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Olympus E-P1 vs Sony A7R IV

The Olympus PEN E-P1 and the Sony Alpha A7R IV are two enthusiast cameras that were revealed to the public, respectively, in June 2009 and July 2019. Both the E-P1 and the A7R IV are mirrorless interchangeable lens cameras that are based on a Four Thirds (E-P1) and a full frame (A7R IV) sensor. The Olympus has a resolution of 12.2 megapixels, whereas the Sony provides 60.2 MP.

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

Headline Specifications
Olympus E-P1
versus
Sony A7R IV
Olympus E-P1   Sony A7R IV
Mirrorless system camera Mirrorless system camera
Micro Four Thirds lenses Sony E mount lenses
12.2 MP – Four Thirds sensor 60.2 MP – Full Frame sensor
720/30p Video 4K/30p Video
ISO 100-6,400 ISO 100-32,000 (50 - 102,400)
No viewfinder, LCD framing Electronic viewfinder (5760k dots)
3.0" LCD – 230k dots 3.0" LCD – 1440k dots
Fixed screen (not touch-sensitive) Tilting touchscreen
3 shutter flaps per second 10 shutter flaps per second
In-body stabilizationIn-body stabilization
not weather sealedWeathersealed body
300 shots per battery charge670 shots per battery charge
121 x 70 x 36 mm, 355 g 129 x 96 x 78 mm, 665 g
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Check E-P1 offers at
ebay.com
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Check A7R IV price at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus PEN E-P1 and the Sony Alpha A7R 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-P1 and the Sony A7R 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-P1 can be obtained in three different colors (black, silver, white), while the A7R IV is only available in black.

Size Olympus E-P1 vs Sony A7R IV
Compare E-P1 versus A7R IV top
Comparison E-P1 or A7R IV rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7R IV is considerably larger (46 percent) than the Olympus E-P1. Moreover, the A7R IV is substantially heavier (87 percent) than the E-P1. It is noteworthy in this context that the A7R IV is splash and dust-proof, while the E-P1 does not feature any corresponding weather-sealing.

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 (E-P1) and the Sony FE Lens Catalog (A7R IV). 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-P1 gets 300 shots out of its BLS-1 battery, while the A7R IV can take 670 images on a single charge of its NP-FZ100 power pack. The power pack in the A7R 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.

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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-P1 121 mm 70 mm 36 mm 355 g 300 n Jun 2009 799ebay.com
2.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 3,499 amazon.com
3.
 
Olympus E-P3 122 mm 69 mm 34 mm 369 g 330 n Jun 2011 799ebay.com
4.
 
Olympus E-PL2 114 mm 72 mm 42 mm 362 g 280 n Jan 2011 599ebay.com
5.
 
Olympus E-PL3 110 mm 64 mm 37 mm 313 g 300 n Jun 2011 599ebay.com
6.
 
Olympus E-PL1 115 mm 72 mm 42 mm 334 g 290 n Feb 2010 599ebay.com
7.
 
Olympus E-620 130 mm 94 mm 60 mm 521 g 500 n Feb 2009 699ebay.com
8.
 
Olympus E-P2 121 mm 70 mm 36 mm 355 g 300 n Nov 2009 799ebay.com
9.
 
Olympus E-520 136 mm 92 mm 68 mm 535 g 750 n May 2008 699ebay.com
10.
 
Panasonic G10 124 mm 84 mm 74 mm 388 g 380 n Mar 2010 499ebay.com
11.
 
Panasonic GF1 119 mm 71 mm 36 mm 385 g 380 n Sep 2009 749ebay.com
12.
 
Panasonic GH1 124 mm 90 mm 45 mm 385 g 300 n Mar 2009 899ebay.com
13.
 
Sony A1 129 mm 97 mm 81 mm 737 g 530 Y Jan 2021 6,499 amazon.com
14.
 
Sony A7S III 127 mm 97 mm 81 mm 699 g 600 Y Jul 2020 3,499 amazon.com
15.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199ebay.com
16.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 3,199ebay.com
17.
 
Sony A7S II 127 mm 96 mm 60 mm 627 g 370 Y Sep 2015 2,999ebay.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 E-P1 was launched at a markedly lower price (by 77 percent) than the A7R IV, which puts it into a different 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.

Of the two cameras under consideration, the Olympus E-P1 features a Four Thirds sensor and the Sony A7R IV a full frame sensor. The sensor area in the A7R IV is 278 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 E-P1 has a native 4:3 aspect ratio, while the one in the A7R IV offers a 3:2 aspect.

Olympus E-P1 and Sony A7R IV sensor measures

With 60.2MP, the A7R IV offers a higher resolution than the E-P1 (12.2MP), but the A7R IV has smaller individual pixels (pixel pitch of 3.76μm versus 4.29μm for the E-P1). Yet, the A7R IV is a much more recent model (by 10 years and 1 month) than the E-P1, 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 A7R IV has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A7R IV implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7R IV for good quality output (200 dots per inch) amounts to 47.5 x 31.7 inches or 120.7 x 80.5 cm, for very good quality (250 dpi) 38 x 25.3 inches or 96.6 x 64.4 cm, and for excellent quality (300 dpi) 31.7 x 21.1 inches or 80.5 x 53.6 cm. The corresponding values for the Olympus E-P1 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 A7R IV has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the E-P1, the A7R IV has the capacity to capture high quality composite images (241MP) 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 PEN E-P1 has a native sensitivity range from ISO 100 to ISO 6400. The corresponding ISO settings for the Sony Alpha A7R IV are ISO 100 to ISO 32000, with the possibility to increase the ISO range to 50-102400.

In terms of underlying technology, the E-P1 is build around a CMOS sensor, while the A7R IV uses a 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-P1 versus A7R IV MP

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"). Of the two cameras under consideration, the A7R IV offers substantially better image quality than the E-P1 (overall score 44 points higher). The advantage is based on 4.6 bits higher color depth, 4.4 EV in additional dynamic range, and 2.6 stops in additional low light sensitivity. 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.
 
Olympus E-P1 Four Thirds 12.2 4032 3024720/30p21.410.453655
2.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.8334499
3.
 
Olympus E-P3 Four Thirds 12.2 4032 30241080/60i20.810.153651
4.
 
Olympus E-PL2 Four Thirds 12.2 4032 3024720/30p21.410.257355
5.
 
Olympus E-PL3 Four Thirds 12.2 4032 30241080/60i20.910.349952
6.
 
Olympus E-PL1 Four Thirds 12.2 4032 3024720/30p21.510.148754
7.
 
Olympus E-620 Four Thirds 12.2 4032 3024none21.310.353655
8.
 
Olympus E-P2 Four Thirds 12.2 4032 3024720/30p21.510.450556
9.
 
Olympus E-520 Four Thirds 10.0 3648 2736none21.410.454855
10.
 
Panasonic G10 Four Thirds 12.0 4000 3000720/30p21.210.141152
11.
 
Panasonic GF1 Four Thirds 12.0 4000 3000720/30p21.210.351354
12.
 
Panasonic GH1 Four Thirds 12.0 4000 30001080/24p21.611.677264
13.
 
Sony A1 Full Frame 49.8 8640 57608k/30p25.914.5316398
14.
 
Sony A7S III Full Frame 12.0 4240 28324K/120p23.713.9252086
15.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
16.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
17.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385

Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the A7R IV provides a better video resolution than the E-P1. It can shoot movie footage at 4K/30p, while the Olympus is limited to 720/30p.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the A7R IV has an electronic viewfinder (5760k dots), which can be very helpful when shooting in bright sunlight. In contrast, the E-P1 relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Olympus E-P1, the Sony A7R IV, and comparable 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.
 
Olympus E-P1none n3.0 / 230 fixed n 1/4000s 3.0/s n Y
2.
 
Sony A7R IV5760 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
3.
 
Olympus E-P3optional n3.0 / 614 fixed Y 1/4000s 3.0/s Y Y
4.
 
Olympus E-PL2optional n3.0 / 460 fixed n 1/4000s 3.0/s Y Y
5.
 
Olympus E-PL3optional n3.0 / 460 tilting n 1/4000s 5.5/s n Y
6.
 
Olympus E-PL1optional n2.7 / 230 fixed n 1/2000s 3.0/s Y Y
7.
 
Olympus E-620optical n2.7 / 230 swivel n 1/4000s 4.0/s Y Y
8.
 
Olympus E-P2optional n3.0 / 230 fixed n 1/4000s 3.0/s n Y
9.
 
Olympus E-520optical n2.7 / 215 fixed n 1/4000s 3.5/s Y Y
10.
 
Panasonic G10202 n3.0 / 460 fixed n 1/4000s 2.6/s Y n
11.
 
Panasonic GF1optional n3.0 / 460 fixed n 1/4000s 3.0/s Y n
12.
 
Panasonic GH11440 n3.0 / 460 swivel n 1/4000s 3.0/s Y n
13.
 
Sony A19437 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
14.
 
Sony A7S III9440 n3.0 / 1440 swivel Y 1/8000s 10.0/s n Y
15.
 
Sony A7R III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
16.
 
Sony A7R II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
17.
 
Sony A7S II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
Notes: *) 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 A7R IV has a touchscreen, while the E-P1 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

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 A7R 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 Sony A7R 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-P1 writes its imaging data to SDHC cards, while the A7R IV uses SDXC cards. The A7R IV features dual card slots, which can be very useful in case a memory card fails. In contrast, the E-P1 only has one slot. The A7R IV supports UHS-II cards (on both slots), while the E-P1 cannot take advantage of Ultra High Speed SD cards.

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 PEN E-P1 and Sony Alpha A7R IV 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-P1Ystereo / ---mini2.0---
2.
 
Sony A7R IVYstereo / monoYYmicro3.1YYY
3.
 
Olympus E-P3Ystereo / ---mini2.0---
4.
 
Olympus E-PL2Ystereo / ---mini2.0---
5.
 
Olympus E-PL3Ystereo / ---mini2.0---
6.
 
Olympus E-PL1Ystereo / ---mini2.0---
7.
 
Olympus E-620Y- / ----2.0---
8.
 
Olympus E-P2Ystereo / ---mini2.0---
9.
 
Olympus E-520Y- / ----2.0---
10.
 
Panasonic G10Ymono / ---mini2.0---
11.
 
Panasonic GF1Ymono / mono--mini2.0---
12.
 
Panasonic GH1Ystereo / -Y-mini2.0---
13.
 
Sony A1Ystereo / monoYYfull3.2Y-Y
14.
 
Sony A7S IIIYstereo / monoYYfull3.2Y-Y
15.
 
Sony A7R IIIYstereo / monoYYmicro3.1YYY
16.
 
Sony A7R IIYstereo / monoYYmicro2.0YY-
17.
 
Sony A7S IIYstereo / monoYYmicro2.0YY-

It is notable that the A7R IV offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the E-P1 does not provide wifi capability.

Studio photographers will appreciate that the Sony A7R IV (unlike the E-P1) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The A7R IV is a recent model that features in the current product line-up of Sony. In contrast, the E-P1 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the E-P1 was succeeded by the Olympus E-P2. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Olympus and Sony websites.

Review summary

So how do things add up? Which of the two cameras – the Olympus E-P1 or the Sony A7R 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.

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Arguments in favor of the Olympus PEN E-P1:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • More compact: Is smaller (121x70mm vs 129x96mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 310g or 47 percent) and hence easier to carry around.
  • More affordable: Was introduced into a lower priced category (77 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in June 2009).

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Reasons to prefer the Sony Alpha A7R IV:

  • More detail: Has more megapixels (60.2 vs 12.2MP), which boosts linear resolution by 127%.
  • 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 image quality: Scores substantially higher (44 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (4.6 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (4.4 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (2.6 stops ISO advantage).
  • Better video: Provides higher definition movie capture (4K/30p vs 720/30p).
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1440k vs 230k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (10 vs 3 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.
  • Longer lasting: Gets more shots (670 versus 300) out of a single battery charge.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • Faster buffer clearing: Supports Ultra High Speed (UHS-II) SDXC cards on both slots.
  • More modern: Reflects 10 years and 1 month of technical progress since the E-P1 launch.

If the count of individual advantages (bullet points above) is taken as a guide, the A7R IV is the clear winner of the contest (30 : 5 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. 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.

E-P1 05:30 A7R IV

How about other alternatives? Do the specifications of the Olympus E-P1 and the Sony A7R IV 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 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-P1 or the A7R 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.

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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-P1..+..66/1004/54.5/5 Jun 2009 799ebay.com
2.
 
Sony A7R IV5/5+4.5/591/1004.5/55/5 Jul 2019 3,499 amazon.com
3.
 
Olympus E-P3..83/100..74/1004.5/54.5/5 Jun 2011 799ebay.com
4.
 
Olympus E-PL23/583/100..71/1004.5/54.5/5 Jan 2011 599ebay.com
5.
 
Olympus E-PL33/5+ +..72/1004.5/54/5 Jun 2011 599ebay.com
6.
 
Olympus E-PL1..86/100..69/1004/54.5/5 Feb 2010 599ebay.com
7.
 
Olympus E-6203/588/100..72/1004.5/55/5 Feb 2009 699ebay.com
8.
 
Olympus E-P23/5+..69/1004/54.5/5 Nov 2009 799ebay.com
9.
 
Olympus E-520..87/100..+ +4.5/54.5/5 May 2008 699ebay.com
10.
 
Panasonic G103/5....70/1004/54/5 Mar 2010 499ebay.com
11.
 
Panasonic GF1..85/100..69/1004.5/54.5/5 Sep 2009 749ebay.com
12.
 
Panasonic GH1..+ +..72/1004.5/54.5/5 Mar 2009 899ebay.com
13.
 
Sony A15/5o4.5/593/1004.5/55/5 Jan 2021 6,499 amazon.com
14.
 
Sony A7S III..+ +5/591/1004.5/55/5 Jul 2020 3,499 amazon.com
15.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 3,199ebay.com
16.
 
Sony A7R II5/5+ +5/590/1005/55/5 Jun 2015 3,199ebay.com
17.
 
Sony A7S II5/5+....4.5/55/5 Sep 2015 2,999ebay.com
Notes: (+ +) 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, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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Check E-P1 offers at
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Check A7R IV price at
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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-P1 vs Sony A7R 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 Specifications
    Camera Model Olympus E-P1 Sony A7R IV
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Micro Four Thirds lenses Sony E mount lenses
    Launch Date June 2009 July 2019
    Launch Price USD 799 USD 3,499
    Sensor Specs Olympus E-P1 Sony A7R IV
    Sensor Technology CMOS BSI-CMOS
    Sensor Format Four Thirds Sensor Full Frame Sensor
    Sensor Size 17.3 x 13.0 mm 35.7 x 23.8 mm
    Sensor Area 224.9 mm2 849.66 mm2
    Sensor Diagonal 21.6 mm 42.9 mm
    Crop Factor 2.0x 1.0x
    Sensor Resolution 12.2 Megapixels 60.2 Megapixels
    Image Resolution 4032 x 3024 pixels 9504 x 6336 pixels
    Pixel Pitch 4.29 μm 3.76 μm
    Pixel Density 5.42 MP/cm2 7.09 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 720/30p Video 4K/30p Video
    ISO Setting 100 - 6,400 ISO 100 - 32,000 ISO
    ISO Boost no Enhancement 50 - 102,400 ISO
    Image Processor TruePic V BIONZ X
    DXO Sensor Quality (score) 55 99
    DXO Color Depth (bits) 21.4 26.0
    DXO Dynamic Range (EV) 10.4 14.8
    DXO Low Light (ISO) 536 3344
    Screen Specs Olympus E-P1 Sony A7R IV
    Viewfinder Type no viewfinder Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.78x
    Viewfinder Resolution 5760k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 230k dots 1440k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Olympus E-P1 Sony A7R IV
    Focus System Contrast-detect AF On-Sensor Phase-detect
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 3 shutter flaps/s 10 shutter flaps/s
    Electronic Shutterno E-ShutterYES
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium SDHC cards SDXC cards
    Second Storage Option Single card slot Dual card slots
    UHS card support no Dual UHS-II
    Connectivity Specs Olympus E-P1 Sony A7R IV
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.1
    HDMI Port mini HDMI micro HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Olympus E-P1 Sony A7R IV
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type BLS-1 NP-FZ100
    Battery Life (CIPA)300 shots per charge670 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 121 x 70 x 36 mm
    (4.8 x 2.8 x 1.4 in)
    129 x 96 x 78 mm
    (5.1 x 3.8 x 3.1 in)
    Camera Weight 355 g (12.5 oz) 665 g (23.5 oz)
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