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Olympus E-P1 vs Panasonic S1

The Olympus PEN E-P1 and the Panasonic Lumix DC-S1 are two enthusiast cameras that were officially introduced, respectively, in June 2009 and February 2019. Both the E-P1 and the S1 are mirrorless interchangeable lens cameras that are based on a Four Thirds (E-P1) and a full frame (S1) sensor. The Olympus has a resolution of 12.2 megapixels, whereas the Panasonic provides 24 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
Panasonic S1
Olympus E-P1 Panasonic S1
Mirrorless system camera Mirrorless system camera
Micro Four Thirds lenses Leica L mount lenses
12.2 MP, Four Thirds Sensor 24 MP, Full Frame Sensor
720/30p Video 4K/60p Video
ISO 100-6,400 ISO 100-51,200 (50 - 204,800)
No viewfinder, LCD framing Electronic viewfinder (5760k dots)
3.0 LCD, 230k dots 3.2 LCD, 2100k dots
Fixed screen (not touch-sensitive) Fully flexible touchscreen
3 shutter flaps per second 9 shutter flaps per second
In-body stabilizationIn-body stabilization
not weather sealedWeathersealed body
300 shots per battery charge400 shots per battery charge
121 x 70 x 36 mm, 355 g 149 x 110 x 97 mm, 1017 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus PEN E-P1 and the Panasonic Lumix DC-S1? 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 Olympus E-P1 and the Panasonic S1 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.

The E-P1 can be obtained in three different colors (black, silver, white), while the S1 is only available in black.

Size Olympus E-P1 vs Panasonic S1
Compare E-P1 versus S1 top
Comparison E-P1 or S1 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic S1 is considerably larger (94 percent) than the Olympus E-P1. Moreover, the S1 is substantially heavier (186 percent) than the E-P1. It is noteworthy in this context that the S1 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. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the E-P1 gets 300 shots out of its BLS-1 battery, while the S1 can take 400 images on a single charge of its DMW-BLJ31 power pack. The power pack in the S1 can be charged via the USB port, 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.
 
Olympus E-P1 121 mm 70 mm 36 mm 355 g 300 n Jun 2009 799 i
2.
 
Panasonic S1 149 mm 110 mm 97 mm 1017 g 400 Y Feb 2019 2,499 i
3.
 
Canon R6 138 mm 98 mm 88 mm 680 g 360 Y Jul 2020 2,499 i
4.
 
Olympus E-P3 122 mm 69 mm 34 mm 369 g 330 n Jun 2011 799 i
5.
 
Olympus E-PL2 114 mm 72 mm 42 mm 362 g 280 n Jan 2011 599 i
6.
 
Olympus E-PL3 110 mm 64 mm 37 mm 313 g 300 n Jun 2011 599 i
7.
 
Olympus E-PL1 115 mm 72 mm 42 mm 334 g 290 n Feb 2010 599 i
8.
 
Olympus E-620 130 mm 94 mm 60 mm 521 g 500 n Feb 2009 699 i
9.
 
Olympus E-P2 121 mm 70 mm 36 mm 355 g 300 n Nov 2009 799 i
10.
 
Olympus E-520 136 mm 92 mm 68 mm 535 g 750 n May 2008 699 i
11.
 
Panasonic S5 133 mm 98 mm 82 mm 714 g 440 Y Sep 2020 1,999 i
12.
 
Panasonic S1R 149 mm 110 mm 97 mm 1016 g 380 Y Feb 2019 3,699 i
13.
 
Panasonic S1H 151 mm 114 mm 110 mm 1052 g 400 Y May 2019 3,999 i
14.
 
Panasonic G10 124 mm 84 mm 74 mm 388 g 380 n Mar 2010 499 i
15.
 
Panasonic GF1 119 mm 71 mm 36 mm 385 g 380 n Sep 2009 749 i
16.
 
Panasonic GH1 124 mm 90 mm 45 mm 385 g 300 n Mar 2009 899 i
17.
 
Sony A900 156 mm 117 mm 82 mm 895 g 880 Y Sep 2008 2,999 i
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-P1 was launched at a markedly lower price (by 68 percent) than the S1, 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.

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Sensor comparison

The size of the sensor inside a digital camera is one of the key determinants 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.

Of the two cameras under consideration, the Olympus E-P1 features a Four Thirds sensor and the Panasonic S1 a full frame sensor. The sensor area in the S1 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 E-P1 has a native 4:3 aspect ratio, while the one in the S1 offers a 3:2 aspect.

Olympus E-P1 and Panasonic S1 sensor measures

With 24MP, the S1 offers a higher resolution than the E-P1 (12.2MP), but the S1 nevertheless has larger individual pixels (pixel pitch of 5.94μm versus 4.29μm for the E-P1) due to its larger sensor. Moreover, the S1 is a much more recent model (by 9 years and 7 months) than the E-P1, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the S1 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Panasonic S1 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the S1 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 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.

Unlike the E-P1, the S1 has the capacity to capture high quality composite images (96MP) 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 Panasonic Lumix DC-S1 are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 50-204800.

E-P1 versus S1 MP

For many cameras, data on sensor performance has been reported by DXO Mark. 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 S1 offers substantially better image quality than the E-P1 (overall score 40 points higher). The advantage is based on 3.8 bits higher color depth, 4.1 EV in additional dynamic range, and 2.6 stops in additional low light sensitivity. 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
    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 3024720/30p21.410.4536 55
2.
 
Panasonic S1 Full Frame 24.0 6000 40004K/60p25.214.53333 95
3.
 
Canon R6 Full Frame 20.0 5472 36484k/60p24.214.33394 90
4.
 
Olympus E-P3 Four Thirds 12.2 4032 30241080/60i20.810.1536 51
5.
 
Olympus E-PL2 Four Thirds 12.2 4032 3024720/30p21.410.2573 55
6.
 
Olympus E-PL3 Four Thirds 12.2 4032 30241080/60i20.910.3499 52
7.
 
Olympus E-PL1 Four Thirds 12.2 4032 3024720/30p21.510.1487 54
8.
 
Olympus E-620 Four Thirds 12.2 4032 3024none21.310.3536 55
9.
 
Olympus E-P2 Four Thirds 12.2 4032 3024720/30p21.510.4505 56
10.
 
Olympus E-520 Four Thirds 10.0 3648 2736none21.410.4548 55
11.
 
Panasonic S5 Full Frame 24.0 6000 40004K/60p...... ..
12.
 
Panasonic S1R Full Frame 46.7 8368 55844K/60p26.414.13525 100
13.
 
Panasonic S1H Full Frame 24.0 6000 40006K/30p...... ..
14.
 
Panasonic G10 Four Thirds 12.0 4000 3000720/30p21.210.1411 52
15.
 
Panasonic GF1 Four Thirds 12.0 4000 3000720/30p21.210.3513 54
16.
 
Panasonic GH1 Four Thirds 12.0 4000 30001080/24p21.611.6772 64
17.
 
Sony A900 Full Frame 24.4 6048 4032none23.712.31431 79

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 S1 provides a better video resolution than the E-P1. It can shoot movie footage at 4K/60p, while the Olympus is limited to 720/30p.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the S1 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 adjacent table lists some of the other core features of the Olympus E-P1 and Panasonic S1 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
Size
(inch)
LCD
Resolution
(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-P1none n 3.0 230 fixed n 1/4000s 3.0 n Y
2.
 
Panasonic S15760 Y 3.2 2100 full-flex Y 1/8000s 9.0 n Y
3.
 
Canon R63690 n 3.0 1620 swivel Y 1/8000s 12.0 n Y
4.
 
Olympus E-P3optional n 3.0 614 fixed Y 1/4000s 3.0 Y Y
5.
 
Olympus E-PL2optional n 3.0 460 fixed n 1/4000s 3.0 Y Y
6.
 
Olympus E-PL3optional n 3.0 460 tilting n 1/4000s 5.5 n Y
7.
 
Olympus E-PL1optional n 2.7 230 fixed n 1/2000s 3.0 Y Y
8.
 
Olympus E-620optical n 2.7 230 swivel n 1/4000s 4.0 Y Y
9.
 
Olympus E-P2optional n 3.0 230 fixed n 1/4000s 3.0 n Y
10.
 
Olympus E-520optical n 2.7 215 fixed n 1/4000s 3.5 Y Y
11.
 
Panasonic S52360 n 3.0 1840 full-flex Y 1/8000s 7.0 n Y
12.
 
Panasonic S1R5760 Y 3.2 2100 full-flex Y 1/8000s 9.0 n Y
13.
 
Panasonic S1H5760 Y 3.2 2330 swivel Y 1/8000s 9.0 n Y
14.
 
Panasonic G10202 n 3.0 460 fixed n 1/4000s 2.6 Y n
15.
 
Panasonic GF1optional n 3.0 460 fixed n 1/4000s 3.0 Y n
16.
 
Panasonic GH11440 n 3.0 460 swivel n 1/4000s 3.0 Y n
17.
 
Sony A900optical Y 3.0 922 fixed n 1/8000s 5.0 n Y

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The S1 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 S1 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 Panasonic S1 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 S1 uses SDHC or XQD cards. The S1 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 S1 supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the E-P1 cannot take advantage of Ultra High Speed SD cards.

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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 Panasonic Lumix DC-S1 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
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Olympus E-P1Ystereo---mini2.0---
2.
 
Panasonic S1YstereomonoYYfull3.1Y-Y
3.
 
Canon R6YmonomonoYYmicro3.2Y-Y
4.
 
Olympus E-P3Ystereo---mini2.0---
5.
 
Olympus E-PL2Ystereo---mini2.0---
6.
 
Olympus E-PL3Ystereo---mini2.0---
7.
 
Olympus E-PL1Ystereo---mini2.0---
8.
 
Olympus E-620Y-----2.0---
9.
 
Olympus E-P2Ystereo---mini2.0---
10.
 
Olympus E-520Y-----2.0---
11.
 
Panasonic S5YstereomonoYYmicro3.2Y-Y
12.
 
Panasonic S1RYstereomonoYYfull3.1Y-Y
13.
 
Panasonic S1HYstereomonoYYfull3.1Y-Y
14.
 
Panasonic G10Ymono---mini2.0---
15.
 
Panasonic GF1Ymonomono--mini2.0---
16.
 
Panasonic GH1Ystereo-Y-mini2.0---
17.
 
Sony A900Y----mini2.0---

It is notable that the S1 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 Panasonic S1 (unlike the E-P1) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The S1 is a recent model that features in the current product line-up of Panasonic. 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 Panasonic websites.

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Review summary

So how do things add up? Which of the two cameras – the Olympus E-P1 or the Panasonic S1 – 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 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 149x110mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 662g or 65 percent) and hence easier to carry around.
  • More affordable: Was introduced into a lower priced category (68 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in June 2009).

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Arguments in favor of the Panasonic Lumix DC-S1:

  • More detail: Has more megapixels (24 vs 12.2MP), which boosts linear resolution by 43%.
  • 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 (40 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (3.8 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (4.1 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/60p vs 720/30p).
  • 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.
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (2100k vs 230k dots).
  • More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or 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 (9 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 (400 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 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: Has an SD card interface that supports the UHS-II standard.
  • More modern: Reflects 9 years and 7 months of technical progress since the E-P1 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the S1 is the clear winner of the contest (31 : 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 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-P1 05:31 S1

How about other alternatives? Do the specifications of the Olympus E-P1 and the Panasonic S1 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-P1 or the S1 perform in practice. 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 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], 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 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Olympus E-P1..+66/1004/54.5/5 Jun 2009 799 i
2.
 
Panasonic S14.5/5+ +88/1004.5/54/5 Feb 2019 2,499 i
3.
 
Canon R65/5+ +90/1004.5/55/5 Jul 2020 2,499 i
4.
 
Olympus E-P3..83/10074/1004.5/54.5/5 Jun 2011 799 i
5.
 
Olympus E-PL23/583/10071/1004.5/54.5/5 Jan 2011 599 i
6.
 
Olympus E-PL33/5+ +72/1004.5/54/5 Jun 2011 599 i
7.
 
Olympus E-PL1..86/10069/1004/54.5/5 Feb 2010 599 i
8.
 
Olympus E-6203/588/10072/1004.5/55/5 Feb 2009 699 i
9.
 
Olympus E-P23/5+69/1004/54.5/5 Nov 2009 799 i
10.
 
Olympus E-520..87/100+ +4.5/54.5/5 May 2008 699 i
11.
 
Panasonic S54.5/5+ +88/1004.5/54.5/5 Sep 2020 1,999 i
12.
 
Panasonic S1R4.5/5..89/1004.5/54.5/5 Feb 2019 3,699 i
13.
 
Panasonic S1H....90/100.... May 2019 3,999 i
14.
 
Panasonic G103/5..70/1004/54/5 Mar 2010 499 i
15.
 
Panasonic GF1..85/10069/1004.5/54.5/5 Sep 2009 749 i
16.
 
Panasonic GH1..+ +72/1004.5/54.5/5 Mar 2009 899 i
17.
 
Sony A900..+ ++ +4.5/55/5 Sep 2008 2,999 i
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-P1:
Check Ebay offers
Panasonic S1:
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-P1 vs Panasonic S1

    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 Panasonic S1
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Micro Four Thirds lenses Leica L mount lenses
    Launch Date June 2009 February 2019
    Launch Price USD 799 USD 2,499
    Sensor Specs Olympus E-P1 Panasonic S1
    Sensor Technology CMOS 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 12.2 Megapixels 24 Megapixels
    Image Resolution 4032 x 3024 pixels 6000 x 4000 pixels
    Pixel Pitch 4.29 μm 5.94 μm
    Pixel Density 5.42 MP/cm2 2.83 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 720/30p Video 4K/60p Video
    ISO Setting 100 - 6,400 ISO 100 - 51,200 ISO
    ISO Boost no Enhancement 50 - 204,800 ISO
    Image Processor TruePic V Venus
    DXO Sensor Quality (score) 55 95
    DXO Color Depth (bits) 21.4 25.2
    DXO Dynamic Range (EV) 10.4 14.5
    DXO Low Light (ISO) 536 3333
    Screen Specs Olympus E-P1 Panasonic S1
    Viewfinder Type no viewfinder Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.78x
    Viewfinder Resolution 5760k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.2inch
    LCD Resolution 230k dots 2100k dots
    LCD Attachment Fixed screen Fully flexible screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Olympus E-P1 Panasonic S1
    Focus System Contrast-detect AF Contrast-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 3 shutter flaps/s 9 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/8000s
    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 or XQD cards
    Second Storage Option Single card slot Dual card slots
    UHS card support no UHS-II
    Connectivity Specs Olympus E-P1 Panasonic S1
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.1
    HDMI Port mini HDMI full HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi Wifi built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Olympus E-P1 Panasonic S1
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type BLS-1 DMW-BLJ31
    Battery Life (CIPA)300 shots per charge400 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)
    149 x 110 x 97 mm
    (5.9 x 4.3 x 3.8 in)
    Camera Weight 355 g (12.5 oz) 1017 g (35.9 oz)

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