Panasonic TZ100 versus Panasonic GX850
The Panasonic Lumix DMC-TZ100 (called Panasonic ZS100 in some regions) and the Panasonic Lumix DMC-GX850 (labelled Panasonic GX800 in some countries) are two digital cameras that were revealed to the public, respectively, in January 2016 and January 2017. The TZ100 is a fixed lens compact, while the GX850 is a mirrorless interchangeable lens camera. The cameras are based on an one-inch (TZ100) and a Four Thirds (GX850) sensor. The TZ100 has a resolution of 20 megapixel, whereas the GX850 provides 15.8 MP. Read on to find out how these two cameras compare with respect to their size, their sensors, their features, and their reception by expert reviewers.
Body comparison: Panasonic TZ100 vs Panasonic GX850
An illustration of the physical size and weight of the Panasonic TZ100 and the Panasonic GX850 is provided 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 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 TZ100 – 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 GX850 is somewhat smaller (4 percent) than the Panasonic TZ100. In this context, it is worth noting that neither the TZ100 nor the GX850 are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the TZ100 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 camera comparisons there.
|Camera Body Specifications|
|Panasonic TZ100»||4.4 in||2.6 in||1.7 in||11.0 oz||300||n||Jan 2016||699||-|
|Panasonic GX850«||4.2 in||2.6 in||1.3 in||9.5 oz||210||n||Jan 2017||549|
|Canon G7 X Mark II« »||4.2 in||2.4 in||1.7 in||11.3 oz||265||n||Feb 2016||699|
|Canon M3« »||4.4 in||2.7 in||1.7 in||12.9 oz||250||n||Feb 2015||679||-|
|Canon G5 X« »||4.4 in||3.0 in||1.7 in||12.5 oz||210||n||Oct 2015||799|
|Canon G7 X« »||4.1 in||2.4 in||1.6 in||10.7 oz||210||n||Sep 2014||699||-|
|Panasonic TZ200« »||4.4 in||2.6 in||1.8 in||12.0 oz||370||n||Feb 2018||799|
|Panasonic LX15« »||4.2 in||2.4 in||1.7 in||10.9 oz||260||n||Sep 2016||699|
|Panasonic G7« »||4.9 in||3.4 in||3.0 in||14.5 oz||350||n||May 2015||649||-|
|Panasonic GF7« »||4.2 in||2.6 in||1.3 in||9.4 oz||230||n||Jan 2015||499||-|
|Panasonic GF6« »||4.4 in||2.6 in||1.5 in||11.4 oz||340||n||Apr 2013||499||-|
|Panasonic G6« »||4.8 in||3.3 in||2.8 in||13.8 oz||340||n||Apr 2013||599||-|
|Panasonic GX1« »||4.6 in||2.7 in||1.5 in||11.2 oz||320||n||Nov 2011||949||-|
|Sony RX100 V« »||4.0 in||2.3 in||1.6 in||10.5 oz||220||n||Oct 2016||999|
|Sony RX100 IV« »||4.0 in||2.3 in||1.6 in||10.5 oz||280||n||Jun 2015||999||-|
|Sony RX100 III« »||4.0 in||2.3 in||1.6 in||10.2 oz||320||n||May 2014||799||-|
|Sony RX100 II« »||4.0 in||2.3 in||1.5 in||9.9 oz||350||n||Jun 2013||749||-|
The price is, of course, an important factor in any camera decision. The listed launch 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.
Sensor comparison: Panasonic TZ100 vs Panasonic GX850
The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color depth than smaller pixels in a sensor of the same technological generation. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Panasonic TZ100 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, 2.75 and 2.0. The sensor in the TZ100 has a native 3:2 aspect ratio, while the one in the GX850 offers a 4:3 aspect.
Despite having a smaller sensor, the Panasonic TZ100 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 a somewhat more recent model (by 1 year) than the TZ100, and its sensor might 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.
Consistent information on actual sensor performance is available from DXO Mark for most cameras. 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 image quality. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Panasonic GX850«||Four Thirds||15.8||4592||3448||4K/30p||23.2||13.3||586||73|
|Canon G7 X Mark II« »||1-inch||20.0||5472||3648||1080/60p||-||-||-||-|
|Canon M3« »||APS-C||24.0||6000||4000||1080/30p||22.8||11.8||1169||72|
|Canon G5 X« »||1-inch||20.0||5472||3648||1080/60p||-||-||-||-|
|Canon G7 X« »||1-inch||20.0||5472||3648||1080/60p||23.0||12.7||556||71|
|Panasonic TZ200« »||1-inch||20.0||5472||3648||4K/30p||-||-||-||-|
|Panasonic LX15« »||1-inch||20.0||5472||3648||4K/30p||-||-||-||-|
|Panasonic G7« »||Four Thirds||15.8||4592||3448||4K/30p||-||-||-||-|
|Panasonic GF7« »||Four Thirds||15.8||4592||3448||1080/60p||-||-||-||-|
|Panasonic GF6« »||Four Thirds||15.8||4592||3448||1080/60i||20.7||10.6||622||54|
|Panasonic G6« »||Four Thirds||15.9||4608||3456||1080/60p||21.3||11.5||639||61|
|Panasonic GX1« »||Four Thirds||15.8||4592||3448||1080/60p||20.8||10.6||703||55|
|Sony RX100 V« »||1-inch||20.0||5472||3648||4K/30p||22.8||12.4||586||70|
|Sony RX100 IV« »||1-inch||20.0||5472||3648||4K/30p||22.8||12.6||591||70|
|Sony RX100 III« »||1-inch||20.0||5472||3648||1080/60p||22.4||12.3||495||67|
|Sony RX100 II« »||1-inch||20.0||5472||3648||1080/60p||22.5||12.4||483||67|
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, and both provide the same movie specifications (4K/30p).
Feature comparison: Panasonic TZ100 vs Panasonic GX850
Apart from body and sensor, cameras can and do differ across a range of features. For example, the TZ100 has an electronic viewfinder (1166k dots), which can be very helpful when shooting in bright sunlight. In contrast, the GX850 relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Panasonic TZ100 and Panasonic GX850 along with similar information for a selection of comparators. If needed, the dpreview camera hub, for example, contains further detail on the cameras' specs.
|Canon G7 X Mark II« »||-||n||3.0||1040||tilting||Y||2000||8.0||Y||Y|
|Canon M3« »||-||n||3.0||1040||tilting||Y||4000||4.2||Y||n|
|Canon G5 X« »||2360||n||3.0||1040||swivel||Y||2000||5.9||Y||Y|
|Canon G7 X« »||-||n||3.0||1040||tilting||Y||2000||6.5||Y||Y|
|Panasonic TZ200« »||2330||n||3.0||1240||fixed||Y||2000||10.0||Y||Y|
|Panasonic LX15« »||-||n||3.0||1040||tilting||Y||4000||10.0||Y||Y|
|Panasonic G7« »||2360||n||3.0||1040||swivel||Y||4000||7.0||Y||n|
|Panasonic GF7« »||-||n||3.0||1040||tilting||Y||500||5.8||Y||n|
|Panasonic GF6« »||-||n||3.0||1040||tilting||Y||4000||4.2||Y||n|
|Panasonic G6« »||1440||n||3.0||1036||swivel||Y||4000||7.0||Y||n|
|Panasonic GX1« »||-||n||3.0||460||fixed||Y||4000||4.2||Y||n|
|Sony RX100 V« »||2359||n||3.0||1229||tilting||n||2000||24.0||Y||Y|
|Sony RX100 IV« »||2359||n||3.0||1228||tilting||n||2000||16.0||Y||Y|
|Sony RX100 III« »||1440||n||3.0||1229||tilting||n||2000||10.0||Y||Y|
|Sony RX100 II« »||-||n||3.0||1229||tilting||n||2000||10.0||Y||Y|
The GX850 is a current model that online retailers, such as amazon, will have in stock. In contrast, the TZ100 has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the TZ100 was succeeded by the Panasonic TZ200.
Review summary: Panasonic TZ100 vs Panasonic GX850
So how do things add up? Is there a clear favorite between the Panasonic TZ100 and the Panasonic GX850? Below is a summary of the relative strengths of each of the two contestants.
Arguments in favor of the Panasonic Lumix DMC-TZ100:
- 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.
- Easier framing: Has an electronic viewfinder for image framing and settings control.
- 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.
- Longer lasting: Can take more shots (300 versus 210) on a single battery charge.
- Sharper images: Has hand-shake reducing image stabilization build-in.
- More heavily discounted: Has been on the market for longer (launched in January 2016).
Advantages of the Panasonic Lumix DMC-GX850:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- More dynamic range: Captures a broader range of light and dark details (0.8 EV of extra DR).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
- More modern: Was introduced somewhat (1 year) more recently.
If the count of individual advantages (bullet points above) is taken as a guide, the TZ100 emerges as the winner of the contest (8 : 5 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 when reflecting and deciding on a new camera.
In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it remains incomplete and does no justice, for example, to the way the TZ100 or the GX850 handle or perform in practice. 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 rankings of the cameras as published by some of the major camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). The full reviews are available by clicking on the site logo in the table header.
|Panasonic TZ100»||HiRec||82/100||4.5/5||4/5||4.5/5||Jan 2016||699||-|
|Panasonic GX850«||Rec||76/100||4.5/5||4/5||4.5/5||Jan 2017||549|
|Canon G7 X Mark II« »||HiRec||81/100||4.5/5||4/5||4.5/5||Feb 2016||699|
|Canon M3« »||rev||75/100||4.5/5||4.5/5||4/5||Feb 2015||679||-|
|Canon G5 X« »||HiRec||78/100||4.5/5||4/5||4.5/5||Oct 2015||799|
|Canon G7 X« »||HiRec||77/100||4.5/5||3.5/5||4.5/5||Sep 2014||699||-|
|Panasonic TZ200« »||HiRec||81/100||4.5/5||-||4.5/5||Feb 2018||799|
|Panasonic LX15« »||HiRec||81/100||4/5||4.5/5||4.5/5||Sep 2016||699|
|Panasonic G7« »||HiRec||80/100||5/5||4.5/5||4.5/5||May 2015||649||-|
|Panasonic GF7« »||Rec||-||4.5/5||4.5/5||4.5/5||Jan 2015||499||-|
|Panasonic GF6« »||HiRec||-||4.5/5||-||4.5/5||Apr 2013||499||-|
|Panasonic G6« »||HiRec||-||5/5||-||4.5/5||Apr 2013||599||-|
|Panasonic GX1« »||Rec||77/100||4.5/5||4.5/5||4.5/5||Nov 2011||949||-|
|Sony RX100 V« »||HiRec||83/100||4/5||5/5||4.5/5||Oct 2016||999|
|Sony RX100 IV« »||HiRec||85/100||4/5||4.5/5||4.5/5||Jun 2015||999||-|
|Sony RX100 III« »||HiRec||82/100||4.5/5||4.5/5||5/5||May 2014||799||-|
|Sony RX100 II« »||HiRec||79/100||4.5/5||5/5||4.5/5||Jun 2013||749||-|
Care should be taken when interpreting the review scores above, 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 comparisons of ratings among very different cameras or across long time periods have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
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