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OM System OM-1 vs Sony A9 II

The OM System OM-1 and the Sony Alpha A9 II are two digital cameras that were announced, respectively, in February 2022 and October 2019. Both the OM-1 and the A9 II are mirrorless interchangeable lens cameras that are based on a Four Thirds (OM-1) and a full frame (A9 II) sensor. The OM System has a resolution of 20.2 megapixels, whereas the Sony provides 24 MP.

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

Headline Specifications
OM System OM-1
versus
Sony A9 II
OM System OM-1   Sony A9 II
Mirrorless system camera Mirrorless system camera
Micro Four Thirds lenses Sony E mount lenses
20.2 MP – Four Thirds sensor 24 MP – Full Frame sensor
4K/60p Video 4K/30p Video
ISO 80-25,600 (80 - 102,400) ISO 100-51,200 (50 - 204,800)
Electronic viewfinder (5760k dots) Electronic viewfinder (3686k dots)
3.0" LCD – 1640k dots 3.0" LCD – 1440k dots
Swivel touchscreen Tilting touchscreen
10 shutter flaps per second 20 shutter flaps per second
In-body stabilizationIn-body stabilization
Weathersealed bodyWeathersealed body
520 shots per battery charge690 shots per battery charge
135 x 92 x 73 mm, 599 g 129 x 96 x 76 mm, 678 g
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Check OM-1 price at
amazon.com
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Check A9 II price at
amazon.com

Going beyond this snapshot of core features and characteristics, what are the differences between the OM System OM-1 and the Sony Alpha A9 II? 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

The physical size and weight of the OM System OM-1 and the Sony A9 II are illustrated 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 size dimensions are rounded to the nearest millimeter.

Size OM System OM-1 vs Sony A9 II
Compare OM-1 versus A9 II top
Comparison OM-1 or A9 II 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-1 and the Sony A9 II are of equal size. However, the A9 II is markedly heavier (13 percent) than the OM-1. 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. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Micro Four Thirds Lens Catalog (OM-1) and the Sony FE Lens Catalog (A9 II). 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 OM-1 gets 520 shots out of its BLX-1 battery, while the A9 II can take 690 images on a single charge of its NP-FZ100 power pack. The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

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Body Specifications
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
OM System OM-1 135 mm 92 mm 73 mm 599 g 520 Y Feb 2022 2,199 amazon.com
2.
 
Sony A9 II 129 mm 96 mm 76 mm 678 g 690 Y Oct 2019 4,499 amazon.com
3.
 
Canon R6 Mark II 138 mm 98 mm 88 mm 670 g 450 Y Nov 2022 2,499 amazon.com
4.
 
Olympus E-M1 III 134 mm 91 mm 69 mm 580 g 420 Y Feb 2020 1,799 amazon.com
5.
 
Olympus E-M1X 144 mm 147 mm 75 mm 997 g 870 Y Jan 2019 2,999 amazon.com
6.
 
Olympus E-M1 II 134 mm 91 mm 67 mm 574 g 440 Y Sep 2016 1,999ebay.com
7.
 
OM System OM-5 125 mm 85 mm 50 mm 414 g 310 Y Oct 2022 1,199 amazon.com
8.
 
Panasonic GH6 138 mm 100 mm 100 mm 823 g 360 Y Feb 2022 2,199 amazon.com
9.
 
Panasonic GH5 II 139 mm 98 mm 87 mm 727 g 400 Y May 2021 1,699 amazon.com
10.
 
Panasonic G95 130 mm 94 mm 77 mm 536 g 290 Y Apr 2019 999 amazon.com
11.
 
Panasonic G9 137 mm 97 mm 92 mm 658 g 400 Y Nov 2017 1,699 amazon.com
12.
 
Panasonic GH5 139 mm 98 mm 87 mm 725 g 410 Y Jan 2017 1,999ebay.com
13.
 
Sony A7 III 127 mm 96 mm 74 mm 650 g 610 Y Feb 2018 1,999 amazon.com
14.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 4,499ebay.com
15.
 
Sony A7S II 127 mm 96 mm 60 mm 627 g 370 Y Sep 2015 2,999ebay.com
16.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 1,999ebay.com
17.
 
Sony A99 147 mm 111 mm 78 mm 812 g 500 Y Sep 2012 2,799ebay.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 OM-1 was launched at a markedly lower price (by 51 percent) than the A9 II, which puts it into a different market segment. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.

Sensor comparison

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. 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.

Of the two cameras under consideration, the OM System OM-1 features a Four Thirds sensor and the Sony A9 II a full frame sensor. The sensor area in the A9 II is 276 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 1.0. The sensor in the OM-1 has a native 4:3 aspect ratio, while the one in the A9 II offers a 3:2 aspect.

OM System OM-1 and Sony A9 II sensor measures

With 24MP, the A9 II offers a higher resolution than the OM-1 (20.2MP), but the A9 II nevertheless has larger individual pixels (pixel pitch of 5.94μm versus 3.34μm for the OM-1) due to its larger sensor. However, the OM-1 is a much more recent model (by 2 years and 4 months) than the A9 II, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the OM-1 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A9 II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A9 II for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the OM System OM-1 are 25.9 x 19.4 inches or 65.8 x 49.4 cm for good quality, 20.7 x 15.6 inches or 52.7 x 39.5 cm for very good quality, and 17.3 x 13 inches or 43.9 x 32.9 cm for excellent quality prints.

Unlike the A9 II, the OM-1 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 OM System OM-1 has a native sensitivity range from ISO 80 to ISO 25600, which can be extended to ISO 80-102400. The corresponding ISO settings for the Sony Alpha A9 II are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 50-204800.

Technology-wise, both cameras are equipped with Stacked BSI-CMOS (Stacked Backside Illuminated 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.

OM-1 versus A9 II MP

Consistent information on actual sensor performance is available from DXO Mark for many 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.

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Sensor Characteristics
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
OM System OM-1 Four Thirds 20.2 5184 38884K/60p23.413.4155377
2.
 
Sony A9 II Full Frame 24.0 6000 40004K/30p25.014.0343493
3.
 
Canon R6 Mark II Full Frame 24.0 6000 40004k/60p25.414.6315496
4.
 
Olympus E-M1 III Four Thirds 20.2 5184 38884K/30p23.313.1135676
5.
 
Olympus E-M1X Four Thirds 20.2 5184 38884K/30p23.213.0125475
6.
 
Olympus E-M1 II Four Thirds 20.2 5184 38884K/30p23.712.8131280
7.
 
OM System OM-5 Four Thirds 20.2 5184 38884K/30p23.413.4162278
8.
 
Panasonic GH6 Four Thirds 25.0 5776 43365.7K/60p23.413.4155577
9.
 
Panasonic GH5 II Four Thirds 20.2 5184 38884K/60p23.713.1113679
10.
 
Panasonic G95 Four Thirds 20.2 5184 38884K/30p23.213.0127375
11.
 
Panasonic G9 Four Thirds 20.2 5184 38884K/60p23.112.8113874
12.
 
Panasonic GH5 Four Thirds 20.2 5184 38884K/60p23.913.080777
13.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096
14.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792
15.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
16.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
17.
 
Sony A99 Full Frame 24.0 6000 40001080/60p25.014.0155589
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 also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the OM-1 provides a higher frame rate than the A9 II. It can shoot video footage at 4K/60p, while the Sony is limited to 4K/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the OM-1 offers a substantially higher resolution than the one in the A9 II (5760k vs 3686k dots). The table below summarizes some of the other core capabilities of the OM System OM-1 and Sony A9 II in connection with corresponding information for a sample of similar cameras.

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Core Features
    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.
 
OM System OM-15760 n3.0 / 1640 swivel Y 1/8000s 10.0/s n Y
2.
 
Sony A9 II3686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
3.
 
Canon R6 Mark II3690 n3.0 / 1620 swivel Y 1/8000s 12.0/s n Y
4.
 
Olympus E-M1 III2360 n3.0 / 1037 swivel Y 1/8000s 18.0/s n Y
5.
 
Olympus E-M1X2360 n3.0 / 1037 swivel Y 1/8000s 18.0/s n Y
6.
 
Olympus E-M1 II2360 n3.0 / 1037 swivel Y 1/8000s 18.0/s n Y
7.
 
OM System OM-52360 n3.0 / 1040 swivel Y 1/8000s 10.0/s n Y
8.
 
Panasonic GH63680 n3.0 / 1840 swivel Y 1/8000s 14.0/s n Y
9.
 
Panasonic GH5 II3680 n3.0 / 1840 swivel Y 1/8000s 12.0/s n Y
10.
 
Panasonic G952360 n3.0 / 1240 swivel Y 1/4000s 9.0/s Y Y
11.
 
Panasonic G93680 Y3.0 / 1040 swivel Y 1/8000s 20.0/s n Y
12.
 
Panasonic GH53680 n3.2 / 1620 swivel Y 1/8000s 12.0/s n Y
13.
 
Sony A7 III2359 n3.0 / 922 tilting Y 1/8000s 10.0/s n Y
14.
 
Sony A93686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
15.
 
Sony A7S II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
16.
 
Sony A7 II2400 n3.0 / 1230 tilting n 1/8000s 5.0/s n Y
17.
 
Sony A992359 Y3.0 / 1229 full-flex n 1/8000s 6.0/s n Y
Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
The OM-1 has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the A9 II 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 OM System OM-1 and the Sony A9 II 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 OM-1 and the A9 II write their files to SDXC cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails. Moreover, both the OM-1 and the A9 II support UHS-II cards, which provide for Ultra High Speed data transfer of up to 312 MB/s, on both slots.

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 OM System OM-1 and Sony Alpha A9 II and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
    Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
OM System OM-1Ystereo / monoYYmicro3.0Y-Y
2.
 
Sony A9 IIYstereo / monoYYmicro3.1YYY
3.
 
Canon R6 Mark IIYstereo / monoYYmicro3.2Y-Y
4.
 
Olympus E-M1 IIIYstereo / monoYYmicro3.1Y-Y
5.
 
Olympus E-M1XYstereo / monoYYmicro3.0Y-Y
6.
 
Olympus E-M1 IIYstereo / monoYYmicro3.0Y--
7.
 
OM System OM-5Ystereo / monoY-micro2.0Y-Y
8.
 
Panasonic GH6Ystereo / monoYYfull3.2Y-Y
9.
 
Panasonic GH5 IIYstereo / monoYYfull3.2Y-Y
10.
 
Panasonic G95Ystereo / monoYYmicro2.0Y-Y
11.
 
Panasonic G9Ystereo / monoYYfull3.0Y-Y
12.
 
Panasonic GH5Ystereo / monoYYfull3.1Y-Y
13.
 
Sony A7 IIIYstereo / monoYYmicro3.1YYY
14.
 
Sony A9Ystereo / monoYYmicro2.0YYY
15.
 
Sony A7S IIYstereo / monoYYmicro2.0YY-
16.
 
Sony A7 IIYstereo / monoYYmicro2.0YY-
17.
 
Sony A99Ystereo / monoYYmini2.0---

Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.

Both the OM-1 and the A9 II are recent models that are part of the current product line-up. The A9 II replaced the earlier Sony A9, while the OM-1 followed on from the Olympus E-M1 III. Further information on the features and operation of the OM-1 and A9 II can be found, respectively, in the OM System OM-1 Manual (free pdf) or the online Sony A9 II Manual.

Review summary

So what is the bottom line? Which of the two cameras – the OM System OM-1 or the Sony A9 II – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.

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Advantages of the OM System OM-1:

  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Better video: Provides higher movie framerates (4K/60p versus 4K/30p).
  • More detailed viewfinder: Has higher resolution electronic viewfinder (5760k vs 3686k dots).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.82x vs 0.78x).
  • More detailed LCD: Has a higher resolution rear screen (1640k vs 1440k 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.
  • Less heavy: Is lighter (by 79g or 12 percent) and hence easier to carry around.
  • More affordable: Was introduced into a lower priced category (51 percent cheaper at launch).
  • More modern: Reflects 2 years and 4 months of technical progress since the A9 II launch.

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Reasons to prefer the Sony Alpha A9 II:

  • More detail: Has more megapixels (24 vs 20.2MP), which boosts linear resolution by 11%.
  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
  • Richer colors: The pixel size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
  • Faster burst: Shoots at higher frequency (20 vs 10 flaps/sec) to capture the decisive moment.
  • Longer lasting: Gets more shots (690 versus 520) out of a single battery charge.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • More heavily discounted: Has been around for much longer (launched in October 2019).

If the count of individual advantages (bullet points above) is taken as a guide, the OM-1 comes out slightly ahead of the A9 II (11 : 10 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 sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

OM-1 11:10 A9 II

How about other alternatives? Do the specifications of the OM System OM-1 and the Sony A9 II 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 technical specifications can provide a useful overview of the capabilities of different cameras, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the OM-1 or the A9 II. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews

This is why expert reviews are important. The following table reports the overall ratings of the cameras as published by some of the major 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
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
OM System OM-15/5....87/1005/54.5/5 Feb 2022 2,199 amazon.com
2.
 
Sony A9 II....5/590/1005/55/5 Oct 2019 4,499 amazon.com
3.
 
Canon R6 Mark II....4.5/5...... Nov 2022 2,499 amazon.com
4.
 
Olympus E-M1 III5/5..5/583/1004.5/54/5 Feb 2020 1,799 amazon.com
5.
 
Olympus E-M1X4.5/5o5/585/1004.5/5.. Jan 2019 2,999 amazon.com
6.
 
Olympus E-M1 II5/5+ +5/585/1004.5/54.5/5 Sep 2016 1,999ebay.com
7.
 
OM System OM-55/5..4.5/5....4.5/5 Oct 2022 1,199 amazon.com
8.
 
Panasonic GH65/5+ +5/587/1005/55/5 Feb 2022 2,199 amazon.com
9.
 
Panasonic GH5 II4.5/5..4.5/585/1004.5/55/5 May 2021 1,699 amazon.com
10.
 
Panasonic G954.5/5+4.5/583/1004.5/54.5/5 Apr 2019 999 amazon.com
11.
 
Panasonic G9..+ +5/585/1005/55/5 Nov 2017 1,699 amazon.com
12.
 
Panasonic GH54.5/5+ +..85/1004.5/55/5 Jan 2017 1,999ebay.com
13.
 
Sony A7 III..+ +4.5/589/1005/55/5 Feb 2018 1,999 amazon.com
14.
 
Sony A95/5+ +4.8/589/1005/55/5 Apr 2017 4,499ebay.com
15.
 
Sony A7S II5/5+....4.5/55/5 Sep 2015 2,999ebay.com
16.
 
Sony A7 II5/5+4/582/1004.5/55/5 Nov 2014 1,999ebay.com
17.
 
Sony A995/5....84/1004.5/54.5/5 Sep 2012 2,799ebay.com
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, 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 comparisons of ratings among very different cameras or across long time periods have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.

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Check OM-1 price at
amazon.com
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Check A9 II price at
amazon.com

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. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications: OM System OM-1 vs Sony A9 II

    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 OM System OM-1 Sony A9 II
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Micro Four Thirds lenses Sony E mount lenses
    Launch Date February 2022 October 2019
    Launch Price USD 2,199 USD 4,499
    Sensor Specs OM System OM-1 Sony A9 II
    Sensor Technology Stacked BSI-CMOS Stacked BSI-CMOS
    Sensor Format Four Thirds Sensor Full Frame Sensor
    Sensor Size 17.3 x 13.0 mm 35.6 x 23.8 mm
    Sensor Area 224.9 mm2 847.28 mm2
    Sensor Diagonal 21.6 mm 42.8 mm
    Crop Factor 2.0x 1.0x
    Sensor Resolution 20.2 Megapixels 24 Megapixels
    Image Resolution 5184 x 3888 pixels 6000 x 4000 pixels
    Pixel Pitch 3.34 μm 5.94 μm
    Pixel Density 8.96 MP/cm2 2.83 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 4K/60p Video 4K/30p Video
    ISO Setting 80 - 25,600 ISO 100 - 51,200 ISO
    ISO Boost 80 - 102,400 ISO 50 - 204,800 ISO
    Image Processor TruePic X BIONZ X
    DXO Sensor Quality (score) .. 93
    DXO Color Depth (bits) .. 25.0
    DXO Dynamic Range (EV) .. 14.0
    DXO Low Light (ISO) .. 3434
    Screen Specs OM System OM-1 Sony A9 II
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.82x 0.78x
    Viewfinder Resolution 5760k dots 3686k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1640k dots 1440k dots
    LCD Attachment Swivel screen Tilting screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs OM System OM-1 Sony A9 II
    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 20 shutter flaps/s
    Shutter Life Expectancy400 000 actuations500 000 actuations
    Electronic Shutterup to 1/32000sup 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 Dual card slots Dual card slots
    UHS card support Dual UHS-II Dual UHS-II
    Connectivity Specs OM System OM-1 Sony A9 II
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector USB 3.0 USB 3.1
    HDMI Port micro HDMI micro HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Bluetooth Support Bluetooth built-in Bluetooth built-in
    Body Specs OM System OM-1 Sony A9 II
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type BLX-1 NP-FZ100
    Battery Life (CIPA)520 shots per charge690 shots per charge
    In-Camera Charging USB charging USB charging
    Body Dimensions 135 x 92 x 73 mm
    (5.3 x 3.6 x 2.9 in)
    129 x 96 x 76 mm
    (5.1 x 3.8 x 3.0 in)
    Camera Weight 599 g (21.1 oz) 678 g (23.9 oz)
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    Check OM-1 price at
    amazon.com
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    Check A9 II price at
    amazon.com

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