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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 announced, 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 side-by-side display below illustrates the physical size and weight of the Olympus E-M10 III and the Olympus E-620. Three consecutive perspectives from the front, the top, and the back are presented. All width, height and depth measures are rounded to the nearest millimeter. You can also toggle the display to switch to a percentage comparison if you prefer that the measures are being expressed in relative terms (in this case, the camera on the left side – the E-M10 III – represents the basis for the calculations across all the size and weight measures).

Snapsort 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 table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

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)
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-620« 5.1 in 3.7 in 2.4 in 18.4 oz 500 n Feb 2009 699- i
Olympus E-PL9« » 4.6 in 2.7 in 1.5 in 13.4 oz 350 n Feb 2018 549 i i
Olympus PEN-F« » 4.9 in 2.8 in 1.5 in 15.1 oz 330 n Jan 2016 1,199 i i
Olympus E-PL8« » 4.5 in 2.6 in 1.5 in 12.6 oz 350 n Sep 2016 549- i
Olympus E-M10 II« » 4.7 in 3.3 in 1.9 in 13.8 oz 320 n Aug 2015 799- i
Olympus E-PL7« » 4.5 in 2.6 in 1.5 in 12.6 oz 350 n Aug 2014 599- i
Olympus E-M10« » 4.7 in 3.2 in 1.8 in 14.0 oz 320 n Jan 2014 699- i
Olympus E-PL6« » 4.4 in 2.5 in 1.5 in 11.5 oz 360 n May 2013 599- i
Olympus E-PL5« » 4.4 in 2.5 in 1.5 in 11.5 oz 360 n Sep 2012 599- i
Olympus E-PL2« » 4.5 in 2.8 in 1.7 in 12.8 oz 280 n Jan 2011 599- i
Olympus E-600« » 5.1 in 3.7 in 2.4 in 18.9 oz 500 n Aug 2009 449- i
Olympus E-420« » 5.1 in 3.6 in 2.1 in 15.5 oz 500 n Mar 2008 599- i
Olympus E-520« » 5.4 in 3.6 in 2.7 in 18.9 oz 750 n May 2008 699- i
Olympus E-410« » 5.1 in 3.6 in 2.1 in 15.3 oz 500 n Mar 2007 699- i
Olympus E-510« » 5.4 in 3.6 in 2.7 in 19.0 oz 750 n Mar 2007 799- i
Panasonic GX85« » 4.8 in 2.8 in 1.7 in 15.0 oz 290 n Apr 2016 799 i i

The price is, of course, an important factor in any camera decision. 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. 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: Olympus E-M10 III vs Olympus E-620

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 generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color depth than smaller pixels in a sensor of the same technological generation. 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 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.

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

Consistent information on actual sensor performance is available from DXO Mark for most cameras. 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 table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

Sensor Characteristics
  Camera Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Olympus E-M10 III» Four Thirds 15.9 4608 34564K/30p----
Olympus E-620« Four Thirds 12.2 4032 3024-21.310.353655
Olympus E-PL9« » Four Thirds 15.9 4608 34564K/30p----
Olympus PEN-F« » Four Thirds 20.2 5184 38881080/60p23.112.489474
Olympus E-PL8« » Four Thirds 15.9 4608 34561080/30p----
Olympus E-M10 II« » Four Thirds 15.9 4608 34561080/60p23.112.584273
Olympus E-PL7« » Four Thirds 15.9 4608 34561080/30p22.712.487372
Olympus E-M10« » Four Thirds 15.9 4608 34561080/30p22.812.388472
Olympus E-PL6« » Four Thirds 15.9 4608 34561080/30p----
Olympus E-PL5« » Four Thirds 15.9 4608 34561080/30p22.812.388972
Olympus E-PL2« » Four Thirds 12.2 4032 3024720/30p21.410.257355
Olympus E-600« » Four Thirds 12.2 4032 3024-21.510.354155
Olympus E-420« » Four Thirds 10.0 3648 2736-21.510.452756
Olympus E-520« » Four Thirds 10.0 3648 2736-21.410.454855
Olympus E-410« » Four Thirds 10.0 3648 2736-21.110.049451
Olympus E-510« » Four Thirds 10.0 3648 2736-21.210.044252
Panasonic GX85« » Four Thirds 15.8 4592 34484K/30p22.912.666271

Many modern cameras are not only capable of taking still images, but can also record movies. 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. The full specs-sheets can be found in the camera manual or, for example, in the dpreview camera hub.

Core Features
  Camera 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
Olympus E-M10 III»2360 n 3.0 1040 tilting Y 4000 8.6 Y Y
Olympus E-620«optical n 2.7 230 swivel n 4000 4.0 Y Y
Olympus E-PL9« »- n 3.0 1040 tilting Y 4000 8.6 Y Y
Olympus PEN-F« »2360 n 3.0 1037 swivel Y 8000 10.0 n Y
Olympus E-PL8« »- n 3.0 1037 tilting Y 4000 8.0 n Y
Olympus E-M10 II« »2360 n 3.0 1040 tilting Y 4000 8.0 Y Y
Olympus E-PL7« »- n 3.0 1037 tilting Y 4000 8.0 n Y
Olympus E-M10« »1440 n 3.0 1037 tilting Y 4000 8.0 Y Y
Olympus E-PL6« »- n 3.0 460 tilting Y 4000 8.0 n Y
Olympus E-PL5« »- n 3.0 460 tilting Y 4000 8.0 n Y
Olympus E-PL2« »- n 3.0 460 fixed n 4000 3.0 Y Y
Olympus E-600« »optical n 2.7 230 swivel n 4000 4.0 Y Y
Olympus E-420« »optical n 2.7 215 fixed n 4000 3.5 Y n
Olympus E-520« »optical n 2.7 215 fixed n 4000 3.5 Y Y
Olympus E-410« »optical n 2.5 215 fixed n 4000 3.0 Y n
Olympus E-510« »optical n 2.5 215 fixed n 4000 3.0 Y Y
Panasonic GX85« »2765 n 3.0 1040 tilting Y 4000 8.0 Y Y

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 how do things add up? Is there a clear favorite between the Olympus E-M10 III and the Olympus E-620? 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.
  • 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.
  • 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.
  • 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 E-M10 III is the clear winner of the match-up (12 : 5 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera.

E-M10 III 12:05 E-620

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 E-M10 III or the E-620 handle or perform in practice. 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 where reviews by experts come in. The table below summarizes the assessments of some of the best known camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). You can find the full text of the reviews by clicking on the site logo in the table header.

Review scores
  Camera cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Olympus E-M10 III»Rec80/1004.5/5-4.5/5 Aug 2017 649 i i
Olympus E-620«88/10072/1004.5/5rev5/5 Feb 2009 699- i
Olympus E-PL9« »--4.5/5-4/5 Feb 2018 549 i i
Olympus PEN-F« »-82/1004.5/54.5/55/5 Jan 2016 1,199 i i
Olympus E-PL8« »--4.5/5-4/5 Sep 2016 549- i
Olympus E-M10 II« »HiRec80/1005/55/55/5 Aug 2015 799- i
Olympus E-PL7« »Rec-5/54.5/54/5 Aug 2014 599- i
Olympus E-M10« »-80/1005/54.5/55/5 Jan 2014 699- i
Olympus E-PL6« »----- May 2013 599- i
Olympus E-PL5« »HiRec-4.5/54.5/54.5/5 Sep 2012 599- i
Olympus E-PL2« »83/10071/1004.5/54.5/54.5/5 Jan 2011 599- i
Olympus E-600« »----4.5/5 Aug 2009 449- i
Olympus E-420« »85/100HiRec4/5rev4.5/5 Mar 2008 599- i
Olympus E-520« »87/100HiRec4.5/54/54.5/5 May 2008 699- i
Olympus E-410« »86/100HiRec4/5rev4.5/5 Mar 2007 699- i
Olympus E-510« »89/100HiRec3.5/5rev4.5/5 Mar 2007 799- i
Panasonic GX85« »HiRec82/1005/54.5/55/5 Apr 2016 799 i i

Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. 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, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

 

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 use the search menu below. 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 the camera you are interested in is not available, kindly get in touch, and I will try to locate and add the respective data to the application.

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