Olympus E-M1 vs Panasonic ZS100
The Olympus OM-D E-M1 and the Panasonic Lumix DMC-ZS100 (labelled Panasonic TZ100 in some countries) are two digital cameras that were announced, respectively, in September 2013 and January 2016. The E-M1 is a mirrorless interchangeable lens camera, while the ZS100 is a fixed lens compact. The cameras are based on a Four Thirds (E-M1) and an one-inch (ZS100) sensor. The Olympus has a resolution of 15.9 megapixels, whereas the Panasonic provides 20 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Olympus E-M1||Panasonic ZS100|
|Mirrorless system camera||Fixed lens compact camera|
|Micro Four Thirds lenses||25-250mm f/2.8-5.9|
|15.9 MP, Four Thirds Sensor||20 MP, 1" Sensor|
|1080/30p Video||4K/30p Video|
|ISO 100-25600||ISO 125-12800 (80-25600)|
|Electronic viewfinder (2360k dots)||Electronic viewfinder (1166k dots)|
|3.0" LCD, 1037k dots||3.0" LCD, 1040k dots|
|Tilting touchscreen||Fixed touchscreen|
|10 shutter flaps per second||10 shutter flaps per second|
|In-body stabilization||In-body stabilization|
|Weathersealed body||Not weather sealed|
|350 shots per battery charge||300 shots per battery charge|
|130 x 94 x 63 mm, 497 g||111 x 65 x 44 mm, 312 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus OM-D E-M1 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 side-by-side display below illustrates the physical size and weight of the Olympus E-M1 and the Panasonic ZS100. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth measures are rounded to the nearest millimeter.
Both cameras are available in two different colors (black, silver).
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 (41 percent) than the Olympus E-M1. It is worth mentioning in this context that the E-M1 is splash and dust resistant, while the ZS100 does not feature any corresponding weather-sealing.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the ZS100 has a lens built in, whereas the E-M1 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 E-M1 and their specifications in the Micro Four Thirds Lens Catalog.
Concerning battery life, the E-M1 gets 350 shots out of its BLN-1 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 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, 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.
|Olympus E-M1»||5.1 in||3.7 in||2.5 in||17.5 oz||350||Y||Sep 2013||1,399||-||Olympus E-M1|
|Panasonic ZS100«||4.4 in||2.6 in||1.7 in||11.0 oz||300||n||Jan 2016||699||-||Panasonic ZS100|
|Olympus E-M1 II« »||5.3 in||3.6 in||2.6 in||20.2 oz||440||Y||Sep 2016||1,999||Olympus E-M1 II|
|Olympus PEN-F« »||4.9 in||2.8 in||1.5 in||15.1 oz||330||n||Jan 2016||1,199||Olympus PEN-F|
|Olympus E-M5 II« »||4.9 in||3.3 in||1.8 in||16.5 oz||310||Y||Feb 2015||1,099||Olympus E-M5 II|
|Olympus E-PL7« »||4.5 in||2.6 in||1.5 in||12.6 oz||350||n||Aug 2014||599||-||Olympus E-PL7|
|Olympus E-P5« »||4.8 in||2.7 in||1.5 in||14.8 oz||330||n||May 2013||999||-||Olympus E-P5|
|Olympus E-M5« »||4.8 in||3.5 in||1.7 in||15.0 oz||360||Y||Feb 2012||1,299||-||Olympus E-M5|
|Olympus E-PL5« »||4.4 in||2.5 in||1.5 in||11.5 oz||360||n||Sep 2012||599||-||Olympus E-PL5|
|Olympus E-PM2« »||4.3 in||2.5 in||1.3 in||9.5 oz||360||n||Sep 2012||499||-||Olympus E-PM2|
|Panasonic ZS200« »||4.4 in||2.6 in||1.8 in||12.0 oz||370||n||Feb 2018||799||Panasonic ZS200|
|Panasonic LX10« »||4.2 in||2.4 in||1.7 in||10.9 oz||260||n||Sep 2016||699||Panasonic LX10|
|Panasonic GH4« »||5.2 in||3.7 in||3.3 in||19.8 oz||500||Y||Feb 2014||1,499||-||Panasonic GH4|
|Panasonic GH3« »||5.2 in||3.7 in||3.2 in||19.4 oz||540||Y||Sep 2012||1,299||-||Panasonic GH3|
|Sony RX100 V« »||4.0 in||2.3 in||1.6 in||10.5 oz||220||n||Oct 2016||999||Sony RX100 V|
|Sony RX100 III« »||4.0 in||2.3 in||1.6 in||10.2 oz||320||n||May 2014||799||-||Sony RX100 III|
|Sony RX100 II« »||4.0 in||2.3 in||1.5 in||9.9 oz||350||n||Jun 2013||749||-||Sony RX100 II|
|Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.|
The price is, of course, an important factor in any camera decision. 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 ZS100 was launched at a lower price than the E-M1, 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 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 Olympus E-M1 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 E-M1 has a native 4:3 aspect ratio, while the one in the ZS100 offers a 3:2 aspect.
In terms of underlying technology, both cameras are build around CMOS sensors.
Despite having a smaller sensor, the ZS100 offers a higher resolution of 20 megapixels, compared with 15.9 MP of the E-M1. 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 3.76μm for the E-M1). However, it should be noted that the ZS100 is much more recent (by 2 years and 3 months) than the E-M1, 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 E-M1 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
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 inch or 69.5 x 46.3 cm, for very good quality (250 dpi) 21.9 x 14.6 inch or 55.6 x 37.1 cm, and for excellent quality (300 dpi) 18.2 x 12.2 inch or 46.3 x 30.9 cm. The corresponding values for the Olympus E-M1 are 23 x 17.3 inch or 58.5 x 43.9 cm for good quality, 18.4 x 13.8 inch or 46.8 x 35.1 cm for very good quality, and 15.4 x 11.5 inch or 39 x 29.3 cm for excellent quality prints.
The E-M1 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Olympus OM-D E-M1 has a native sensitivity range from ISO 100 to ISO 25600. 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.
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 Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
|Olympus E-M1»||Four Thirds||15.9||4608||3456||1080/30p||23.0||12.7||757||73||Olympus E-M1|
|Panasonic ZS100«||1-inch||20.0||5472||3648||4K/30p||22.8||12.5||559||70||Panasonic ZS100|
|Olympus E-M1 II« »||Four Thirds||20.2||5184||3888||4K/30p||23.7||12.8||1312||80||Olympus E-M1 II|
|Olympus PEN-F« »||Four Thirds||20.2||5184||3888||1080/60p||23.1||12.4||894||74||Olympus PEN-F|
|Olympus E-M5 II« »||Four Thirds||15.9||4608||3456||1080/60p||23.0||12.5||842||73||Olympus E-M5 II|
|Olympus E-PL7« »||Four Thirds||15.9||4608||3456||1080/30p||22.7||12.4||873||72||Olympus E-PL7|
|Olympus E-P5« »||Four Thirds||15.9||4608||3456||1080/30p||22.8||12.4||895||72||Olympus E-P5|
|Olympus E-M5« »||Four Thirds||15.9||4608||3456||1080/60i||22.8||12.3||826||71||Olympus E-M5|
|Olympus E-PL5« »||Four Thirds||15.9||4608||3456||1080/30p||22.8||12.3||889||72||Olympus E-PL5|
|Olympus E-PM2« »||Four Thirds||15.9||4608||3456||1080/30p||22.7||12.2||932||72||Olympus E-PM2|
|Panasonic ZS200« »||1-inch||20.0||5472||3648||4K/30p||-||-||-||-||Panasonic ZS200|
|Panasonic LX10« »||1-inch||20.0||5472||3648||4K/30p||-||-||-||-||Panasonic LX10|
|Panasonic GH4« »||Four Thirds||15.9||4608||3456||4K/30p||23.2||12.8||791||74||Panasonic GH4|
|Panasonic GH3« »||Four Thirds||15.9||4608||3456||1080/60p||22.7||12.4||812||71||Panasonic GH3|
|Sony RX100 V« »||1-inch||20.0||5472||3648||4K/30p||22.8||12.4||586||70||Sony RX100 V|
|Sony RX100 III« »||1-inch||20.0||5472||3648||1080/60p||22.4||12.3||495||67||Sony RX100 III|
|Sony RX100 II« »||1-inch||20.0||5472||3648||1080/60p||22.5||12.4||483||67||Sony RX100 II|
Many modern cameras cannot only take still pictures, but also record videos. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the ZS100 provides a better video resolution than the E-M1. It can shoot movie footage at 4K/30p, while the Olympus is limited to 1080/30p.
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 E-M1 offers a substantially higher resolution than the one in the ZS100 (2360k vs 1166k dots). The table below summarizes some of the other core capabilities of the Olympus E-M1 and Panasonic ZS100 in connection with corresponding information for a sample of similar cameras.
|Olympus E-M1»||2360||n||3.0||1037||tilting||Y||1/8000s||10.0||n||Y||Olympus E-M1|
|Panasonic ZS100«||1166||n||3.0||1040||fixed||Y||1/2000s||10.0||Y||Y||Panasonic ZS100|
|Olympus E-M1 II« »||2360||n||3.0||1037||swivel||Y||1/8000s||18.0||n||Y||Olympus E-M1 II|
|Olympus PEN-F« »||2360||n||3.0||1037||swivel||Y||1/8000s||10.0||n||Y||Olympus PEN-F|
|Olympus E-M5 II« »||2360||n||3.0||1037||swivel||Y||1/8000s||10.0||n||Y||Olympus E-M5 II|
|Olympus E-PL7« »||-||n||3.0||1037||tilting||Y||1/4000s||8.0||n||Y||Olympus E-PL7|
|Olympus E-P5« »||-||n||3.0||1037||tilting||Y||1/8000s||9.0||Y||Y||Olympus E-P5|
|Olympus E-M5« »||1440||n||3.0||610||tilting||Y||1/4000s||9.0||n||Y||Olympus E-M5|
|Olympus E-PL5« »||-||n||3.0||460||tilting||Y||1/4000s||8.0||n||Y||Olympus E-PL5|
|Olympus E-PM2« »||-||n||3.0||460||fixed||Y||1/4000s||8.0||n||Y||Olympus E-PM2|
|Panasonic ZS200« »||2330||n||3.0||1240||fixed||Y||1/2000s||10.0||Y||Y||Panasonic ZS200|
|Panasonic LX10« »||-||n||3.0||1040||tilting||Y||1/4000s||10.0||Y||Y||Panasonic LX10|
|Panasonic GH4« »||2359||n||3.0||1036||swivel||Y||1/8000s||12.0||Y||n||Panasonic GH4|
|Panasonic GH3« »||1746||n||3.0||614||swivel||Y||1/4000s||6.0||Y||n||Panasonic GH3|
|Sony RX100 V« »||2359||n||3.0||1229||tilting||n||1/2000s||24.0||Y||Y||Sony RX100 V|
|Sony RX100 III« »||1440||n||3.0||1229||tilting||n||1/2000s||10.0||Y||Y||Sony RX100 III|
|Sony RX100 II« »||-||n||3.0||1229||tilting||n||1/2000s||10.0||Y||Y||Sony RX100 II|
One difference between the cameras concerns the presence of an on-board flash. The ZS100 has one, while the E-M1 does not. While the built-in flash of the ZS100 is not very powerful, it can at times be useful as a fill-in light.
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 Olympus E-M1 and the Panasonic ZS100 both have 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 E-M1 and the ZS100 write their files to SDXC cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.
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 Olympus OM-D E-M1 and Panasonic Lumix DMC-ZS100 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Olympus E-M1»||Y||stereo||mono||Y||-||micro||2.0||Y||-||-||Olympus E-M1|
|Panasonic ZS100«||-||stereo||mono||-||-||micro||2.0||Y||-||-||Panasonic ZS100|
|Olympus E-M1 II« »||Y||stereo||mono||Y||Y||micro||3.0||Y||-||-||Olympus E-M1 II|
|Olympus PEN-F« »||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Olympus PEN-F|
|Olympus E-M5 II« »||Y||stereo||mono||Y||-||micro||2.0||Y||-||-||Olympus E-M5 II|
|Olympus E-PL7« »||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Olympus E-PL7|
|Olympus E-P5« »||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Olympus E-P5|
|Olympus E-M5« »||Y||stereo||mono||-||-||mini||2.0||-||-||-||Olympus E-M5|
|Olympus E-PL5« »||Y||stereo||mono||-||-||mini||2.0||-||-||-||Olympus E-PL5|
|Olympus E-PM2« »||Y||stereo||mono||-||-||mini||2.0||-||-||-||Olympus E-PM2|
|Panasonic ZS200« »||-||stereo||mono||-||-||micro||2.0||Y||-||Y||Panasonic ZS200|
|Panasonic LX10« »||-||stereo||mono||-||-||micro||2.0||Y||-||-||Panasonic LX10|
|Panasonic GH4« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Panasonic GH4|
|Panasonic GH3« »||Y||stereo||mono||Y||Y||mini||2.0||Y||-||-||Panasonic GH3|
|Sony RX100 V« »||-||stereo||mono||-||-||micro||2.0||Y||Y||-||Sony RX100 V|
|Sony RX100 III« »||-||stereo||mono||-||-||micro||2.0||Y||Y||-||Sony RX100 III|
|Sony RX100 II« »||Y||stereo||mono||-||-||micro||2.0||Y||Y||-||Sony RX100 II|
It is notable that the E-M1 has a hotshoe, while the ZS100 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.
Studio photographers will appreciate that the Olympus E-M1 (unlike the ZS100) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the E-M1 and the ZS100 have been discontinued, but can regularly be found used on eBay. The E-M1 was replaced by the Olympus E-M1 II, 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 Olympus and Panasonic websites.
So how do things add up? Is there a clear favorite between the Olympus E-M1 and the Panasonic ZS100? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.
Reasons to prefer the Olympus OM-D E-M1:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better low-light sensitivity: Requires less light for good images (0.4 stops ISO advantage).
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Better sound: Can connect to an external microphone for higher quality sound recording.
- More detailed viewfinder: Has higher resolution electronic viewfinder (2360k vs 1166k dots).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.74x vs 0.46x).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
- More flexible: Accepts interchangeable lenses, so that lens characteristics can be altered.
- Longer lasting: Can take more shots (350 versus 300) on a single battery charge.
- 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.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- More heavily discounted: Has been available for much longer (launched in September 2013).
Advantages of the Panasonic Lumix DMC-ZS100:
- More detail: Has more megapixels (20 vs 15.9MP), which boosts linear resolution by 14%.
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better video: Provides higher definition movie capture (4K/30p vs 1080/30p).
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- Ready to shoot: Has an integrated lens, whereas the E-M1 necessitates an extra lens.
- More compact: Is smaller (111x65mm vs 130x94mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight even though it has a lens built in (unlike the E-M1).
- Easier travel charging: Can be conveniently charged via its USB port.
- 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 modern: Reflects 2 years and 3 months of technical progress since the E-M1 launch.
If the count of individual advantages (bullet points above) is taken as a guide, the E-M1 is the clear winner of the match-up (14 : 10 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision 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 Olympus E-M1 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 remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the E-M1 or the ZS100. 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 (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.
|Olympus E-M1»||+ +||84/100||4.5/5||4.5/5||4.5/5||Sep 2013||1,399||-||Olympus E-M1|
|Panasonic ZS100«||+ +||82/100||4.5/5||4/5||4.5/5||Jan 2016||699||-||Panasonic ZS100|
|Olympus E-M1 II« »||+ +||85/100||4.5/5||5/5||4.5/5||Sep 2016||1,999||Olympus E-M1 II|
|Olympus PEN-F« »||-||82/100||4.5/5||4.5/5||5/5||Jan 2016||1,199||Olympus PEN-F|
|Olympus E-M5 II« »||+ +||81/100||5/5||4.5/5||5/5||Feb 2015||1,099||Olympus E-M5 II|
|Olympus E-PL7« »||+||-||5/5||4.5/5||4/5||Aug 2014||599||-||Olympus E-PL7|
|Olympus E-P5« »||+ +||78/100||4.5/5||4.5/5||5/5||May 2013||999||-||Olympus E-P5|
|Olympus E-M5« »||+ +||80/100||4.5/5||5/5||5/5||Feb 2012||1,299||-||Olympus E-M5|
|Olympus E-PL5« »||+ +||-||4.5/5||4.5/5||4.5/5||Sep 2012||599||-||Olympus E-PL5|
|Olympus E-PM2« »||-||77/100||5/5||4.5/5||4.5/5||Sep 2012||499||-||Olympus E-PM2|
|Panasonic ZS200« »||+ +||81/100||4.5/5||-||4.5/5||Feb 2018||799||Panasonic ZS200|
|Panasonic LX10« »||+ +||81/100||4/5||4.5/5||4.5/5||Sep 2016||699||Panasonic LX10|
|Panasonic GH4« »||+ +||85/100||5/5||5/5||5/5||Feb 2014||1,499||-||Panasonic GH4|
|Panasonic GH3« »||+ +||79/100||4.5/5||5/5||4.5/5||Sep 2012||1,299||-||Panasonic GH3|
|Sony RX100 V« »||+ +||83/100||4/5||5/5||4.5/5||Oct 2016||999||Sony RX100 V|
|Sony RX100 III« »||+ +||82/100||4.5/5||4.5/5||5/5||May 2014||799||-||Sony RX100 III|
|Sony RX100 II« »||+ +||79/100||4.5/5||5/5||4.5/5||Jun 2013||749||-||Sony RX100 II|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (-) not available.|
The review scores listed above should be treated with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. 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? If you would like to see a different side-by-side camera review, just use the search menu below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
- Canon 5D Mark III vs Olympus E-M1 II
- Canon SX620 vs Panasonic ZS100
- Canon T3i vs Olympus E-M1
- Nikon D4S vs Olympus E-M1
- Nikon Df vs Olympus E-M1
- Olympus E-M1 II vs Panasonic G90
- Olympus E-M1 II vs Sony A58
- Olympus E-M1 II vs Sony A77
- Olympus E-M1 II vs Sony RX10
- Olympus E-M1 vs Panasonic G7
- Olympus E-M1 vs Sony A7R III
- Olympus PEN-F vs Panasonic ZS100
Specifications: Olympus E-M1 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||Olympus E-M1||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 2013||January 2016|
|Launch Price||USD 1399||USD 699|
|Sensor Specs||Olympus E-M1||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||15.9 Megapixels||20 Megapixels|
|Image Resolution||4608 x 3456 pixels||5472 x 3648 pixels|
|Pixel Pitch||3.76 μm||2.41 μm|
|Pixel Density||7.08 MP/cm2||17.18 MP/cm2|
|Moiré control||no AA filter||Anti-Alias filter|
|Movie Capability||1080/30p Video||4K/30p Video|
|ISO Setting||100-25600 ISO||125-12800 ISO|
|ISO Boost||no Enhancement||80-25600 ISO|
|Image Processor||TruePIC VII||Venus|
|DXO Sensor Quality (score)||73||70|
|DXO Color Depth (bits)||23.0||22.8|
|DXO Dynamic Range (EV)||12.7||12.5|
|DXO Low Light (ISO)||757||559|
|Screen Specs||Olympus E-M1||Panasonic ZS100|
|Viewfinder Type||Electronic viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||2360k dots||1166k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0 inch||3.0 inch|
|LCD Resolution||1037k dots||1040k dots|
|LCD Attachment||Tilting screen||Fixed screen|
|Shooting Specs||Olympus E-M1||Panasonic ZS100|
|Autofocus System||On-Sensor Phase-detect||Contrast-detect AF|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/8000/s||1/2000/s|
|Continuous Shooting||10 shutter flaps/s||10 shutter flaps/s|
|Electronic Shutter||no E-Shutter||up to 1/16000s|
|Time-Lapse Photography||Intervalometer built-in||Intervalometer built-in|
|Image Stabilization||In-body stabilization||In-body stabilization|
|Fill Flash||no On-Board Flash||Build-in Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-I||UHS-I|
|Connectivity Specs||Olympus E-M1||Panasonic ZS100|
|External Flash||Hotshoe||no Hotshoe|
|Studio Flash||PC Sync socket||no PC Sync|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||micro HDMI||micro HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Wifi Support||Wifi built-in||Wifi built-in|
|Body Specs||Olympus E-M1||Panasonic ZS100|
|Environmental Sealing||Weathersealed body||Not weather sealed|
|Battery Life (CIPA)||350 shots per charge||300 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
130 x 94 x 63 mm
(5.1 x 3.7 x 2.5 in)
111 x 65 x 44 mm
(4.4 x 2.6 x 1.7 in)
|Camera Weight||497 g (17.5 oz)||312 g (11.0 oz)|
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