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Nikon Z7 vs Olympus E-620

The Nikon Z7 and the Olympus E-620 are two digital cameras that were revealed to the public, respectively, in August 2018 and February 2009. The Z7 is a mirrorless interchangeable lens camera, while the E-620 is a DSLR. The cameras are based on a full frame (Z7) and a Four Thirds (E-620) sensor. The Nikon has a resolution of 45.4 megapixels, whereas the Olympus provides 12.2 MP.

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

Headline Specifications
Nikon Z7
versus
Olympus E-620
Nikon Z7   Olympus E-620
Mirrorless system camera Digital single lens reflex
Nikon Z mount lenses Four Thirds lenses
45.4 MP – Full Frame sensor 12.2 MP – Four Thirds sensor
4K/30p Video no Video
ISO 64-25,600 (32 - 102,400) ISO 100-3,200
Electronic viewfinder (3690k dots) Optical viewfinder
3.2" LCD – 2100k dots 2.7" LCD – 230k dots
Tilting touchscreen Swivel screen (not touch-sensitive)
9 shutter flaps per second 4 shutter flaps per second
In-body stabilizationIn-body stabilization
Weathersealed bodynot weather sealed
330 shots per battery charge500 shots per battery charge
134 x 101 x 67 mm, 675 g 130 x 94 x 60 mm, 521 g
logo
Check Z7 offers at
ebay.com
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Check E-620 offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon Z7 and the Olympus E-620? 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.

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Body comparison

The physical size and weight of the Nikon Z7 and the Olympus E-620 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth dimensions are rounded to the nearest millimeter.

Size Nikon Z7 vs Olympus E-620
Compare Z7 versus E-620 top
Comparison Z7 or E-620 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-620 is notably smaller (10 percent) than the Nikon Z7. Moreover, the E-620 is markedly lighter (23 percent) than the Z7. It is worth mentioning in this context that the Z7 is splash and dust resistant, while the E-620 does not feature any corresponding weather-sealing.

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 gets 330 shots out of its Nikon EN-EL15b battery, while the E-620 can take 500 images on a single charge of its Olympus BLS-1 power pack. The power pack in the Z7 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
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
1.
 
Nikon Z7 134 mm 101 mm 67 mm 675 g 330 i Aug 2018 US$ 3 399ebay.com
2.
 
Olympus E-620 130 mm 94 mm 60 mm 521 g 500 i Feb 2009 US$ 699ebay.com
3.
 
Canon R5 138 mm 98 mm 88 mm 738 g 320 i Jul 2020 US$ 3 899 amazon.com
4.
 
Nikon D850 146 mm 124 mm 79 mm 1005 g 1840 i Jul 2017 US$ 3 299 amazon.com
5.
 
Nikon Z6 134 mm 101 mm 67 mm 675 g 310 i Aug 2018 US$ 1 999ebay.com
6.
 
Nikon Z7 II 134 mm 101 mm 70 mm 705 g 420 i Oct 2020 US$ 2 999 amazon.com
7.
 
Nikon Z8 144 mm 119 mm 83 mm 910 g 340 i May 2023 US$ 3 999 amazon.com
8.
 
Olympus E-410 130 mm 91 mm 53 mm 435 g 500 i Mar 2007 US$ 699ebay.com
9.
 
Olympus E-420 130 mm 91 mm 53 mm 440 g 500 i Mar 2008 US$ 599ebay.com
10.
 
Olympus E-510 136 mm 92 mm 68 mm 538 g 750 i Mar 2007 US$ 799ebay.com
11.
 
Olympus E-520 136 mm 92 mm 68 mm 535 g 750 i May 2008 US$ 699ebay.com
12.
 
Olympus E-600 130 mm 94 mm 60 mm 535 g 500 i Aug 2009 US$ 449ebay.com
13.
 
Panasonic S1R 149 mm 110 mm 97 mm 1016 g 380 i Feb 2019 US$ 3 699ebay.com
14.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 i Jun 2015 US$ 3 199ebay.com
15.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 i Oct 2017 US$ 3 199ebay.com
16.
 
Sony A7R IIIA 127 mm 96 mm 74 mm 650 g 650 i Apr 2021 US$ 3 199 amazon.com
17.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 i Jul 2019 US$ 3 499ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
  empty Camera
Model

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 E-620 was launched at a markedly lower price (by 79 percent) than the Z7, which puts it into a different market segment. 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

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. 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 associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Nikon Z7 features a full frame sensor and the Olympus E-620 a Four Thirds sensor. The sensor area in the E-620 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 has a native 3:2 aspect ratio, while the one in the E-620 offers a 4:3 aspect.

Nikon Z7 and Olympus E-620 sensor measures

With 45.4MP, the Z7 offers a higher resolution than the E-620 (12.2MP), but the Z7 nevertheless has marginally larger individual pixels (pixel pitch of 4.35μm versus 4.29μm for the E-620) due to its larger sensor. Moreover, the Z7 is a much more recent model (by 9 years and 5 months) than the E-620, 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 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Nikon Z7 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the Z7 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-620 are 20.2 x 15.1 inches or 51.2 x 38.4 cm for good quality, 16.1 x 12.1 inches or 41 x 30.7 cm for very good quality, and 13.4 x 10.1 inches or 34.1 x 25.6 cm for excellent quality prints.

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

The Nikon Z7 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 E-620 are ISO 100 to ISO 3200 (no boost).

In terms of underlying technology, the Z7 is build around a BSI-CMOS sensor, while the E-620 uses a CMOS imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

Z7 versus E-620 MP

For many cameras, data on sensor performance has been reported by DXO Mark. 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. Of the two cameras under review, the Z7 provides substantially higher image quality than the E-620, with an overall score that is 44 points higher. This advantage is based on 5 bits higher color depth, 4.3 EV in additional dynamic range, and 2.3 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

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Sensor Characteristics
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Nikon Z7 Full Frame 45.4 8256 55044K/30p26.314.6266899
2.
 
Olympus E-620 Four Thirds 12.2 4032 3024i21.310.353655
3.
 
Canon R5 Full Frame 44.8 8192 54648K/30p25.314.6304295
4.
 
Nikon D850 Full Frame 45.4 8256 55044K/30p26.414.82660100
5.
 
Nikon Z6 Full Frame 24.3 6048 40244K/30p25.314.3329995
6.
 
Nikon Z7 II Full Frame 45.4 8256 55044K/60p26.314.72841100
7.
 
Nikon Z8 Full Frame 45.4 8256 55048K/30p26.314.2254898
8.
 
Olympus E-410 Four Thirds 10.0 3648 2736i21.110.049451
9.
 
Olympus E-420 Four Thirds 10.0 3648 2736i21.510.452756
10.
 
Olympus E-510 Four Thirds 10.0 3648 2736i21.210.044252
11.
 
Olympus E-520 Four Thirds 10.0 3648 2736i21.410.454855
12.
 
Olympus E-600 Four Thirds 12.2 4032 3024i21.510.354155
13.
 
Panasonic S1R Full Frame 46.7 8368 55844K/60p26.414.13525100
14.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
15.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
16.
 
Sony A7R IIIA Full Frame 42.2 7952 53044K/30p26.014.73523100
17.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.8334499
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
  empty Camera
Model

Many modern cameras cannot only take still pictures, but also record videos. The Z7 indeed provides movie recording capabilities, while the E-620 does not. The highest resolution format that the Z7 can use is 4K/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the Z7 has an electronic viewfinder (3690k dots), while the E-620 has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinder in the Z7 offers a wider field of view (100%) than the one in the E-620 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the Z7 has a higher magnification (0.80x vs 0.48x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Nikon Z7 and Olympus E-620 along with similar information for a selection of comparators.

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Core Features
  empty 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.
 
Nikon Z73690 i3.2 / 2100 tilting i 1/8000s 9.0/s i i
2.
 
Olympus E-620optical i2.7 / 230 swivel i 1/4000s 4.0/s i i
3.
 
Canon R55760 i3.2 / 2100 swivel i 1/8000s 12.0/s i i
4.
 
Nikon D850optical i3.2 / 2359 tilting i 1/8000s 9.0/s i i
5.
 
Nikon Z63690 i3.2 / 2100 tilting i 1/8000s 12.0/s i i
6.
 
Nikon Z7 II3690 i3.2 / 2100 tilting i 1/8000s 10.0/s i i
7.
 
Nikon Z83690 i3.2 / 2089 full-flex i 1/32000s 30.0/s i i
8.
 
Olympus E-410optical i2.5 / 215 fixed i 1/4000s 3.0/s i i
9.
 
Olympus E-420optical i2.7 / 215 fixed i 1/4000s 3.5/s i i
10.
 
Olympus E-510optical i2.5 / 215 fixed i 1/4000s 3.0/s i i
11.
 
Olympus E-520optical i2.7 / 215 fixed i 1/4000s 3.5/s i i
12.
 
Olympus E-600optical i2.7 / 230 swivel i 1/4000s 4.0/s i i
13.
 
Panasonic S1R5760 i3.2 / 2100 full-flex i 1/8000s 9.0/s i i
14.
 
Sony A7R II2400 i3.0 / 1229 tilting i 1/8000s 5.0/s i i
15.
 
Sony A7R III3686 i3.0 / 1440 tilting i 1/8000s 10.0/s i i
16.
 
Sony A7R IIIA3686 i3.0 / 2340 tilting i 1/8000s 10.0/s i i
17.
 
Sony A7R IV5760 i3.0 / 1440 tilting i 1/8000s 10.0/s i i
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
  empty 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
  empty Camera
Model

One feature that is present on the Z7, but is missing on the E-620 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-620 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 does not have a selfie-screen.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the Z7 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 Nikon Z7 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 Z7 writes its imaging data to XQD cards, while the E-620 uses Compact Flash or xD Picture cards. The E-620 features dual card slots, which can be very useful in case a memory card fails. In contrast, the Z7 only has one slot.

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 and Olympus E-620 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Nikon Z7istereo / monoiimicro3.1iii
2.
 
Olympus E-620ii / iiii2.0iii
3.
 
Canon R5imono / monoiimicro3.2iii
4.
 
Nikon D850istereo / monoiimini3.0iii
5.
 
Nikon Z6istereo / monoiimicro3.1iii
6.
 
Nikon Z7 IIistereo / monoiimicro3.2iii
7.
 
Nikon Z8istereo / monoiifull3.2iii
8.
 
Olympus E-410ii / iiii2.0iii
9.
 
Olympus E-420ii / iiii2.0iii
10.
 
Olympus E-510ii / iiii2.0iii
11.
 
Olympus E-520ii / iiii2.0iii
12.
 
Olympus E-600ii / iiii2.0iii
13.
 
Panasonic S1Ristereo / monoiifull3.1iii
14.
 
Sony A7R IIistereo / monoiimicro2.0iii
15.
 
Sony A7R IIIistereo / monoiimicro3.1iii
16.
 
Sony A7R IIIAistereo / monoiimicro3.2iii
17.
 
Sony A7R IVistereo / monoiimicro3.1iii
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
  empty Camera
Model

It is notable that the Z7 offers wifi support, while the E-620 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

Both the Z7 and the E-620 have been discontinued, but can regularly be found used on ebay. The E-620 was replaced by the Olympus E-600, while the Z7 was followed by the Nikon Z7 II. Further information on the features and operation of the Z7 and E-620 can be found, respectively, in the Nikon Z7 Manual (free pdf) or the online Olympus E-620 Manual.

Review summary

So how do things add up? Is there a clear favorite between the Nikon Z7 and the Olympus E-620? Which camera is better? The listing below highlights the relative strengths of the two models.

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Advantages of the Nikon Z7:

  • More detail: Offers more megapixels (45.4 vs 12.2MP) with a 97% higher linear resolution.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (44 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (5 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (4.3 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (2.3 stops ISO advantage).
  • Broader imaging potential: Can record not only still images but also 4K/30p movies.
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More complete view: Has a viewfinder with a larger field of view (100% vs 95%).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.80x vs 0.48x).
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.2" vs 2.7") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (2100k vs 230k 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 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (9 vs 4 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.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
  • 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.
  • More modern: Reflects 9 years and 5 months of technical progress since the E-620 launch.

ilogo

Arguments in favor of the Olympus E-620:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • 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.
  • Less heavy: Has a lower weight (by 154g or 23 percent) and is thus easier to take along.
  • Longer lasting: Gets more shots (500 versus 330) out of a single battery charge.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More affordable: Was introduced into a lower priced category (79 percent cheaper at launch).
  • More heavily discounted: Has been around for much longer (launched in February 2009).

If the number of relative strengths (bullet points above) is taken as a guide, the Z7 is the clear winner of the match-up (26 : 10 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 26:10 E-620

How about other alternatives? Do the specifications of the Nikon Z7 and the Olympus E-620 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR 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 Z7 or the E-620. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

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.

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Expert Camera Reviews
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Nikon Z75/5+4.8/589/1004.5/55/5 Aug 2018 US$ 3 399ebay.com
2.
 
Olympus E-6203/588/100..72/1004.5/55/5 Feb 2009 US$ 699ebay.com
3.
 
Canon R54.5/5+4/591/1004.5/54.5/5 Jul 2020 US$ 3 899 amazon.com
4.
 
Nikon D8504.5/5+ +5/589/1004.5/55/5 Jul 2017 US$ 3 299 amazon.com
5.
 
Nikon Z65/5..5/589/1004.5/55/5 Aug 2018 US$ 1 999ebay.com
6.
 
Nikon Z7 II4.5/5..4.5/5..4.5/54.5/5 Oct 2020 US$ 2 999 amazon.com
7.
 
Nikon Z85/5..5/594/1005/54.5/5 May 2023 US$ 3 999 amazon.com
8.
 
Olympus E-410..86/100..+ +4/54.5/5 Mar 2007 US$ 699ebay.com
9.
 
Olympus E-420..85/100..+ +4/54.5/5 Mar 2008 US$ 599ebay.com
10.
 
Olympus E-510..89/100..+ +3.5/54.5/5 Mar 2007 US$ 799ebay.com
11.
 
Olympus E-520..87/100..+ +4.5/54.5/5 May 2008 US$ 699ebay.com
12.
 
Olympus E-600..........4.5/5 Aug 2009 US$ 449ebay.com
13.
 
Panasonic S1R4.5/5..4.6/589/1004.5/54.5/5 Feb 2019 US$ 3 699ebay.com
14.
 
Sony A7R II5/5+ +5/590/1005/55/5 Jun 2015 US$ 3 199ebay.com
15.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 US$ 3 199ebay.com
16.
 
Sony A7R IIIA..+ +4/590/1004.5/55/5 Apr 2021 US$ 3 199 amazon.com
17.
 
Sony A7R IV5/5+4.5/591/1004.5/55/5 Jul 2019 US$ 3 499ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
  empty  Camera 
 Model 

Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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Check Z7 offers at
ebay.com
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Check E-620 offers at
ebay.com

Other camera comparisons

Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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Specifications: Nikon Z7 vs Olympus E-620

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 Olympus E-620
Camera Type Mirrorless system camera Digital single lens reflex
Camera Lens Nikon Z mount lenses Four Thirds lenses
Launch Date August 2018 February 2009
Launch Price USD 3,399 USD 699
Sensor Specs Nikon Z7 Olympus E-620
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 12.2 Megapixels
Image Resolution 8256 x 5504 pixels 4032 x 3024 pixels
Pixel Pitch 4.35 μm 4.29 μm
Pixel Density 5.30 MP/cm2 5.42 MP/cm2
Moiré control no AA filter Anti-Alias filter
Movie Capability 4K/30p Video no Video
ISO Setting 64 - 25,600 ISO 100 - 3,200 ISO
ISO Boost 32 - 102,400 ISO no Enhancement
Image Processor EXPEED 6 TruePic III+
DXO Sensor Quality (score) 99 55
DXO Color Depth (bits) 26.3 21.3
DXO Dynamic Range (EV) 14.6 10.3
DXO Low Light (ISO) 2668 536
Screen Specs Nikon Z7 Olympus E-620
Viewfinder Type Electronic viewfinder Optical viewfinder
Viewfinder Field of View 100% 95%
Viewfinder Magnification 0.80x 0.48x
Viewfinder Resolution 3690k dots
Top-Level Screen Control Panel no Top Display
LCD Framing Live View Live View
Rear LCD Size 3.2inch 2.7inch
LCD Resolution 2100k dots 230k dots
LCD Attachment Tilting screen Swivel screen
Touch Input Touchscreen no Touchscreen
Shooting Specs Nikon Z7 Olympus E-620
Focus System On-Sensor Phase-detect Phase-detect AF
Manual Focusing AidFocus Peakingno Peaking Feature
Continuous Shooting 9 shutter flaps/s 4 shutter flaps/s
Electronic Shutterup to 1/8000sno E-Shutter
Time-Lapse PhotographyIntervalometer built-inno Intervalometer
Image StabilizationIn-body stabilizationIn-body stabilization
Fill Flash no On-Board Flash Built-in Flash
Storage Medium XQD cards CF or XD cards
Single or Dual Card Slots Single card slot Dual card slots
Connectivity Specs Nikon Z7 Olympus E-620
External Flash Hotshoe Hotshoe
USB Connector USB 3.1 USB 2.0
HDMI Port micro HDMI no 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 Nikon Z7 Olympus E-620
Environmental SealingWeathersealed bodynot weather sealed
Battery Type Nikon EN-EL15b Olympus BLS-1
Battery Life (CIPA)330 shots per charge500 shots per charge
In-Camera Charging USB charging no USB charging
Body Dimensions 134 x 101 x 67 mm
(5.3 x 4.0 x 2.6 in)
130 x 94 x 60 mm
(5.1 x 3.7 x 2.4 in)
Camera Weight 675 g (23.8 oz) 521 g (18.4 oz)
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