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Olympus E-M5 III vs Zeiss ZX1

The Olympus OM-D E-M5 Mark III and the Zeiss ZX1 are two enthusiast cameras that were officially introduced, respectively, in October 2019 and September 2018. The E-M5 III is a mirrorless interchangeable lens camera, while the ZX1 is a fixed lens compact. The cameras are based on a Four Thirds (E-M5 III) and a full frame (ZX1) sensor. The Olympus has a resolution of 20.2 megapixels, whereas the Zeiss provides 37.4 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Olympus E-M5 III
versus
Zeiss ZX1
Olympus E-M5 III   Zeiss ZX1
Mirrorless system camera Fixed lens compact camera
Micro Four Thirds lenses 35mm f/2.8
20.2 MP, Four Thirds Sensor 37.4 MP, Full Frame Sensor
4K/30p Video 4K/30p Video
ISO 200-25,600 ISO 80-51,200
Electronic viewfinder (2360k dots) Electronic viewfinder (6221k dots)
3.0 LCD, 1040k dots 4.3 LCD, 2765k dots
Swivel touchscreen Fixed touchscreen
10 shutter flaps per second 3 shutter flaps per second
In-body stabilizationno shake reduction
Weathersealed bodynot weather sealed
310 shots per battery charge250 shots per battery charge
125 x 85 x 50 mm, 414 g 142 x 93 x 46 mm, 800 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus OM-D E-M5 Mark III and the Zeiss ZX1? 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 side-by-side display below illustrates the physical size and weight of the Olympus E-M5 III and the Zeiss ZX1. 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.

The E-M5 III can be obtained in two different colors (black, silver), while the ZX1 is only available in black.

Size Olympus E-M5 III vs Zeiss ZX1
Compare E-M5 III versus ZX1 top
Comparison E-M5 III or ZX1 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Zeiss ZX1 is notably larger (24 percent) than the Olympus E-M5 III. It is worth mentioning in this context that the E-M5 III is splash and dust resistant, while the ZX1 does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the ZX1 has a lens built in, whereas the E-M5 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-M5 III and their specifications in the Micro Four Thirds Lens Catalog.

The power pack in the E-M5 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 want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

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Body Specifications
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Olympus E-M5 III 125 mm 85 mm 50 mm 414 g 310 Y Oct 2019 1,199 i
2.
 
Zeiss ZX1 142 mm 93 mm 46 mm 800 g 250 n Sep 2018 5,999 i
3.
 
Leica Q2 130 mm 80 mm 92 mm 718 g 370 Y Mar 2019 4,995 i
4.
 
Leica M10 139 mm 80 mm 39 mm 660 g 210 Y Jan 2017 6,595 i
5.
 
Leica Q Typ 116 130 mm 80 mm 93 mm 640 g 300 n Jun 2015 4,249 i
6.
 
Olympus E-M1 III 134 mm 91 mm 69 mm 580 g 420 Y Feb 2020 1,799 i
7.
 
Olympus E-M10 IV 122 mm 84 mm 49 mm 383 g 360 n Aug 2020 699 i
8.
 
Olympus E-M1X 144 mm 147 mm 75 mm 997 g 870 Y Jan 2019 2,999 i
9.
 
Olympus E-M1 II 134 mm 91 mm 67 mm 574 g 440 Y Sep 2016 1,999 i
10.
 
Olympus PEN-F 125 mm 72 mm 37 mm 427 g 330 n Jan 2016 1,199 i
11.
 
Olympus E-M5 II 124 mm 85 mm 45 mm 469 g 310 Y Feb 2015 1,099 i
12.
 
Olympus E-M1 130 mm 94 mm 63 mm 497 g 350 Y Sep 2013 1,399 i
13.
 
Olympus E-M5 122 mm 89 mm 43 mm 425 g 360 Y Feb 2012 1,299 i
14.
 
Panasonic G95 130 mm 94 mm 77 mm 536 g 290 Y Apr 2019 999 i
15.
 
Panasonic GX8 133 mm 78 mm 63 mm 487 g 330 Y Jul 2015 1,199 i
16.
 
Panasonic FZ1000 137 mm 99 mm 131 mm 831 g 360 n Jun 2014 899 i
17.
 
Sony RX1R II 113 mm 65 mm 72 mm 507 g 220 n Oct 2015 3,299 i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

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. 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. 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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its 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-M5 III features a Four Thirds sensor and the Zeiss ZX1 a full frame sensor. The sensor area in the ZX1 is 284 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 1.0. The sensor in the E-M5 III has a native 4:3 aspect ratio, while the one in the ZX1 offers a 3:2 aspect.

In terms of underlying technology, both cameras are build around CMOS sensors.

Olympus E-M5 III and Zeiss ZX1 sensor measures

With 37.4MP, the ZX1 offers a higher resolution than the E-M5 III (20.2MP), but the ZX1 nevertheless has larger individual pixels (pixel pitch of 4.81μm versus 3.34μm for the E-M5 III) due to its larger sensor. However, the E-M5 III is a somewhat more recent model (by 1 year) than the ZX1, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the E-M5 III has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Zeiss ZX1 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the ZX1 for good quality output (200 dots per inch) amounts to 37.4 x 25 inches or 95.1 x 63.4 cm, for very good quality (250 dpi) 30 x 20 inches or 76.1 x 50.7 cm, and for excellent quality (300 dpi) 25 x 16.6 inches or 63.4 x 42.3 cm. The corresponding values for the Olympus E-M5 III are 25.9 x 19.4 inches or 65.8 x 49.4 cm for good quality, 20.7 x 15.6 inches or 52.7 x 39.5 cm for very good quality, and 17.3 x 13 inches or 43.9 x 32.9 cm for excellent quality prints.

The E-M5 III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the ZX1, the E-M5 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-M5 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 Zeiss ZX1 are ISO 80 to ISO 51200 (no boost).

E-M5 III versus ZX1 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

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Sensor Characteristics
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Olympus E-M5 III Four Thirds 20.2 5184 38884K/30p...... ..
2.
 
Zeiss ZX1 Full Frame 37.4 7488 49924K/30p...... ..
3.
 
Leica Q2 Full Frame 46.7 8368 55844K/30p26.413.52491 96
4.
 
Leica M10 Full Frame 23.8 5952 3992none24.413.22133 86
5.
 
Leica Q Typ 116 Full Frame 24.0 6000 40001080/60p24.312.72221 85
6.
 
Olympus E-M1 III Four Thirds 20.2 5184 38884K/30p...... ..
7.
 
Olympus E-M10 IV Four Thirds 20.2 5184 38884K/30p...... ..
8.
 
Olympus E-M1X Four Thirds 20.2 5184 38884K/30p...... ..
9.
 
Olympus E-M1 II Four Thirds 20.2 5184 38884K/30p23.712.81312 80
10.
 
Olympus PEN-F Four Thirds 20.2 5184 38881080/60p23.112.4894 74
11.
 
Olympus E-M5 II Four Thirds 15.9 4608 34561080/60p23.012.5842 73
12.
 
Olympus E-M1 Four Thirds 15.9 4608 34561080/30p23.012.7757 73
13.
 
Olympus E-M5 Four Thirds 15.9 4608 34561080/60i22.812.3826 71
14.
 
Panasonic G95 Four Thirds 20.2 5184 38884K/30p...... ..
15.
 
Panasonic GX8 Four Thirds 20.2 5184 38884K/30p23.512.6806 75
16.
 
Panasonic FZ1000 1-inch 20.0 5472 36484K/30p22.111.7517 64
17.
 
Sony RX1R II Full Frame 42.2 7952 53041080/60p25.813.93204 97

Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the ZX1 provides a faster frame rate than the E-M5 III. It can shoot movie footage at 4K/30p, while the Olympus is limited to 4K/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The two cameras under review are similar with respect to both having an electronic viewfinder. However, the one in the ZX1 offers a substantially higher resolution than the one in the E-M5 III (6221k vs 2360k dots). The table below summarizes some of the other core capabilities of the Olympus E-M5 III and Zeiss ZX1 in connection with corresponding information for a sample of similar cameras.

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Core Features
    Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
(000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Olympus E-M5 III2360 n 3.0 1040 swivel Y 1/8000s 10.0 n Y
2.
 
Zeiss ZX16221 n 4.3 2765 fixed Y 1/1000s 3.0 n n
3.
 
Leica Q23680 n 3.0 1040 fixed Y 1/2000s 20.0 n Y
4.
 
Leica M10optical n 3.0 1037 fixed n 1/4000s 5.0 n n
5.
 
Leica Q Typ 1163680 n 3.0 1040 fixed Y 1/2000s 10.0 n Y
6.
 
Olympus E-M1 III2360 n 3.0 1037 swivel Y 1/8000s 18.0 n Y
7.
 
Olympus E-M10 IV2360 n 3.0 1040 tilting Y 1/4000s 15.0 Y Y
8.
 
Olympus E-M1X2360 n 3.0 1037 swivel Y 1/8000s 18.0 n Y
9.
 
Olympus E-M1 II2360 n 3.0 1037 swivel Y 1/8000s 18.0 n Y
10.
 
Olympus PEN-F2360 n 3.0 1037 swivel Y 1/8000s 10.0 n Y
11.
 
Olympus E-M5 II2360 n 3.0 1037 swivel Y 1/8000s 10.0 n Y
12.
 
Olympus E-M12360 n 3.0 1037 tilting Y 1/8000s 10.0 n Y
13.
 
Olympus E-M51440 n 3.0 610 tilting Y 1/4000s 9.0 n Y
14.
 
Panasonic G952360 n 3.0 1240 swivel Y 1/4000s 9.0 Y Y
15.
 
Panasonic GX82360 n 3.0 1040 swivel Y 1/8000s 10.0 n Y
16.
 
Panasonic FZ10002359 n 3.0 921 swivel n 1/4000s 12.0 Y Y
17.
 
Sony RX1R II2360 n 3.0 1229 tilting n 1/4000s 5.0 n n
The E-M5 III 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 ZX1 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, both cameras under consideration feature an 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-M5 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.

The E-M5 III writes its imaging data to SDXC cards, while the ZX1 uses an internal SSD.

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-M5 Mark III and Zeiss ZX1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
    Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Olympus E-M5 IIIYstereomonoY-micro2.0Y-Y
2.
 
Zeiss ZX1Ystereomono---3.1YYY
3.
 
Leica Q2Ystereomono----Y-Y
4.
 
Leica M10Y------Y--
5.
 
Leica Q Typ 116Ystereomono--micro2.0YY-
6.
 
Olympus E-M1 IIIYstereomonoYYmicro3.1Y-Y
7.
 
Olympus E-M10 IVYstereomono--micro2.0Y-Y
8.
 
Olympus E-M1XYstereomonoYYmicro3.0Y-Y
9.
 
Olympus E-M1 IIYstereomonoYYmicro3.0Y--
10.
 
Olympus PEN-FYstereomono--micro2.0Y--
11.
 
Olympus E-M5 IIYstereomonoY-micro2.0Y--
12.
 
Olympus E-M1YstereomonoY-micro2.0Y--
13.
 
Olympus E-M5Ystereomono--mini2.0---
14.
 
Panasonic G95YstereomonoYYmicro2.0Y-Y
15.
 
Panasonic GX8YstereomonoY-micro2.0YY-
16.
 
Panasonic FZ1000YstereomonoY-micro2.0YY-
17.
 
Sony RX1R IIYstereomonoY-micro2.0YY-

It is notable that the E-M5 III has a microphone port, which is missing on the ZX1. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.

Both the E-M5 III and the ZX1 are recent models that are part of the current product line-up. The E-M5 III replaced the earlier Olympus E-M5 II, while the ZX1 does not have a direct predecessor. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Olympus and Zeiss websites.

Review summary

So what conclusions can be drawn? Is the Olympus E-M5 III better than the Zeiss ZX1 or vice versa? Below is a summary of the relative strengths of each of the two contestants.

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Reasons to prefer the Olympus OM-D E-M5 Mark III:

  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • 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 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 (1/8000s vs 1/1000s) to freeze action.
  • Faster burst: Shoots at higher frequency (10 vs 3 flaps/sec) to capture the decisive moment.
  • 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.
  • More compact: Is smaller (125x85mm vs 142x93mm) and thus needs less room in the bag.
  • Longer lasting: Can take more shots (310 versus 250) on a single battery charge.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • Sharper images: Has hand-shake reducing image stabilization built-in.

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Advantages of the Zeiss ZX1:

  • More detail: Has more megapixels (37.4 vs 20.2MP), which boosts linear resolution by 39%.
  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
  • Richer colors: The pixel size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
  • Better video: Provides higher movie framerates (4K/30p versus 4K/30p).
  • More detailed viewfinder: Has higher resolution electronic viewfinder (6221k vs 2360k dots).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.74x vs 0.68x).
  • Larger screen: Has a bigger rear LCD (4.3" vs 3.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (2765k vs 1040k dots).
  • Ready to shoot: Has an integrated lens, whereas the E-M5 III necessitates an extra lens.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • More prestigious: Has the Zeiss luxury appeal, which ensures a high resale value.

If the count of individual advantages (bullet points above) is taken as a guide, the match-up finishes in a tie (15 points each). 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 sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

E-M5 III 15:15 ZX1

How about other alternatives? Do the specifications of the Olympus E-M5 III and the Zeiss ZX1 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best Prime Lens Compact Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it says little about, for example, the shooting experience and imaging performance of the E-M5 III and the ZX1 in practical situations. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.

Expert reviews

This is why expert reviews are important. The adjacent summary-table relays the overall verdicts of several of the most popular camera 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.

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Expert Camera Reviews
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Olympus E-M5 III5/5+82/1004.5/54.5/5 Oct 2019 1,199 i
2.
 
Zeiss ZX1.......... Sep 2018 5,999 i
3.
 
Leica Q2....84/1004.5/54/5 Mar 2019 4,995 i
4.
 
Leica M104.5/5....4/54.5/5 Jan 2017 6,595 i
5.
 
Leica Q Typ 1165/5..80/1004.5/54.5/5 Jun 2015 4,249 i
6.
 
Olympus E-M1 III5/5..83/1004.5/54/5 Feb 2020 1,799 i
7.
 
Olympus E-M10 IV4.5/5..81/1004.5/54.5/5 Aug 2020 699 i
8.
 
Olympus E-M1X4.5/5o85/1004.5/5.. Jan 2019 2,999 i
9.
 
Olympus E-M1 II5/5+ +85/1004.5/54.5/5 Sep 2016 1,999 i
10.
 
Olympus PEN-F....82/1004.5/55/5 Jan 2016 1,199 i
11.
 
Olympus E-M5 II5/5+ +81/1005/55/5 Feb 2015 1,099 i
12.
 
Olympus E-M15/5+ +84/1004.5/54.5/5 Sep 2013 1,399 i
13.
 
Olympus E-M54/5+ +80/1004.5/55/5 Feb 2012 1,299 i
14.
 
Panasonic G954.5/5+83/1004.5/54.5/5 Apr 2019 999 i
15.
 
Panasonic GX85/5+82/1004.5/54.5/5 Jul 2015 1,199 i
16.
 
Panasonic FZ10004/5+ +82/1004.5/54.5/5 Jun 2014 899 i
17.
 
Sony RX1R II5/5..82/100..4.5/5 Oct 2015 3,299 i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, 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 rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

Olympus E-M5 III:
Check Amazon price
Zeiss ZX1:
Check Amazon price

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 make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Olympus E-M5 III vs Zeiss ZX1

    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 Specifications
    Camera Model Olympus E-M5 III Zeiss ZX1
    Camera Type Mirrorless system camera Fixed lens compact camera
    Camera Lens Micro Four Thirds lenses 35mm f/2.8
    Launch Date October 2019 September 2018
    Launch Price USD 1,199 USD 5,999
    Sensor Specs Olympus E-M5 III Zeiss ZX1
    Sensor Technology CMOS CMOS
    Sensor Format Four Thirds Sensor Full Frame Sensor
    Sensor Size 17.3 x 13.0 mm 36.0 x 24.0 mm
    Sensor Area 224.9 mm2 864 mm2
    Sensor Diagonal 21.6 mm 43.3 mm
    Crop Factor 2.0x 1.0x
    Sensor Resolution 20.2 Megapixels 37.4 Megapixels
    Image Resolution 5184 x 3888 pixels 7488 x 4992 pixels
    Pixel Pitch 3.34 μm 4.81 μm
    Pixel Density 8.96 MP/cm2 4.33 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 4K/30p Video 4K/30p Video
    ISO Setting 200 - 25,600 ISO 80 - 51,200 ISO
    ISO Boost 64 - 25,600 ISO no Enhancement
    Screen Specs Olympus E-M5 III Zeiss ZX1
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.68x 0.74x
    Viewfinder Resolution 2360k dots 6221k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 4.3inch
    LCD Resolution 1040k dots 2765k dots
    LCD Attachment Swivel screen Fixed screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Olympus E-M5 III Zeiss ZX1
    Focus System On-Sensor Phase-detect Contrast-detect AF
    Manual Focusing AidFocus Peakingno Peaking Feature
    Continuous Shooting 10 shutter flaps/s 3 shutter flaps/s
    Electronic Shutterup to 1/32000sup to 1/8000s
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationIn-body stabilizationno handshake reduction
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium SDXC cards Internal SSD
    Second Storage Option Single card slot Single SSD
    Connectivity Specs Olympus E-M5 III Zeiss ZX1
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 3.1
    HDMI Port micro HDMI no HDMI
    Microphone Port External MIC port no MIC socket
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Bluetooth Support Bluetooth built-in Bluetooth built-in
    Body Specs Olympus E-M5 III Zeiss ZX1
    Environmental SealingWeathersealed bodynot weather sealed
    Battery Type BLS-50 DD-PS1A
    Battery Life (CIPA)310 shots per charge250 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 125 x 85 x 50 mm
    (4.9 x 3.3 x 2.0 in)
    142 x 93 x 46 mm
    (5.6 x 3.7 x 1.8 in)
    Camera Weight 414 g (14.6 oz) 800 g (28.2 oz)

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