Sony RX100 III versus Panasonic TZ100
The Sony Cyber-shot DSC-RX100 III and the Panasonic Lumix DMC-TZ100 (labelled Panasonic ZS100 in some countries) are two digital cameras that were officially introduced, respectively, in May 2014 and January 2016. Both the RX100 III and the TZ100 are fixed lens compact cameras that are equipped with an one-inch sensor. Both cameras offer a resolution of 20 megapixel.
The physical size and weight of the Sony RX100 III and the Panasonic TZ100 are illustrated in the side-by-side display below. Three successive views from the front, the top, and the rear are shown. 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 III – represents 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 TZ100 is notably larger (22 percent) than the Sony RX100 III. Moreover, the TZ100 is slightly heavier (8 percent) than the RX100 III. In this context, it is worth noting that neither the RX100 III nor the TZ100 are weather-sealed.
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 III (⇒ rgt)||102 mm||58 mm||41 mm||290 g||320||no||2014||799||discont.||check|
|Panasonic TZ100 (⇒ lft)||111 mm||65 mm||44 mm||312 g||300||no||2016||699||latest||check|
|Canon M3 (⇒ lft | rgt)||111 mm||68 mm||44 mm||366 g||250||no||2015||679||discont.||check|
|Canon T6i (⇒ lft | rgt)||132 mm||101 mm||78 mm||555 g||440||no||2015||749||discont.||check|
|Canon T6s (⇒ lft | rgt)||132 mm||101 mm||78 mm||565 g||440||no||2015||849||discont.||check|
|Canon G5 X (⇒ lft | rgt)||112 mm||76 mm||44 mm||353 g||210||no||2015||799||latest||check|
|Canon G7 X (⇒ lft | rgt)||103 mm||60 mm||40 mm||304 g||210||no||2014||699||discont.||check|
|Panasonic LX15 (⇒ lft | rgt)||106 mm||60 mm||42 mm||310 g||260||no||2016||699||latest||check|
|Panasonic FZ1000 (⇒ lft | rgt)||137 mm||99 mm||131 mm||831 g||360||no||2014||899||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 II (⇒ lft | rgt)||102 mm||58 mm||38 mm||281 g||350||no||2013||749||discont.||check|
|Sony RX100 (⇒ lft | rgt)||102 mm||58 mm||36 mm||240 g||330||no||2012||649||discont.||check|
The listed prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The TZ100 was launched at a somewhat lower price (by 13 percent) than the RX100 III, 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 tend to be associated with larger, more expensive camera bodies and lenses.
Both cameras under consideration feature an one-inch sensor and have a format factor (sometimes also referred to as "crop factor") of 2.7. 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 have a native aspect ratio (sensor width to sensor height) of 3:2.
The two cameras under review do not only share the same sensor size, but also offer an identical resolution of 20 megapixel. This similarity in sensor specs implies that both the RX100 III and the TZ100 have the same pixel density, as well as the same pixel size. It should, however, be noted that the TZ100 is a somewhat more recent model (by 1 year and 7 months) than the RX100 III, and its sensor might have benefitted from technological advances during this time.
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 Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar image quality. 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 III (⇒ rgt)||1-inch||20.0||5472||3648||1080/60p||22.4||12.3||495||67|
|Panasonic TZ100 (⇒ lft)||1-inch||20.0||5472||3648||4K/30p||22.8||12.5||559||70|
|Canon M3 (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/30p||22.8||11.8||1169||72|
|Canon T6i (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60p||22.7||12.0||919||71|
|Canon T6s (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/30p||22.6||12.0||915||70|
|Canon G5 X (⇒ lft | rgt)||1-inch||20.0||5472||3648||1080/60p||-||-||-||-|
|Canon G7 X (⇒ lft | rgt)||1-inch||20.0||5472||3648||1080/60p||23.0||12.7||556||71|
|Panasonic LX15 (⇒ lft | rgt)||1-inch||20.0||5472||3648||4K/30p||..||..||..||..|
|Panasonic FZ1000 (⇒ lft | rgt)||1-inch||20.0||5472||3648||4K/30p||22.1||11.7||517||64|
|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 II (⇒ lft | rgt)||1-inch||20.0||5472||3648||1080/60p||22.5||12.4||483||67|
|Sony RX100 (⇒ lft | rgt)||1-inch||20.0||5472||3648||1080/60p||22.6||12.4||390||66|
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 TZ100 provides a better video resolution than the RX100 III. It can shoot movie footage at 4K/30p, while the Sony is limited to 1080/60p.
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 RX100 III offers a higher resolution than the one in the TZ100 (1440k vs 1166k dots). The following table reports on some other key feature differences and similarities of the Sony RX100 III, the Panasonic TZ100, 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 III (⇒ rgt)||1440||no||3.0||1229||tilting||no||2000||10.0||YES||no|
|Panasonic TZ100 (⇒ lft)||1166||no||3.0||1040||fixed||YES||2000||10.0||YES||YES|
|Canon M3 (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||4000||4.2||5||no|
|Canon T6i (⇒ lft | rgt)||optical||no||3.0||1040||swivel||YES||4000||5.0||12||no|
|Canon T6s (⇒ lft | rgt)||optical||YES||3.0||1040||swivel||YES||4000||5.0||12||no|
|Canon G5 X (⇒ lft | rgt)||2360||no||3.0||1040||swivel||YES||2000||5.9||7||no|
|Canon G7 X (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||2000||6.5||7||no|
|Panasonic LX15 (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||4000||10.0||12.1||YES|
|Panasonic FZ1000 (⇒ lft | rgt)||2359||no||3.0||921||swivel||no||4000||12.0||13.5||no|
|Sony RX100 V (⇒ lft | rgt)||2359||no||3.0||1229||tilting||no||2000||24.0||10.2||no|
|Sony RX100 IV (⇒ lft | rgt)||2359||no||3.0||1228||tilting||no||2000||16.0||10.2||no|
|Sony RX100 II (⇒ lft | rgt)||no||no||3.0||1229||tilting||no||2000||10.0||15||no|
|Sony RX100 (⇒ lft | rgt)||no||no||3.0||1229||fixed||YES||2000||10.0||YES||no|
Both the RX100 III and the TZ100 have zoom lenses build in. The RX100 III has a 24-70mm f/1.8-2.8 optic and the TZ100 offers a 25.025-250.25mm f/2.8-5.9 (focal lengths in full frame equivalent terms). Hence, the Sony provides a wider angle of view at the short end than the Panasonic, but less tele-photo reach at the long end. The RX100 III offers the faster maximum aperture.
The TZ100 is a current model that online retailers, such as amazon, will have in stock. In contrast, the RX100 III has been discontinued (but it can be found pre-owned on ebay). As a replacement in the same line of cameras, the RX100 III was succeeded by the Sony RX100 IV.
So how do things add up? Is the Sony RX100 III better than the Panasonic TZ100 or vice versa? Below is a summary of the relative strengths of each of the two contestants.
Arguments in favor of the Sony Cyber-shot DSC-RX100 III:
- More detailed viewfinder: Has higher resolution electronic viewfinder (1440k vs 1166k dots).
- More detailed LCD: Has a higher resolution rear screen (1229k vs 1040k dots).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Better light gathering: Has a lens with a wider maximum aperture (f/1.8 vs f/2.8).
- Wider view: Has a wider-angle lens that facilitates landscape or interior shots.
- More compact: Is smaller (102x58mm vs 111x65mm) and thus needs less room in the bag.
- More heavily discounted: Has been on the market for longer (launched in May 2014).
Reasons to prefer the Panasonic Lumix DMC-TZ100:
- Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- More tele-reach: Has a longer tele-lens for perspective compression and subject magnification.
- Sharper images: Has stabilization technology build-in to reduce the impact of hand-shake.
- More affordable: Was released into a lower priced segment (13 percent cheaper at launch).
- More modern: Was introduced somewhat (1 year and 7 months) more recently.
If the count of relative strengths (bullet points above) is taken as a measure, the RX100 III comes out slightly ahead of the TZ100 (7 : 6 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 remains partial and cannot reveal, for example, the handling experience and imaging performance when actually working with the RX100 III or the TZ100. 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 full reviews are available, respectively, at cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.
|Sony RX100 III (⇒ rgt)||HiRec||82/100 Gold||4.5/5||4.5/5||5/5||2014||799||discont.||check|
|Panasonic TZ100 (⇒ lft)||HiRec||82/100 Gold||4.5/5||4/5||4.5/5||2016||699||latest||check|
|Canon M3 (⇒ lft | rgt)||reviewed||75/100||4.5/5||4.5/5||4/5||2015||679||discont.||check|
|Canon T6i (⇒ lft | rgt)||-||75/100||4.5/5||4.5/5||4.5/5||2015||749||discont.||check|
|Canon T6s (⇒ lft | rgt)||Rec||77/100 Silver||4.5/5||4.5/5||4.5/5||2015||849||discont.||check|
|Canon G5 X (⇒ lft | rgt)||HiRec||78/100 Silver||4.5/5||4/5||4.5/5||2015||799||latest||check|
|Canon G7 X (⇒ lft | rgt)||HiRec||77/100 Silver||4.5/5||3.5/5||4.5/5||2014||699||discont.||check|
|Panasonic LX15 (⇒ lft | rgt)||HiRec||81/100 Silver||4/5||4.5/5||4.5/5||2016||699||latest||check|
|Panasonic FZ1000 (⇒ lft | rgt)||HiRec||82/100 Gold||4.5/5||4.5/5||4.5/5||2014||899||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 II (⇒ lft | rgt)||HiRec||79/100 Silver||4.5/5||5/5||4.5/5||2013||749||discont.||check|
|Sony RX100 (⇒ lft | rgt)||HiRec||78/100 Silver||4/5||5/5||5/5||2012||649||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. 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 you cannot find the camera you are interested in, kindly get in touch, and I will try to update the database with the necessary infos.
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