Panasonic FZ100 vs GX850
The Panasonic Lumix DMC-FZ100 and the Panasonic Lumix DMC-GX850 (labelled Panasonic GX800 in some countries) are two digital cameras that were officially introduced, respectively, in July 2010 and January 2017. The FZ100 is a fixed lens compact, while the GX850 is a mirrorless interchangeable lens camera. The cameras are based on a 1/2.3-inch (FZ100) and a Four Thirds (GX850) sensor. The FZ100 has a resolution of 14 megapixels, whereas the GX850 provides 15.8 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-FZ100 and the Panasonic Lumix DMC-GX850? 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 side-by-side display below illustrates the physical size and weight of the Panasonic FZ100 and the Panasonic GX850. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All size dimensions are rounded to the nearest millimeter.
The GX850 can be obtained in three different colors (black, silver, red), while the FZ100 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 Panasonic GX850 is considerably smaller (32 percent) than the Panasonic FZ100. In this context, it is worth noting that neither the FZ100 nor the GX850 are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the FZ100 has a lens built 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 compare the optics available 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 would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.
|1.||Panasonic FZ100||124 mm||82 mm||92 mm||540 g||410||n||Jul 2010||499|
|2.||Panasonic GX850||107 mm||65 mm||33 mm||269 g||210||n||Jan 2017||549|
|3.||Canon SX530||120 mm||82 mm||92 mm||442 g||210||n||Jan 2015||429|
|4.||Canon SX60||128 mm||93 mm||114 mm||650 g||340||n||Sep 2014||549|
|5.||Canon SX50||123 mm||87 mm||106 mm||595 g||315||n||Sep 2012||429|
|6.||Canon SX40||123 mm||92 mm||108 mm||600 g||380||n||Sep 2011||429|
|7.||Canon SX30||123 mm||92 mm||108 mm||601 g||370||n||Sep 2010||429|
|8.||Canon SX20||123 mm||88 mm||87 mm||600 g||..||n||Aug 2009||399|
|9.||Leica V-LUX 3||124 mm||81 mm||95 mm||540 g||410||n||Dec 2011||949|
|10.||Leica V-LUX 2||124 mm||80 mm||95 mm||520 g||410||n||Sep 2010||849|
|11.||Panasonic GF7||107 mm||65 mm||33 mm||266 g||230||n||Jan 2015||499|
|12.||Panasonic G6||122 mm||85 mm||71 mm||390 g||340||n||Apr 2013||599|
|13.||Panasonic FZ200||125 mm||87 mm||110 mm||588 g||540||n||Jul 2012||599|
|14.||Panasonic G5||120 mm||83 mm||71 mm||396 g||320||n||Jul 2012||599|
|15.||Panasonic FZ150||124 mm||82 mm||92 mm||528 g||410||n||Aug 2011||499|
|16.||Panasonic G3||115 mm||84 mm||47 mm||336 g||270||n||May 2011||599|
|17.||Panasonic GX1||116 mm||68 mm||39 mm||318 g||320||n||Nov 2011||699|
|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 FZ100 was launched at a lower price than the GX850, despite having a lens built in. 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.
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. 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 FZ100 features a 1/2.3-inch sensor and the Panasonic GX850 a Four Thirds sensor. The sensor area in the GX850 is 704 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 5.6 and 2.0. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.
With 15.8MP, the GX850 offers a higher resolution than the FZ100 (14MP), but the GX850 nevertheless has larger individual pixels (pixel pitch of 3.77μm versus 1.41μm for the FZ100) due to its larger sensor. Moreover, the GX850 is a much more recent model (by 6 years and 5 months) than the FZ100, 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 neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.
The resolution advantage of the Panasonic GX850 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the GX850 for good quality output (200 dots per inch) amounts to 23 x 17.2 inches or 58.3 x 43.8 cm, for very good quality (250 dpi) 18.4 x 13.8 inches or 46.7 x 35 cm, and for excellent quality (300 dpi) 15.3 x 11.5 inches or 38.9 x 29.2 cm. The corresponding values for the Panasonic FZ100 are 21.6 x 16.2 inches or 54.9 x 41.1 cm for good quality, 17.3 x 13 inches or 43.9 x 32.9 cm for very good quality, and 14.4 x 10.8 inches or 36.6 x 27.4 cm for excellent quality prints.
The Panasonic Lumix DMC-FZ100 has a native sensitivity range from ISO 100 to ISO 1600, which can be extended to ISO 100-6400. The corresponding ISO settings for the Panasonic Lumix DMC-GX850 are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 100-25600.
Consistent information on actual sensor performance is available from DXO Mark for many 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 following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
| DXO |
|2.||Panasonic GX850||Four Thirds||15.8||4592||3448||4K/30p||23.2||13.3||586||73|
|9.||Leica V-LUX 3||1/2.3||12.0||4000||3000||1080/60p||..||..||..||..|
|10.||Leica V-LUX 2||1/2.3||14.0||4320||3240||1080/60i||..||..||..||..|
|11.||Panasonic GF7||Four Thirds||15.8||4592||3448||1080/60p||..||..||..||..|
|12.||Panasonic G6||Four Thirds||15.9||4608||3456||1080/60p||21.3||11.5||639||61|
|14.||Panasonic G5||Four Thirds||15.9||4608||3456||1080/60p||..||..||..||..|
|16.||Panasonic G3||Four Thirds||15.8||4592||3448||1080/60i||21.0||10.6||667||56|
|17.||Panasonic GX1||Four Thirds||15.8||4592||3448||1080/60p||20.8||10.6||703||55|
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 FZ100. It can shoot movie footage at 4K/30p, while the FZ100 is limited to 1080/60i.
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the FZ100 has an electronic viewfinder (202k 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 FZ100 and Panasonic GX850 along with similar information for a selection of comparators.
|9.||Leica V-LUX 3||202||n||3.0||460||swivel||n||1/2000s||12.0||Y||Y|
|10.||Leica V-LUX 2||202||n||3.0||460||swivel||n||1/2000s||11.0||Y||Y|
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The GX850 has a touchscreen, while the FZ100 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.
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, the GX850 is one of those camera that have an additional 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 GX850 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.
Concerning the storage of imaging data, both the FZ100 and the GX850 write their files to SDXC cards. The GX850 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the FZ100 cannot take advantage of Ultra High Speed SD cards.
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-FZ100 and Panasonic Lumix DMC-GX850 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|9.||Leica V-LUX 3||Y||stereo||-||-||-||mini||2.0||-||-||-|
|10.||Leica V-LUX 2||Y||stereo||mono||-||-||mini||2.0||-||-||-|
It is notable that the FZ100 has a hotshoe, while the GX850 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.
The GX850 is a recent model that features in the current product line-up of Panasonic. In contrast, the FZ100 has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the FZ100 was succeeded by the Panasonic FZ150. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Panasonic website.
So what conclusions can be drawn? Is there a clear favorite between the Panasonic FZ100 and the Panasonic GX850? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.
Advantages of the Panasonic Lumix DMC-FZ100:
- Easier framing: Has an electronic viewfinder for image composition and settings control.
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- Faster shutter: Has higher mechanical shutter speed (1/2000s vs 1/500s) to freeze action.
- Ready to shoot: Has a lens built-in, whereas the GX850 requires a separate lens.
- Longer lasting: Can take more shots (410 versus 210) on a single battery charge.
- Sharper images: Has hand-shake reducing image stabilization built-in.
- Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More heavily discounted: Has been available for much longer (launched in July 2010).
Arguments in favor of the Panasonic Lumix DMC-GX850:
- More detail: Has more megapixels (15.8 vs 14MP), which boosts linear resolution by 6%.
- Better image quality: Is equipped with a larger and more technologically advanced sensor.
- Richer colors: The sensor size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
- Better video: Provides higher definition movie capture (4K/30p vs 1080/60i).
- More detailed LCD: Has a higher resolution rear screen (1040k vs 460k dots).
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
- More compact: Is smaller (107x65mm vs 124x82mm) and will fit more readily into a bag.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
- More modern: Reflects 6 years and 5 months of technical progress since the FZ100 launch.
If the number of relative strengths (bullet points above) is taken as a guide, the GX850 is the clear winner of the contest (15 : 9 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. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports 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 FZ100 and the Panasonic GX850 place the cameras among the top in their class? Find out in the latest Best Superzoom Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.
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 shooting experience and imaging performance when actually working with the FZ100 or the GX850. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.
This is where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (amateurphotographer [AP], cameralabs [CL], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). 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.
|1.||Panasonic FZ100||..||+||..||4.5/5||4.5/5||Jul 2010||499|
|2.||Panasonic GX850||..||+||76/100||4.5/5||4.5/5||Jan 2017||549|
|3.||Canon SX530||..||+ +||..||4/5||4/5||Jan 2015||429|
|4.||Canon SX60||3/5||+ +||75/100||4/5||4.5/5||Sep 2014||549|
|5.||Canon SX50||3/5||+ +||72/100||4.5/5||4.5/5||Sep 2012||429|
|6.||Canon SX40||..||+||..||4.5/5||4/5||Sep 2011||429|
|7.||Canon SX30||3/5||+ +||..||3.5/5||4/5||Sep 2010||429|
|8.||Canon SX20||..||+ +||73/100||..||4/5||Aug 2009||399|
|9.||Leica V-LUX 3||..||..||..||..||..||Dec 2011||949|
|10.||Leica V-LUX 2||..||..||..||..||..||Sep 2010||849|
|11.||Panasonic GF7||4/5||+||..||4.5/5||4.5/5||Jan 2015||499|
|12.||Panasonic G6||4/5||+ +||..||5/5||4.5/5||Apr 2013||599|
|13.||Panasonic FZ200||3/5||+ +||80/100||4.5/5||4.5/5||Jul 2012||599|
|14.||Panasonic G5||3/5||+ +||..||4.5/5||4.5/5||Jul 2012||599|
|15.||Panasonic FZ150||3/5||+ +||76/100||4/5||4.5/5||Aug 2011||499|
|16.||Panasonic G3||3/5||+ +||75/100||4.5/5||5/5||May 2011||599|
|17.||Panasonic GX1||3/5||+||77/100||4.5/5||4.5/5||Nov 2011||699|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. 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. Also, please note that some of the review sites have changed their methodology and reporting over time.
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 your choice using the following search menu. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
Specifications: Panasonic FZ100 vs Panasonic GX850
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 FZ100||Panasonic GX850|
|Camera Type||Fixed lens compact camera||Mirrorless system camera|
|Camera Lens||25-600mm f/2.8-5.2||Micro Four Thirds lenses|
|Launch Date||July 2010||January 2017|
|Launch Price||USD 499||USD 549|
|Sensor Specs||Panasonic FZ100||Panasonic GX850|
|Sensor Format||1/2.3" Sensor||Four Thirds Sensor|
|Sensor Size||6.17 x 4.55 mm||17.3 x 13.0 mm|
|Sensor Area||28.0735 mm2||224.9 mm2|
|Sensor Diagonal||7.7 mm||21.6 mm|
|Sensor Resolution||14 Megapixels||15.8 Megapixels|
|Image Resolution||4320 x 3240 pixels||4592 x 3448 pixels|
|Pixel Pitch||1.41 μm||3.77 μm|
|Pixel Density||49.86 MP/cm2||7.04 MP/cm2|
|Moiré control||no AA filter||no AA filter|
|Movie Capability||1080/60i Video||4K/30p Video|
|ISO Setting||100 - 1,600 ISO||200 - 25,600 ISO|
|ISO Boost||100 - 6,400 ISO||100 - 25,600 ISO|
|Image Processor||Venus FHD||Venus|
|DXO Sensor Quality (score)||..||73|
|DXO Color Depth (bits)||..||23.2|
|DXO Dynamic Range (EV)||..||13.3|
|DXO Low Light (ISO)||..||586|
|Screen Specs||Panasonic FZ100||Panasonic GX850|
|Viewfinder Type||Electronic viewfinder||no viewfinder|
|Viewfinder Field of View||100%|
|Viewfinder Resolution||202k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||460k dots||1040k dots|
|LCD Attachment||Swivel screen||Tilting screen|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Panasonic FZ100||Panasonic GX850|
|Focus System||Contrast-detect AF||Contrast-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/2000s||1/500s|
|Continuous Shooting||11 shutter flaps/s||10 shutter flaps/s|
|Electronic Shutter||no E-Shutter||up to 1/16000s|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||no||UHS-I|
|Connectivity Specs||Panasonic FZ100||Panasonic GX850|
|External Flash||Hotshoe||no Hotshoe|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||micro HDMI|
|Wifi Support||no Wifi||Wifi built-in|
|Body Specs||Panasonic FZ100||Panasonic GX850|
|Battery Life (CIPA)||410 shots per charge||210 shots per charge|
124 x 82 x 92 mm
(4.9 x 3.2 x 3.6 in)
107 x 65 x 33 mm
(4.2 x 2.6 x 1.3 in)
|Camera Weight||540 g (19.0 oz)||269 g (9.5 oz)|
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