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Olympus E-620 vs Sony A7R III

The Olympus E-620 and the Sony Alpha A7R III are two digital cameras that were revealed to the public, respectively, in February 2009 and October 2017. The E-620 is a DSLR, while the A7R III is a mirrorless interchangeable lens camera. The cameras are based on a Four Thirds (E-620) and a full frame (A7R III) sensor. The Olympus has a resolution of 12.2 megapixels, whereas the Sony provides 42.2 MP.

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

Headline Specifications
Olympus E-620
versus
Sony A7R III
Olympus E-620   Sony A7R III
Digital single lens reflex Mirrorless system camera
Four Thirds lenses Sony E mount lenses
12.2 MP – Four Thirds sensor 42.2 MP – Full Frame sensor
no Video 4K/30p Video
ISO 100-3,200 ISO 100-32,000 (50 - 102,400)
Optical viewfinder Electronic viewfinder (3686k dots)
2.7" LCD – 230k dots 3.0" LCD – 1440k dots
Swivel screen (not touch-sensitive) Tilting touchscreen
4 shutter flaps per second 10 shutter flaps per second
In-body stabilizationIn-body stabilization
not weather sealedWeathersealed body
500 shots per battery charge650 shots per battery charge
130 x 94 x 60 mm, 521 g 127 x 96 x 74 mm, 650 g
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Check E-620 offers at
ebay.com
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Check A7R III offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus E-620 and the Sony Alpha A7R III? 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 side-by-side display below illustrates the physical size and weight of the Olympus E-620 and the Sony A7R III. 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 measures are rounded to the nearest millimeter.

Size Olympus E-620 vs Sony A7R III
Compare E-620 versus A7R III top
Comparison E-620 or A7R III 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 and the Sony A7R III are of equal size. However, the A7R III is markedly heavier (25 percent) than the E-620. It is noteworthy in this context that the A7R III is splash and dust-proof, 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. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Four Thirds Lens Catalog (E-620) and the Sony FE Lens Catalog (A7R III). Mirrorless cameras, such as the A7R III, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.

Concerning battery life, the E-620 gets 500 shots out of its Olympus BLS-1 battery, while the A7R III can take 650 images on a single charge of its Sony NP-FZ100 power pack. The power pack in the A7R III can be charged via the USB port, which can be very convenient when travelling.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Olympus E-620 130 mm 94 mm 60 mm 521 g 500 n Feb 2009 699ebay.com
2.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199ebay.com
3.
 
Olympus E-PL1 115 mm 72 mm 42 mm 334 g 290 n Feb 2010 599ebay.com
4.
 
Olympus E-450 130 mm 91 mm 53 mm 440 g 500 n Mar 2009 499ebay.com
5.
 
Olympus E-600 130 mm 94 mm 60 mm 535 g 500 n Aug 2009 449ebay.com
6.
 
Olympus E-P1 121 mm 70 mm 36 mm 355 g 300 n Jun 2009 799ebay.com
7.
 
Olympus E-P2 121 mm 70 mm 36 mm 355 g 300 n Nov 2009 799ebay.com
8.
 
Olympus E-30 142 mm 108 mm 75 mm 701 g 750 n Nov 2008 1,299ebay.com
9.
 
Olympus E-420 130 mm 91 mm 53 mm 440 g 500 n Mar 2008 599ebay.com
10.
 
Olympus E-520 136 mm 92 mm 68 mm 535 g 750 n May 2008 699ebay.com
11.
 
Olympus E-410 130 mm 91 mm 53 mm 435 g 500 n Mar 2007 699ebay.com
12.
 
Olympus E-510 136 mm 92 mm 68 mm 538 g 750 n Mar 2007 799ebay.com
13.
 
Sony A7R IIIA 127 mm 96 mm 74 mm 650 g 650 Y Apr 2021 3,199 amazon.com
14.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 3,499ebay.com
15.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 4,499ebay.com
16.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 3,199ebay.com
17.
 
Sony A7S II 127 mm 96 mm 60 mm 627 g 370 Y Sep 2015 2,999ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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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. The E-620 was launched at a markedly lower price (by 78 percent) than the A7R III, 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.

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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the 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 Olympus E-620 features a Four Thirds sensor and the Sony A7R III a full frame sensor. The sensor area in the A7R III is 283 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-620 has a native 4:3 aspect ratio, while the one in the A7R III offers a 3:2 aspect.

Olympus E-620 and Sony A7R III sensor measures

With 42.2MP, the A7R III offers a higher resolution than the E-620 (12.2MP), but the A7R III nevertheless has larger individual pixels (pixel pitch of 4.52μm versus 4.29μm for the E-620) due to its larger sensor. Moreover, the A7R III is a much more recent model (by 8 years and 8 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 pixel-units. Coming back to sensor resolution, it should be mentioned that the A7R III has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A7R III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7R III for good quality output (200 dots per inch) amounts to 39.8 x 26.5 inches or 101 x 67.4 cm, for very good quality (250 dpi) 31.8 x 21.2 inches or 80.8 x 53.9 cm, and for excellent quality (300 dpi) 26.5 x 17.7 inches or 67.3 x 44.9 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 A7R III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the E-620, the A7R III has the capacity to capture high quality composite images 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 E-620 has a native sensitivity range from ISO 100 to ISO 3200. The corresponding ISO settings for the Sony Alpha A7R III are ISO 100 to ISO 32000, with the possibility to increase the ISO range to 50-102400.

In terms of underlying technology, the E-620 is build around a CMOS sensor, while the A7R III uses a BSI-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.

E-620 versus A7R III MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). Of the two cameras under consideration, the A7R III offers substantially better image quality than the E-620 (overall score 45 points higher). The advantage is based on 4.7 bits higher color depth, 4.4 EV in additional dynamic range, and 2.7 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
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Olympus E-620 Four Thirds 12.2 4032 3024none21.310.353655
2.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
3.
 
Olympus E-PL1 Four Thirds 12.2 4032 3024720/30p21.510.148754
4.
 
Olympus E-450 Four Thirds 10.0 3648 2736none21.510.551256
5.
 
Olympus E-600 Four Thirds 12.2 4032 3024none21.510.354155
6.
 
Olympus E-P1 Four Thirds 12.2 4032 3024720/30p21.410.453655
7.
 
Olympus E-P2 Four Thirds 12.2 4032 3024720/30p21.510.450556
8.
 
Olympus E-30 Four Thirds 12.2 4032 3024none21.310.453055
9.
 
Olympus E-420 Four Thirds 10.0 3648 2736none21.510.452756
10.
 
Olympus E-520 Four Thirds 10.0 3648 2736none21.410.454855
11.
 
Olympus E-410 Four Thirds 10.0 3648 2736none21.110.049451
12.
 
Olympus E-510 Four Thirds 10.0 3648 2736none21.210.044252
13.
 
Sony A7R IIIA Full Frame 42.2 7952 53044K/30p26.014.73523100
14.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.8334499
15.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792
16.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
17.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
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Many modern cameras are not only capable of taking still images, but also of capturing video footage. The A7R III indeed provides for movie recording, while the E-620 does not. The highest resolution format that the A7R III can use is 4K/30p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the A7R III has an electronic viewfinder (3686k 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 A7R III 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 A7R III has a higher magnification (0.78x vs 0.48x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Olympus E-620 and Sony A7R III in connection with corresponding information for a sample of similar cameras.

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Core Features
# image 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-620optical n2.7 / 230 swivel n 1/4000s 4.0/s Y Y
2.
 
Sony A7R III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
3.
 
Olympus E-PL1optional n2.7 / 230 fixed n 1/2000s 3.0/s Y Y
4.
 
Olympus E-450optical n2.7 / 215 fixed n 1/4000s 3.5/s Y n
5.
 
Olympus E-600optical n2.7 / 230 swivel n 1/4000s 4.0/s Y Y
6.
 
Olympus E-P1none n3.0 / 230 fixed n 1/4000s 3.0/s n Y
7.
 
Olympus E-P2optional n3.0 / 230 fixed n 1/4000s 3.0/s n Y
8.
 
Olympus E-30optical Y2.7 / 230 swivel n 1/8000s 5.0/s Y Y
9.
 
Olympus E-420optical n2.7 / 215 fixed n 1/4000s 3.5/s Y n
10.
 
Olympus E-520optical n2.7 / 215 fixed n 1/4000s 3.5/s Y Y
11.
 
Olympus E-410optical n2.5 / 215 fixed n 1/4000s 3.0/s Y n
12.
 
Olympus E-510optical n2.5 / 215 fixed n 1/4000s 3.0/s Y Y
13.
 
Sony A7R IIIA3686 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
14.
 
Sony A7R IV5760 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
15.
 
Sony A93686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
16.
 
Sony A7R II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
17.
 
Sony A7S II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One difference between the cameras concerns the presence of an on-board flash. The E-620 has one, while the A7R III does not. While the built-in flash of the E-620 is not very powerful, it can at times be useful as a fill-in light.

The E-620 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 A7R III 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 A7R 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 Sony A7R 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-620 writes its imaging data to Compact Flash or xD Picture cards, while the A7R III uses SDXC or Memory Stick PRO Duo cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails.

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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 Olympus E-620 and Sony Alpha A7R III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Olympus E-620Y- / ----2.0---
2.
 
Sony A7R IIIYstereo / monoYYmicro3.1YYY
3.
 
Olympus E-PL1Ystereo / ---mini2.0---
4.
 
Olympus E-450Y- / ----2.0---
5.
 
Olympus E-600Y- / ----2.0---
6.
 
Olympus E-P1Ystereo / ---mini2.0---
7.
 
Olympus E-P2Ystereo / ---mini2.0---
8.
 
Olympus E-30Y- / ----2.0---
9.
 
Olympus E-420Y- / ----2.0---
10.
 
Olympus E-520Y- / ----2.0---
11.
 
Olympus E-410Y- / ----2.0---
12.
 
Olympus E-510Y- / ----2.0---
13.
 
Sony A7R IIIAYstereo / monoYYmicro3.2YYY
14.
 
Sony A7R IVYstereo / monoYYmicro3.1YYY
15.
 
Sony A9Ystereo / monoYYmicro2.0YYY
16.
 
Sony A7R IIYstereo / monoYYmicro2.0YY-
17.
 
Sony A7S IIYstereo / monoYYmicro2.0YY-
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It is notable that the A7R III offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the E-620 does not provide wifi capability.

Studio photographers will appreciate that the Sony A7R III (unlike the E-620) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the E-620 and the A7R III have been discontinued, but can regularly be found used on ebay. The E-620 was replaced by the Olympus E-600, while the A7R III was followed by the Sony A7R IV. Further information on the features and operation of the E-620 and A7R III can be found, respectively, in the Olympus E-620 Manual (free pdf) or the online Sony A7R III Manual.

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Review summary

So what is the bottom line? Which of the two cameras – the Olympus E-620 or the Sony A7R III – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.

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Advantages 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: Is lighter (by 129g or 20 percent) and hence easier to carry around.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced into a lower priced category (78 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in February 2009).

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Reasons to prefer the Sony Alpha A7R III:

  • More detail: Has more megapixels (42.2 vs 12.2MP), which boosts linear resolution by 90%.
  • 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 image quality: Scores substantially higher (45 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (4.7 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (4.4 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (2.7 stops ISO advantage).
  • Broader imaging potential: Can capture not only stills but also 4K/30p video.
  • 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 (0.78x vs 0.48x).
  • Larger screen: Has a bigger rear LCD (3.0" vs 2.7") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1440k vs 230k dots).
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (10 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.
  • Longer lasting: Gets more shots (650 versus 500) out of a single battery charge.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • More legacy lens friendly: Can use many 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 device pairing: Supports NFC for fast wireless image transfer over short distances.
  • 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.
  • More modern: Reflects 8 years and 8 months of technical progress since the E-620 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the A7R III is the clear winner of the contest (29 : 8 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.

E-620 08:29 A7R III

How about other alternatives? Do the specifications of the Olympus E-620 and the Sony A7R III place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings 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 says little about, for example, the shooting experience and imaging performance of the E-620 and the A7R III 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 where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular camera 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
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Olympus E-6203/588/100..72/1004.5/55/5 Feb 2009 699ebay.com
2.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 3,199ebay.com
3.
 
Olympus E-PL1..86/100..69/1004/54.5/5 Feb 2010 599ebay.com
4.
 
Olympus E-450........4/54/5 Mar 2009 499ebay.com
5.
 
Olympus E-600..........4.5/5 Aug 2009 449ebay.com
6.
 
Olympus E-P1..+..66/1004/54.5/5 Jun 2009 799ebay.com
7.
 
Olympus E-P23/5+..69/1004/54.5/5 Nov 2009 799ebay.com
8.
 
Olympus E-30......71/1004.5/54/5 Nov 2008 1,299ebay.com
9.
 
Olympus E-420..85/100..+ +4/54.5/5 Mar 2008 599ebay.com
10.
 
Olympus E-520..87/100..+ +4.5/54.5/5 May 2008 699ebay.com
11.
 
Olympus E-410..86/100..+ +4/54.5/5 Mar 2007 699ebay.com
12.
 
Olympus E-510..89/100..+ +3.5/54.5/5 Mar 2007 799ebay.com
13.
 
Sony A7R IIIA..+ +4/590/1004.5/55/5 Apr 2021 3,199 amazon.com
14.
 
Sony A7R IV5/5+4.5/591/1004.5/55/5 Jul 2019 3,499ebay.com
15.
 
Sony A95/5+ +4.8/589/1005/55/5 Apr 2017 4,499ebay.com
16.
 
Sony A7R II5/5+ +5/590/1005/55/5 Jun 2015 3,199ebay.com
17.
 
Sony A7S II5/5+....4.5/55/5 Sep 2015 2,999ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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Care should be taken when interpreting the review scores above, though. The ratings are only valid when referring to cameras in the same category and of the same age. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods 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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Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Olympus E-620 vs Sony A7R III

    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-620 Sony A7R III
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Four Thirds lenses Sony E mount lenses
    Launch Date February 2009 October 2017
    Launch Price USD 699 USD 3,199
    Sensor Specs Olympus E-620 Sony A7R III
    Sensor Technology CMOS BSI-CMOS
    Sensor Format Four Thirds Sensor Full Frame Sensor
    Sensor Size 17.3 x 13.0 mm 35.9 x 24.0 mm
    Sensor Area 224.9 mm2 861.6 mm2
    Sensor Diagonal 21.6 mm 43.2 mm
    Crop Factor 2.0x 1.0x
    Sensor Resolution 12.2 Megapixels 42.2 Megapixels
    Image Resolution 4032 x 3024 pixels 7952 x 5304 pixels
    Pixel Pitch 4.29 μm 4.52 μm
    Pixel Density 5.42 MP/cm2 4.90 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability no Video 4K/30p Video
    ISO Setting 100 - 3,200 ISO 100 - 32,000 ISO
    ISO Boost no Enhancement 50 - 102,400 ISO
    Image Processor TruePic III+ BIONZ X
    DXO Sensor Quality (score) 55 100
    DXO Color Depth (bits) 21.3 26.0
    DXO Dynamic Range (EV) 10.3 14.7
    DXO Low Light (ISO) 536 3523
    Screen Specs Olympus E-620 Sony A7R III
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 95% 100%
    Viewfinder Magnification 0.48x 0.78x
    Viewfinder Resolution 3686k dots
    LCD Framing Live View Live View
    Rear LCD Size 2.7inch 3.0inch
    LCD Resolution 230k dots 1440k dots
    LCD Attachment Swivel screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Olympus E-620 Sony A7R III
    Focus System Phase-detect AF On-Sensor Phase-detect
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 4 shutter flaps/s 10 shutter flaps/s
    Electronic Shutterno E-ShutterYES
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium CF or XD cards MS or SDXC cards
    Single or Dual Card Slots Dual card slots Dual card slots
    Connectivity Specs Olympus E-620 Sony A7R III
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.1
    HDMI Port no HDMI micro HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Olympus E-620 Sony A7R III
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Olympus BLS-1 Sony NP-FZ100
    Battery Life (CIPA)500 shots per charge650 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 130 x 94 x 60 mm
    (5.1 x 3.7 x 2.4 in)
    127 x 96 x 74 mm
    (5.0 x 3.8 x 2.9 in)
    Camera Weight 521 g (18.4 oz) 650 g (22.9 oz)
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