Olympus E-M1 III vs Panasonic FZ100
The Olympus OM-D E-M1 Mark III and the Panasonic Lumix DMC-FZ100 are two digital cameras that were announced, respectively, in February 2020 and July 2010. The E-M1 III is a mirrorless interchangeable lens camera, while the FZ100 is a fixed lens compact. The cameras are based on a Four Thirds (E-M1 III) and a 1/2.3-inch (FZ100) sensor. The Olympus has a resolution of 20.2 megapixels, whereas the Panasonic provides 14 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.

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Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus OM-D E-M1 Mark III and the Panasonic Lumix DMC-FZ100? 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.
Body comparison
The physical size and weight of the Olympus E-M1 III and the Panasonic FZ100 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.



If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic FZ100 is notably smaller (17 percent) than the Olympus E-M1 III. It is worth mentioning in this context that the E-M1 III is splash and dust resistant, while the FZ100 does not feature any corresponding weather-sealing.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the FZ100 has a lens built in, whereas the E-M1 III 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 III and their specifications in the Micro Four Thirds Lens Catalog.
Concerning battery life, the E-M1 III gets 420 shots out of its Olympus BLH-1 battery, while the FZ100 can take 410 images on a single charge of its Panasonic DMW-BMB9 power pack. The power pack in the E-M1 III can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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.

| Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price |
Street Price |
||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Olympus E-M1 III | 134 mm | 91 mm | 69 mm | 580 g | 420 | Y | Feb 2020 | US$ 1 799 | ebay.com | |
| 2. | Panasonic FZ100 | 124 mm | 82 mm | 92 mm | 540 g | 410 | n | Jul 2010 | US$ 499 | ebay.com | |
| 3. | Canon SX30 | 123 mm | 92 mm | 108 mm | 601 g | 370 | n | Sep 2010 | US$ 429 | ebay.com | |
| 4. | Canon SX40 | 123 mm | 92 mm | 108 mm | 600 g | 380 | n | Sep 2011 | US$ 429 | ebay.com | |
| 5. | Nikon Z6 II | 134 mm | 101 mm | 70 mm | 705 g | 410 | Y | Oct 2020 | US$ 1 999 | amazon.com | |
| 6. | Olympus E-M1 II | 134 mm | 91 mm | 67 mm | 574 g | 440 | Y | Sep 2016 | US$ 1 999 | ebay.com | |
| 7. | Olympus E-M1X | 144 mm | 147 mm | 75 mm | 997 g | 870 | Y | Jan 2019 | US$ 2 999 | ebay.com | |
| 8. | Olympus E-M5 III | 125 mm | 85 mm | 50 mm | 414 g | 310 | Y | Oct 2019 | US$ 1 199 | ebay.com | |
| 9. | OM System OM-1 | 135 mm | 92 mm | 73 mm | 599 g | 520 | Y | Feb 2022 | US$ 2 199 | ebay.com | |
| 10. | OM System OM-3 | 139 mm | 89 mm | 46 mm | 496 g | 590 | Y | Feb 2025 | US$ 1 999 | amazon.com | |
| 11. | Panasonic FZ150 | 124 mm | 82 mm | 92 mm | 528 g | 410 | n | Aug 2011 | US$ 499 | ebay.com | |
| 12. | Panasonic FZ200 | 125 mm | 87 mm | 110 mm | 588 g | 540 | n | Jul 2012 | US$ 599 | ebay.com | |
| 13. | Panasonic G3 | 115 mm | 84 mm | 47 mm | 336 g | 270 | n | May 2011 | US$ 599 | ebay.com | |
| 14. | Panasonic G9 | 137 mm | 97 mm | 92 mm | 658 g | 400 | Y | Nov 2017 | US$ 1 699 | ebay.com | |
| 15. | Panasonic G90 | 130 mm | 94 mm | 77 mm | 536 g | 290 | Y | Apr 2019 | US$ 999 | ebay.com | |
| 16. | Panasonic GH5 II | 139 mm | 98 mm | 87 mm | 727 g | 400 | Y | May 2021 | US$ 1 699 | amazon.com | |
| 17. | Sony A7C | 124 mm | 71 mm | 60 mm | 509 g | 740 | Y | Sep 2020 | US$ 1 799 | amazon.com | |
| Note: 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. The FZ100 was launched at a lower price than the E-M1 III, 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.
Sensor comparison
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 Olympus E-M1 III features a Four Thirds sensor and the Panasonic FZ100 a 1/2.3-inch sensor. The sensor area in the FZ100 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.

With 20.2MP, the E-M1 III offers a higher resolution than the FZ100 (14MP), but the E-M1 III nevertheless has larger individual pixels (pixel pitch of 3.34μm versus 1.41μm for the FZ100) due to its larger sensor. Moreover, the E-M1 III is a much more recent model (by 9 years and 6 months) than the FZ100, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. 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.
The resolution advantage of the Olympus E-M1 III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the E-M1 III 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 FZ100 are 21.6 x 16.2 inches or 54.9 x 41.1 cm for good quality, 17.3 x 13 inches or 43.9 x 32.9 cm for very good quality, and 14.4 x 10.8 inches or 36.6 x 27.4 cm for excellent quality prints.
The E-M1 III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
Unlike the FZ100, the E-M1 III has the capacity to capture high quality composite images (80MP) 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 Olympus OM-D E-M1 Mark III has a native sensitivity range from ISO 200 to ISO 25600, which can be extended to ISO 64-25600. The corresponding ISO settings for the Panasonic Lumix DMC-FZ100 are ISO 100 to ISO 1600, with the possibility to increase the ISO range to 100-6400.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

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"). The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

| Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Olympus E-M1 III | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.3 | 13.1 | 1356 | 76 | |
| 2. | Panasonic FZ100 | 1/2.3 | 14.0 | 4320 | 3240 | 1080/60i | 19.4 | 10.7 | 306 | 39 | |
| 3. | Canon SX30 | 1/2.3 | 14.0 | 4320 | 3240 | 720/30p | 19.4 | 10.7 | 320 | 39 | |
| 4. | Canon SX40 | 1/2.3 | 12.0 | 4000 | 3000 | 1080/24p | 19.6 | 10.9 | 409 | 41 | |
| 5. | Nikon Z6 II | Full Frame | 24.3 | 6048 | 4024 | 4K/60p | 25.0 | 14.4 | 3303 | 94 | |
| 6. | Olympus E-M1 II | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.7 | 12.8 | 1312 | 80 | |
| 7. | Olympus E-M1X | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.2 | 13.0 | 1254 | 75 | |
| 8. | Olympus E-M5 III | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.3 | 13.1 | 1324 | 76 | |
| 9. | OM System OM-1 | Four Thirds | 20.2 | 5184 | 3888 | 4K/60p | 23.4 | 13.4 | 1553 | 77 | |
| 10. | OM System OM-3 | Four Thirds | 20.2 | 5184 | 3888 | 4K/60p | 23.4 | 13.7 | 1852 | 78 | |
| 11. | Panasonic FZ150 | 1/2.3 | 12.0 | 4000 | 3000 | 1080/60p | 19.4 | 10.9 | 132 | 40 | |
| 12. | Panasonic FZ200 | 1/2.3 | 12.0 | 4000 | 3000 | 1080/60p | 19.1 | 10.8 | 114 | 37 | |
| 13. | Panasonic G3 | Four Thirds | 15.8 | 4592 | 3448 | 1080/60i | 21.0 | 10.6 | 667 | 56 | |
| 14. | Panasonic G9 | Four Thirds | 20.2 | 5184 | 3888 | 4K/60p | 23.1 | 12.8 | 1138 | 74 | |
| 15. | Panasonic G90 | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.2 | 13.0 | 1273 | 75 | |
| 16. | Panasonic GH5 II | Four Thirds | 20.2 | 5184 | 3888 | 4K/60p | 23.7 | 13.1 | 1136 | 79 | |
| 17. | Sony A7C | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 25.0 | 14.7 | 3407 | 95 | |
| Note: DXO values in italics represent estimates based on sensor size and age. | |||||||||||
Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the E-M1 III provides a higher video resolution than the FZ100. It can shoot video footage at 4K/30p, while the Panasonic is limited to 1080/60i.
Feature comparison
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 E-M1 III offers a substantially higher resolution than the one in the FZ100 (2360k vs 202k dots). The following table reports on some other key feature differences and similarities of the Olympus E-M1 III, the Panasonic FZ100, and comparable cameras.

| Camera Model |
Viewfinder (Type or 000 dots) |
Control Panel (yes/no) |
LCD Specifications (inch/000 dots) |
LCD Attach- ment |
Touch Screen (yes/no) |
Max Shutter Speed * |
Max Shutter Flaps * |
Built-in Flash (yes/no) |
Built-in Image Stab |
||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Olympus E-M1 III | 2360 | n | 3.0 / 1037 | swivel | Y | 1/8000s | 18.0/s | n | Y | |
| 2. | Panasonic FZ100 | 202 | n | 3.0 / 460 | swivel | n | 1/2000s | 11.0/s | Y | Y | |
| 3. | Canon SX30 | 202 | n | 2.7 / 230 | swivel | n | 1/3200s | 0.6/s | Y | Y | |
| 4. | Canon SX40 | 202 | n | 2.7 / 230 | swivel | n | 1/3200s | 10.3/s | Y | Y | |
| 5. | Nikon Z6 II | 3690 | Y | 3.2 / 2100 | tilting | Y | 1/8000s | 14.0/s | n | Y | |
| 6. | Olympus E-M1 II | 2360 | n | 3.0 / 1037 | swivel | Y | 1/8000s | 18.0/s | n | Y | |
| 7. | Olympus E-M1X | 2360 | n | 3.0 / 1037 | swivel | Y | 1/8000s | 18.0/s | n | Y | |
| 8. | Olympus E-M5 III | 2360 | n | 3.0 / 1040 | swivel | Y | 1/8000s | 10.0/s | n | Y | |
| 9. | OM System OM-1 | 5760 | n | 3.0 / 1640 | swivel | Y | 1/8000s | 10.0/s | n | Y | |
| 10. | OM System OM-3 | 2360 | n | 3.0 / 1640 | swivel | Y | 1/8000s | 6.0/s | n | Y | |
| 11. | Panasonic FZ150 | 202 | n | 3.0 / 460 | swivel | n | 1/2000s | 12.0/s | Y | Y | |
| 12. | Panasonic FZ200 | 1312 | n | 3.0 / 460 | swivel | n | 1/4000s | 12.0/s | Y | Y | |
| 13. | Panasonic G3 | 1440 | n | 3.0 / 460 | swivel | Y | 1/4000s | 4.0/s | Y | n | |
| 14. | Panasonic G9 | 3680 | Y | 3.0 / 1040 | swivel | Y | 1/8000s | 20.0/s | n | Y | |
| 15. | Panasonic G90 | 2360 | n | 3.0 / 1240 | swivel | Y | 1/4000s | 9.0/s | Y | Y | |
| 16. | Panasonic GH5 II | 3680 | n | 3.0 / 1840 | swivel | Y | 1/8000s | 12.0/s | n | Y | |
| 17. | Sony A7C | 2360 | n | 3.0 / 922 | swivel | Y | 1/4000s | 10.0/s | n | Y | |
| Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one. | |||||||||||
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The E-M1 III has a touchscreen, while the FZ100 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.
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, the E-M1 III 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 III 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 E-M1 III and the FZ100 write their files to SDXC cards. The E-M1 III features dual card slots, which can be very useful in case a memory card fails. In contrast, the FZ100 only has one slot. The E-M1 III supports UHS-II cards on its first slot and UHS-I on its second one, while the FZ100 cannot take advantage of Ultra High Speed SD cards.
Connectivity comparison
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 Mark III and Panasonic Lumix DMC-FZ100 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

| Camera Model |
Hotshoe Port |
Internal Mic / Speaker |
Microphone Port |
Headphone Port |
HDMI Port |
USB Port |
WiFi Support |
NFC Support |
Bluetooth Support |
||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Olympus E-M1 III | Y | stereo / mono | Y | Y | micro | 3.1 | Y | - | Y | |
| 2. | Panasonic FZ100 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
| 3. | Canon SX30 | Y | stereo / mono | - | - | YES | 2.0 | - | - | - | |
| 4. | Canon SX40 | Y | stereo / mono | - | - | YES | 2.0 | - | - | - | |
| 5. | Nikon Z6 II | Y | stereo / mono | Y | Y | micro | 3.2 | Y | - | Y | |
| 6. | Olympus E-M1 II | Y | stereo / mono | Y | Y | micro | 3.0 | Y | - | - | |
| 7. | Olympus E-M1X | Y | stereo / mono | Y | Y | micro | 3.0 | Y | - | Y | |
| 8. | Olympus E-M5 III | Y | stereo / mono | Y | - | micro | 2.0 | Y | - | Y | |
| 9. | OM System OM-1 | Y | stereo / mono | Y | Y | micro | 3.0 | Y | - | Y | |
| 10. | OM System OM-3 | Y | stereo / mono | Y | Y | micro | 3.0 | Y | - | Y | |
| 11. | Panasonic FZ150 | Y | stereo / - | - | - | mini | 2.0 | - | - | - | |
| 12. | Panasonic FZ200 | Y | stereo / mono | Y | - | mini | 2.0 | - | - | - | |
| 13. | Panasonic G3 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
| 14. | Panasonic G9 | Y | stereo / mono | Y | Y | full | 3.0 | Y | - | Y | |
| 15. | Panasonic G90 | Y | stereo / mono | Y | Y | micro | 2.0 | Y | - | Y | |
| 16. | Panasonic GH5 II | Y | stereo / mono | Y | Y | full | 3.2 | Y | - | Y | |
| 17. | Sony A7C | Y | stereo / mono | Y | Y | micro | 3.2 | Y | Y | Y |
It is notable that the E-M1 III has a microphone port, which is missing on the FZ100. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.
Studio photographers will appreciate that the Olympus E-M1 III (unlike the FZ100) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the E-M1 III and the FZ100 have been discontinued, but can regularly be found used on ebay. The FZ100 was replaced by the Panasonic FZ150, while the E-M1 III was followed by the OM System OM-1. Further information on the features and operation of the E-M1 III and FZ100 can be found, respectively, in the Olympus E-M1 III Manual (free pdf) or the online Panasonic FZ100 Manual.
Review summary
So what is the bottom line? Is there a clear favorite between the Olympus E-M1 III and the Panasonic FZ100? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

Reasons to prefer the Olympus OM-D E-M1 Mark III:
- More detail: Offers more megapixels (20.2 vs 14MP) with a 20% higher linear resolution.
- 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 definition movie capture (4K/30p vs 1080/60i).
- 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.
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- More detailed viewfinder: Has higher resolution electronic viewfinder (2360k vs 202k dots).
- More detailed LCD: Has a higher resolution rear screen (1037k vs 460k dots).
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
- Faster burst: Shoots at higher frequency (18 vs 11 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.
- More flexible: Accepts interchangeable lenses, so that lens characteristics can be altered.
- Easier travel charging: Can be conveniently charged via its USB port.
- Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
- Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- 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 Ultra High Speed (UHS-II and UHS-I) SDXC cards.
- More modern: Reflects 9 years and 6 months of technical progress since the FZ100 launch.

Arguments in favor of the Panasonic Lumix DMC-FZ100:
- Ready to shoot: Has an integrated lens, whereas the E-M1 III necessitates an extra lens.
- More compact: Is smaller (124x82mm vs 134x91mm) 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 III).
- 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 around for much longer (launched in July 2010).
If the count of individual advantages (bullet points above) is taken as a guide, the E-M1 III is the clear winner of the match-up (27 : 6 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 III and the Panasonic FZ100 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 E-M1 III and the FZ100 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.
Expert reviews
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], digitalcameraworld [DCW], 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.

| Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price |
Street Price |
||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Olympus E-M1 III | 5/5 | .. | 5/5 | 83/100 | 4.5/5 | 4/5 | Feb 2020 | US$ 1 799 | ebay.com | |
| 2. | Panasonic FZ100 | .. | + | .. | .. | 4.5/5 | 4.5/5 | Jul 2010 | US$ 499 | ebay.com | |
| 3. | Canon SX30 | 3/5 | + + | .. | .. | 3.5/5 | 4/5 | Sep 2010 | US$ 429 | ebay.com | |
| 4. | Canon SX40 | .. | + | .. | .. | 4.5/5 | 4/5 | Sep 2011 | US$ 429 | ebay.com | |
| 5. | Nikon Z6 II | 4.5/5 | .. | 4/5 | 89/100 | 4.5/5 | 4.5/5 | Oct 2020 | US$ 1 999 | amazon.com | |
| 6. | Olympus E-M1 II | 5/5 | + + | 5/5 | 85/100 | 4.5/5 | 4.5/5 | Sep 2016 | US$ 1 999 | ebay.com | |
| 7. | Olympus E-M1X | 4.5/5 | o | 5/5 | 85/100 | 4.5/5 | .. | Jan 2019 | US$ 2 999 | ebay.com | |
| 8. | Olympus E-M5 III | 5/5 | + | 5/5 | 82/100 | 4.5/5 | 4.5/5 | Oct 2019 | US$ 1 199 | ebay.com | |
| 9. | OM System OM-1 | 5/5 | .. | .. | 87/100 | 5/5 | 4.5/5 | Feb 2022 | US$ 2 199 | ebay.com | |
| 10. | OM System OM-3 | .. | .. | .. | 86/100 | .. | .. | Feb 2025 | US$ 1 999 | amazon.com | |
| 11. | Panasonic FZ150 | 3/5 | + + | .. | 76/100 | 4/5 | 4.5/5 | Aug 2011 | US$ 499 | ebay.com | |
| 12. | Panasonic FZ200 | 3/5 | + + | .. | 80/100 | 4.5/5 | 4.5/5 | Jul 2012 | US$ 599 | ebay.com | |
| 13. | Panasonic G3 | 3/5 | + + | .. | 75/100 | 4.5/5 | 5/5 | May 2011 | US$ 599 | ebay.com | |
| 14. | Panasonic G9 | .. | + + | 5/5 | 85/100 | 5/5 | 5/5 | Nov 2017 | US$ 1 699 | ebay.com | |
| 15. | Panasonic G90 | 4.5/5 | + | 4.5/5 | 83/100 | 4.5/5 | 4.5/5 | Apr 2019 | US$ 999 | ebay.com | |
| 16. | Panasonic GH5 II | 4.5/5 | .. | 4.5/5 | 85/100 | 4.5/5 | 5/5 | May 2021 | US$ 1 699 | amazon.com | |
| 17. | Sony A7C | 3.5/5 | .. | 3.5/5 | 86/100 | 4/5 | 4/5 | Sep 2020 | US$ 1 799 | amazon.com | |
| Note: (+ +) 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.

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Check FZ100 offers at
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Other camera comparisons
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Specifications: Olympus E-M1 III vs Panasonic FZ100
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 III | Panasonic FZ100 |
|---|---|---|
| Camera Type | Mirrorless system camera | Fixed lens compact camera |
| Camera Lens | Micro Four Thirds lenses | 25-600mm f/2.8-5.2 |
| Launch Date | February 2020 | July 2010 |
| Launch Price | USD 1,799 | USD 499 |
| Sensor Specs | Olympus E-M1 III | Panasonic FZ100 |
| Sensor Technology | CMOS | CMOS |
| 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 |
| Crop Factor | 2.0x | 5.6x |
| Sensor Resolution | 20.2 Megapixels | 14 Megapixels |
| Image Resolution | 5184 x 3888 pixels | 4320 x 3240 pixels |
| Pixel Pitch | 3.34 μm | 1.41 μm |
| Pixel Density | 8.96 MP/cm2 | 49.86 MP/cm2 |
| Moiré control | no AA filter | no AA filter |
| Movie Capability | 4K/30p Video | 1080/60i Video |
| ISO Setting | 200 - 25,600 ISO | 100 - 1,600 ISO |
| ISO Boost | 64 - 25,600 ISO | 100 - 6,400 ISO |
| Image Processor | TruePic IX | Venus FHD |
| Screen Specs | Olympus E-M1 III | Panasonic FZ100 |
| Viewfinder Type | Electronic viewfinder | Electronic viewfinder |
| Viewfinder Field of View | 100% | 100% |
| Viewfinder Magnification | 0.74x | |
| Viewfinder Resolution | 2360k dots | 202k dots |
| LCD Framing | Live View | Live View |
| Rear LCD Size | 3.0inch | 3.0inch |
| LCD Resolution | 1037k dots | 460k dots |
| LCD Attachment | Swivel screen | Swivel screen |
| Touch Input | Touchscreen | no Touchscreen |
| Shooting Specs | Olympus E-M1 III | Panasonic FZ100 |
| Focus System | On-Sensor Phase-detect | Contrast-detect AF |
| Manual Focusing Aid | Focus Peaking | no Peaking Feature |
| Continuous Shooting | 18 shutter flaps/s | 11 shutter flaps/s |
| Electronic Shutter | up to 1/32000s | no E-Shutter |
| Time-Lapse Photography | Intervalometer built-in | no Intervalometer |
| Image Stabilization | In-body stabilization | Lens-based stabilization |
| Fill Flash | no On-Board Flash | Built-in Flash |
| Storage Medium | SDXC cards | SDXC cards |
| Single or Dual Card Slots | Dual card slots | Single card slot |
| UHS card support | Single UHS-II | no |
| Connectivity Specs | Olympus E-M1 III | Panasonic FZ100 |
| External Flash | Hotshoe | Hotshoe |
| Studio Flash | PC Sync socket | no PC Sync |
| USB Connector | USB 3.1 | USB 2.0 |
| HDMI Port | micro HDMI | mini HDMI |
| Microphone Port | External MIC port | no MIC socket |
| Headphone Socket | Headphone port | no Headphone port |
| Wifi Support | Wifi built-in | no Wifi |
| Bluetooth Support | Bluetooth built-in | no Bluetooth |
| Body Specs | Olympus E-M1 III | Panasonic FZ100 |
| Environmental Sealing | Weathersealed body | not weather sealed |
| Battery Type | Olympus BLH-1 | Panasonic DMW-BMB9 |
| Battery Life (CIPA) | 420 shots per charge | 410 shots per charge |
| In-Camera Charging | USB charging | no USB charging |
| Body Dimensions |
134 x 91 x 69 mm (5.3 x 3.6 x 2.7 in) |
124 x 82 x 92 mm (4.9 x 3.2 x 3.6 in) |
| Camera Weight | 580 g (20.5 oz) | 540 g (19.0 oz) |

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