Panasonic G9 vs ZS70
The Panasonic Lumix DC-G9 and the Panasonic Lumix DC-ZS70 (labelled Panasonic TZ90 in some countries) are two digital cameras that were announced, respectively, in November 2017 and April 2017. The G9 is a mirrorless interchangeable lens camera, while the ZS70 is a fixed lens compact. The cameras are based on a Four Thirds (G9) and a 1/2.3-inch (ZS70) sensor. Both cameras offer a resolution of 20.2 megapixels.
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 DC-G9 and the Panasonic Lumix DC-ZS70? 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 G9 and the Panasonic ZS70 are illustrated in the side-by-side display below. 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 ZS70 can be obtained in two different colors (black, silver), while the G9 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 ZS70 is considerably smaller (44 percent) than the Panasonic G9. It is worth mentioning in this context that the G9 is splash and dust resistant, while the ZS70 does not feature any corresponding weather-sealing.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the ZS70 has a lens built in, whereas the G9 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 G9 and their specifications in the Micro Four Thirds Lens Catalog.
Concerning battery life, the G9 gets 400 shots out of its DMW-BLF19 battery, while the ZS70 can take 380 images on a single charge of its DMW-BLG10 power pack. The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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.
|1.||Panasonic G9||137 mm||97 mm||92 mm||658 g||400||Y||Nov 2017||1,699|
|2.||Panasonic ZS70||112 mm||67 mm||41 mm||322 g||380||n||Apr 2017||449|
|3.||Canon SX730||110 mm||64 mm||40 mm||300 g||250||n||Apr 2017||399|
|4.||Canon SX720||110 mm||64 mm||36 mm||270 g||250||n||Feb 2016||379|
|5.||Fujifilm X-H1||140 mm||97 mm||86 mm||673 g||310||Y||Feb 2018||1,899|
|6.||Nikon Z6||134 mm||101 mm||67 mm||675 g||310||Y||Aug 2018||1,999|
|7.||Olympus E-M1 III||134 mm||91 mm||69 mm||580 g||420||Y||Feb 2020||1,799|
|8.||Olympus E-M1 II||134 mm||91 mm||67 mm||574 g||440||Y||Sep 2016||1,999|
|9.||Panasonic S5||133 mm||98 mm||82 mm||714 g||440||Y||Sep 2020||1,999|
|10.||Panasonic ZS80||112 mm||69 mm||42 mm||327 g||380||n||Feb 2019||449|
|11.||Panasonic GH5||139 mm||98 mm||87 mm||725 g||410||Y||Jan 2017||1,999|
|12.||Panasonic FZ80||130 mm||94 mm||119 mm||616 g||330||n||Jan 2017||399|
|13.||Panasonic G80||128 mm||89 mm||74 mm||505 g||330||Y||Sep 2016||899|
|14.||Panasonic FZ150||124 mm||82 mm||92 mm||528 g||410||n||Aug 2011||499|
|15.||Pentax KP||132 mm||101 mm||76 mm||703 g||390||Y||Jan 2017||1,099|
|16.||Sony A7 III||127 mm||96 mm||74 mm||650 g||610||Y||Feb 2018||1,999|
|17.||Sony A9||127 mm||96 mm||63 mm||673 g||650||Y||Apr 2017||4,499|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will obviously take relative prices into account. 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 ZS70 was launched at a lower price than the G9, despite having a lens built in. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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 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 more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Panasonic G9 features a Four Thirds sensor and the Panasonic ZS70 a 1/2.3-inch sensor. The sensor area in the ZS70 is 88 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 5.6. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.
Even though the G9 has a larger sensor, both cameras offer the same resolution of 20.2 megapixels. This implies that the G9 has a lower pixel density and larger individual pixels (with a pixel pitch of 3.34μm versus 1.18μm for the ZS70), which gives it a potential advantage in terms of light gathering capacity. In addition, the G9 is a somewhat more recent model (by 6 months) than the ZS70, and its sensor might have benefitted from technological advances during this time. 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.
Unlike the ZS70, the G9 has the capacity to capture high quality composite images (80.6MP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).
The Panasonic Lumix DC-G9 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 Panasonic Lumix DC-ZS70 are ISO 80 to ISO 3200, with the possibility to increase the ISO range to 80-6400.
For many 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.
| DXO |
|1.||Panasonic G9||Four Thirds||20.2||5184||3888||4K/60p||..||..||..||..|
|6.||Nikon Z6||Full Frame||24.3||6048||4024||4K/30p||25.3||14.3||3299||95|
|7.||Olympus E-M1 III||Four Thirds||20.2||5184||3888||4K/30p||..||..||..||..|
|8.||Olympus E-M1 II||Four Thirds||20.2||5184||3888||4K/30p||23.7||12.8||1312||80|
|9.||Panasonic S5||Full Frame||24.0||6000||4000||4K/60p||..||..||..||..|
|11.||Panasonic GH5||Four Thirds||20.2||5184||3888||4K/60p||23.9||13.0||807||77|
|13.||Panasonic G80||Four Thirds||15.8||4592||3448||4K/30p||22.8||12.5||656||71|
|16.||Sony A7 III||Full Frame||24.0||6000||4000||4K/30p||25.0||14.7||3730||96|
|17.||Sony A9||Full Frame||24.0||6000||4000||4K/30p||24.9||13.3||3517||92|
Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the G9 provides a higher frame rate than the ZS70. It can shoot video footage at 4K/60p, while the ZS70 is limited to 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 G9 offers a substantially higher resolution than the one in the ZS70 (3680k vs 1166k dots). The adjacent table lists some of the other core features of the Panasonic G9 and Panasonic ZS70 along with similar information for a selection of comparators.
|7.||Olympus E-M1 III||2360||n||3.0||1037||swivel||Y||1/8000s||18.0||n||Y|
|8.||Olympus E-M1 II||2360||n||3.0||1037||swivel||Y||1/8000s||18.0||n||Y|
|16.||Sony A7 III||2359||n||3.0||922||tilting||Y||1/8000s||10.0||n||Y|
One feature that is present on the G9, but is missing on the ZS70 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.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, 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 G9 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 G9 and the ZS70 write their files to SDXC cards. The G9 features dual card slots, which can be very useful in case a memory card fails. In contrast, the ZS70 only has one slot. The G9 supports UHS-II cards (on both slots), while the ZS70 can use UHS-I 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 DC-G9 and Panasonic Lumix DC-ZS70 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|7.||Olympus E-M1 III||Y||stereo||mono||Y||Y||micro||3.1||Y||-||Y|
|8.||Olympus E-M1 II||Y||stereo||mono||Y||Y||micro||3.0||Y||-||-|
|16.||Sony A7 III||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y|
It is notable that the G9 has a hotshoe, while the ZS70 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.
Studio photographers will appreciate that the Panasonic G9 (unlike the ZS70) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
The G9 is a recent model that features in the current product line-up of Panasonic. In contrast, the ZS70 has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the ZS70 was succeeded by the Panasonic ZS80. 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 G9 and the Panasonic ZS70? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.
Arguments in favor of the Panasonic Lumix DC-G9:
- High quality composites: Can combine several shots after pixel-shifting its sensor.
- Better image quality: Features a larger and more technologically advanced imaging 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 movie framerates (4K/60p versus 4K/30p).
- 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.
- More detailed viewfinder: Has higher resolution electronic viewfinder (3680k vs 1166k dots).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.83x vs 0.46x).
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
- Faster burst: Shoots at higher frequency (20 vs 10 flaps/sec) to capture the decisive moment.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More flexible: Accepts interchangeable lenses, so that lens characteristics can be altered.
- Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
- Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
- More solid recording: Has a full-sized HDMI port for a sturdy connection to an external recorder.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
- More modern: Is somewhat more recent (announced 6 months after the ZS70).
Advantages of the Panasonic Lumix DC-ZS70:
- Ready to shoot: Has an integrated lens, whereas the G9 necessitates an extra lens.
- More compact: Is smaller (112x67mm vs 137x97mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight even though it has a lens built in (unlike the G9).
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More heavily discounted: Has been on the market for longer (launched in April 2017).
If the number of relative strengths (bullet points above) is taken as a guide, the G9 is the clear winner of the match-up (25 : 6 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. 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 G9 and the Panasonic ZS70 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best Superzoom Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it says little about, for example, the shooting experience and imaging performance of the G9 and the ZS70 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 where reviews by experts come in. The following table reports the overall ratings of the cameras as published by some of the major 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 G9||..||+ +||85/100||5/5||5/5||Nov 2017||1,699|
|2.||Panasonic ZS70||..||+ +||..||4/5||4/5||Apr 2017||449|
|3.||Canon SX730||..||+||..||4/5||4/5||Apr 2017||399|
|4.||Canon SX720||..||+||..||4/5||4.5/5||Feb 2016||379|
|5.||Fujifilm X-H1||..||+||86/100||4.5/5||4.5/5||Feb 2018||1,899|
|6.||Nikon Z6||5/5||..||..||4.5/5||5/5||Aug 2018||1,999|
|7.||Olympus E-M1 III||5/5||..||83/100||4.5/5||4/5||Feb 2020||1,799|
|8.||Olympus E-M1 II||5/5||+ +||85/100||4.5/5||4.5/5||Sep 2016||1,999|
|9.||Panasonic S5||4.5/5||+ +||88/100||4.5/5||4.5/5||Sep 2020||1,999|
|10.||Panasonic ZS80||..||+ +||..||4.5/5||..||Feb 2019||449|
|11.||Panasonic GH5||4.5/5||+ +||85/100||4.5/5||5/5||Jan 2017||1,999|
|12.||Panasonic FZ80||..||+ +||..||4.5/5||4.5/5||Jan 2017||399|
|13.||Panasonic G80||..||+ +||84/100||5/5||4.5/5||Sep 2016||899|
|14.||Panasonic FZ150||3/5||+ +||76/100||4/5||4.5/5||Aug 2011||499|
|15.||Pentax KP||4/5||..||82/100||5/5||4.5/5||Jan 2017||1,099|
|16.||Sony A7 III||..||+ +||89/100||5/5||5/5||Feb 2018||1,999|
|17.||Sony A9||5/5||+ +||89/100||5/5||5/5||Apr 2017||4,499|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, though. The ratings are only valid when referring to cameras in the same category and of the same age. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. 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? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
Specifications: Panasonic G9 vs Panasonic ZS70
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 G9||Panasonic ZS70|
|Camera Type||Mirrorless system camera||Fixed lens compact camera|
|Camera Lens||Micro Four Thirds lenses||24-720mm f/3.3-6.4|
|Launch Date||November 2017||April 2017|
|Launch Price||USD 1,699||USD 449|
|Sensor Specs||Panasonic G9||Panasonic ZS70|
|Sensor Format||Four Thirds Sensor||1/2.3" Sensor|
|Sensor Size||17.3 x 13.0 mm||6.17 x 4.55 mm|
|Sensor Area||224.9 mm2||28.0735 mm2|
|Sensor Diagonal||21.6 mm||7.7 mm|
|Sensor Resolution||20.2 Megapixels||20.2 Megapixels|
|Image Resolution||5184 x 3888 pixels||5184 x 3888 pixels|
|Pixel Pitch||3.34 μm||1.18 μm|
|Pixel Density||8.96 MP/cm2||71.80 MP/cm2|
|Moiré control||no AA filter||no AA filter|
|Movie Capability||4K/60p Video||4K/30p Video|
|ISO Setting||200 - 25,600 ISO||80 - 3,200 ISO|
|ISO Boost||100 - 25,600 ISO||80 - 6,400 ISO|
|Image Processor||Venus 10||Venus|
|DXO Sensor Quality (score)||..||36|
|DXO Color Depth (bits)||..||19.1|
|DXO Dynamic Range (EV)||..||10.6|
|DXO Low Light (ISO)||..||106|
|Screen Specs||Panasonic G9||Panasonic ZS70|
|Viewfinder Type||Electronic viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||3680k dots||1166k dots|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1040k dots||1040k dots|
|LCD Attachment||Swivel screen||Tilting screen|
|Shooting Specs||Panasonic G9||Panasonic ZS70|
|Focus System||Contrast-detect AF||Contrast-detect AF|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/8000s||1/2000s|
|Continuous Shooting||20 shutter flaps/s||10 shutter flaps/s|
|Electronic Shutter||up to 1/32000s||up to 1/16000s|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|Image Stabilization||In-body stabilization||Lens-based stabilization|
|Fill Flash||no On-Board Flash||Build-in Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Dual card slots||Single card slot|
|UHS card support||Dual UHS-II||UHS-I|
|Connectivity Specs||Panasonic G9||Panasonic ZS70|
|External Flash||Hotshoe||no Hotshoe|
|Studio Flash||PC Sync socket||no PC Sync|
|USB Connector||USB 3.0||USB 2.0|
|HDMI Port||full HDMI||micro HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Headphone Socket||Headphone port||no Headphone port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Bluetooth Support||Bluetooth built-in||no Bluetooth|
|Body Specs||Panasonic G9||Panasonic ZS70|
|Environmental Sealing||Weathersealed body||not weather sealed|
|Battery Life (CIPA)||400 shots per charge||380 shots per charge|
|In-Camera Charging||USB charging||USB charging|
137 x 97 x 92 mm
(5.4 x 3.8 x 3.6 in)
112 x 67 x 41 mm
(4.4 x 2.6 x 1.6 in)
|Camera Weight||658 g (23.2 oz)||322 g (11.4 oz)|
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