1230||tilting||no||8000||5.0||no||YES|
|Sony A7R (⇒ lft | rgt)||2400||no||3.0||1230||tilting||no||8000||4.0||no||no|
The A7R III is a current model that online retailers, such as amazon, will have in stock. In contrast, the G5 has been discontinued (but it can be found pre-owned on ebay). As a replacement in the same line of cameras, the G5 was succeeded by the Panasonic G6.
So what is the bottom line? Is there a clear favorite between the Panasonic G5 and the Panasonic G5? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Panasonic Lumix DMC-G5:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- More flexible LCD: Has swivel screen for odd-angle shots in portrait or landscape orientation.
- More compact: Is smaller (120x83mm vs 127x96mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 254g 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 (81 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in July 2012).
Reasons to prefer the Sony Alpha A7R III:
- More detail: Has more megapixels (42.2 vs 15.9MP), which boosts linear resolution by 66%.
- 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 image quality: Is equipped with a larger and more technologically advanced sensor.
- Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
- More detailed viewfinder: Has higher resolution electronic viewfinder (3686k vs 1440k dots).
- More detailed LCD: Has a higher resolution rear screen (1440k vs 920k dots).
- Faster shutter: Has higher mechanical shutter speed (8000/sec vs 4000/sec) to freeze action.
- Faster burst: Shoots at higher frequency (10 vs 6 flaps/sec) to capture the decisive moment.
- Longer lasting: Gets more shots (650 versus 320) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Sharper images: Has stabilization technology build-in to reduce the impact of hand-shake.
- More modern: Reflects 5 years and 3 months of technical progress since the G5 launch.
If the count of individual advantages (bullet points above) is taken as a guide, the A7R III is the clear winner of the contest (13 : 7 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 technical specifications can provide a useful overview of the capabilities of different cameras, it remains partial and cannot reveal, for example, the handling experience and imaging performance when actually working with the G5 or the A7R III. 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 full reviews are available, respectively, at cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.
|Panasonic G5 (⇒ rgt)||HiRec||-||4.5/5||4.5/5||4.5/5||2012||599||discont.||check|
|Sony A7R III (⇒ lft)||HiRec||90/100 Gold||4.5/5||5/5||5/5||2017||3,199||latest||check|
|Canon 100D (⇒ lft | rgt)||Rec||78/100 Gold||4/5||4/5||4/5||2013||549||discont.||check|
|Panasonic G7 (⇒ lft | rgt)||HiRec||80/100 Silver||5/5||4.5/5||4.5/5||2015||649||discont.||check|
|Panasonic GF6 (⇒ lft | rgt)||HiRec||-||4.5/5||-||4.5/5||2013||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|
|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 GH2 (⇒ lft | rgt)||86/100 HiRec||79/100 Silver||4.5/5||4.5/5||5/5||2010||1,499||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|
|Sony A7 III (⇒ lft | rgt)||HiRec||..||..||..||..||2018||1,999||latest||check|
|Sony A99 II (⇒ lft | rgt)||-||85/100 Silver||4.5/5||4.5/5||4.5/5||2016||3,199||latest||check|
|Sony A7R II (⇒ lft | rgt)||HiRec||90/100 Gold||5/5||4.5/5||5/5||2015||3,199||discont.||check|
|Sony A7 II (⇒ lft | rgt)||Rec||82/100 Silver||4.5/5||5/5||5/5||2014||1,999||discont.||check|
|Sony A7R (⇒ lft | rgt)||HiRec||82/100 Gold||4.5/5||5/5||5/5||2013||2,299||discont.||check|
The review scores listed above should be treated with care, though. The ratings are only valid when refering to cameras in the same category and of the same age. 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. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.
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 do not see the camera that you are looking for, please contact me, and I will try to update the database with the necessary infos.
- Canon 1D vs Canon M100
- Canon 2000D vs Canon 800D
- Canon 200D vs Leica S2
- Canon 40D vs Nikon W300
- Canon 700D vs Leica SL
- Canon 77D vs Panasonic FZ300
- Canon M100 vs Canon 1200D
- Nikon D800E vs Fujifilm X-T2
- Olympus E-520 vs Canon 7D
- Panasonic GX8 vs Canon 6D
- Sony A6500 vs Olympus E-M1 II
- Sony RX1R II vs Sony RX100 V