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Olympus E-M10 III versus Olympus E-620

The Olympus OM-D E-M10 Mark III and the Olympus E-620 are two digital cameras that were officially introduced, respectively, in August 2017 and February 2009. The E-M10 III is a mirrorless interchangeable lens camera, while the E-620 is a DSLR. Both cameras are equipped with a Four Thirds sensor. The E-M10 III has a resolution of 15.9 megapixel, whereas the E-620 provides 12.2 MP. Read on to find out how these two cameras compare with respect to their size, their sensors, their features, and their reception by expert reviewers.

Body comparison: Olympus E-M10 III vs Olympus E-620

The physical size and weight of the Olympus E-M10 III 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 measures are rounded to the nearest millimeter. If you prefer, you can also use the toggle button to switch to a comparison in percentage terms (in this case, the camera on the left – the E-M10 III – represents 100 percent across all the size and weight measures).

Compare Olympus E-M10 III vs Olympus E-620
Compare E-M10 III versus E-620 top
Compare E-M10 III and 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 larger (19 percent) than the Olympus E-M10 III. Moreover, the E-620 is markedly heavier (27 percent) than the E-M10 III. In this context, it is worth noting that neither the E-M10 III nor the E-620 are weather-sealed.

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. Both cameras have similarly sized sensors, but DSLRs have a larger flange-to-focal plane distance than mirrorless cameras, which imposes contraints on the optical engineering process and generally leads to bigger and heavier lenses. You can find an overview of optics for the two cameras in the Micro Four Thirds Lens Catalog (E-M10 III) and the Four Thirds Lens Catalog (E-620). Mirrorless cameras, such as the Olympus E-M10 III, have moreover the advantage that they have a relatively short flange to focal plane distance and can thus use many lenses from other systems via adapters.

Concerning battery life, the E-M10 III gets 330 shots out of its BLS-50 battery, while the E-620 can take 500 images on a single charge of its BLS-1 power pack.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. In case you want to display and compare another camera duo, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
Olympus E-M10 III» 4.8 in 3.3 in 2.0 in 14.5 oz 330 n Aug 2017 649 i i Olympus E-M10 III
Olympus E-620« 5.1 in 3.7 in 2.4 in 18.4 oz 500 n Feb 2009 699- i Olympus E-620
Olympus E-PL9« » 4.6 in 2.7 in 1.5 in 13.4 oz 350 n Feb 2018 549 i i Olympus E-PL9
Olympus E-PL8« » 4.5 in 2.6 in 1.5 in 12.6 oz 350 n Sep 2016 549- i Olympus E-PL8
Olympus PEN-F« » 4.9 in 2.8 in 1.5 in 15.1 oz 330 n Jan 2016 1,199 i i Olympus PEN-F
Olympus E-M10 II« » 4.7 in 3.3 in 1.9 in 13.8 oz 320 n Aug 2015 799- i Olympus E-M10 II
Olympus E-M10« » 4.7 in 3.2 in 1.8 in 14.0 oz 320 n Jan 2014 699- i Olympus E-M10
Olympus E-PL7« » 4.5 in 2.6 in 1.5 in 12.6 oz 350 n Aug 2014 599- i Olympus E-PL7
Olympus E-P5« » 4.8 in 2.7 in 1.5 in 14.8 oz 330 n May 2013 999- i Olympus E-P5
Olympus E-PL5« » 4.4 in 2.5 in 1.5 in 11.5 oz 360 n Sep 2012 599- i Olympus E-PL5
Olympus E-PL2« » 4.5 in 2.8 in 1.7 in 12.8 oz 280 n Jan 2011 599- i Olympus E-PL2
Olympus E-600« » 5.1 in 3.7 in 2.4 in 18.9 oz 500 n Aug 2009 449- i Olympus E-600
Olympus E-420« » 5.1 in 3.6 in 2.1 in 15.5 oz 500 n Mar 2008 599- i Olympus E-420
Olympus E-520« » 5.4 in 3.6 in 2.7 in 18.9 oz 750 n May 2008 699- i Olympus E-520
Olympus E-410« » 5.1 in 3.6 in 2.1 in 15.3 oz 500 n Mar 2007 699- i Olympus E-410
Olympus E-510« » 5.4 in 3.6 in 2.7 in 19.0 oz 750 n Mar 2007 799- i Olympus E-510
Panasonic GX85« » 4.8 in 2.8 in 1.7 in 15.0 oz 290 n Apr 2016 799 i i Panasonic GX85

Any camera purchase will naturally be influenced heavily by the price. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The E-M10 III was somewhat cheaper (by 7 percent) than the E-620 at launch, but both cameras fall into the same price category. 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.

 

Sensor comparison: Olympus E-M10 III vs Olympus E-620

The size of the sensor inside a digital camera is one of the key determinants 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 tend to be more expensive and lead to bigger and heavier cameras and lenses.

Both cameras under consideration feature a Four Thirds sensor and have a format factor (sometimes also referred to as "crop factor") of 2.0. Within the spectrum of camera sensors, this places the review cameras among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.

In terms of chip-set technology, the E-M10 III uses a more advanced image processing engine (TruePic VIII) than the E-620 (TruePic III+), with benefits for noise reduction, color accuracy, and processing speed.

Olympus E-M10 III and Olympus E-620 sensor measures

While the two cameras under review share the same sensor size, the E-M10 III offers a higher resolution of 15.9 megapixel, compared with 12.2 MP of the E-620. This megapixel advantage translates into a 14 percent gain in linear resolution. On the other hand, these sensor specs imply that the E-M10 III has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.76μm versus 4.29μm for the E-620). In this context, it should be noted, however, that the E-M10 III is much more recent (by 8 years and 6 months) than the E-620, and its sensor will have benefitted from technological advances during this time that compensate for the smaller pixel size. Coming back to sensor resolution, it should be mentioned that the E-M10 III has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

E-M10 III 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. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
Olympus E-M10 III» Four Thirds 15.9 4608 34564K/30p----Olympus E-M10 III
Olympus E-620« Four Thirds 12.2 4032 3024-21.310.353655Olympus E-620
Olympus E-PL9« » Four Thirds 15.9 4608 34564K/30p----Olympus E-PL9
Olympus E-PL8« » Four Thirds 15.9 4608 34561080/30p----Olympus E-PL8
Olympus PEN-F« » Four Thirds 20.2 5184 38881080/60p23.112.489474Olympus PEN-F
Olympus E-M10 II« » Four Thirds 15.9 4608 34561080/60p23.112.584273Olympus E-M10 II
Olympus E-M10« » Four Thirds 15.9 4608 34561080/30p22.812.388472Olympus E-M10
Olympus E-PL7« » Four Thirds 15.9 4608 34561080/30p22.712.487372Olympus E-PL7
Olympus E-P5« » Four Thirds 15.9 4608 34561080/30p22.812.489572Olympus E-P5
Olympus E-PL5« » Four Thirds 15.9 4608 34561080/30p22.812.388972Olympus E-PL5
Olympus E-PL2« » Four Thirds 12.2 4032 3024720/30p21.410.257355Olympus E-PL2
Olympus E-600« » Four Thirds 12.2 4032 3024-21.510.354155Olympus E-600
Olympus E-420« » Four Thirds 10.0 3648 2736-21.510.452756Olympus E-420
Olympus E-520« » Four Thirds 10.0 3648 2736-21.410.454855Olympus E-520
Olympus E-410« » Four Thirds 10.0 3648 2736-21.110.049451Olympus E-410
Olympus E-510« » Four Thirds 10.0 3648 2736-21.210.044252Olympus E-510
Panasonic GX85« » Four Thirds 15.8 4592 34484K/30p22.912.666271Panasonic GX85

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The E-M10 III indeed provides movie recording capabilities, while the E-620 does not. The highest resolution format that the E-M10 III can use is 4K/30p.

 

Feature comparison: Olympus E-M10 III vs Olympus E-620

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the E-M10 III has an electronic viewfinder (2360k 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 table below summarizes some of the other core capabilities of the Olympus E-M10 III and Olympus E-620 in connection with corresponding information for a sample of similar cameras. If you need more detail on the specs, you can find comprehensive listings, for example, in the dpreview camera hub.

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)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec)
Build-in
Flash
(yes/no)
Build-in
Image
Stab
Camera
Model
Olympus E-M10 III»2360 n 3.0 1040 tilting Y 4000 8.6 Y Y Olympus E-M10 III
Olympus E-620«optical n 2.7 230 swivel n 4000 4.0 Y Y Olympus E-620
Olympus E-PL9« »- n 3.0 1040 tilting Y 4000 8.6 Y Y Olympus E-PL9
Olympus E-PL8« »- n 3.0 1037 tilting Y 4000 8.0 n Y Olympus E-PL8
Olympus PEN-F« »2360 n 3.0 1037 swivel Y 8000 10.0 n Y Olympus PEN-F
Olympus E-M10 II« »2360 n 3.0 1040 tilting Y 4000 8.0 Y Y Olympus E-M10 II
Olympus E-M10« »1440 n 3.0 1037 tilting Y 4000 8.0 Y Y Olympus E-M10
Olympus E-PL7« »- n 3.0 1037 tilting Y 4000 8.0 n Y Olympus E-PL7
Olympus E-P5« »- n 3.0 1037 tilting Y 8000 9.0 Y Y Olympus E-P5
Olympus E-PL5« »- n 3.0 460 tilting Y 4000 8.0 n Y Olympus E-PL5
Olympus E-PL2« »- n 3.0 460 fixed n 4000 3.0 Y Y Olympus E-PL2
Olympus E-600« »optical n 2.7 230 swivel n 4000 4.0 Y Y Olympus E-600
Olympus E-420« »optical n 2.7 215 fixed n 4000 3.5 Y n Olympus E-420
Olympus E-520« »optical n 2.7 215 fixed n 4000 3.5 Y Y Olympus E-520
Olympus E-410« »optical n 2.5 215 fixed n 4000 3.0 Y n Olympus E-410
Olympus E-510« »optical n 2.5 215 fixed n 4000 3.0 Y Y Olympus E-510
Panasonic GX85« »2765 n 3.0 1040 tilting Y 4000 8.0 Y Y Panasonic GX85

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The E-M10 III has a touchscreen, while the E-620 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The E-M10 III writes its imaging data to SDXC 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 E-M10 III only has one slot.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
Olympus E-M10 III»Ystereomono--micro2.0Y--Olympus E-M10 III
Olympus E-620«Y-----2.0---Olympus E-620
Olympus E-PL9« »Ystereomono--micro2.0Y-YOlympus E-PL9
Olympus E-PL8« »Ystereomono--micro2.0Y--Olympus E-PL8
Olympus PEN-F« »Ystereomono--micro2.0Y--Olympus PEN-F
Olympus E-M10 II« »Ystereomono--micro2.0Y--Olympus E-M10 II
Olympus E-M10« »Ystereomono--micro2.0Y--Olympus E-M10
Olympus E-PL7« »Ystereomono--micro2.0Y--Olympus E-PL7
Olympus E-P5« »Ystereomono--micro2.0Y--Olympus E-P5
Olympus E-PL5« »Ystereomono--mini2.0---Olympus E-PL5
Olympus E-PL2« »Ystereo---mini2.0---Olympus E-PL2
Olympus E-600« »Y-----2.0---Olympus E-600
Olympus E-420« »Y-----2.0---Olympus E-420
Olympus E-520« »Y-----2.0---Olympus E-520
Olympus E-410« »Y-----2.0---Olympus E-410
Olympus E-510« »Y-----2.0---Olympus E-510
Panasonic GX85« »Ystereomono--micro2.0YY-Panasonic GX85

The E-M10 III is a current model that online retailers, such as amazon, will have in stock. In contrast, the E-620 has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the E-620 was succeeded by the Olympus E-600.

Review summary: Olympus E-M10 III vs Olympus E-620

So what is the bottom line? Which of the two cameras – the Olympus E-M10 III or the Olympus E-620 – has the upper hand? A synthesis of the relative strong points of each of the models is listed below.


Reasons to prefer the Olympus OM-D E-M10 Mark III:

  • More detail: Offers more megapixels (15.9 vs 12.2MP) with a 14% higher linear resolution.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better jpgs: Has a more modern image processing engine (TruePic VIII vs TruePic III+).
  • Broader imaging potential: Can record not only still images but also 4K/30p movies.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • 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 (1040k vs 230k dots).
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Faster burst: Shoots at higher frequency (8.6 vs 4 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (122x84mm vs 130x94mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 111g or 21 percent) and hence easier to carry around.
  • More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
  • Easier file upload: Has wifi build in for automatic backup or image transfer to the web.
  • More modern: Reflects 8 years and 6 months of technical progress since the E-620 launch.


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 swivel screen for odd-angle shots in portrait or landscape orientation.
  • Longer lasting: Gets more shots (500 versus 330) out of a single battery charge.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More heavily discounted: Has been around for much longer (launched in February 2009).

If the count of relative strengths (bullet points above) is taken as a measure, the E-M10 III is the clear winner of the match-up (14 : 6 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.

E-M10 III 14:06 E-620

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it says nothing about, for example, the handling, responsiveness, and overall imaging quality of the E-M10 III and the E-620 in practical situations. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable. This is why expert reviews are important. The table below summarizes the assessments of some of the best known camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). The detailed reviews can be accessed by clicking on the site logo in the table header.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
Olympus E-M10 III»Rec80/1004.5/5-4.5/5 Aug 2017 649 i i Olympus E-M10 III
Olympus E-620«88/10072/1004.5/5rev5/5 Feb 2009 699- i Olympus E-620
Olympus E-PL9« »Rec-4.5/5-4/5 Feb 2018 549 i i Olympus E-PL9
Olympus E-PL8« »--4.5/5-4/5 Sep 2016 549- i Olympus E-PL8
Olympus PEN-F« »-82/1004.5/54.5/55/5 Jan 2016 1,199 i i Olympus PEN-F
Olympus E-M10 II« »HiRec80/1005/55/55/5 Aug 2015 799- i Olympus E-M10 II
Olympus E-M10« »-80/1005/54.5/55/5 Jan 2014 699- i Olympus E-M10
Olympus E-PL7« »Rec-5/54.5/54/5 Aug 2014 599- i Olympus E-PL7
Olympus E-P5« »HiRec78/1004.5/54.5/55/5 May 2013 999- i Olympus E-P5
Olympus E-PL5« »HiRec-4.5/54.5/54.5/5 Sep 2012 599- i Olympus E-PL5
Olympus E-PL2« »83/10071/1004.5/54.5/54.5/5 Jan 2011 599- i Olympus E-PL2
Olympus E-600« »----4.5/5 Aug 2009 449- i Olympus E-600
Olympus E-420« »85/100HiRec4/5rev4.5/5 Mar 2008 599- i Olympus E-420
Olympus E-520« »87/100HiRec4.5/54/54.5/5 May 2008 699- i Olympus E-520
Olympus E-410« »86/100HiRec4/5rev4.5/5 Mar 2007 699- i Olympus E-410
Olympus E-510« »89/100HiRec3.5/5rev4.5/5 Mar 2007 799- i Olympus E-510
Panasonic GX85« »HiRec82/1005/54.5/55/5 Apr 2016 799 i i Panasonic GX85

The above review scores should be interpreted with care, 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 rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, please note that some of the review sites have changed their methodology and reporting over time.

 

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. An an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool. If you cannot find the camera you are interested in, please contact me, and I will try to locate and add the respective data to the application.

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