Panasonic G3 vs TZ90
The Panasonic Lumix DMC-G3 and the Panasonic Lumix DC-TZ90 (labelled Panasonic ZS70 in some countries) are two digital cameras that were announced, respectively, in May 2011 and April 2017. The G3 is a mirrorless interchangeable lens camera, while the TZ90 is a fixed lens compact. The cameras are based on a Four Thirds (G3) and a 1/2.3-inch (TZ90) sensor. The G3 has a resolution of 15.8 megapixels, whereas the TZ90 provides 20.2 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-G3 and the Panasonic Lumix DC-TZ90? 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.
An illustration of the physical size and weight of the Panasonic G3 and the Panasonic TZ90 is provided 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 G3 can be obtained in four different colors (black, brown, red, white), while the TZ90 is available in two color-versions (black, silver).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic TZ90 is notably smaller (22 percent) than the Panasonic G3. In this context, it is worth noting that neither the G3 nor the TZ90 are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the TZ90 has a lens built in, whereas the G3 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 G3 and their specifications in the Micro Four Thirds Lens Catalog.
Concerning battery life, the G3 gets 270 shots out of its DMW-BLD10 battery, while the TZ90 can take 380 images on a single charge of its DMW-BLG10 power pack. The power pack in the TZ90 can be charged via the USB port, 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. 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.
|Panasonic G3||4.5 in||3.3 in||1.9 in||11.9 oz||270||n||May 2011||599|
|Panasonic TZ90||4.4 in||2.6 in||1.6 in||11.4 oz||380||n||Apr 2017||449|
|Canon SX730||4.3 in||2.5 in||1.6 in||10.6 oz||250||n||Apr 2017||399|
|Fujifilm XF10||4.4 in||2.5 in||1.6 in||9.8 oz||330||n||Jul 2018||499|
|Panasonic TZ95||4.4 in||2.7 in||1.7 in||11.5 oz||380||n||Feb 2019||449|
|Panasonic FT7||4.6 in||3.0 in||1.5 in||11.3 oz||300||Y||May 2018||449|
|Panasonic G6||4.8 in||3.3 in||2.8 in||13.8 oz||340||n||Apr 2013||599|
|Panasonic GF6||4.4 in||2.6 in||1.5 in||11.4 oz||340||n||Apr 2013||499|
|Panasonic G5||4.7 in||3.3 in||2.8 in||14.0 oz||320||n||Jul 2012||599|
|Panasonic GF3||4.3 in||2.6 in||1.3 in||9.3 oz||300||n||Jun 2011||549|
|Panasonic GX1||4.6 in||2.7 in||1.5 in||11.2 oz||320||n||Nov 2011||699|
|Panasonic G10||4.9 in||3.3 in||2.9 in||13.7 oz||380||n||Mar 2010||499|
|Panasonic G2||4.9 in||3.3 in||2.9 in||15.1 oz||360||n||Mar 2010||599|
|Panasonic GF2||4.4 in||2.7 in||1.3 in||10.9 oz||300||n||Nov 2010||549|
|Panasonic GH2||4.9 in||3.5 in||3.0 in||15.6 oz||330||n||Sep 2010||899|
|Panasonic LX5||4.3 in||2.6 in||1.7 in||9.6 oz||400||n||Jul 2010||499|
|Panasonic G1||4.9 in||3.3 in||1.8 in||12.7 oz||410||n||Sep 2008||599|
|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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The TZ90 was launched at a lower price than the G3, 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. 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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Panasonic G3 features a Four Thirds sensor and the Panasonic TZ90 a 1/2.3-inch sensor. The sensor area in the TZ90 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.
Despite having a smaller sensor, the TZ90 offers a higher resolution of 20.2 megapixels, compared with 15.8 MP of the G3. 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 1.18μm versus 3.77μm for the G3). However, it should be noted that the TZ90 is much more recent (by 5 years and 11 months) than the G3, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. Coming back to sensor resolution, it should be mentioned that the TZ90 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Panasonic TZ90 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the TZ90 for good quality output (200 dots per inch) amounts to 25.9 x 19.4 inches or 65.8 x 49.4 cm, for very good quality (250 dpi) 20.7 x 15.6 inches or 52.7 x 39.5 cm, and for excellent quality (300 dpi) 17.3 x 13 inches or 43.9 x 32.9 cm. The corresponding values for the Panasonic G3 are 23 x 17.2 inches or 58.3 x 43.8 cm for good quality, 18.4 x 13.8 inches or 46.7 x 35 cm for very good quality, and 15.3 x 11.5 inches or 38.9 x 29.2 cm for excellent quality prints.
The Panasonic Lumix DMC-G3 has a native sensitivity range from ISO 160 to ISO 6400. The corresponding ISO settings for the Panasonic Lumix DC-TZ90 are ISO 80 to ISO 3200, with the possibility to increase the ISO range to 80-6400.
Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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. Of the two cameras under review, the G3 provides substantially higher image quality than the TZ90, with an overall score that is 20 points higher. This advantage is based on 1.9 bits higher color depth, and 2.7 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
| DXO |
|Panasonic G3||Four Thirds||15.8||4592||3448||1080/60i||21.0||10.6||667||56|
|Panasonic G6||Four Thirds||15.9||4608||3456||1080/60p||21.3||11.5||639||61|
|Panasonic GF6||Four Thirds||15.8||4592||3448||1080/60i||20.7||10.6||622||54|
|Panasonic G5||Four Thirds||15.9||4608||3456||1080/60p||..||..||..||..|
|Panasonic GF3||Four Thirds||12.0||4000||3000||1080/60i||20.6||10.0||458||49|
|Panasonic GX1||Four Thirds||15.8||4592||3448||1080/60p||20.8||10.6||703||55|
|Panasonic G10||Four Thirds||12.0||4000||3000||720/30p||21.2||10.1||411||52|
|Panasonic G2||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||493||53|
|Panasonic GF2||Four Thirds||12.0||4000||3000||1080/60i||21.2||10.3||506||54|
|Panasonic GH2||Four Thirds||15.9||4608||3456||1080/60i||21.2||11.3||655||60|
|Panasonic G1||Four Thirds||12.0||4000||3000||none||21.1||10.3||463||53|
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 TZ90 provides a better video resolution than the G3. It can shoot movie footage at 4K/30p, while the G3 is limited to 1080/60i.
Apart from body and sensor, cameras can and do differ across a range of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the G3 offers a higher resolution than the one in the TZ90 (1440k vs 1166k dots). The table below summarizes some of the other core capabilities of the Panasonic G3 and Panasonic TZ90 in connection with corresponding information for a sample of similar cameras.
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 TZ90 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).
Concerning the storage of imaging data, both the G3 and the TZ90 write their files to SDXC cards. The TZ90 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the G3 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-G3 and Panasonic Lumix DC-TZ90 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
It is notable that the G3 has a hotshoe, while the TZ90 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.
Both the G3 and the TZ90 have been discontinued, but can regularly be found used on eBay. The G3 was replaced by the Panasonic G5, while the TZ90 was followed by the Panasonic TZ95. 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 how do things add up? Is the Panasonic G3 better than the Panasonic TZ90 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-G3:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better image quality: Scores substantially higher (20 points) in the DXO overall assessment.
- Richer colors: Generates images with noticeably better colors (1.9 bits more color depth).
- Better low-light sensitivity: Requires less light for good images (2.7 stops ISO advantage).
- More detailed viewfinder: Has higher resolution electronic viewfinder (1440k vs 1166k dots).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.70x vs 0.46x).
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/2000s) to freeze action.
- More flexible: Accepts interchangeable lenses, so that lens characteristics can be altered.
- Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- More heavily discounted: Has been available for much longer (launched in May 2011).
Arguments in favor of the Panasonic Lumix DC-TZ90:
- More detail: Has more megapixels (20.2 vs 15.8MP), which boosts linear resolution by 13%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- 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).
- Faster burst: Shoots at higher frequency (10 vs 4 flaps/sec) to capture the decisive moment.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- Ready to shoot: Has an integrated lens, whereas the G3 necessitates an extra lens.
- More compact: Is smaller (112x67mm vs 115x84mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight even though it has a lens built in (unlike the G3).
- Longer lasting: Gets more shots (380 versus 270) out of a single battery charge.
- Easier travel charging: Can be conveniently charged via its USB port.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- 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 affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More modern: Reflects 5 years and 11 months of technical progress since the G3 launch.
If the number of relative strengths (bullet points above) is taken as a guide, the TZ90 is the clear winner of the contest (16 : 11 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 G3 and the Panasonic TZ90 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 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 G3 and the TZ90 in practical situations. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.
This is why hands-on reviews by experts are important. The adjacent summary-table relays the overall verdicts of several of the most popular 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 G3||+ +||75/100||4.5/5||4.5/5||5/5||May 2011||599|
|Panasonic TZ90||+ +||..||4/5||..||4/5||Apr 2017||449|
|Canon SX730||+||..||4/5||..||4/5||Apr 2017||399|
|Fujifilm XF10||..||75/100||4/5||..||4.5/5||Jul 2018||499|
|Panasonic TZ95||+ +||..||4.5/5||..||..||Feb 2019||449|
|Panasonic FT7||+||..||3.5/5||..||3.5/5||May 2018||449|
|Panasonic G6||+ +||..||5/5||..||4.5/5||Apr 2013||599|
|Panasonic GF6||+ +||..||4.5/5||..||4.5/5||Apr 2013||499|
|Panasonic G5||+ +||..||4.5/5||4.5/5||4.5/5||Jul 2012||599|
|Panasonic GF3||82/100||71/100||4.5/5||4.5/5||4/5||Jun 2011||549|
|Panasonic GX1||+||77/100||4.5/5||4.5/5||4.5/5||Nov 2011||699|
|Panasonic G10||..||70/100||4/5||..||4/5||Mar 2010||499|
|Panasonic G2||..||72/100||4/5||4/5||4.5/5||Mar 2010||599|
|Panasonic GF2||82/100||70/100||4.5/5||4.5/5||4.5/5||Nov 2010||549|
|Panasonic GH2||+ +||79/100||4.5/5||4.5/5||5/5||Sep 2010||899|
|Panasonic LX5||+||73/100||4.5/5||5/5||4.5/5||Jul 2010||499|
|Panasonic G1||+ +||70/100||4/5||4.5/5||4.5/5||Sep 2008||599|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The review scores listed above should be treated 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 comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
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 G3 vs Panasonic TZ90
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 G3||Panasonic TZ90|
|Camera Type||Mirrorless system camera||Fixed lens compact camera|
|Camera Lens||Micro Four Thirds lenses||24-720mm f/3.3-6.4|
|Launch Date||May 2011||April 2017|
|Launch Price||USD 599||USD 449|
|Sensor Specs||Panasonic G3||Panasonic TZ90|
|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||15.8 Megapixels||20.2 Megapixels|
|Image Resolution||4592 x 3448 pixels||5184 x 3888 pixels|
|Pixel Pitch||3.77 μm||1.18 μm|
|Pixel Density||7.04 MP/cm2||71.80 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||1080/60i Video||4K/30p Video|
|ISO Setting||160 - 6,400 ISO||80 - 3,200 ISO|
|ISO Boost||no Enhancement||80 - 6,400 ISO|
|Image Processor||Venus FHD||Venus|
|DXO Sensor Quality (score)||56||36|
|DXO Color Depth (bits)||21.0||19.1|
|DXO Dynamic Range (EV)||10.6||10.6|
|DXO Low Light (ISO)||667||106|
|Screen Specs||Panasonic G3||Panasonic TZ90|
|Viewfinder Type||Electronic viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||1440k dots||1166k 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|
|Shooting Specs||Panasonic G3||Panasonic TZ90|
|Focus System||Contrast-detect AF||Contrast-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/2000s|
|Continuous Shooting||4 shutter flaps/s||10 shutter flaps/s|
|Electronic Shutter||no E-Shutter||up to 1/16000s|
|Fill Flash||Build-in Flash||Build-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 G3||Panasonic TZ90|
|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 G3||Panasonic TZ90|
|Battery Life (CIPA)||270 shots per charge||380 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
115 x 84 x 47 mm
(4.5 x 3.3 x 1.9 in)
112 x 67 x 41 mm
(4.4 x 2.6 x 1.6 in)
|Camera Weight||336 g (11.9 oz)||322 g (11.4 oz)|
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