Panasonic G3 vs TZ100
The Panasonic Lumix DMC-G3 and the Panasonic Lumix DMC-TZ100 (labelled Panasonic ZS100 in some countries) are two digital cameras that were officially introduced, respectively, in May 2011 and January 2016. The G3 is a mirrorless interchangeable lens camera, while the TZ100 is a fixed lens compact. The cameras are based on a Four Thirds (G3) and an one-inch (TZ100) sensor. The G3 has a resolution of 15.8 megapixels, whereas the TZ100 provides 20 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Panasonic G3||Panasonic TZ100|
|Mirrorless system camera||Fixed lens compact camera|
|Micro Four Thirds lenses||25-250mm f/2.8-5.9|
|15.8 MP, Four Thirds Sensor||20 MP, 1" Sensor|
|1080/60i Video||4K/30p Video|
|ISO 160-6,400||ISO 125-12,800 (80 - 25,600)|
|Electronic viewfinder (1440k dots)||Electronic viewfinder (1166k dots)|
|3.0 LCD, 460k dots||3.0 LCD, 1040k dots|
|Swivel touchscreen||Fixed touchscreen|
|4 shutter flaps per second||10 shutter flaps per second|
|Lens stabilization only||In-body stabilization|
|270 shots per battery charge||300 shots per battery charge|
|115 x 84 x 47 mm, 336 g||111 x 65 x 44 mm, 312 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DMC-G3 and the Panasonic Lumix DMC-TZ100? 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 G3 and the Panasonic TZ100. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All size dimensions are rounded to the nearest millimeter.
The G3 can be obtained in four different colors (black, brown, red, white), while the TZ100 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 TZ100 is notably smaller (25 percent) than the Panasonic G3. In this context, it is worth noting that neither the G3 nor the TZ100 are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the TZ100 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 TZ100 can take 300 images on a single charge of its DMW-BLG10 power pack. The power pack in the TZ100 can be charged via the USB port, which can be very convenient when travelling.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. In case you want to display and compare another camera duo, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.
|Panasonic G3||4.5 in||3.3 in||1.9 in||11.9 oz||270||n||May 2011||599|
|Panasonic TZ100||4.4 in||2.6 in||1.7 in||11.0 oz||300||n||Jan 2016||699|
|Canon G5 X||4.4 in||3.0 in||1.7 in||12.5 oz||210||n||Oct 2015||799|
|Canon M3||4.4 in||2.7 in||1.7 in||12.9 oz||250||n||Feb 2015||679|
|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 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 G1||4.9 in||3.3 in||1.8 in||12.7 oz||410||n||Sep 2008||599|
|Sony RX100 IV||4.0 in||2.3 in||1.6 in||10.5 oz||280||n||Jun 2015||999|
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.
Any camera decision will naturally be influenced heavily by the price. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. 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. 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. 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 tend to be more expensive and 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 TZ100 an one-inch sensor. The sensor area in the TZ100 is 48 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 2.7. The sensor in the G3 has a native 4:3 aspect ratio, while the one in the TZ100 offers a 3:2 aspect.
Despite having a smaller sensor, the TZ100 offers a higher resolution of 20 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 2.41μm versus 3.77μm for the G3). However, it should be noted that the TZ100 is much more recent (by 4 years and 7 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.
The resolution advantage of the Panasonic TZ100 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the TZ100 for good quality output (200 dots per inch) amounts to 27.4 x 18.2 inches or 69.5 x 46.3 cm, for very good quality (250 dpi) 21.9 x 14.6 inches or 55.6 x 37.1 cm, and for excellent quality (300 dpi) 18.2 x 12.2 inches or 46.3 x 30.9 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 DMC-TZ100 are ISO 125 to ISO 12800, with the possibility to increase the ISO range to 80-25600.
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. Of the two cameras under consideration, the TZ100 offers substantially better image quality than the G3 (overall score 14 points higher). The advantage is based on 1.8 bits higher color depth, 1.9 EV in additional dynamic range, and 0.3 stops of reduced low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Panasonic G3||Four Thirds||15.8||4592||3448||1080/60i||21.0||10.6||667||56|
|Canon G5 X||1-inch||20.0||5472||3648||1080/60p||..||..||..||..|
|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|
|Sony RX100 IV||1-inch||20.0||5472||3648||4K/30p||22.8||12.6||591||70|
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 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 TZ100 (1440k vs 1166k dots). The adjacent table lists some of the other core features of the Panasonic G3 and Panasonic TZ100 along with similar information for a selection of comparators.
|Canon G5 X||2360||n||3.0||1040||swivel||Y||1/2000s||5.9||Y||Y|
|Sony RX100 IV||2359||n||3.0||1228||tilting||n||1/2000s||16.0||Y||Y|
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 TZ100 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 TZ100 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 G3 and the TZ100 write their files to SDXC cards. The TZ100 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 DMC-TZ100 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
|Canon G5 X||Y||stereo||mono||-||-||mini||2.0||Y||Y||-|
|Sony RX100 IV||-||stereo||mono||-||-||micro||2.0||Y||Y||-|
It is notable that the G3 has a hotshoe, while the TZ100 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.
Both the G3 and the TZ100 have been discontinued, but can regularly be found used on eBay. The G3 was replaced by the Panasonic G5, while the TZ100 was followed by the Panasonic TZ200. 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? Which of the two cameras – the Panasonic G3 or the Panasonic TZ100 – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Panasonic Lumix DMC-G3:
- 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.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- 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).
Advantages of the Panasonic Lumix DMC-TZ100:
- More detail: Has more megapixels (20 vs 15.8MP), which boosts linear resolution by 15%.
- Better image quality: Scores substantially higher (14 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (1.8 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (1.9 EV of extra DR).
- 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.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Ready to shoot: Has an integrated lens, whereas the G3 necessitates an extra lens.
- More compact: Is smaller (111x65mm 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 (300 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 modern: Reflects 4 years and 7 months of technical progress since the G3 launch.
If the count of relative strengths (bullet points above) is taken as a measure, the TZ100 is the clear winner of the contest (17 : 8 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 wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro 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 TZ100 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 remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the G3 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 expert reviews are important. The following table reports the overall ratings of the cameras as published by some of the major 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 TZ100||+ +||82/100||4.5/5||4/5||4.5/5||Jan 2016||699|
|Canon G5 X||+ +||78/100||4.5/5||4/5||4.5/5||Oct 2015||799|
|Canon M3||o||75/100||4.5/5||4.5/5||4/5||Feb 2015||679|
|Panasonic TZ200||+ +||81/100||4.5/5||..||4.5/5||Feb 2018||799|
|Panasonic LX15||+ +||81/100||4/5||4.5/5||4.5/5||Sep 2016||699|
|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 G1||+ +||70/100||4/5||4.5/5||4.5/5||Sep 2008||599|
|Sony RX100 IV||+ +||85/100||4/5||4.5/5||4.5/5||Jun 2015||999|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. 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. 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 would like to check on the differences and similarities of other camera models, just use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
- Canon 1000D vs Panasonic TZ100
- Canon M200 vs Panasonic TZ100
- Canon SX530 vs Panasonic TZ100
- Fujifilm X-T10 vs Panasonic TZ100
- Leica M10 vs Panasonic G3
- Leica Q2 vs Panasonic G3
- Leica S3 vs Panasonic G3
- Olympus E-PL3 vs Panasonic G3
- Panasonic FZ200 vs Panasonic G3
- Panasonic FZ2000 vs Panasonic TZ100
- Panasonic G3 vs Sony NEX-5
- Panasonic TZ100 vs Ricoh WG-6
Specifications: Panasonic G3 vs Panasonic TZ100
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 TZ100|
|Camera Type||Mirrorless system camera||Fixed lens compact camera|
|Camera Lens||Micro Four Thirds lenses||25-250mm f/2.8-5.9|
|Launch Date||May 2011||January 2016|
|Launch Price||USD 599||USD 699|
|Sensor Specs||Panasonic G3||Panasonic TZ100|
|Sensor Format||Four Thirds Sensor||1" Sensor|
|Sensor Size||17.3 x 13.0 mm||13.2 x 8.8 mm|
|Sensor Area||224.9 mm2||116.16 mm2|
|Sensor Diagonal||21.6 mm||15.9 mm|
|Sensor Resolution||15.8 Megapixels||20 Megapixels|
|Image Resolution||4592 x 3448 pixels||5472 x 3648 pixels|
|Pixel Pitch||3.77 μm||2.41 μm|
|Pixel Density||7.04 MP/cm2||17.18 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/60i Video||4K/30p Video|
|ISO Setting||160 - 6,400 ISO||125 - 12,800 ISO|
|ISO Boost||no Enhancement||80 - 25,600 ISO|
|Image Processor||Venus FHD||Venus|
|DXO Sensor Quality (score)||56||70|
|DXO Color Depth (bits)||21.0||22.8|
|DXO Dynamic Range (EV)||10.6||12.5|
|DXO Low Light (ISO)||667||559|
|Screen Specs||Panasonic G3||Panasonic TZ100|
|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||Fixed screen|
|Shooting Specs||Panasonic G3||Panasonic TZ100|
|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|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|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 TZ100|
|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 TZ100|
|Battery Life (CIPA)||270 shots per charge||300 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)
111 x 65 x 44 mm
(4.4 x 2.6 x 1.7 in)
|Camera Weight||336 g (11.9 oz)||312 g (11.0 oz)|
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