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Nikon Z7 II vs Olympus E-M5 II

The Nikon Z7 II and the Olympus OM-D E-M5 Mark II are two enthusiast cameras that were revealed to the public, respectively, in October 2020 and February 2015. Both the Z7 II and the E-M5 II are mirrorless interchangeable lens cameras that are based on a full frame (Z7 II) and a Four Thirds (E-M5 II) sensor. The Nikon has a resolution of 45.4 megapixels, whereas the Olympus provides 15.9 MP.

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

Headline Specifications
Nikon Z7 II versus Olympus E-M5 II
Nikon Z7 II Olympus E-M5 II
Mirrorless system camera Mirrorless system camera
Nikon Z mount lenses Micro Four Thirds lenses
45.4 MP, Full Frame Sensor 15.9 MP, Four Thirds Sensor
4K/60p Video 1080/60p Video
ISO 64-25,600 (32 - 102,400) ISO 200-25,600
Electronic viewfinder (3690k dots) Electronic viewfinder (2360k dots)
3.2 LCD, 2100k dots 3.0 LCD, 1037k dots
Tilting touchscreen Swivel touchscreen
10 shutter flaps per second 10 shutter flaps per second
In-body stabilizationIn-body stabilization
Weathersealed bodyWeathersealed body
420 shots per battery charge310 shots per battery charge
134 x 101 x 70 mm, 705 g 124 x 85 x 45 mm, 469 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon Z7 II and the Olympus OM-D E-M5 Mark II? 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 Nikon Z7 II and the Olympus E-M5 II. 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 dimensions are rounded to the nearest millimeter.

The E-M5 II can be obtained in two different colors (black, silver), while the Z7 II is only available in black.

Size Nikon Z7 II vs Olympus E-M5 II
Compare Z7 II versus E-M5 II top
Comparison Z7 II or E-M5 II rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-M5 II is notably smaller (22 percent) than the Nikon Z7 II. Moreover, the E-M5 II is markedly lighter (33 percent) than the Z7 II. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the Z7 II gets 420 shots out of its EN-EL15c battery, while the E-M5 II can take 310 images on a single charge of its BLN-1 power pack. The power pack in the Z7 II 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.

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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.
 
Nikon Z7 II 134 mm 101 mm 70 mm 705 g 420 Y Oct 2020 2,999 i
2.
 
Olympus E-M5 II 124 mm 85 mm 45 mm 469 g 310 Y Feb 2015 1,099i
3.
 
Canon R5 138 mm 98 mm 88 mm 738 g 320 Y Jul 2020 3,899 i
4.
 
Canon R6 138 mm 98 mm 88 mm 680 g 360 Y Jul 2020 2,499 i
5.
 
Nikon Z5 134 mm 101 mm 67 mm 675 g 470 Y Jul 2020 1,399 i
6.
 
Nikon Z6 II 134 mm 101 mm 70 mm 705 g 410 Y Oct 2020 1,999 i
7.
 
Nikon Z6 134 mm 101 mm 67 mm 675 g 310 Y Aug 2018 1,999i
8.
 
Nikon Z7 134 mm 101 mm 67 mm 675 g 330 Y Aug 2018 3,399i
9.
 
Olympus E-M5 III 125 mm 85 mm 50 mm 414 g 310 Y Oct 2019 1,199 i
10.
 
Olympus E-M10 II 120 mm 83 mm 47 mm 390 g 320 n Aug 2015 649i
11.
 
Olympus E-M10 119 mm 82 mm 46 mm 396 g 320 n Jan 2014 699i
12.
 
Olympus E-M1 130 mm 94 mm 63 mm 497 g 350 Y Sep 2013 1,399i
13.
 
Olympus E-M5 122 mm 89 mm 43 mm 425 g 360 Y Feb 2012 1,299i
14.
 
Sony A7S III 127 mm 97 mm 81 mm 699 g 600 Y Jul 2020 3,499 i
15.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 3,499 i
16.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199i
17.
 
Sony A99 II 143 mm 104 mm 76 mm 849 g 490 Y Sep 2016 3,199 i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The E-M5 II was launched at a markedly lower price (by 63 percent) than the Z7 II, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

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Sensor comparison

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Nikon Z7 II features a full frame sensor and the Olympus E-M5 II a Four Thirds sensor. The sensor area in the E-M5 II is 74 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 2.0. The sensor in the Z7 II has a native 3:2 aspect ratio, while the one in the E-M5 II offers a 4:3 aspect.

Nikon Z7 II and Olympus E-M5 II sensor measures

With 45.4MP, the Z7 II offers a higher resolution than the E-M5 II (15.9MP), but the Z7 II nevertheless has larger individual pixels (pixel pitch of 4.35μm versus 3.76μm for the E-M5 II) due to its larger sensor. Moreover, the Z7 II is a much more recent model (by 5 years and 8 months) than the E-M5 II, 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 the Z7 II has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Nikon Z7 II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the Z7 II for good quality output (200 dots per inch) amounts to 41.3 x 27.5 inches or 104.9 x 69.9 cm, for very good quality (250 dpi) 33 x 22 inches or 83.9 x 55.9 cm, and for excellent quality (300 dpi) 27.5 x 18.3 inches or 69.9 x 46.6 cm. The corresponding values for the Olympus E-M5 II are 23 x 17.3 inches or 58.5 x 43.9 cm for good quality, 18.4 x 13.8 inches or 46.8 x 35.1 cm for very good quality, and 15.4 x 11.5 inches or 39 x 29.3 cm for excellent quality prints.

The Z7 II has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the Z7 II, the E-M5 II has the capacity to capture high quality composite images (40MP) 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 Nikon Z7 II has a native sensitivity range from ISO 64 to ISO 25600, which can be extended to ISO 32-102400. The corresponding ISO settings for the Olympus OM-D E-M5 Mark II are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 100-25600.

Z7 II versus E-M5 II MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

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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.
 
Nikon Z7 II Full Frame 45.4 8256 55044K/60p........
2.
 
Olympus E-M5 II Four Thirds 15.9 4608 34561080/60p23.012.584273
3.
 
Canon R5 Full Frame 44.8 8192 54648k/30p25.314.6304295
4.
 
Canon R6 Full Frame 20.0 5472 36484k/60p24.214.3339490
5.
 
Nikon Z5 Full Frame 24.2 6016 40164K/30p........
6.
 
Nikon Z6 II Full Frame 24.3 6048 40244K/60p........
7.
 
Nikon Z6 Full Frame 24.3 6048 40244K/30p25.314.3329995
8.
 
Nikon Z7 Full Frame 45.4 8256 55044K/30p26.314.6266899
9.
 
Olympus E-M5 III Four Thirds 20.2 5184 38884K/30p........
10.
 
Olympus E-M10 II Four Thirds 15.9 4608 34561080/60p23.112.584273
11.
 
Olympus E-M10 Four Thirds 15.9 4608 34561080/30p22.812.388472
12.
 
Olympus E-M1 Four Thirds 15.9 4608 34561080/30p23.012.775773
13.
 
Olympus E-M5 Four Thirds 15.9 4608 34561080/60i22.812.382671
14.
 
Sony A7S III Full Frame 12.0 4240 28324K/120p23.713.9252086
15.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.8334499
16.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
17.
 
Sony A99 II Full Frame 42.2 7952 53044K/30p25.413.4231792

Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the Z7 II provides a higher video resolution than the E-M5 II. It can shoot video footage at 4K/60p, while the Olympus is limited to 1080/60p.

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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 Z7 II offers a substantially higher resolution than the one in the E-M5 II (3690k vs 2360k dots). The following table reports on some other key feature differences and similarities of the Nikon Z7 II, the Olympus E-M5 II, and comparable 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.
 
Nikon Z7 II3690 Y 3.2 2100 tilting Y 1/8000s 10.0 n Y
2.
 
Olympus E-M5 II2360 n 3.0 1037 swivel Y 1/8000s 10.0 n Y
3.
 
Canon R55760 Y 3.2 2100 swivel Y 1/8000s 10.0 n Y
4.
 
Canon R65760 n 3.0 1620 swivel Y 1/8000s 12.0 n Y
5.
 
Nikon Z53690 n 3.2 1040 tilting Y 1/8000s 4.5 n Y
6.
 
Nikon Z6 II3690 Y 3.2 2100 tilting Y 1/8000s 14.0 n Y
7.
 
Nikon Z63690 Y 3.2 2100 tilting Y 1/8000s 12.0 n Y
8.
 
Nikon Z73690 Y 3.2 2100 tilting Y 1/8000s 9.0 n Y
9.
 
Olympus E-M5 III2360 n 3.0 1040 swivel Y 1/8000s 10.0 n Y
10.
 
Olympus E-M10 II2360 n 3.0 1040 tilting Y 1/4000s 8.0 Y Y
11.
 
Olympus E-M101440 n 3.0 1037 tilting Y 1/4000s 8.0 Y 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.
 
Sony A7S III9440 n 3.0 1440 swivel Y 1/8000s 10.0 n Y
15.
 
Sony A7R IV5760 n 3.0 1440 tilting Y 1/8000s 10.0 n Y
16.
 
Sony A7R III3686 n 3.0 1440 tilting Y 1/8000s 10.0 n Y
17.
 
Sony A99 II2400 Y 3.0 1229 full-flex n 1/8000s 12.0 n Y

One feature that is present on the Z7 II, but is missing on the E-M5 II is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.

The E-M5 II has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the Z7 II 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 Nikon Z7 II and the Olympus E-M5 II 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.

The Z7 II writes its imaging data to CFexpress or SDXC cards, while the E-M5 II uses SDXC cards. The Z7 II features dual card slots, which can be very useful in case a memory card fails. In contrast, the E-M5 II only has one slot. Both cameras support UHS-II cards, which provide for Ultra High Speed data transfer of up to 312 MB/s.

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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 Nikon Z7 II and Olympus OM-D E-M5 Mark II 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.
 
Nikon Z7 IIYstereomonoYYmicro3.2Y-Y
2.
 
Olympus E-M5 IIYstereomonoY-micro2.0Y--
3.
 
Canon R5YmonomonoYYmicro3.2Y-Y
4.
 
Canon R6YmonomonoYYmicro3.2Y-Y
5.
 
Nikon Z5YstereomonoYYmicro3.2Y-Y
6.
 
Nikon Z6 IIYstereomonoYYmicro3.2Y-Y
7.
 
Nikon Z6YstereomonoYYmicro3.1Y-Y
8.
 
Nikon Z7YstereomonoYYmicro3.1Y-Y
9.
 
Olympus E-M5 IIIYstereomonoY-micro2.0Y-Y
10.
 
Olympus E-M10 IIYstereomono--micro2.0Y--
11.
 
Olympus E-M10Ystereomono--micro2.0Y--
12.
 
Olympus E-M1YstereomonoY-micro2.0Y--
13.
 
Olympus E-M5Ystereomono--mini2.0---
14.
 
Sony A7S IIIYstereomonoYYfull3.2Y-Y
15.
 
Sony A7R IVYstereomonoYYmicro3.1YYY
16.
 
Sony A7R IIIYstereomonoYYmicro3.1YYY
17.
 
Sony A99 IIYstereomonoYYmicro2.0YYY

It is notable that the Z7 II has a headphone jack, which is not present on the E-M5 II This port makes it possible to attach external headphones and monitor the quality of sound during the recording process.

Studio photographers will appreciate that the Olympus E-M5 II (unlike the Z7 II) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The Z7 II is a recent model that features in the current product line-up of Nikon. In contrast, the E-M5 II has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the E-M5 II was succeeded by the Olympus E-M5 III. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Nikon and Olympus websites.

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Review summary

So what conclusions can be drawn? Which of the two cameras – the Nikon Z7 II or the Olympus E-M5 II – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

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Reasons to prefer the Nikon Z7 II:

  • More detail: Offers more megapixels (45.4 vs 15.9MP) with a 72% higher linear resolution.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • 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/60p vs 1080/60p).
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • More detailed viewfinder: Has higher resolution electronic viewfinder (3690k vs 2360k dots).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.80x vs 0.74x).
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (2100k vs 1037k dots).
  • Longer lasting: Can take more shots (420 versus 310) on a single battery charge.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Faster data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More modern: Reflects 5 years and 8 months of technical progress since the E-M5 II launch.

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Arguments in favor of the Olympus OM-D E-M5 Mark II:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • 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.
  • More compact: Is smaller (124x85mm vs 134x101mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 236g or 33 percent) and is thus easier to take along.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • More affordable: Was introduced into a lower priced category (63 percent cheaper at launch).
  • More heavily discounted: Has been around for much longer (launched in February 2015).

If the count of individual advantages (bullet points above) is taken as a guide, the Z7 II is the clear winner of the match-up (20 : 9 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

Z7 II 20:09 E-M5 II

How about other alternatives? Do the specifications of the Nikon Z7 II and the Olympus E-M5 II place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera listing whether the two cameras rank among the cream of the crop.

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains incomplete and does no justice, for example, to the way the Z7 II or the E-M5 II perform in practice. 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.
 
Nikon Z7 II4.5/5....4.5/54.5/5 Oct 2020 2,999 i
2.
 
Olympus E-M5 II5/5+ +81/1005/55/5 Feb 2015 1,099i
3.
 
Canon R54.5/5..91/1004.5/54.5/5 Jul 2020 3,899 i
4.
 
Canon R65/5+ +90/1004.5/55/5 Jul 2020 2,499 i
5.
 
Nikon Z54/5..89/1004.5/54/5 Jul 2020 1,399 i
6.
 
Nikon Z6 II4.5/5..89/1004.5/54.5/5 Oct 2020 1,999 i
7.
 
Nikon Z65/5....4.5/55/5 Aug 2018 1,999i
8.
 
Nikon Z75/5+89/1004.5/55/5 Aug 2018 3,399i
9.
 
Olympus E-M5 III5/5+82/1004.5/54.5/5 Oct 2019 1,199 i
10.
 
Olympus E-M10 II4.5/5+ +80/1005/55/5 Aug 2015 649i
11.
 
Olympus E-M104/5..80/1005/55/5 Jan 2014 699i
12.
 
Olympus E-M15/5+ +84/1004.5/54.5/5 Sep 2013 1,399i
13.
 
Olympus E-M54/5+ +80/1004.5/55/5 Feb 2012 1,299i
14.
 
Sony A7S III..+ +91/1004.5/55/5 Jul 2020 3,499 i
15.
 
Sony A7R IV5/5+91/1004.5/55/5 Jul 2019 3,499 i
16.
 
Sony A7R III..+ +90/1004.5/55/5 Oct 2017 3,199i
17.
 
Sony A99 II....85/1004.5/54.5/5 Sep 2016 3,199 i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted 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. A score, therefore, has to be seen in close connection to the price and market introduction time 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.

Nikon Z7 II:
Check Amazon price
Olympus E-M5 II:
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Other camera comparisons

Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications: Nikon Z7 II vs Olympus E-M5 II

    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 Nikon Z7 II Olympus E-M5 II
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Nikon Z mount lenses Micro Four Thirds lenses
    Launch Date October 2020 February 2015
    Launch Price USD 2,999 USD 1,099
    Sensor Specs Nikon Z7 II Olympus E-M5 II
    Sensor Technology BSI-CMOS CMOS
    Sensor Format Full Frame Sensor Four Thirds Sensor
    Sensor Size 35.9 x 23.9 mm 17.3 x 13.0 mm
    Sensor Area 858.01 mm2 224.9 mm2
    Sensor Diagonal 43.1 mm 21.6 mm
    Crop Factor 1.0x 2.0x
    Sensor Resolution 45.4 Megapixels 15.9 Megapixels
    Image Resolution 8256 x 5504 pixels 4608 x 3456 pixels
    Pixel Pitch 4.35 μm 3.76 μm
    Pixel Density 5.30 MP/cm2 7.08 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 4K/60p Video 1080/60p Video
    ISO Setting 64 - 25,600 ISO 200 - 25,600 ISO
    ISO Boost 32 - 102,400 ISO 100 - 25,600 ISO
    Image Processor DUAL EXPEED 6 TruePic VII
    DXO Sensor Quality (score) .. 73
    DXO Color Depth (bits) .. 23.0
    DXO Dynamic Range (EV) .. 12.5
    DXO Low Light (ISO) .. 842
    Screen Specs Nikon Z7 II Olympus E-M5 II
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.80x 0.74x
    Viewfinder Resolution 3690k dots 2360k dots
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.2inch 3.0inch
    LCD Resolution 2100k dots 1037k dots
    LCD Attachment Tilting screen Swivel screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Nikon Z7 II Olympus E-M5 II
    Focus System On-Sensor Phase-detect Contrast-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/8000s
    Continuous Shooting 10 shutter flaps/s 10 shutter flaps/s
    Electronic Shutterup to 1/8000sup to 1/16000s
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium CFexpress or SDXC cards SDXC cards
    Second Storage Option Dual card slots Single card slot
    UHS card support UHS-II UHS-II
    Connectivity Specs Nikon Z7 II Olympus E-M5 II
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 3.2 USB 2.0
    HDMI Port micro HDMI micro HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket Headphone port no Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Nikon Z7 II Olympus E-M5 II
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type EN-EL15c BLN-1
    Battery Life (CIPA)420 shots per charge310 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 134 x 101 x 70 mm
    (5.3 x 4.0 x 2.8 in)
    124 x 85 x 45 mm
    (4.9 x 3.3 x 1.8 in)
    Camera Weight 705 g (24.9 oz) 469 g (16.5 oz)

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