Panasonic G1 vs ZS100
The Panasonic Lumix DMC-G1 and the Panasonic Lumix DMC-ZS100 (labelled Panasonic TZ100 in some countries) are two digital cameras that were announced, respectively, in September 2008 and January 2016. The G1 is a mirrorless interchangeable lens camera, while the ZS100 is a fixed lens compact. The cameras are based on a Four Thirds (G1) and an one-inch (ZS100) sensor. The G1 has a resolution of 12 megapixels, whereas the ZS100 provides 20 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-G1 and the Panasonic Lumix DMC-ZS100? 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 G1 and the Panasonic ZS100 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 width, height and depth dimensions are rounded to the nearest millimeter.
The ZS100 can be obtained in two different colors (black, silver), while the G1 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 ZS100 is considerably smaller (31 percent) than the Panasonic G1. In this context, it is worth noting that neither the G1 nor the ZS100 are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the ZS100 has a lens built in, whereas the G1 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 G1 and their specifications in the Micro Four Thirds Lens Catalog.
Concerning battery life, the G1 gets 410 shots out of its DMW-BLB13 battery, while the ZS100 can take 300 images on a single charge of its DMW-BLG10 power pack. The power pack in the ZS100 can be charged via the USB port, which can be very convenient when travelling.
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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 G1||124 mm||84 mm||45 mm||360 g||410||n||Sep 2008||599|
|2.||Panasonic ZS100||111 mm||65 mm||44 mm||312 g||300||n||Jan 2016||699|
|3.||Olympus E-410||130 mm||91 mm||53 mm||435 g||500||n||Mar 2007||699|
|4.||Panasonic ZS200||111 mm||65 mm||45 mm||340 g||370||n||Feb 2018||799|
|5.||Panasonic LX10||106 mm||60 mm||42 mm||310 g||260||n||Sep 2016||699|
|6.||Panasonic GF6||111 mm||65 mm||38 mm||323 g||340||n||Apr 2013||499|
|7.||Panasonic GF5||108 mm||67 mm||37 mm||267 g||360||n||Apr 2012||499|
|8.||Panasonic GF3||108 mm||67 mm||32 mm||264 g||300||n||Jun 2011||549|
|9.||Panasonic G10||124 mm||84 mm||74 mm||388 g||380||n||Mar 2010||499|
|10.||Panasonic G2||124 mm||84 mm||74 mm||428 g||360||n||Mar 2010||599|
|11.||Panasonic GF2||113 mm||68 mm||33 mm||310 g||300||n||Nov 2010||549|
|12.||Panasonic GF1||119 mm||71 mm||36 mm||385 g||380||n||Sep 2009||749|
|13.||Panasonic GH1||124 mm||90 mm||45 mm||385 g||300||n||Mar 2009||899|
|14.||Panasonic L10||135 mm||96 mm||78 mm||556 g||450||n||Aug 2007||599|
|15.||Sony RX100 V||102 mm||58 mm||41 mm||299 g||220||n||Oct 2016||999|
|16.||Sony RX100 III||102 mm||58 mm||41 mm||290 g||320||n||May 2014||799|
|17.||Sony RX100 II||102 mm||58 mm||38 mm||281 g||350||n||Jun 2013||749|
|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 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.
The size of the imaging sensor is a crucial determinant 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 tend to be more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Panasonic G1 features a Four Thirds sensor and the Panasonic ZS100 an one-inch sensor. The sensor area in the ZS100 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 G1 has a native 4:3 aspect ratio, while the one in the ZS100 offers a 3:2 aspect.
Despite having a smaller sensor, the ZS100 offers a higher resolution of 20 megapixels, compared with 12 MP of the G1. 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 4.33μm for the G1). However, it should be noted that the ZS100 is much more recent (by 7 years and 3 months) than the G1, 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 ZS100 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the ZS100 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 G1 are 20 x 15 inches or 50.8 x 38.1 cm for good quality, 16 x 12 inches or 40.6 x 30.5 cm for very good quality, and 13.3 x 10 inches or 33.9 x 25.4 cm for excellent quality prints.
The Panasonic Lumix DMC-G1 has a native sensitivity range from ISO 100 to ISO 1600, which can be extended to ISO 100-3200. The corresponding ISO settings for the Panasonic Lumix DMC-ZS100 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 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"). Of the two cameras under consideration, the ZS100 offers substantially better image quality than the G1 (overall score 17 points higher). The advantage is based on 1.7 bits higher color depth, 2.2 EV in additional dynamic range, and 0.3 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 |
|1.||Panasonic G1||Four Thirds||12.0||4000||3000||none||21.1||10.3||463||53|
|3.||Olympus E-410||Four Thirds||10.0||3648||2736||none||21.1||10.0||494||51|
|6.||Panasonic GF6||Four Thirds||15.8||4592||3448||1080/60i||20.7||10.6||622||54|
|7.||Panasonic GF5||Four Thirds||12.0||4000||3000||1080/60i||21.4||11.6||618||61|
|8.||Panasonic GF3||Four Thirds||12.0||4000||3000||1080/60i||20.6||10.0||458||49|
|9.||Panasonic G10||Four Thirds||12.0||4000||3000||720/30p||21.2||10.1||411||52|
|10.||Panasonic G2||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||493||53|
|11.||Panasonic GF2||Four Thirds||12.0||4000||3000||1080/60i||21.2||10.3||506||54|
|12.||Panasonic GF1||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||513||54|
|13.||Panasonic GH1||Four Thirds||12.0||4000||3000||1080/24p||21.6||11.6||772||64|
|14.||Panasonic L10||Four Thirds||10.0||3648||2736||none||21.3||10.8||429||55|
|15.||Sony RX100 V||1-inch||20.0||5472||3648||4K/30p||22.8||12.4||586||70|
|16.||Sony RX100 III||1-inch||20.0||5472||3648||1080/60p||22.4||12.3||495||67|
|17.||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. The ZS100 indeed provides for movie recording, while the G1 does not. The highest resolution format that the ZS100 can use is 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 G1 offers a higher resolution than the one in the ZS100 (1440k vs 1166k dots). The following table reports on some other key feature differences and similarities of the Panasonic G1, the Panasonic ZS100, and comparable cameras.
|15.||Sony RX100 V||2359||n||3.0||1229||tilting||n||1/2000s||24.0||Y||Y|
|16.||Sony RX100 III||1440||n||3.0||1229||tilting||n||1/2000s||10.0||Y||Y|
|17.||Sony RX100 II||optional||n||3.0||1229||tilting||n||1/2000s||10.0||Y||Y|
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The ZS100 has a touchscreen, while the G1 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.The G1 has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the ZS100 does not have a selfie-screen.
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 ZS100 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 ZS100 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.
The G1 writes its imaging data to SDHC cards, while the ZS100 uses SDXC cards. The ZS100 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the G1 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-G1 and Panasonic Lumix DMC-ZS100 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|15.||Sony RX100 V||-||stereo||mono||-||-||micro||2.0||Y||Y||-|
|16.||Sony RX100 III||-||stereo||mono||-||-||micro||2.0||Y||Y||-|
|17.||Sony RX100 II||Y||stereo||mono||-||-||micro||2.0||Y||Y||-|
It is notable that the G1 has a hotshoe, while the ZS100 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.
Both the G1 and the ZS100 have been discontinued, but can regularly be found used on eBay. The G1 was replaced by the Panasonic G2, while the ZS100 was followed by the Panasonic ZS200. 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 is the bottom line? Is there a clear favorite between the Panasonic G1 and the Panasonic ZS100? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the Panasonic Lumix DMC-G1:
- 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.
- Longer lasting: Can take more shots (410 versus 300) on a single battery charge.
- 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 September 2008).
Arguments in favor of the Panasonic Lumix DMC-ZS100:
- More detail: Has more megapixels (20 vs 12MP), which boosts linear resolution by 32%.
- Better image quality: Scores substantially higher (17 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (1.7 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (2.2 EV of extra DR).
- Broader imaging potential: Can capture not only stills but also 4K/30p video.
- 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.
- Faster burst: Shoots at higher frequency (10 vs 3 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 G1 necessitates an extra lens.
- More compact: Is smaller (111x65mm vs 124x84mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight even though it has a lens built in (unlike the G1).
- 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 7 years and 3 months of technical progress since the G1 launch.
If the count of individual advantages (bullet points above) is taken as a guide, the ZS100 is the clear winner of the contest (18 : 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 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 G1 and the Panasonic ZS100 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 G1 and the ZS100 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 where reviews by experts come in. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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 G1||..||+ +||70/100||4/5||4.5/5||Sep 2008||599|
|2.||Panasonic ZS100||4.5/5||+ +||82/100||4.5/5||4.5/5||Jan 2016||699|
|3.||Olympus E-410||..||86/100||+ +||4/5||4.5/5||Mar 2007||699|
|4.||Panasonic ZS200||..||+ +||81/100||4.5/5||4.5/5||Feb 2018||799|
|5.||Panasonic LX10||..||+ +||81/100||4/5||4.5/5||Sep 2016||699|
|6.||Panasonic GF6||..||+ +||..||4.5/5||4.5/5||Apr 2013||499|
|7.||Panasonic GF5||3/5||..||..||4.5/5||4.5/5||Apr 2012||499|
|8.||Panasonic GF3||3/5||82/100||71/100||4.5/5||4/5||Jun 2011||549|
|9.||Panasonic G10||3/5||..||70/100||4/5||4/5||Mar 2010||499|
|10.||Panasonic G2||..||..||72/100||4/5||4.5/5||Mar 2010||599|
|11.||Panasonic GF2||3/5||82/100||70/100||4.5/5||4.5/5||Nov 2010||549|
|12.||Panasonic GF1||..||85/100||69/100||4.5/5||4.5/5||Sep 2009||749|
|13.||Panasonic GH1||..||+ +||72/100||4.5/5||4.5/5||Mar 2009||899|
|14.||Panasonic L10||..||85/100||+||3.5/5||4/5||Aug 2007||599|
|15.||Sony RX100 V||4.5/5||+ +||83/100||4/5||4.5/5||Oct 2016||999|
|16.||Sony RX100 III||5/5||+ +||82/100||4.5/5||5/5||May 2014||799|
|17.||Sony RX100 II||5/5||+ +||79/100||4.5/5||4.5/5||Jun 2013||749|
|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
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Specifications: Panasonic G1 vs Panasonic ZS100
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 G1||Panasonic ZS100|
|Camera Type||Mirrorless system camera||Fixed lens compact camera|
|Camera Lens||Micro Four Thirds lenses||25-250mm f/2.8-5.9|
|Launch Date||September 2008||January 2016|
|Launch Price||USD 599||USD 699|
|Sensor Specs||Panasonic G1||Panasonic ZS100|
|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||12 Megapixels||20 Megapixels|
|Image Resolution||4000 x 3000 pixels||5472 x 3648 pixels|
|Pixel Pitch||4.33 μm||2.41 μm|
|Pixel Density||5.34 MP/cm2||17.18 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||no Video||4K/30p Video|
|ISO Setting||100 - 1,600 ISO||125 - 12,800 ISO|
|ISO Boost||100 - 3,200 ISO||80 - 25,600 ISO|
|Image Processor||Venus HD||Venus|
|DXO Sensor Quality (score)||53||70|
|DXO Color Depth (bits)||21.1||22.8|
|DXO Dynamic Range (EV)||10.3||12.5|
|DXO Low Light (ISO)||463||559|
|Screen Specs||Panasonic G1||Panasonic ZS100|
|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|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Panasonic G1||Panasonic ZS100|
|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||3 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||Built-in Flash||Built-in Flash|
|Storage Medium||SDHC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||no||UHS-I|
|Connectivity Specs||Panasonic G1||Panasonic ZS100|
|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 G1||Panasonic ZS100|
|Battery Life (CIPA)||410 shots per charge||300 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
124 x 84 x 45 mm
(4.9 x 3.3 x 1.8 in)
111 x 65 x 44 mm
(4.4 x 2.6 x 1.7 in)
|Camera Weight||360 g (12.7 oz)||312 g (11.0 oz)|
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