Sony RX10 IV versus Panasonic G9
The Sony Cyber-shot DSC-RX10 IV and the Panasonic Lumix DC-G9 are two enthusiast cameras that were revealed to the public, respectively, in September 2017 and November 2017. The RX10 IV is a fixed lens compact, while the G9 is a mirrorless interchangeable lens camera. The cameras are based on an one-inch (RX10 IV) and a Four Thirds sensor. The Sony has a resolution of 20 megapixel, whereas the Panasonic provides 20.2 MP.
The physical size and weight of the Sony RX10 IV 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 size dimensions are rounded to the nearest millimeter. You can also use the toggle button 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 RX10 IV – 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 G9 is somewhat larger (6 percent) than the Sony RX10 IV. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the RX10 IV has a lens build in, whereas the G9 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can find an overview of optics for the G9 and their specifications in the Micro Four Thirds Lens Catalog.
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
|Sony RX10 IV (⇒ rgt)||133 mm||94 mm||145 mm||1095 g||400||YES||2017||1,699||latest||check|
|Panasonic G9 (⇒ lft)||137 mm||97 mm||92 mm||658 g||400||YES||2017||1,699||latest||check|
|Canon G1 X Mark III (⇒ lft | rgt)||115 mm||78 mm||51 mm||399 g||200||YES||2017||1,299||latest||check|
|Fujifilm X-Pro2 (⇒ lft | rgt)||141 mm||83 mm||46 mm||495 g||350||YES||2016||1,699||latest||check|
|Fujifilm X-T2 (⇒ lft | rgt)||133 mm||92 mm||49 mm||507 g||340||YES||2016||1,599||latest||check|
|Nikon D500 (⇒ lft | rgt)||147 mm||115 mm||81 mm||860 g||1240||YES||2016||1,999||latest||check|
|Olympus E-M1 II (⇒ lft | rgt)||134 mm||91 mm||67 mm||574 g||440||YES||2016||1,999||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 GX8 (⇒ lft | rgt)||133 mm||78 mm||63 mm||487 g||330||YES||2015||1,199||latest||check|
|Sony A6300 (⇒ lft | rgt)||120 mm||67 mm||49 mm||404 g||400||YES||2016||999||discont.||check|
|Sony A6500 (⇒ lft | rgt)||120 mm||67 mm||53 mm||453 g||350||YES||2016||1,399||latest||check|
|Sony RX10 III (⇒ lft | rgt)||133 mm||94 mm||127 mm||1051 g||420||YES||2016||1,499||discont.||check|
|Sony RX100 V (⇒ lft | rgt)||102 mm||58 mm||41 mm||299 g||220||no||2016||999||latest||check|
|Sony RX10 II (⇒ lft | rgt)||129 mm||88 mm||102 mm||813 g||400||YES||2015||1,299||discont.||check|
|Sony RX10 (⇒ lft | rgt)||129 mm||88 mm||102 mm||813 g||420||YES||2013||1,299||discont.||check|
The listed prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. 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 more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Sony RX10 IV features an one-inch sensor and the Panasonic G9 a Four Thirds sensor. The sensor area in the G9 is 94 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.7 and 2.0. The sensor in the RX10 IV has a native 3:2 aspect ratio, while the one in the G9 offers a 4:3 aspect.
With 20.2MP, the G9 offers a higher resolution than the RX10 IV (20MP), but the G9 nevertheless has larger individual pixels (pixel pitch of 3.34μm versus 2.41μm for the RX10 IV) due to its larger sensor. It is noteworthy in this context that the two cameras were released in close succession, so that their sensors are from the same technological generation. 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 RX10 IV, 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).
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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.
|Sony RX10 IV (⇒ rgt)||1-inch||20.0||5472||3648||4K/30p||..||..||..||..|
|Panasonic G9 (⇒ lft)||Four Thirds||20.2||5184||3888||4K/60p||-||-||-||-|
|Canon G1 X Mark III (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60p||..||..||..||..|
|Fujifilm X-Pro2 (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60p||-||-||-||-|
|Fujifilm X-T2 (⇒ lft | rgt)||APS-C||24.0||6000||4000||4K/30p||-||-||-||-|
|Nikon D500 (⇒ lft | rgt)||APS-C||20.7||5568||3712||4K/30p||24.0||14.0||1324||83|
|Olympus E-M1 II (⇒ lft | rgt)||Four Thirds||20.2||5184||3888||4K/30p||23.7||12.8||1312||80|
|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 GX8 (⇒ lft | rgt)||Four Thirds||20.2||5184||3888||4K/30p||23.5||12.6||806||75|
|Sony A6300 (⇒ lft | rgt)||APS-C||24.0||6000||4000||4K/30p||24.4||13.7||1437||85|
|Sony A6500 (⇒ lft | rgt)||APS-C||24.0||6000||4000||4K/30p||24.5||13.7||1405||85|
|Sony RX10 III (⇒ lft | rgt)||1-inch||20.0||5472||3648||4K/30p||23.1||12.6||472||70|
|Sony RX100 V (⇒ lft | rgt)||1-inch||20.0||5472||3648||4K/30p||22.8||12.4||586||70|
|Sony RX10 II (⇒ lft | rgt)||1-inch||20.0||5472||3648||4K/30p||23.0||12.6||531||70|
|Sony RX10 (⇒ lft | rgt)||1-inch||20.0||5472||3648||1080/60p||22.9||12.6||474||69|
Many modern cameras are not only capable of taking still images, but can also record movies. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the G9 provides a faster frame rate than the RX10 IV. It can shoot movie footage at 4K/60p, while the Sony is limited to 4K/30p.
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 substantially higher resolution than the one in the RX10 IV (3680k vs 2359k dots). The table below summarizes some of the other core capabilities of the Sony RX10 IV and Panasonic G9 in connection with corresponding information for a sample of similar cameras. If needed, the dpreview camera hub, for example, contains further detail on the cameras' specs.
|Sony RX10 IV (⇒ rgt)||2359||YES||3.0||1440||tilting||YES||2000||24.0||10.8||no|
|Panasonic G9 (⇒ lft)||3680||YES||3.0||1040||swivel||YES||8000||20.0||no||YES|
|Canon G1 X Mark III (⇒ lft | rgt)||2360||no||3.0||1040||swivel||YES||2000||9.0||9||no|
|Fujifilm X-Pro2 (⇒ lft | rgt)||2360||no||3.0||1620||fixed||no||8000||8.0||no||no|
|Fujifilm X-T2 (⇒ lft | rgt)||2360||no||3.0||1040||tilting||no||8000||14.0||no||no|
|Nikon D500 (⇒ lft | rgt)||optical||YES||3.2||2359||tilting||YES||8000||10.0||no||no|
|Olympus E-M1 II (⇒ lft | rgt)||2360||no||3.0||1037||swivel||YES||8000||18.0||no||YES|
|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 GX8 (⇒ lft | rgt)||2360||no||3.0||1040||swivel||YES||8000||10.0||no||YES|
|Sony A6300 (⇒ lft | rgt)||2300||no||3.0||922||tilting||no||4000||11.0||6||no|
|Sony A6500 (⇒ lft | rgt)||2300||no||3.0||922||tilting||YES||4000||11.0||6||YES|
|Sony RX10 III (⇒ lft | rgt)||2359||YES||3.0||1229||tilting||no||2000||14.0||10.8||no|
|Sony RX100 V (⇒ lft | rgt)||2359||no||3.0||1229||tilting||no||2000||24.0||10.2||no|
|Sony RX10 II (⇒ lft | rgt)||2359||YES||3.0||1229||tilting||no||3200||14.0||10.2||no|
|Sony RX10 (⇒ lft | rgt)||1440||YES||3.0||1229||tilting||no||3200||10.0||10.2||no|
Both the RX10 IV and the G9 are current models that good online retailers will have in stock. You can check the latest prices, for example, at amazon. The RX10 IV replaced the earlier Sony RX10 III, while the G9 followed on from the Panasonic G85.
So how do things add up? Is there a clear favorite between the Sony RX10 IV and the Sony RX10 IV? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Sony Cyber-shot DSC-RX10 IV:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- More detailed LCD: Has a higher resolution rear screen (1440k vs 1040k dots).
- Faster burst: Shoots at higher frequency (24 vs 20 flaps/sec) to capture the decisive moment.
- Ready to shoot: Has a lens build-in, whereas the G9 requires a separate lens.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
Advantages of the Panasonic Lumix DC-G9:
- 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 low-light imaging: Features bigger pixels on a larger sensor for better high-ISO images.
- Better video: Provides higher movie framerates (4K/60p vs 4K/30p).
- More detailed viewfinder: Has a higher resolution electronic viewfinder (3680k vs 2359k dots).
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- Faster shutter: Has a higher mechanical shutter speed (8000/sec vs 2000/sec) to freeze action.
- More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
- Sharper images: Has stabilization technology build-in to reduce the impact of hand-shake.
If the count of individual advantages (bullet points above) is taken as a guide, the G9 is the clear winner of the contest (9 : 5 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 says nothing about, for example, the handling, responsiveness, and overall imaging quality of the RX10 IV 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 hands-on reviews by experts are important. 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.
|Sony RX10 IV (⇒ rgt)||Rec||84/100 Gold||4.5/5||..||..||2017||1,699||latest||check|
|Panasonic G9 (⇒ lft)||..||..||..||..||..||2017||1,699||latest||check|
|Canon G1 X Mark III (⇒ lft | rgt)||..||..||..||..||..||2017||1,299||latest||check|
|Fujifilm X-Pro2 (⇒ lft | rgt)||Rec||83/100 Silver||4.5/5||4.5/5||4.5/5||2016||1,699||latest||check|
|Fujifilm X-T2 (⇒ lft | rgt)||HiRec||86/100 Gold||4.5/5||5/5||5/5||2016||1,599||latest||check|
|Nikon D500 (⇒ lft | rgt)||HiRec||91/100 Gold||4.5/5||5/5||5/5||2016||1,999||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|
|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 GX8 (⇒ lft | rgt)||Rec||82/100 Silver||4.5/5||5/5||4.5/5||2015||1,199||latest||check|
|Sony A6300 (⇒ lft | rgt)||Rec||85/100 Gold||5/5||5/5||5/5||2016||999||discont.||check|
|Sony A6500 (⇒ lft | rgt)||HiRec||85/100 Silver||4.5/5||5/5||4.5/5||2016||1,399||latest||check|
|Sony RX10 III (⇒ lft | rgt)||Rec||84/100 Silver||4.5/5||4.5/5||4.5/5||2016||1,499||discont.||check|
|Sony RX100 V (⇒ lft | rgt)||HiRec||83/100 Silver||4/5||5/5||4.5/5||2016||999||latest||check|
|Sony RX10 II (⇒ lft | rgt)||HiRec||82/100 Gold||4.5/5||4.5/5||4/5||2015||1,299||discont.||check|
|Sony RX10 (⇒ lft | rgt)||Rec||80/100 Gold||4.5/5||4.5/5||4.5/5||2013||1,299||discont.||check|
The above review scores should be interpreted with care, though. The ratings are only valid when refering to cameras in the same category and of the same age. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.
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