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Olympus E-M10 IV vs E-P7

The Olympus OM-D E-M10 Mark IV and the Olympus PEN E-P7 are two digital cameras that were revealed to the public, respectively, in August 2020 and June 2021. Both the E-M10 IV and the E-P7 are mirrorless interchangeable lens cameras that are equipped with a Four Thirds sensor. Both cameras offer a resolution of 20.2 megapixels.

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

Headline Specifications
Olympus E-M10 IV
versus
Olympus E-P7
Olympus E-M10 IV   Olympus E-P7
Mirrorless system camera Mirrorless system camera
Micro Four Thirds lenses Micro Four Thirds lenses
20.2 MP, Four Thirds Sensor 20.2 MP, Four Thirds Sensor
4K/30p Video 4K/30p Video
ISO 200-25,600 ISO 200-25,600
Electronic viewfinder (2360k dots) No viewfinder, LCD framing
3.0 LCD, 1040k dots 3.0 LCD, 1040k dots
Tilting touchscreen Tilting touchscreen
15 shutter flaps per second 8.7 shutter flaps per second
In-body stabilizationIn-body stabilization
360 shots per battery charge360 shots per battery charge
122 x 84 x 49 mm, 383 g 118 x 69 x 38 mm, 337 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus OM-D E-M10 Mark IV and the Olympus PEN E-P7? 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-M10 IV and the Olympus E-P7 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth dimensions are rounded to the nearest millimeter.

The E-M10 IV can be obtained in two different colors (black, silver), while the E-P7 is available in three color-versions (black, silver, white).

Size Olympus E-M10 IV vs Olympus E-P7
Compare E-M10 IV versus E-P7 top
Comparison E-M10 IV or E-P7 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-P7 is notably smaller (21 percent) than the Olympus E-M10 IV. Moreover, the E-P7 is markedly lighter (12 percent) than the E-M10 IV. In this context, it is worth noting that neither the E-M10 IV nor the E-P7 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. 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.

The power pack in the E-M10 IV can be charged via the USB port, so that it is not always necessary to take the battery charger along 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
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Olympus E-M10 IV 122 mm 84 mm 49 mm 383 g 360 n Aug 2020 699 i
2.
 
Olympus E-P7 118 mm 69 mm 38 mm 337 g 360 n Jun 2021 799 i
3.
 
Olympus E-M5 III 125 mm 85 mm 50 mm 414 g 310 Y Oct 2019 1,199 i
4.
 
Olympus E-PL10 117 mm 68 mm 39 mm 380 g 350 n Oct 2019 599 i
5.
 
Olympus E-PL9 117 mm 68 mm 39 mm 380 g 350 n Feb 2018 599i
6.
 
Olympus E-M10 III 122 mm 84 mm 50 mm 410 g 330 n Aug 2017 649i
7.
 
Olympus E-PL8 115 mm 67 mm 38 mm 357 g 350 n Sep 2016 549i
8.
 
Olympus PEN-F 125 mm 72 mm 37 mm 427 g 330 n Jan 2016 1,199i
9.
 
Olympus E-M10 II 120 mm 83 mm 47 mm 390 g 320 n Aug 2015 649i
10.
 
Olympus E-M10 119 mm 82 mm 46 mm 396 g 320 n Jan 2014 699i
11.
 
Olympus E-PL7 115 mm 67 mm 38 mm 357 g 350 n Aug 2014 599i
12.
 
Olympus E-P5 122 mm 69 mm 37 mm 420 g 330 n May 2013 999i
13.
 
Olympus E-P3 122 mm 69 mm 34 mm 369 g 330 n Jun 2011 799i
14.
 
Olympus E-P2 121 mm 70 mm 36 mm 355 g 300 n Nov 2009 799i
Notes: 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-M10 IV was launched at a somewhat lower price (by 13 percent) than the E-P7, which makes it more attractive for photographers on a tight budget. 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.

Both cameras under consideration feature a Four Thirds sensor, but their sensors differ slightly in size. They nevertheless have the same format factor of 2.0. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.

Olympus E-M10 IV and Olympus E-P7 sensor measures

Even though the E-P7 has a slightly larger sensor, both cameras offer the same resolution of 20.2 megapixels. This implies that the E-P7 has a lower pixel density and marginally larger individual pixels (with a pixel pitch of 3.34μm versus 3.34μm for the E-M10 IV), which gives it a potential advantage in terms of light gathering capacity. In addition, the E-P7 is a somewhat more recent model (by 10 months) than the E-M10 IV, and its sensor might have benefitted from technological advances during this time. 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 Olympus OM-D E-M10 Mark IV has a native sensitivity range from ISO 200 to ISO 25600, which can be extended to ISO 100-25600. The Olympus PEN E-P7 offers exactly the same ISO settings.

E-M10 IV versus E-P7 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 following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

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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.
 
Olympus E-M10 IV Four Thirds 20.2 5184 38884K/30p........
2.
 
Olympus E-P7 Four Thirds 20.2 5184 38884K/30p........
3.
 
Olympus E-M5 III Four Thirds 20.2 5184 38884K/30p........
4.
 
Olympus E-PL10 Four Thirds 15.9 4608 34564K/30p........
5.
 
Olympus E-PL9 Four Thirds 15.9 4608 34564K/30p........
6.
 
Olympus E-M10 III Four Thirds 15.9 4608 34564K/30p........
7.
 
Olympus E-PL8 Four Thirds 15.9 4608 34561080/30p........
8.
 
Olympus PEN-F Four Thirds 20.2 5184 38881080/60p23.112.489474
9.
 
Olympus E-M10 II Four Thirds 15.9 4608 34561080/60p23.112.584273
10.
 
Olympus E-M10 Four Thirds 15.9 4608 34561080/30p22.812.388472
11.
 
Olympus E-PL7 Four Thirds 15.9 4608 34561080/30p22.712.487372
12.
 
Olympus E-P5 Four Thirds 15.9 4608 34561080/30p22.812.489572
13.
 
Olympus E-P3 Four Thirds 12.2 4032 30241080/60i20.810.153651
14.
 
Olympus E-P2 Four Thirds 12.2 4032 3024720/30p21.510.450556

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, and both provide the same movie specifications (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), which can be very helpful when shooting in bright sunlight. In contrast, the E-P7 relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Olympus E-M10 IV and Olympus E-P7 along with similar information for a selection of comparators.

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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)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Olympus E-M10 IV2360 n3.0 / 1040 tilting Y 1/4000s 15.0 Y Y
2.
 
Olympus E-P7none n3.0 / 1040 tilting Y 1/4000s 8.7 Y Y
3.
 
Olympus E-M5 III2360 n3.0 / 1040 swivel Y 1/8000s 10.0 n Y
4.
 
Olympus E-PL10none n3.0 / 1040 tilting Y 1/4000s 8.6 Y Y
5.
 
Olympus E-PL9none n3.0 / 1040 tilting Y 1/4000s 8.6 Y Y
6.
 
Olympus E-M10 III2360 n3.0 / 1040 tilting Y 1/4000s 8.6 Y Y
7.
 
Olympus E-PL8optional n3.0 / 1037 tilting Y 1/4000s 8.0 n Y
8.
 
Olympus PEN-F2360 n3.0 / 1037 swivel Y 1/8000s 10.0 n Y
9.
 
Olympus E-M10 II2360 n3.0 / 1040 tilting Y 1/4000s 8.0 Y Y
10.
 
Olympus E-M101440 n3.0 / 1037 tilting Y 1/4000s 8.0 Y Y
11.
 
Olympus E-PL7optional n3.0 / 1037 tilting Y 1/4000s 8.0 n Y
12.
 
Olympus E-P5optional n3.0 / 1037 tilting Y 1/8000s 9.0 Y Y
13.
 
Olympus E-P3optional n3.0 / 614 fixed Y 1/4000s 3.0 Y Y
14.
 
Olympus E-P2optional n3.0 / 230 fixed n 1/4000s 3.0 n Y
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, 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-M10 IV and the Olympus E-P7 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-M10 IV and the E-P7 write their files to SDXC cards. Both cameras support UHS-II cards, which provide for Ultra High Speed data transfer of up to 312 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-M10 Mark IV and Olympus PEN E-P7 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.
 
Olympus E-M10 IVYstereo / mono--micro2.0Y-Y
2.
 
Olympus E-P7Ystereo / mono--micro2.0Y-Y
3.
 
Olympus E-M5 IIIYstereo / monoY-micro2.0Y-Y
4.
 
Olympus E-PL10Ystereo / mono--micro2.0Y-Y
5.
 
Olympus E-PL9Ystereo / mono--micro2.0Y-Y
6.
 
Olympus E-M10 IIIYstereo / mono--micro2.0Y--
7.
 
Olympus E-PL8Ystereo / mono--micro2.0Y--
8.
 
Olympus PEN-FYstereo / mono--micro2.0Y--
9.
 
Olympus E-M10 IIYstereo / mono--micro2.0Y--
10.
 
Olympus E-M10Ystereo / mono--micro2.0Y--
11.
 
Olympus E-PL7Ystereo / mono--micro2.0Y--
12.
 
Olympus E-P5Ystereo / mono--micro2.0Y--
13.
 
Olympus E-P3Ystereo / ---mini2.0---
14.
 
Olympus E-P2Ystereo / ---mini2.0---

Both the E-M10 IV and the E-P7 are recent models that are part of the current product line-up. The E-M10 IV replaced the earlier Olympus E-M10 III, while the E-P7 followed on from the Olympus E-P5. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Olympus website.

Review summary

So what is the bottom line? Which of the two cameras – the Olympus E-M10 IV or the Olympus E-P7 – 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.


Advantages of the Olympus OM-D E-M10 Mark IV:

  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • Faster burst: Shoots at higher frequency (15 vs 8.7 flaps/sec) to capture the decisive moment.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • More affordable: Was introduced into a lower priced segment (13 percent cheaper at launch).
  • More heavily discounted: Has been on the market for longer (launched in August 2020).


Arguments in favor of the Olympus PEN E-P7:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • More compact: Is smaller (118x69mm vs 122x84mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 46g or 12 percent) and is thus easier to take along.
  • More modern: Was introduced somewhat (10 months) more recently.

If the count of individual advantages (bullet points above) is taken as a guide, the E-M10 IV emerges as the winner of the contest (6 : 4 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. 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.

E-M10 IV 06:04 E-P7

How about other alternatives? Do the specifications of the Olympus E-M10 IV and the Olympus E-P7 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-M10 IV or the E-P7 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 where reviews by experts come in. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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.
 
Olympus E-M10 IV4.5/5..5/581/1004.5/54.5/5 Aug 2020 699 i
2.
 
Olympus E-P74/5..4.5/5....4.5/5 Jun 2021 799 i
3.
 
Olympus E-M5 III5/5+5/582/1004.5/54.5/5 Oct 2019 1,199 i
4.
 
Olympus E-PL10....4/577/100..4/5 Oct 2019 599 i
5.
 
Olympus E-PL9..+....4.5/54/5 Feb 2018 599i
6.
 
Olympus E-M10 III..+5/580/1004.5/54.5/5 Aug 2017 649i
7.
 
Olympus E-PL8........4.5/54/5 Sep 2016 549i
8.
 
Olympus PEN-F....4/582/1004.5/55/5 Jan 2016 1,199i
9.
 
Olympus E-M10 II4.5/5+ +..80/1005/55/5 Aug 2015 649i
10.
 
Olympus E-M104/5....80/1005/55/5 Jan 2014 699i
11.
 
Olympus E-PL74/5+....5/54/5 Aug 2014 599i
12.
 
Olympus E-P55/5+ +..78/1004.5/55/5 May 2013 999i
13.
 
Olympus E-P3..83/100..74/1004.5/54.5/5 Jun 2011 799i
14.
 
Olympus E-P23/5+..69/1004/54.5/5 Nov 2009 799i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

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.

Olympus E-M10 IV:
Check Amazon price
Olympus E-P7:
Check Amazon price

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: Olympus E-M10 IV vs Olympus E-P7

    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-M10 IV Olympus E-P7
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Micro Four Thirds lenses Micro Four Thirds lenses
    Launch Date August 2020 June 2021
    Launch Price USD 699 USD 799
    Sensor Specs Olympus E-M10 IV Olympus E-P7
    Sensor Technology CMOS CMOS
    Sensor Format Four Thirds Sensor Four Thirds Sensor
    Sensor Size 17.3 x 13.0 mm 17.4 x 13.0 mm
    Sensor Area 224.9 mm2 226.2 mm2
    Sensor Diagonal 21.6 mm 21.7 mm
    Crop Factor 2.0x 2.0x
    Sensor Resolution 20.2 Megapixels 20.2 Megapixels
    Image Resolution 5184 x 3888 pixels 5184 x 3888 pixels
    Pixel Pitch 3.34 μm 3.34 μm
    Pixel Density 8.96 MP/cm2 8.91 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 4K/30p Video 4K/30p Video
    ISO Setting 200 - 25,600 ISO 200 - 25,600 ISO
    ISO Boost 100 - 25,600 ISO 100 - 25,600 ISO
    Image Processor TruePic VIII TruePic VIII
    Screen Specs Olympus E-M10 IV Olympus E-P7
    Viewfinder Type Electronic viewfinder no viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.62x
    Viewfinder Resolution 2360k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1040k dots 1040k dots
    LCD Attachment Tilting screen Tilting screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Olympus E-M10 IV Olympus E-P7
    Focus System Contrast-detect AF Contrast-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/4000s
    Continuous Shooting 15 shutter flaps/s 8.7 shutter flaps/s
    Electronic Shutterup to 1/16000sup to 1/16000s
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium SDXC cards SDXC cards
    Second Storage Option Single card slot Single card slot
    UHS card support UHS-II UHS-II
    Connectivity Specs Olympus E-M10 IV Olympus E-P7
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI micro HDMI
    Wifi Support Wifi built-in Wifi built-in
    Bluetooth Support Bluetooth built-in Bluetooth built-in
    Body Specs Olympus E-M10 IV Olympus E-P7
    Battery Type BLS-50 BLS-50
    Battery Life (CIPA)360 shots per charge360 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 122 x 84 x 49 mm
    (4.8 x 3.3 x 1.9 in)
    118 x 69 x 38 mm
    (4.6 x 2.7 x 1.5 in)
    Camera Weight 383 g (13.5 oz) 337 g (11.9 oz)

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