Sony RX100 versus Panasonic GX850
The Sony Cyber-shot DSC-RX100 and the Panasonic Lumix DMC-GX850 (labelled Panasonic GX800 in some countries) are two digital cameras that were announced, respectively, in June 2012 and January 2017. The RX100 is a fixed lens compact, while the GX850 is a mirrorless interchangeable lens camera. The cameras are based on an one-inch (RX100) and a Four Thirds sensor. The Sony has a resolution of 20 megapixel, whereas the Panasonic provides 15.8 MP.
The physical size and weight of the Sony RX100 and the Panasonic GX850 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 RX100 – 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 GX850 is notably larger (18 percent) than the Sony RX100. In this context, it is worth noting that neither the RX100 nor the GX850 are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the RX100 has a lens build in, whereas the GX850 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 GX850 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 RX100 (⇒ rgt)||102 mm||58 mm||36 mm||240 g||330||no||2012||649||discont.||check|
|Panasonic GX850 (⇒ lft)||107 mm||65 mm||33 mm||269 g||210||no||2017||549||latest||check|
|Canon G7 X (⇒ lft | rgt)||103 mm||60 mm||40 mm||304 g||210||no||2014||699||discont.||check|
|Canon T5i (⇒ lft | rgt)||133 mm||100 mm||79 mm||580 g||440||no||2013||649||discont.||check|
|Canon SL1 (⇒ 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 GF7 (⇒ lft | rgt)||107 mm||65 mm||33 mm||266 g||230||no||2015||599||discont.||check|
|Panasonic G6 (⇒ lft | rgt)||122 mm||85 mm||71 mm||390 g||340||no||2013||599||discont.||check|
|Panasonic G5 (⇒ lft | rgt)||120 mm||83 mm||71 mm||396 g||320||no||2012||599||discont.||check|
|Panasonic G3 (⇒ lft | rgt)||115 mm||84 mm||47 mm||336 g||270||no||2011||599||discont.||check|
|Sony RX100 V (⇒ lft | rgt)||102 mm||58 mm||41 mm||299 g||220||no||2016||999||latest||check|
|Sony RX100 IV (⇒ lft | rgt)||102 mm||58 mm||41 mm||298 g||280||no||2015||999||discont.||check|
|Sony RX100 III (⇒ lft | rgt)||102 mm||58 mm||41 mm||290 g||320||no||2014||799||discont.||check|
|Sony A5100 (⇒ lft | rgt)||110 mm||63 mm||36 mm||283 g||400||no||2014||549||latest||check|
|Sony RX10 (⇒ lft | rgt)||129 mm||88 mm||102 mm||813 g||420||YES||2013||1,299||discont.||check|
|Sony RX100 II (⇒ lft | rgt)||102 mm||58 mm||38 mm||281 g||350||no||2013||749||discont.||check|
|Sony RX1R (⇒ lft | rgt)||113 mm||65 mm||70 mm||482 g||270||no||2013||2,799||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 associated with larger, more expensive camera bodies and lenses.
Of the two cameras under consideration, the Sony RX100 features an one-inch sensor and the Panasonic GX850 a Four Thirds sensor. The sensor area in the GX850 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 RX100 has a native 3:2 aspect ratio, while the one in the GX850 offers a 4:3 aspect.
Despite having a smaller sensor, the Sony RX100 offers a higher resolution of 20 megapixel, compared with 15.8 MP of the Panasonic GX850. This megapixel advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 2.41μm versus 3.77μm for the GX850). Moreover, it should be noted that the GX850 is much more recent (by 4 years and 7 months) than the RX100, 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 GX850 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
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.
|Sony RX100 (⇒ rgt)||1-inch||20.0||5472||3648||1080/60p||22.6||12.4||390||66|
|Panasonic GX850 (⇒ lft)||Four Thirds||15.8||4592||3448||4K/30p||..||..||..||..|
|Canon G7 X (⇒ lft | rgt)||1-inch||20.0||5472||3648||1080/60p||23.0||12.7||556||71|
|Canon T5i (⇒ lft | rgt)||APS-C||17.9||5184||3456||1080/30p||21.7||11.2||681||61|
|Canon SL1 (⇒ 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 GF7 (⇒ lft | rgt)||Four Thirds||15.8||4592||3448||1080/60p||-||-||-||-|
|Panasonic G6 (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/60p||21.3||11.5||639||61|
|Panasonic G5 (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/60p||-||-||-||-|
|Panasonic G3 (⇒ lft | rgt)||Four Thirds||15.8||4592||3448||1080/60i||21||10.6||667||56|
|Sony RX100 V (⇒ lft | rgt)||1-inch||20.0||5472||3648||4K/30p||22.8||12.4||586||70|
|Sony RX100 IV (⇒ lft | rgt)||1-inch||20.0||5472||3648||4K/30p||22.8||12.6||591||70|
|Sony RX100 III (⇒ lft | rgt)||1-inch||20.0||5472||3648||1080/60p||22.4||12.3||495||67|
|Sony A5100 (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60p||23.8||12.7||1347||80|
|Sony RX10 (⇒ lft | rgt)||1-inch||20.0||5472||3648||1080/60p||22.9||12.6||474||69|
|Sony RX100 II (⇒ lft | rgt)||1-inch||20.0||5472||3648||1080/60p||22.5||12.4||483||67|
|Sony RX1R (⇒ lft | rgt)||Full Frame||24.0||6000||4000||1080/60p||25.0||13.6||2537||91|
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 GX850 provides a better video resolution than the RX100. It can shoot movie footage at 4K/30p, while the Sony is limited to 1080/60p.
Beyond body and sensor, cameras can and do differ across a range of features. The RX100 and the GX850 are similar in the sense that neither of the two has a viewfinder. The images are, thus, framed using live view on the rear LCD. The following table reports on some other key feature differences and similarities of the Sony RX100, the Panasonic GX850, and comparable cameras. If you need more detail on the specs, you can find comprehensive listings, for example, in the dpreview camera hub.
|Sony RX100 (⇒ rgt)||no||no||3.0||1229||fixed||no||2000||10.0||YES||YES|
|Panasonic GX850 (⇒ lft)||no||no||3.0||1040||tilting||YES||500||10.0||4||no|
|Canon G7 X (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||2000||6.5||7||YES|
|Canon T5i (⇒ lft | rgt)||optical||no||3.0||1040||swivel||YES||4000||5.0||13||no|
|Canon SL1 (⇒ 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 GF7 (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||500||5.8||4||no|
|Panasonic G6 (⇒ lft | rgt)||1440||no||3.0||1036||swivel||YES||4000||7.0||10.5||no|
|Panasonic G5 (⇒ lft | rgt)||1440||no||3.0||920||swivel||YES||4000||6.0||10.5||no|
|Panasonic G3 (⇒ lft | rgt)||1440||no||3.0||460||swivel||YES||4000||4.0||11||no|
|Sony RX100 V (⇒ lft | rgt)||2359||no||3.0||1229||tilting||no||2000||24.0||10.2||YES|
|Sony RX100 IV (⇒ lft | rgt)||2359||no||3.0||1228||tilting||no||2000||16.0||10.2||YES|
|Sony RX100 III (⇒ lft | rgt)||1440||no||3.0||1229||tilting||no||2000||10.0||YES||YES|
|Sony A5100 (⇒ lft | rgt)||no||no||3.0||922||tilting||YES||4000||6.0||4||no|
|Sony RX10 (⇒ lft | rgt)||1440||YES||3.0||1229||tilting||no||3200||10.0||10.2||YES|
|Sony RX100 II (⇒ lft | rgt)||no||no||3.0||1229||tilting||no||2000||10.0||15||YES|
|Sony RX1R (⇒ lft | rgt)||no||no||3.0||1229||fixed||no||4000||5.0||6||no|
The GX850 is a current model that online retailers, such as amazon, will have in stock. In contrast, the RX100 has been discontinued (but it can be found pre-owned on ebay). As a replacement in the same line of cameras, the RX100 was succeeded by the Sony RX100 II.
So what conclusions can be drawn? Which of the two cameras – the Sony RX100 or the Panasonic GX850 – has the upper hand? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of the Sony Cyber-shot DSC-RX100:
- More detail: Offers more megapixels (20 vs 15.8MP) with a 15% higher linear resolution.
- 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 (1229k vs 1040k dots).
- Faster shutter: Has higher mechanical shutter speed (2000/sec vs 500/sec) to freeze action.
- Ready to shoot: Has a lens build-in, whereas the GX850 requires a separate lens.
- More compact: Is smaller (102x58mm vs 107x65mm) and thus needs less room in the bag.
- Less heavy: Is lighter even though it comes with a build-in lens (unlike the GX850).
- Longer lasting: Can take more shots (330 versus 210) on a single battery charge.
- More heavily discounted: Has been available for much longer (launched in June 2012).
Reasons to prefer the Panasonic Lumix DMC-GX850:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- 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 flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
- More modern: Reflects 4 years and 7 months of technical progress since the RX100 launch.
If the number of relative strengths (bullet points above) is taken as a guide, the RX100 emerges as the winner of the contest (9 : 7 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 RX100 and the GX850 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.
|Sony RX100 (⇒ rgt)||HiRec||78/100 Silver||4/5||5/5||5/5||2012||649||discont.||check|
|Panasonic GX850 (⇒ lft)||Rec||76/100||4.5/5||-||4.5/5||2017||549||latest||check|
|Canon G7 X (⇒ lft | rgt)||HiRec||77/100 Silver||4.5/5||3.5/5||4.5/5||2014||699||discont.||check|
|Canon T5i (⇒ lft | rgt)||-||76/100 Silver||4.5/5||4.5/5||4.5/5||2013||649||discont.||check|
|Canon SL1 (⇒ 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 GF7 (⇒ lft | rgt)||Rec||-||4.5/5||4.5/5||4.5/5||2015||599||discont.||check|
|Panasonic G6 (⇒ lft | rgt)||HiRec||-||5/5||-||4.5/5||2013||599||discont.||check|
|Panasonic G5 (⇒ lft | rgt)||HiRec||-||4.5/5||4.5/5||4.5/5||2012||599||discont.||check|
|Panasonic G3 (⇒ lft | rgt)||88/100 HiRec||75/100 Silver||4.5/5||4.5/5||5/5||2011||599||discont.||check|
|Sony RX100 V (⇒ lft | rgt)||HiRec||83/100 Silver||4/5||5/5||4.5/5||2016||999||latest||check|
|Sony RX100 IV (⇒ lft | rgt)||HiRec||85/100 Gold||4/5||4.5/5||4.5/5||2015||999||discont.||check|
|Sony RX100 III (⇒ lft | rgt)||HiRec||82/100 Gold||4.5/5||4.5/5||5/5||2014||799||discont.||check|
|Sony A5100 (⇒ lft | rgt)||Rec||-||4.5/5||4.5/5||5/5||2014||549||latest||check|
|Sony RX10 (⇒ lft | rgt)||Rec||80/100 Gold||4.5/5||4.5/5||4.5/5||2013||1,299||discont.||check|
|Sony RX100 II (⇒ lft | rgt)||HiRec||79/100 Silver||4.5/5||5/5||4.5/5||2013||749||discont.||check|
|Sony RX1R (⇒ lft | rgt)||-||-||4/5||reviewed||4.5/5||2013||2,799||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.
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