Panasonic LX100 vs Sony RX10 III
The Panasonic Lumix DMC-LX100 and the Sony Cyber-shot DSC-RX10 III are two enthusiast cameras that were revealed to the public, respectively, in September 2014 and March 2016. Both the LX100 and the RX10 III are fixed lens compact cameras that are based on a Four Thirds (LX100) and an one-inch (RX10 III) sensor. The Panasonic has a resolution of 12.7 megapixels, whereas the Sony provides 20 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DMC-LX100 and the Sony Cyber-shot DSC-RX10 III? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.
The physical size and weight of the Panasonic LX100 and the Sony RX10 III are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth measures are rounded to the nearest millimeter.
The LX100 can be obtained in two different colors (black, silver), while the RX10 III is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony RX10 III is considerably larger (65 percent) than the Panasonic LX100. Moreover, the RX10 III is substantially heavier (167 percent) than the LX100. It is noteworthy in this context that the RX10 III is splash and dust-proof, while the LX100 does not feature any corresponding weather-sealing.
Concerning battery life, the LX100 gets 300 shots out of its DMW-BLG10 battery, while the RX10 III can take 420 images on a single charge of its NP-FW50 power pack. The power pack in the RX10 III can be charged via the USB port, which can be very convenient when travelling.
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.
|Panasonic LX100||4.5 in||2.6 in||2.2 in||13.9 oz||300||n||Sep 2014||899|
|Sony RX10 III||5.2 in||3.7 in||5.0 in||37.1 oz||420||Y||Mar 2016||1,499|
|Canon G1 X Mark II||4.6 in||2.9 in||2.6 in||19.5 oz||240||n||Feb 2014||799|
|Leica D-LUX Typ 109||4.6 in||2.6 in||2.2 in||14.3 oz||300||n||Sep 2014||1,195|
|Panasonic LX100 II||4.5 in||2.6 in||2.6 in||13.8 oz||300||n||Aug 2018||999|
|Panasonic FZ1000||5.4 in||3.9 in||5.2 in||29.3 oz||360||n||Jun 2014||899|
|Panasonic GM5||3.9 in||2.4 in||1.4 in||7.4 oz||220||n||Sep 2014||749|
|Panasonic G6||4.8 in||3.3 in||2.8 in||13.8 oz||340||n||Apr 2013||599|
|Panasonic GM1||3.9 in||2.2 in||1.2 in||7.2 oz||230||n||Oct 2013||749|
|Panasonic GX7||4.8 in||2.8 in||2.2 in||14.2 oz||350||n||Aug 2013||999|
|Panasonic GF1||4.7 in||2.8 in||1.4 in||13.6 oz||380||n||Sep 2009||749|
|Panasonic GH1||4.9 in||3.5 in||1.8 in||13.6 oz||300||n||Mar 2009||899|
|Sony RX10 IV||5.2 in||3.7 in||5.7 in||38.6 oz||400||Y||Sep 2017||1,699|
|Sony RX0||2.3 in||1.6 in||1.2 in||3.9 oz||240||Y||Aug 2017||699|
|Sony RX100 V||4.0 in||2.3 in||1.6 in||10.5 oz||220||n||Oct 2016||999|
|Sony RX10 II||5.1 in||3.5 in||4.0 in||28.7 oz||400||Y||Jun 2015||1,299|
|Sony RX10||5.1 in||3.5 in||4.0 in||28.7 oz||420||Y||Oct 2013||1,299|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will naturally be influenced heavily by the price. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The LX100 was launched at a markedly lower price (by 40 percent) than the RX10 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 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 more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Panasonic LX100 features a Four Thirds sensor and the Sony RX10 III an one-inch sensor. The sensor area in the RX10 III is 37 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.2 and 2.7. The sensor in the LX100 has a native 4:3 aspect ratio, while the one in the RX10 III offers a 3:2 aspect. The LX100 has the particularity of featuring a switch that allows to toggle between multiple aspect ratios, while maintaining the same field of view and full image resolution.
Despite having a smaller sensor, the RX10 III offers a higher resolution of 20 megapixels, compared with 12.7 MP of the LX100. This megapixels 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 3.82μm for the LX100). However, it should be noted that the RX10 III is a somewhat more recent model (by 1 year and 6 months) than the LX100, and its sensor might have benefitted from technological advances during this time that partly offset its pixel-size disadvantage.
The resolution advantage of the Sony RX10 III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the RX10 III for good quality output (200 dots per inch) amounts to 27.4 x 18.2 inches or 69.5 x 46.3 cm, for very good quality (250 dpi) 21.9 x 14.6 inches or 55.6 x 37.1 cm, and for excellent quality (300 dpi) 18.2 x 12.2 inches or 46.3 x 30.9 cm. The corresponding values for the Panasonic LX100 are 20.6 x 15.4 inches or 52.2 x 39.2 cm for good quality, 16.4 x 12.4 inches or 41.8 x 31.4 cm for very good quality, and 13.7 x 10.3 inches or 34.8 x 26.1 cm for excellent quality prints.
The Panasonic Lumix DMC-LX100 has a native sensitivity range from ISO 200 to ISO 25600, which can be extended to ISO 100-25600. The corresponding ISO settings for the Sony Cyber-shot DSC-RX10 III are ISO 100 to ISO 12800, with the possibility to increase the ISO range to 64-25600.
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). The Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
| DXO |
|Panasonic LX100||Four Thirds||12.7||4112||3088||4K/30p||22.3||12.5||553||67|
|Sony RX10 III||1-inch||20.0||5472||3648||4K/30p||23.1||12.6||472||70|
|Canon G1 X Mark II||1.5-inch||13.0||4160||3120||1080/30p||21.5||10.8||581||58|
|Leica D-LUX Typ 109||Four Thirds||12.7||4112||3088||4K/30p||..||..||..||..|
|Panasonic LX100 II||Four Thirds||16.8||4736||3552||4K/30p||..||..||..||..|
|Panasonic GM5||Four Thirds||15.8||4592||3448||1080/60p||22.1||11.7||721||66|
|Panasonic G6||Four Thirds||15.9||4608||3456||1080/60p||21.3||11.5||639||61|
|Panasonic GM1||Four Thirds||15.8||4592||3448||1080/60i||22.3||11.7||660||66|
|Panasonic GX7||Four Thirds||15.8||4592||3448||1080/60p||22.6||12.2||718||70|
|Panasonic GF1||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||513||54|
|Panasonic GH1||Four Thirds||12.0||4000||3000||1080/24p||21.6||11.6||772||64|
|Sony RX10 IV||1-inch||20.0||5472||3648||4K/30p||..||..||..||..|
|Sony RX100 V||1-inch||20.0||5472||3648||4K/30p||22.8||12.4||586||70|
|Sony RX10 II||1-inch||20.0||5472||3648||4K/30p||23.0||12.6||531||70|
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, and both provide the same movie specifications (4K/30p).
Apart from body and sensor, cameras can and do differ across a variety of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the LX100 offers a higher resolution than the one in the RX10 III (2764k vs 2359k dots). The table below summarizes some of the other core capabilities of the Panasonic LX100 and Sony RX10 III in connection with corresponding information for a sample of similar cameras.
|Sony RX10 III||2359||Y||3.0||1229||tilting||n||1/2000s||14.0||Y||Y|
|Canon G1 X Mark II||optional||n||3.0||1040||tilting||Y||1/4000s||5.2||Y||Y|
|Leica D-LUX Typ 109||2764||n||3.0||921||fixed||n||1/4000s||11.0||n||Y|
|Panasonic LX100 II||2764||n||3.0||1240||fixed||Y||1/4000s||11.0||n||Y|
|Sony RX10 IV||2359||Y||3.0||1440||tilting||Y||1/2000s||24.0||Y||Y|
|Sony RX100 V||2359||n||3.0||1229||tilting||n||1/2000s||24.0||Y||Y|
|Sony RX10 II||2359||Y||3.0||1229||tilting||n||1/3200s||14.0||Y||Y|
One feature that is present on the RX10 III, but is missing on the LX100 is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.
The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, both cameras under consideration feature an electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).
The Panasonic LX100 has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.
Both the LX100 and the RX10 III have zoom lenses built in. The LX100 has a 24-75mm f/1.7-2.8 optic and the RX10 III offers a 24-600mm f/2.4-4.0 (focal lengths in full frame equivalent terms). Hence, the Panasonic and Sony provide the same view at the wide-angle end, but the Sony has more tele-photo reach at the long end. The LX100 offers the faster maximum aperture.
The LX100 writes its imaging data to SDXC cards, while the RX10 III uses SDXC or Memory Stick PRO Duo cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.
For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Panasonic Lumix DMC-LX100 and Sony Cyber-shot DSC-RX10 III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|Sony RX10 III||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-|
|Canon G1 X Mark II||Y||stereo||mono||-||-||mini||2.0||Y||Y||-|
|Leica D-LUX Typ 109||Y||stereo||mono||-||-||micro||2.0||Y||Y||-|
|Panasonic LX100 II||Y||stereo||mono||-||-||micro||2.0||Y||-||Y|
|Sony RX10 IV||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-|
|Sony RX100 V||-||stereo||mono||-||-||micro||2.0||Y||Y||-|
|Sony RX10 II||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-|
It is notable that the RX10 III has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The LX100 does not feature such a mic input.
Both the LX100 and the RX10 III are recent models that are part of the current product line-up. The RX10 III replaced the earlier Sony RX10 II, while the LX100 does not have a direct predecessor. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Panasonic and Sony websites.
So what conclusions can be drawn? Is the Panasonic LX100 better than the Sony RX10 III or vice versa? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the Panasonic Lumix DMC-LX100:
- Flexible image proportions: Has a multi-aspect sensor that allows for alternative image shapes.
- More detailed viewfinder: Has higher resolution electronic viewfinder (2764k vs 2359k dots).
- Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/2000s) to freeze action.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Better light gathering: Has a lens with a wider maximum aperture (f/1.7 vs f/2.4).
- More compact: Is smaller (115x66mm vs 133x94mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 658g or 63 percent) and hence easier to carry around.
- More affordable: Was introduced into a lower priced category (40 percent cheaper at launch).
- More heavily discounted: Has been on the market for longer (launched in September 2014).
Advantages of the Sony Cyber-shot DSC-RX10 III:
- More detail: Has more megapixels (20 vs 12.7MP), which boosts linear resolution by 28%.
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- Easier setting verification: Features a control panel on top to check shooting parameters.
- More detailed LCD: Has a higher resolution rear screen (1229k vs 921k dots).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Faster burst: Shoots at higher frequency (14 vs 11 flaps/sec) to capture the decisive moment.
- More tele-reach: Has a longer tele-lens for perspective compression and subject magnification.
- Longer lasting: Gets more shots (420 versus 300) out of a single battery charge.
- Easier travel charging: Can be conveniently charged via its USB port.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- More modern: Was introduced somewhat (1 year and 6 months) more recently.
If the count of relative strengths (bullet points above) is taken as a measure, the RX10 III is the clear winner of the contest (13 : 9 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 before making a decision on a new camera. A professional sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape shooter. Hence, the decision which camera is best and worth buying is often a very personal one.
How about other alternatives? Do the specifications of the Panasonic LX100 and the Sony RX10 III place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best Superzoom Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the LX100 and the RX10 III 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 following table reports the overall ratings of the cameras as published by some of the major camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.
|Panasonic LX100||+ +||85/100||5/5||4/5||5/5||Sep 2014||899|
|Sony RX10 III||+||84/100||4.5/5||4.5/5||4.5/5||Mar 2016||1,499|
|Canon G1 X Mark II||+||77/100||4/5||4/5||4.5/5||Feb 2014||799|
|Leica D-LUX Typ 109||..||..||4.5/5||..||4.5/5||Sep 2014||1,195|
|Panasonic LX100 II||+||82/100||4.5/5||4.5/5||4.5/5||Aug 2018||999|
|Panasonic FZ1000||+ +||82/100||4.5/5||4.5/5||4.5/5||Jun 2014||899|
|Panasonic GM5||+||77/100||5/5||5/5||4.5/5||Sep 2014||749|
|Panasonic G6||+ +||..||5/5||..||4.5/5||Apr 2013||599|
|Panasonic GM1||+||78/100||5/5||4.5/5||4.5/5||Oct 2013||749|
|Panasonic GX7||+||79/100||5/5||4.5/5||5/5||Aug 2013||999|
|Panasonic GF1||85/100||69/100||4.5/5||4.5/5||4.5/5||Sep 2009||749|
|Panasonic GH1||+ +||72/100||4.5/5||5/5||4.5/5||Mar 2009||899|
|Sony RX10 IV||+||84/100||4.5/5||..||5/5||Sep 2017||1,699|
|Sony RX0||..||..||3.5/5||..||4/5||Aug 2017||699|
|Sony RX100 V||+ +||83/100||4/5||5/5||4.5/5||Oct 2016||999|
|Sony RX10 II||+ +||82/100||4.5/5||4.5/5||4/5||Jun 2015||1,299|
|Sony RX10||+||80/100||4.5/5||4.5/5||4.5/5||Oct 2013||1,299|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. A score, therefore, has to be seen in close connection to the price and market introduction time 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.
Other camera comparisons
Did this review help to inform your camera decision process? 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.
Specifications: Panasonic LX100 vs Sony RX10 III
Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.
|Camera Model||Panasonic LX100||Sony RX10 III|
|Camera Type||Fixed lens compact camera||Fixed lens compact camera|
|Camera Lens||24-75mm f/1.7-2.8||24-600mm f/2.4-4.0|
|Launch Date||September 2014||March 2016|
|Launch Price||USD 899||USD 1,499|
|Sensor Specs||Panasonic LX100||Sony RX10 III|
|Sensor Format||Four Thirds Sensor||1" Sensor|
|Sensor Size||15.7 x 11.8 mm||13.2 x 8.8 mm|
|Sensor Area||185.26 mm2||116.16 mm2|
|Sensor Diagonal||19.6 mm||15.9 mm|
|Sensor Resolution||12.7 Megapixels||20 Megapixels|
|Image Resolution||4112 x 3088 pixels||5472 x 3648 pixels|
|Pixel Pitch||3.82 μm||2.41 μm|
|Pixel Density||6.85 MP/cm2||17.18 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||4K/30p Video||4K/30p Video|
|ISO Setting||200 - 25,600 ISO||100 - 12,800 ISO|
|ISO Boost||100 - 25,600 ISO||64 - 25,600 ISO|
|Image Processor||Venus||BIONZ X|
|DXO Sensor Quality (score)||67||70|
|DXO Color Depth (bits)||22.3||23.1|
|DXO Dynamic Range (EV)||12.5||12.6|
|DXO Low Light (ISO)||553||472|
|Screen Specs||Panasonic LX100||Sony RX10 III|
|Viewfinder Type||Electronic viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||2764k dots||2359k dots|
|Top-Level Screen||no Top Display||Control Panel|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||921k dots||1229k dots|
|LCD Attachment||Fixed screen||Tilting screen|
|Shooting Specs||Panasonic LX100||Sony RX10 III|
|Focus System||Contrast-detect AF||Contrast-detect AF|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/2000s|
|Continuous Shooting||11 shutter flaps/s||14 shutter flaps/s|
|Electronic Shutter||up to 1/16000s||up to 1/32000s|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|Fill Flash||no On-Board Flash||Build-in Flash|
|Storage Medium||SDXC cards||MS or SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-I||UHS-I|
|Connectivity Specs||Panasonic LX100||Sony RX10 III|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||micro HDMI||micro HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Headphone Socket||no Headphone port||Headphone port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Near-Field Communication||NFC built-in||NFC built-in|
|Body Specs||Panasonic LX100||Sony RX10 III|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||300 shots per charge||420 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
115 x 66 x 55 mm
(4.5 x 2.6 x 2.2 in)
133 x 94 x 127 mm
(5.2 x 3.7 x 5.0 in)
|Camera Weight||393 g (13.9 oz)||1051 g (37.1 oz)|
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