Olympus E-620 vs E-M10 IV
The Olympus E-620 and the Olympus OM-D E-M10 Mark IV are two digital cameras that were revealed to the public, respectively, in February 2009 and August 2020. The E-620 is a DSLR, while the E-M10 IV is a mirrorless interchangeable lens camera. Both cameras are equipped with a Four Thirds sensor. The E-620 has a resolution of 12.2 megapixels, whereas the E-M10 IV provides 20.2 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Check E-620 offers at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus E-620 and the Olympus OM-D E-M10 Mark IV? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.
Body comparison
An illustration of the physical size and weight of the Olympus E-620 and the Olympus E-M10 IV is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth measures are rounded to the nearest millimeter.
The E-M10 IV can be obtained in two different colors (black, silver), while the E-620 is only available in black.



If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-M10 IV is notably smaller (16 percent) than the Olympus E-620. Moreover, the E-M10 IV is markedly lighter (26 percent) than the E-620. In this context, it is worth noting that neither the E-620 nor the E-M10 IV 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 compare the optics available for the two cameras in the Four Thirds Lens Catalog (E-620) and the Micro Four Thirds Lens Catalog (E-M10 IV). Mirrorless cameras, such as the E-M10 IV, 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 E-M10 IV can take 360 images on a single charge of its Olympus BLS-50 power pack. The power pack in the E-M10 IV 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.

| Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price |
Street Price |
||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Olympus E-620 | 130 mm | 94 mm | 60 mm | 521 g | 500 | n | Feb 2009 | US$ 699 | ebay.com | |
| 2. | Olympus E-M10 IV | 122 mm | 84 mm | 49 mm | 383 g | 360 | n | Aug 2020 | US$ 699 | amazon.com | |
| 3. | Olympus E-30 | 142 mm | 108 mm | 75 mm | 701 g | 750 | n | Nov 2008 | US$ 1 299 | ebay.com | |
| 4. | Olympus E-410 | 130 mm | 91 mm | 53 mm | 435 g | 500 | n | Mar 2007 | US$ 699 | ebay.com | |
| 5. | Olympus E-420 | 130 mm | 91 mm | 53 mm | 440 g | 500 | n | Mar 2008 | US$ 599 | ebay.com | |
| 6. | Olympus E-450 | 130 mm | 91 mm | 53 mm | 440 g | 500 | n | Mar 2009 | US$ 499 | ebay.com | |
| 7. | Olympus E-510 | 136 mm | 92 mm | 68 mm | 538 g | 750 | n | Mar 2007 | US$ 799 | ebay.com | |
| 8. | Olympus E-520 | 136 mm | 92 mm | 68 mm | 535 g | 750 | n | May 2008 | US$ 699 | ebay.com | |
| 9. | Olympus E-600 | 130 mm | 94 mm | 60 mm | 535 g | 500 | n | Aug 2009 | US$ 449 | ebay.com | |
| 10. | Olympus E-M10 | 119 mm | 82 mm | 46 mm | 396 g | 320 | n | Jan 2014 | US$ 699 | ebay.com | |
| 11. | Olympus E-M10 II | 120 mm | 83 mm | 47 mm | 390 g | 320 | n | Aug 2015 | US$ 649 | ebay.com | |
| 12. | Olympus E-M10 III | 122 mm | 84 mm | 50 mm | 410 g | 330 | n | Aug 2017 | US$ 649 | ebay.com | |
| 13. | Olympus E-P1 | 121 mm | 70 mm | 36 mm | 355 g | 300 | n | Jun 2009 | US$ 799 | ebay.com | |
| 14. | Olympus E-P2 | 121 mm | 70 mm | 36 mm | 355 g | 300 | n | Nov 2009 | US$ 799 | ebay.com | |
| 15. | Olympus E-P7 | 118 mm | 69 mm | 38 mm | 337 g | 360 | n | Jun 2021 | US$ 799 | amazon.com | |
| 16. | Olympus E-PL1 | 115 mm | 72 mm | 42 mm | 334 g | 290 | n | Feb 2010 | US$ 599 | ebay.com | |
| 17. | Olympus E-PL10 | 117 mm | 68 mm | 39 mm | 380 g | 350 | n | Oct 2019 | US$ 599 | ebay.com | |
| Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders. | |||||||||||
Any camera decision 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 two cameras under review were launched at the same price and fall into the same market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
Sensor comparison
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. 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.
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.
Technology-wise, the E-M10 IV 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.

While the two cameras under review share the same sensor size, the E-M10 IV offers a higher resolution of 20.2 megapixels, compared with 12.2 MP of the E-620. This megapixels advantage translates into a 29 percent gain in linear resolution. On the other hand, these sensor specs imply that the E-M10 IV has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.34μm versus 4.29μm for the E-620). However, it should be noted that the E-M10 IV is much more recent (by 11 years and 5 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 IV has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Olympus E-M10 IV implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the E-M10 IV for good quality output (200 dots per inch) amounts to 25.9 x 19.4 inches or 65.8 x 49.4 cm, for very good quality (250 dpi) 20.7 x 15.6 inches or 52.7 x 39.5 cm, and for excellent quality (300 dpi) 17.3 x 13 inches or 43.9 x 32.9 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 Olympus E-620 has a native sensitivity range from ISO 100 to ISO 3200. The corresponding ISO settings for the Olympus OM-D E-M10 Mark IV are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 100-25600.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

| 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 | 3024 | none | 21.3 | 10.3 | 536 | 55 | |
| 2. | Olympus E-M10 IV | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.3 | 13.2 | 1402 | 76 | |
| 3. | Olympus E-30 | Four Thirds | 12.2 | 4032 | 3024 | none | 21.3 | 10.4 | 530 | 55 | |
| 4. | Olympus E-410 | Four Thirds | 10.0 | 3648 | 2736 | none | 21.1 | 10.0 | 494 | 51 | |
| 5. | Olympus E-420 | Four Thirds | 10.0 | 3648 | 2736 | none | 21.5 | 10.4 | 527 | 56 | |
| 6. | Olympus E-450 | Four Thirds | 10.0 | 3648 | 2736 | none | 21.5 | 10.5 | 512 | 56 | |
| 7. | Olympus E-510 | Four Thirds | 10.0 | 3648 | 2736 | none | 21.2 | 10.0 | 442 | 52 | |
| 8. | Olympus E-520 | Four Thirds | 10.0 | 3648 | 2736 | none | 21.4 | 10.4 | 548 | 55 | |
| 9. | Olympus E-600 | Four Thirds | 12.2 | 4032 | 3024 | none | 21.5 | 10.3 | 541 | 55 | |
| 10. | Olympus E-M10 | Four Thirds | 15.9 | 4608 | 3456 | 1080/30p | 22.8 | 12.3 | 884 | 72 | |
| 11. | Olympus E-M10 II | Four Thirds | 15.9 | 4608 | 3456 | 1080/60p | 23.1 | 12.5 | 842 | 73 | |
| 12. | Olympus E-M10 III | Four Thirds | 15.9 | 4608 | 3456 | 4K/30p | 23.1 | 12.8 | 1120 | 74 | |
| 13. | Olympus E-P1 | Four Thirds | 12.2 | 4032 | 3024 | 720/30p | 21.4 | 10.4 | 536 | 55 | |
| 14. | Olympus E-P2 | Four Thirds | 12.2 | 4032 | 3024 | 720/30p | 21.5 | 10.4 | 505 | 56 | |
| 15. | Olympus E-P7 | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.4 | 13.3 | 1494 | 77 | |
| 16. | Olympus E-PL1 | Four Thirds | 12.2 | 4032 | 3024 | 720/30p | 21.5 | 10.1 | 487 | 54 | |
| 17. | Olympus E-PL10 | Four Thirds | 15.9 | 4608 | 3456 | 4K/30p | 23.3 | 13.1 | 1324 | 76 | |
| Note: DXO values in italics represent estimates based on sensor size and age. | |||||||||||
Many modern cameras are not only capable of taking still images, but can also record movies. The E-M10 IV indeed provides for movie recording, while the E-620 does not. The highest resolution format that the E-M10 IV can use is 4K/30p.
Feature comparison
Beyond body and sensor, cameras can and do differ across a range of features. For example, the E-M10 IV 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 viewfinder in the E-M10 IV 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 E-M10 IV has a higher magnification (0.62x vs 0.48x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The following table reports on some other key feature differences and similarities of the Olympus E-620, the Olympus E-M10 IV, and comparable cameras.

| 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-620 | optical | n | 2.7 / 230 | swivel | n | 1/4000s | 4.0/s | Y | Y | |
| 2. | Olympus E-M10 IV | 2360 | n | 3.0 / 1040 | tilting | Y | 1/4000s | 15.0/s | Y | Y | |
| 3. | Olympus E-30 | optical | Y | 2.7 / 230 | swivel | n | 1/8000s | 5.0/s | Y | Y | |
| 4. | Olympus E-410 | optical | n | 2.5 / 215 | fixed | n | 1/4000s | 3.0/s | Y | n | |
| 5. | Olympus E-420 | optical | n | 2.7 / 215 | fixed | n | 1/4000s | 3.5/s | Y | n | |
| 6. | Olympus E-450 | optical | n | 2.7 / 215 | fixed | n | 1/4000s | 3.5/s | Y | n | |
| 7. | Olympus E-510 | optical | n | 2.5 / 215 | fixed | n | 1/4000s | 3.0/s | Y | Y | |
| 8. | Olympus E-520 | optical | n | 2.7 / 215 | fixed | n | 1/4000s | 3.5/s | Y | Y | |
| 9. | Olympus E-600 | optical | n | 2.7 / 230 | swivel | n | 1/4000s | 4.0/s | Y | Y | |
| 10. | Olympus E-M10 | 1440 | n | 3.0 / 1037 | tilting | Y | 1/4000s | 8.0/s | Y | Y | |
| 11. | Olympus E-M10 II | 2360 | n | 3.0 / 1040 | tilting | Y | 1/4000s | 8.0/s | Y | Y | |
| 12. | Olympus E-M10 III | 2360 | n | 3.0 / 1040 | tilting | Y | 1/4000s | 8.6/s | Y | Y | |
| 13. | Olympus E-P1 | none | n | 3.0 / 230 | fixed | n | 1/4000s | 3.0/s | n | Y | |
| 14. | Olympus E-P2 | optional | n | 3.0 / 230 | fixed | n | 1/4000s | 3.0/s | n | Y | |
| 15. | Olympus E-P7 | none | n | 3.0 / 1040 | tilting | Y | 1/4000s | 8.7/s | Y | Y | |
| 16. | Olympus E-PL1 | optional | n | 2.7 / 230 | fixed | n | 1/2000s | 3.0/s | Y | Y | |
| 17. | Olympus E-PL10 | none | n | 3.0 / 1040 | tilting | Y | 1/4000s | 8.6/s | Y | Y | |
| Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one. | |||||||||||
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The E-M10 IV has a touchscreen, while the E-620 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.
Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.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 E-M10 IV 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 Olympus E-M10 IV 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 E-M10 IV uses SDXC cards. The E-620 features dual card slots, which can be very useful in case a memory card fails. In contrast, the E-M10 IV 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 Olympus E-620 and Olympus OM-D E-M10 Mark IV and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

| Camera Model |
Hotshoe Port |
Internal Mic / Speaker |
Microphone Port |
Headphone Port |
HDMI Port |
USB Port |
WiFi Support |
NFC Support |
Bluetooth Support |
||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Olympus E-620 | Y | - / - | - | - | - | 2.0 | - | - | - | |
| 2. | Olympus E-M10 IV | Y | stereo / mono | - | - | micro | 2.0 | Y | - | Y | |
| 3. | Olympus E-30 | Y | - / - | - | - | - | 2.0 | - | - | - | |
| 4. | Olympus E-410 | Y | - / - | - | - | - | 2.0 | - | - | - | |
| 5. | Olympus E-420 | Y | - / - | - | - | - | 2.0 | - | - | - | |
| 6. | Olympus E-450 | Y | - / - | - | - | - | 2.0 | - | - | - | |
| 7. | Olympus E-510 | Y | - / - | - | - | - | 2.0 | - | - | - | |
| 8. | Olympus E-520 | Y | - / - | - | - | - | 2.0 | - | - | - | |
| 9. | Olympus E-600 | Y | - / - | - | - | - | 2.0 | - | - | - | |
| 10. | Olympus E-M10 | Y | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
| 11. | Olympus E-M10 II | Y | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
| 12. | Olympus E-M10 III | Y | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
| 13. | Olympus E-P1 | Y | stereo / - | - | - | mini | 2.0 | - | - | - | |
| 14. | Olympus E-P2 | Y | stereo / - | - | - | mini | 2.0 | - | - | - | |
| 15. | Olympus E-P7 | Y | stereo / mono | - | - | micro | 2.0 | Y | - | Y | |
| 16. | Olympus E-PL1 | Y | stereo / - | - | - | mini | 2.0 | - | - | - | |
| 17. | Olympus E-PL10 | Y | stereo / mono | - | - | micro | 2.0 | Y | - | Y |
It is notable that the E-M10 IV 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.
The E-M10 IV is a recent model that features in the current product line-up of Olympus. In contrast, the E-620 has been discontinued (but 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. Further information on the features and operation of the E-620 and E-M10 IV can be found, respectively, in the Olympus E-620 Manual (free pdf) or the online Olympus E-M10 IV Manual.
Review summary
So how do things add up? Which of the two cameras – the Olympus E-620 or the Olympus E-M10 IV – 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.
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.
- Longer lasting: Can take more shots (500 versus 360) on 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 available for much longer (launched in February 2009).
Reasons to prefer the Olympus OM-D E-M10 Mark IV:
- More detail: Has more megapixels (20.2 vs 12.2MP), which boosts linear resolution by 29%.
- 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 capture not only stills but also 4K/30p video.
- 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 (0.62x 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 (1040k vs 230k dots).
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- Faster burst: Shoots at higher frequency (15 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.
- More compact: Is smaller (122x84mm vs 130x94mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 138g or 26 percent) and is thus easier to take along.
- Easier travel charging: Can be conveniently charged via its USB port.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- 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 11 years and 5 months of technical progress since the E-620 launch.
If the count of individual advantages (bullet points above) is taken as a guide, the E-M10 IV is the clear winner of the contest (20 : 6 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. 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.
How about other alternatives? Do the specifications of the Olympus E-620 and the Olympus E-M10 IV 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 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 E-620 or the E-M10 IV. 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.

| Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price |
Street Price |
||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Olympus E-620 | 3/5 | 88/100 | .. | 72/100 | 4.5/5 | 5/5 | Feb 2009 | US$ 699 | ebay.com | |
| 2. | Olympus E-M10 IV | 4.5/5 | .. | 5/5 | 81/100 | 4.5/5 | 4.5/5 | Aug 2020 | US$ 699 | amazon.com | |
| 3. | Olympus E-30 | .. | .. | .. | 71/100 | 4.5/5 | 4/5 | Nov 2008 | US$ 1 299 | ebay.com | |
| 4. | Olympus E-410 | .. | 86/100 | .. | + + | 4/5 | 4.5/5 | Mar 2007 | US$ 699 | ebay.com | |
| 5. | Olympus E-420 | .. | 85/100 | .. | + + | 4/5 | 4.5/5 | Mar 2008 | US$ 599 | ebay.com | |
| 6. | Olympus E-450 | .. | .. | .. | .. | 4/5 | 4/5 | Mar 2009 | US$ 499 | ebay.com | |
| 7. | Olympus E-510 | .. | 89/100 | .. | + + | 3.5/5 | 4.5/5 | Mar 2007 | US$ 799 | ebay.com | |
| 8. | Olympus E-520 | .. | 87/100 | .. | + + | 4.5/5 | 4.5/5 | May 2008 | US$ 699 | ebay.com | |
| 9. | Olympus E-600 | .. | .. | .. | .. | .. | 4.5/5 | Aug 2009 | US$ 449 | ebay.com | |
| 10. | Olympus E-M10 | 4/5 | .. | .. | 80/100 | 5/5 | 5/5 | Jan 2014 | US$ 699 | ebay.com | |
| 11. | Olympus E-M10 II | 4.5/5 | + + | .. | 80/100 | 5/5 | 5/5 | Aug 2015 | US$ 649 | ebay.com | |
| 12. | Olympus E-M10 III | .. | + | 5/5 | 80/100 | 4.5/5 | 4.5/5 | Aug 2017 | US$ 649 | ebay.com | |
| 13. | Olympus E-P1 | .. | + | .. | 66/100 | 4/5 | 4.5/5 | Jun 2009 | US$ 799 | ebay.com | |
| 14. | Olympus E-P2 | 3/5 | + | .. | 69/100 | 4/5 | 4.5/5 | Nov 2009 | US$ 799 | ebay.com | |
| 15. | Olympus E-P7 | 4/5 | .. | 4.5/5 | .. | .. | 4.5/5 | Jun 2021 | US$ 799 | amazon.com | |
| 16. | Olympus E-PL1 | .. | 86/100 | .. | 69/100 | 4/5 | 4.5/5 | Feb 2010 | US$ 599 | ebay.com | |
| 17. | Olympus E-PL10 | .. | .. | 4/5 | 77/100 | .. | 4/5 | Oct 2019 | US$ 599 | ebay.com | |
| Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. | |||||||||||
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. Thus, a score needs to be put into the context of the launch date and the launch price 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.

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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: Olympus E-620 vs Olympus E-M10 IV
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 Model | Olympus E-620 | Olympus E-M10 IV |
|---|---|---|
| Camera Type | Digital single lens reflex | Mirrorless system camera |
| Camera Lens | Four Thirds lenses | Micro Four Thirds lenses |
| Launch Date | February 2009 | August 2020 |
| Launch Price | USD 699 | USD 699 |
| Sensor Specs | Olympus E-620 | Olympus E-M10 IV |
| Sensor Technology | CMOS | CMOS |
| Sensor Format | Four Thirds Sensor | Four Thirds Sensor |
| Sensor Size | 17.3 x 13.0 mm | 17.3 x 13.0 mm |
| Sensor Area | 224.9 mm2 | 224.9 mm2 |
| Sensor Diagonal | 21.6 mm | 21.6 mm |
| Crop Factor | 2.0x | 2.0x |
| Sensor Resolution | 12.2 Megapixels | 20.2 Megapixels |
| Image Resolution | 4032 x 3024 pixels | 5184 x 3888 pixels |
| Pixel Pitch | 4.29 μm | 3.34 μm |
| Pixel Density | 5.42 MP/cm2 | 8.96 MP/cm2 |
| Moiré control | Anti-Alias filter | no AA filter |
| Movie Capability | no Video | 4K/30p Video |
| ISO Setting | 100 - 3,200 ISO | 200 - 25,600 ISO |
| ISO Boost | no Enhancement | 100 - 25,600 ISO |
| Image Processor | TruePic III+ | TruePic VIII |
| DXO Sensor Quality (score) | 55 | .. |
| DXO Color Depth (bits) | 21.3 | .. |
| DXO Dynamic Range (EV) | 10.3 | .. |
| DXO Low Light (ISO) | 536 | .. |
| Screen Specs | Olympus E-620 | Olympus E-M10 IV |
| Viewfinder Type | Optical viewfinder | Electronic viewfinder |
| Viewfinder Field of View | 95% | 100% |
| Viewfinder Magnification | 0.48x | 0.62x |
| Viewfinder Resolution | 2360k dots | |
| LCD Framing | Live View | Live View |
| Rear LCD Size | 2.7inch | 3.0inch |
| LCD Resolution | 230k dots | 1040k dots |
| LCD Attachment | Swivel screen | Tilting screen |
| Touch Input | no Touchscreen | Touchscreen |
| Shooting Specs | Olympus E-620 | Olympus E-M10 IV |
| Focus System | Phase-detect AF | Contrast-detect AF |
| Manual Focusing Aid | no Peaking Feature | Focus Peaking |
| Max Shutter Speed (mechanical) | 1/4000s | 1/4000s |
| Continuous Shooting | 4 shutter flaps/s | 15 shutter flaps/s |
| Electronic Shutter | no E-Shutter | up to 1/16000s |
| Time-Lapse Photography | no Intervalometer | Intervalometer built-in |
| Image Stabilization | In-body stabilization | In-body stabilization |
| Fill Flash | Built-in Flash | Built-in Flash |
| Storage Medium | CF or XD cards | SDXC cards |
| Single or Dual Card Slots | Dual card slots | Single card slot |
| Connectivity Specs | Olympus E-620 | Olympus E-M10 IV |
| External Flash | Hotshoe | Hotshoe |
| USB Connector | USB 2.0 | USB 2.0 |
| HDMI Port | no HDMI | micro HDMI |
| Wifi Support | no Wifi | Wifi built-in |
| Bluetooth Support | no Bluetooth | Bluetooth built-in |
| Body Specs | Olympus E-620 | Olympus E-M10 IV |
| Battery Type | Olympus BLS-1 | Olympus BLS-50 |
| Battery Life (CIPA) | 500 shots per charge | 360 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) |
122 x 84 x 49 mm (4.8 x 3.3 x 1.9 in) |
| Camera Weight | 521 g (18.4 oz) | 383 g (13.5 oz) |

Check E-620 offers at
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Check E-M10 IV price at
amazon.com
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