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Olympus E-M1 vs OM System OM-3

The Olympus OM-D E-M1 and the OM System OM-3 are two enthusiast cameras that were officially introduced, respectively, in September 2013 and February 2025. Both the E-M1 and the OM-3 are mirrorless interchangeable lens cameras that are equipped with a Four Thirds sensor. The Olympus has a resolution of 15.9 megapixels, whereas the OM System provides 20.2 MP.

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

Headline Specifications
Olympus E-M1
versus
OM System OM-3
Olympus E-M1   OM System OM-3
Mirrorless system camera Mirrorless system camera
Micro Four Thirds lenses Micro Four Thirds lenses
15.9 MP – Four Thirds sensor 20.2 MP – Four Thirds sensor
1080/30p Video 4K/60p Video
ISO 200-25,600 ISO 80-25,600 (80 - 102,400)
Electronic viewfinder (2360k dots) Electronic viewfinder (2360k dots)
3.0" LCD – 1037k dots 3.0" LCD – 1640k dots
Tilting touchscreen Swivel touchscreen
10 shutter flaps per second 6 shutter flaps per second
In-body stabilizationIn-body stabilization
Weathersealed bodyWeathersealed body
350 shots per battery charge590 shots per battery charge
130 x 94 x 63 mm, 497 g 139 x 89 x 46 mm, 496 g
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Check OM-3 price at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus OM-D E-M1 and the OM System OM-3? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

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Body comparison

The physical size and weight of the Olympus E-M1 and the OM System OM-3 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.

Both cameras are available in two different colors (black, silver).

Size Olympus E-M1 vs OM System OM-3
Compare E-M1 versus OM-3 top
Comparison E-M1 or OM-3 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the OM System OM-3 is somewhat larger (1 percent) than the Olympus E-M1. However, the OM-3 is slightly lighter (0 percent) than the E-M1. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

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. In this particular case, both cameras feature the same lens mount, so that they can use the same lenses. You can compare the optics available in the Micro Four Thirds Lens Catalog. Mirrorless cameras, such as the two under consideration, have the additional advantage of having a short flange to focal plane distance, which makes it possible to mount many lenses from other systems onto the camera via adapters.

Concerning battery life, the E-M1 gets 350 shots out of its Olympus BLN-1 battery, while the OM-3 can take 590 images on a single charge of its OM System BLX-1 power pack. The power pack in the OM-3 can be charged via the USB port, which can be very convenient when travelling.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
1.
 
Olympus E-M1 130 mm 94 mm 63 mm 497 g 350 Y Sep 2013 US$ 1 399ebay.com
2.
 
OM System OM-3 139 mm 89 mm 46 mm 496 g 590 Y Feb 2025 US$ 1 999 amazon.com
3.
 
Olympus E-M1 II 134 mm 91 mm 67 mm 574 g 440 Y Sep 2016 US$ 1 999ebay.com
4.
 
Olympus E-M1 III 134 mm 91 mm 69 mm 580 g 420 Y Feb 2020 US$ 1 799ebay.com
5.
 
Olympus E-M5 122 mm 89 mm 43 mm 425 g 360 Y Feb 2012 US$ 1 299ebay.com
6.
 
Olympus E-M5 II 124 mm 85 mm 45 mm 469 g 310 Y Feb 2015 US$ 1 099ebay.com
7.
 
Olympus E-P5 122 mm 69 mm 37 mm 420 g 330 n May 2013 US$ 999ebay.com
8.
 
Olympus E-PL5 111 mm 64 mm 38 mm 325 g 360 n Sep 2012 US$ 599ebay.com
9.
 
Olympus E-PL7 115 mm 67 mm 38 mm 357 g 350 n Aug 2014 US$ 599ebay.com
10.
 
Olympus E-PM2 110 mm 64 mm 34 mm 269 g 360 n Sep 2012 US$ 499ebay.com
11.
 
Olympus PEN-F 125 mm 72 mm 37 mm 427 g 330 n Jan 2016 US$ 1 199ebay.com
12.
 
OM System OM-1 135 mm 92 mm 73 mm 599 g 520 Y Feb 2022 US$ 2 199ebay.com
13.
 
OM System OM-1 II 135 mm 92 mm 73 mm 599 g 500 Y Jan 2024 US$ 2 399 amazon.com
14.
 
OM System OM-5 II 125 mm 85 mm 50 mm 414 g 310 Y Jun 2025 US$ 1 199 amazon.com
15.
 
Panasonic GH3 133 mm 93 mm 82 mm 550 g 540 Y Sep 2012 US$ 1 299ebay.com
16.
 
Panasonic GH4 133 mm 93 mm 84 mm 560 g 500 Y Feb 2014 US$ 1 499ebay.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 retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The E-M1 was launched at a markedly lower price (by 30 percent) than the OM-3, which puts it into a different market segment. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Sensor comparison

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixels in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors 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 OM-3 uses a more advanced image processing engine (TruePic X) than the E-M1 (TruePIC VII), with benefits for noise reduction, color accuracy, and processing speed.

Olympus E-M1 and OM System OM-3 sensor measures

While the two cameras under review share the same sensor size, the OM-3 offers a higher resolution of 20.2 megapixels, compared with 15.9 MP of the E-M1. This megapixels advantage translates into a 13 percent gain in linear resolution. On the other hand, these sensor specs imply that the OM-3 has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.34μm versus 3.76μm for the E-M1). However, it should be noted that the OM-3 is much more recent (by 11 years and 4 months) than the E-M1, 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 neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.

The resolution advantage of the OM System OM-3 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the OM-3 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-M1 are 23 x 17.3 inches or 58.5 x 43.9 cm for good quality, 18.4 x 13.8 inches or 46.8 x 35.1 cm for very good quality, and 15.4 x 11.5 inches or 39 x 29.3 cm for excellent quality prints.

Unlike the E-M1, the OM-3 has the capacity to capture high quality composite images (80MP) 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 OM-D E-M1 has a native sensitivity range from ISO 200 to ISO 25600, which can be extended to ISO 100-25600. The corresponding ISO settings for the OM System OM-3 are ISO 80 to ISO 25600, with the possibility to increase the ISO range to 80-102400.

In terms of underlying technology, the E-M1 is build around a CMOS sensor, while the OM-3 uses a Stacked 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-M1 versus OM-3 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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"). The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

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Sensor Characteristics
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Olympus E-M1 Four Thirds 15.9 4608 34561080/30p23.012.775773
2.
 
OM System OM-3 Four Thirds 20.2 5184 38884K/60p23.413.7185278
3.
 
Olympus E-M1 II Four Thirds 20.2 5184 38884K/30p23.712.8131280
4.
 
Olympus E-M1 III Four Thirds 20.2 5184 38884K/30p23.313.1135676
5.
 
Olympus E-M5 Four Thirds 15.9 4608 34561080/60i22.812.382671
6.
 
Olympus E-M5 II Four Thirds 15.9 4608 34561080/60p23.012.584273
7.
 
Olympus E-P5 Four Thirds 15.9 4608 34561080/30p22.812.489572
8.
 
Olympus E-PL5 Four Thirds 15.9 4608 34561080/30p22.812.388972
9.
 
Olympus E-PL7 Four Thirds 15.9 4608 34561080/30p22.712.487372
10.
 
Olympus E-PM2 Four Thirds 15.9 4608 34561080/30p22.712.293272
11.
 
Olympus PEN-F Four Thirds 20.2 5184 38881080/60p23.112.489474
12.
 
OM System OM-1 Four Thirds 20.2 5184 38884K/60p23.413.4155377
13.
 
OM System OM-1 II Four Thirds 20.2 5184 38884K/60p23.413.6174978
14.
 
OM System OM-5 II Four Thirds 20.2 5184 38884K/30p23.413.7188978
15.
 
Panasonic GH3 Four Thirds 15.9 4608 34561080/60p22.712.481271
16.
 
Panasonic GH4 Four Thirds 15.9 4608 34564K/30p23.212.879174
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 two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the OM-3 provides a better video resolution than the E-M1. It can shoot movie footage at 4K/60p, while the Olympus is limited to 1080/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The E-M1 and the OM-3 are similar in the sense that both feature an electronic viewfinder, which is helpful when framing images in bright sunlight. Moreover, their viewfinders offer an identical resolution of 2360k dots. The table below summarizes some of the other core capabilities of the Olympus E-M1 and OM System OM-3 in connection with corresponding information for a sample of similar cameras.

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Core Features
  empty Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Olympus E-M12360 n3.0 / 1037 tilting Y 1/8000s 10.0/s n Y
2.
 
OM System OM-32360 n3.0 / 1640 swivel Y 1/8000s 6.0/s n Y
3.
 
Olympus E-M1 II2360 n3.0 / 1037 swivel Y 1/8000s 18.0/s n Y
4.
 
Olympus E-M1 III2360 n3.0 / 1037 swivel Y 1/8000s 18.0/s n Y
5.
 
Olympus E-M51440 n3.0 / 610 tilting Y 1/4000s 9.0/s n Y
6.
 
Olympus E-M5 II2360 n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
7.
 
Olympus E-P5optional n3.0 / 1037 tilting Y 1/8000s 9.0/s Y Y
8.
 
Olympus E-PL5optional n3.0 / 460 tilting Y 1/4000s 8.0/s n Y
9.
 
Olympus E-PL7optional n3.0 / 1037 tilting Y 1/4000s 8.0/s n Y
10.
 
Olympus E-PM2optional n3.0 / 460 fixed Y 1/4000s 8.0/s n Y
11.
 
Olympus PEN-F2360 n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
12.
 
OM System OM-15760 n3.0 / 1640 swivel Y 1/8000s 10.0/s n Y
13.
 
OM System OM-1 II5760 n3.0 / 1640 swivel Y 1/8000s 10.0/s n Y
14.
 
OM System OM-5 II2360 n3.0 / 1040 swivel Y 1/8000s 10.0/s n Y
15.
 
Panasonic GH31746 n3.0 / 614 swivel Y 1/4000s 6.0/s Y n
16.
 
Panasonic GH42359 n3.0 / 1036 swivel Y 1/8000s 12.0/s Y n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
The OM-3 has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the E-M1 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, both cameras under consideration feature an 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-M1 and the OM System OM-3 both have 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.

Concerning the storage of imaging data, both the E-M1 and the OM-3 write their files to SDXC cards. The OM-3 supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the E-M1 can use UHS-I cards (up to 104 MB/s).

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 OM-D E-M1 and OM System OM-3 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Olympus E-M1Ystereo / monoY-micro2.0Y--
2.
 
OM System OM-3Ystereo / monoYYmicro3.0Y-Y
3.
 
Olympus E-M1 IIYstereo / monoYYmicro3.0Y--
4.
 
Olympus E-M1 IIIYstereo / monoYYmicro3.1Y-Y
5.
 
Olympus E-M5Ystereo / mono--mini2.0---
6.
 
Olympus E-M5 IIYstereo / monoY-micro2.0Y--
7.
 
Olympus E-P5Ystereo / mono--micro2.0Y--
8.
 
Olympus E-PL5Ystereo / mono--mini2.0---
9.
 
Olympus E-PL7Ystereo / mono--micro2.0Y--
10.
 
Olympus E-PM2Ystereo / mono--mini2.0---
11.
 
Olympus PEN-FYstereo / mono--micro2.0Y--
12.
 
OM System OM-1Ystereo / monoYYmicro3.0Y-Y
13.
 
OM System OM-1 IIYstereo / monoYYmicro3.0Y-Y
14.
 
OM System OM-5 IIYstereo / monoY-micro2.0Y-Y
15.
 
Panasonic GH3Ystereo / monoYYmini2.0Y--
16.
 
Panasonic GH4Ystereo / monoYYmicro2.0YY-

It is notable that the OM-3 has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The E-M1 lacks such a headphone port.

Studio photographers will appreciate that the Olympus E-M1 (unlike the OM-3) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The OM-3 is a recent model that features in the current product line-up of OM System. In contrast, the E-M1 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the E-M1 was succeeded by the Olympus E-M1 II. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Olympus and OM System websites.

Review summary

So how do things add up? Is there a clear favorite between the Olympus E-M1 and the OM System OM-3? Which camera is better? The listing below highlights the relative strengths of the two models.

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Advantages of the Olympus OM-D E-M1:

  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.74x vs 0.69x).
  • Faster burst: Shoots at higher frequency (10 vs 6 flaps/sec) to capture the decisive moment.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • More affordable: Was introduced into a lower priced category (30 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in September 2013).

ilogo

Reasons to prefer the OM System OM-3:

  • More detail: Has more megapixels (20.2 vs 15.9MP), which boosts linear resolution by 13%.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Better jpgs: Has a more modern image processing engine (TruePic X vs TruePIC VII).
  • Better video: Provides higher definition movie capture (4K/60p vs 1080/30p).
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • More detailed LCD: Has a higher resolution rear screen (1640k vs 1037k dots).
  • 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.
  • Longer lasting: Gets more shots (590 versus 350) out of a single battery charge.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More modern: Reflects 11 years and 4 months of technical progress since the E-M1 launch.

If the count of individual advantages (bullet points above) is taken as a guide, the OM-3 is the clear winner of the contest (14 : 5 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 wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

E-M1 05:14 OM-3

How about other alternatives? Do the specifications of the Olympus E-M1 and the OM System OM-3 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera listing 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 remains incomplete and does no justice, for example, to the way the E-M1 or the OM-3 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.

Expert reviews

This is why hands-on reviews by experts are important. 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
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Olympus E-M15/5+ +..84/1004.5/54.5/5 Sep 2013 US$ 1 399ebay.com
2.
 
OM System OM-3......86/100.... Feb 2025 US$ 1 999 amazon.com
3.
 
Olympus E-M1 II5/5+ +5/585/1004.5/54.5/5 Sep 2016 US$ 1 999ebay.com
4.
 
Olympus E-M1 III5/5..5/583/1004.5/54/5 Feb 2020 US$ 1 799ebay.com
5.
 
Olympus E-M54/5+ +..80/1004.5/55/5 Feb 2012 US$ 1 299ebay.com
6.
 
Olympus E-M5 II5/5+ +4.5/581/1005/55/5 Feb 2015 US$ 1 099ebay.com
7.
 
Olympus E-P55/5+ +..78/1004.5/55/5 May 2013 US$ 999ebay.com
8.
 
Olympus E-PL53/5+ +....4.5/54.5/5 Sep 2012 US$ 599ebay.com
9.
 
Olympus E-PL74/5+....5/54/5 Aug 2014 US$ 599ebay.com
10.
 
Olympus E-PM23/5....77/1005/54.5/5 Sep 2012 US$ 499ebay.com
11.
 
Olympus PEN-F....4/582/1004.5/55/5 Jan 2016 US$ 1 199ebay.com
12.
 
OM System OM-15/5....87/1005/54.5/5 Feb 2022 US$ 2 199ebay.com
13.
 
OM System OM-1 II............ Jan 2024 US$ 2 399 amazon.com
14.
 
OM System OM-5 II............ Jun 2025 US$ 1 199 amazon.com
15.
 
Panasonic GH35/5+ +..79/1004.5/54.5/5 Sep 2012 US$ 1 299ebay.com
16.
 
Panasonic GH45/5+ +..85/1005/55/5 Feb 2014 US$ 1 499ebay.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. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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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 a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Olympus E-M1 vs OM System OM-3

    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-M1 OM System OM-3
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Micro Four Thirds lenses Micro Four Thirds lenses
    Launch Date September 2013 February 2025
    Launch Price USD 1,399 USD 1,999
    Sensor Specs Olympus E-M1 OM System OM-3
    Sensor Technology CMOS Stacked BSI-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 15.9 Megapixels 20.2 Megapixels
    Image Resolution 4608 x 3456 pixels 5184 x 3888 pixels
    Pixel Pitch 3.76 μm 3.34 μm
    Pixel Density 7.08 MP/cm2 8.96 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 1080/30p Video 4K/60p Video
    ISO Setting 200 - 25,600 ISO 80 - 25,600 ISO
    ISO Boost 100 - 25,600 ISO 80 - 102,400 ISO
    Image Processor TruePIC VII TruePic X
    DXO Sensor Quality (score) 73 ..
    DXO Color Depth (bits) 23.0 ..
    DXO Dynamic Range (EV) 12.7 ..
    DXO Low Light (ISO) 757 ..
    Screen Specs Olympus E-M1 OM System OM-3
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.74x 0.69x
    Viewfinder Resolution 2360k dots 2360k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1037k dots 1640k dots
    LCD Attachment Tilting screen Swivel screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Olympus E-M1 OM System OM-3
    Focus System On-Sensor Phase-detect On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/8000s
    Continuous Shooting 10 shutter flaps/s 6 shutter flaps/s
    Electronic ShutterYESup to 1/32000s
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium SDXC cards SDXC cards
    Single or Dual Card Slots Single card slot Single card slot
    UHS card support UHS-I UHS-II
    Connectivity Specs Olympus E-M1 OM System OM-3
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 2.0 USB 3.0
    HDMI Port micro HDMI micro HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Olympus E-M1 OM System OM-3
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Olympus BLN-1 OM System BLX-1
    Battery Life (CIPA)350 shots per charge590 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 130 x 94 x 63 mm
    (5.1 x 3.7 x 2.5 in)
    139 x 89 x 46 mm
    (5.5 x 3.5 x 1.8 in)
    Camera Weight 497 g (17.5 oz) 496 g (17.5 oz)
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