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Olympus E-1 vs Panasonic GM1

The Olympus E-1 and the Panasonic Lumix DMC-GM1 are two digital cameras that were announced, respectively, in June 2003 and October 2013. The E-1 is a DSLR, while the GM1 is a mirrorless interchangeable lens camera. Both cameras are equipped with a Four Thirds sensor. The Olympus has a resolution of 4.9 megapixels, whereas the Panasonic provides 15.8 MP.

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

Headline Specifications
Olympus E-1   Panasonic GM1
Olympus E-1 Panasonic GM1
Digital single lens reflex Mirrorless system camera
Four Thirds lenses Micro Four Thirds lenses
4.9 MP, Four Thirds Sensor 15.8 MP, Four Thirds Sensor
no Video 1080/60i Video
ISO 100-800 (100-3200) ISO 200-25600
Optical viewfinder No viewfinder, LCD framing
1.8" LCD, 134k dots 3.0" LCD, 1036k dots
Fixed screen (not touch-sensitive) Fixed touchscreen
3 shutter flaps per second 5 shutter flaps per second
Weathersealed bodyNot weather sealed
750 shots per battery charge230 shots per battery charge
141 x 104 x 81 mm, 738 g 99 x 55 x 30 mm, 204 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus E-1 and the Panasonic Lumix DMC-GM1? 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: Olympus E-1 vs Panasonic GM1

The side-by-side display below illustrates the physical size and weight of the Olympus E-1 and the Panasonic GM1. 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 measures are rounded to the nearest millimeter.

The GM1 can be obtained in three different colors (black, silver, red), while the E-1 is only available in black.

Size Olympus E-1 vs Panasonic GM1
Compare E-1 versus GM1 top
Comparison E-1 or GM1 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic GM1 is considerably smaller (63 percent) than the Olympus E-1. Moreover, the GM1 is substantially lighter (72 percent) than the E-1. It is worth mentioning in this context that the E-1 is splash and dust resistant, while the GM1 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. Both cameras have similarly sized sensors, but DSLRs have a larger flange-to-focal plane distance than mirrorless cameras, which imposes contraints on the optical engineering process and generally leads to bigger and heavier lenses. You can compare the optics available for the two cameras in the Four Thirds Lens Catalog (E-1) and the Micro Four Thirds Lens Catalog (GM1). Mirrorless cameras, such as the GM1, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.

Concerning battery life, the E-1 gets 750 shots out of its BLM-1 battery, while the GM1 can take 230 images on a single charge of its DMW-BLH7 power pack.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. In case you want to display and compare another camera duo, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Olympus E-1» 5.6 in 4.1 in 3.2 in 26.0 oz 750 Y Jun 2003 1,699- i Olympus E-1
 
Panasonic GM1« 3.9 in 2.2 in 1.2 in 7.2 oz 230 n Oct 2013 749- i Panasonic GM1
 
Canon 6D Mark II« » 5.7 in 4.4 in 3.0 in 27.0 oz 1200 Y Jun 2017 1,999 i i Canon 6D Mark II
 
Canon 7D« » 5.8 in 4.4 in 2.9 in 30.3 oz 800 Y Sep 2009 1,699- i Canon 7D
 
Leica Digilux 3« » 5.7 in 3.4 in 3.0 in 21.4 oz 750 n Sep 2006 1,499- i Leica Digilux 3
 
Nikon D500« » 5.8 in 4.5 in 3.2 in 30.3 oz 1240 Y Jan 2016 1,999 i i Nikon D500
 
Nikon D610« » 5.6 in 4.4 in 3.2 in 30.0 oz 900 Y Oct 2013 1,999 i i Nikon D610
 
Nikon D7000« » 5.2 in 4.1 in 3.0 in 27.5 oz 1050 Y Sep 2010 1,499- i Nikon D7000
 
Olympus E-5« » 5.6 in 4.6 in 3.0 in 30.8 oz 750 Y Sep 2010 1,699- i Olympus E-5
 
Olympus E-3« » 5.6 in 4.6 in 3.0 in 30.9 oz 750 Y Oct 2007 1,699- i Olympus E-3
 
Olympus E-330« » 5.5 in 3.4 in 2.8 in 22.5 oz 750 n Jan 2006 999- i Olympus E-330
 
Olympus E-300« » 5.8 in 3.3 in 2.5 in 22.0 oz 750 n Sep 2004 799- i Olympus E-300
 
Panasonic GM5« » 3.9 in 2.4 in 1.4 in 7.4 oz 220 n Sep 2014 749- i Panasonic GM5
 
Panasonic G6« » 4.8 in 3.3 in 2.8 in 13.8 oz 340 n Apr 2013 599- i Panasonic G6
 
Panasonic GX7« » 4.8 in 2.8 in 2.2 in 14.2 oz 350 n Aug 2013 999- i Panasonic GX7
 
Panasonic GX1« » 4.6 in 2.7 in 1.5 in 11.2 oz 320 n Nov 2011 699- i Panasonic GX1
 
Panasonic GH2« » 4.9 in 3.5 in 3.0 in 15.6 oz 330 n Sep 2010 899- i Panasonic GH2
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

Any camera decision will obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The GM1 was launched at a markedly lower price (by 56 percent) than the E-1, 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.

 

Sensor comparison: Olympus E-1 vs Panasonic GM1

The size of the imaging sensor is a crucial determinant 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. 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.

Both cameras under consideration feature a Four Thirds sensor and have a format factor (sometimes also referred to as "crop factor") of 2.0. Within the spectrum of camera sensors, this places the review cameras among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.

Olympus E-1 and Panasonic GM1 sensor measures

While the two cameras under review share the same sensor size, the GM1 offers a higher resolution of 15.8 megapixels, compared with 4.9 MP of the E-1. This megapixels advantage translates into a 79 percent gain in linear resolution. On the other hand, these sensor specs imply that the GM1 has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.77μm versus 6.78μm for the E-1). However, it should be noted that the GM1 is much more recent (by 10 years and 3 months) than the E-1, and its sensor will have benefitted from technological advances during this time that compensate for the smaller pixel size.

The resolution advantage of the Panasonic GM1 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the GM1 for good quality output (200 dots per inch) amounts to 23 x 17.2 inch or 58.3 x 43.8 cm, for very good quality (250 dpi) 18.4 x 13.8 inch or 46.7 x 35 cm, and for excellent quality (300 dpi) 15.3 x 11.5 inch or 38.9 x 29.2 cm. The corresponding values for the Olympus E-1 are 12.8 x 9.6 inch or 32.5 x 24.4 cm for good quality, 10.2 x 7.7 inch or 26 x 19.5 cm for very good quality, and 8.5 x 6.4 inch or 21.7 x 16.3 cm for excellent quality prints.

The Olympus E-1 has a native sensitivity range from ISO 100 to ISO 800, which can be extended to ISO 100-3200. The corresponding ISO settings for the Panasonic Lumix DMC-GM1 are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 125-25600.

E-1 versus GM1 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"). The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
 
Olympus E-1» Four Thirds 4.9 2560 1920-----Olympus E-1
 
Panasonic GM1« Four Thirds 15.8 4592 34481080/60i22.311.766066Panasonic GM1
 
Canon 6D Mark II« » Full Frame 26.0 6240 41601080/60p24.411.9286285Canon 6D Mark II
 
Canon 7D« » APS-C 17.9 5184 34561080/30p22.011.785466Canon 7D
 
Leica Digilux 3« » Four Thirds 7.4 3136 2352-----Leica Digilux 3
 
Nikon D500« » APS-C 20.7 5568 37124K/30p24.014.0132483Nikon D500
 
Nikon D610« » Full Frame 24.2 6016 40161080/30p25.114.4292594Nikon D610
 
Nikon D7000« » APS-C 16.1 4928 326410800/24p23.513.9116780Nikon D7000
 
Olympus E-5« » Four Thirds 12.2 4032 3024720/30p21.610.551956Olympus E-5
 
Olympus E-3« » Four Thirds 10.0 3648 2736-21.610.557156Olympus E-3
 
Olympus E-330« » Four Thirds 7.4 3136 2352-----Olympus E-330
 
Olympus E-300« » Four Thirds 8.0 3264 2448-----Olympus E-300
 
Panasonic GM5« » Four Thirds 15.8 4592 34481080/60p22.111.772166Panasonic GM5
 
Panasonic G6« » Four Thirds 15.9 4608 34561080/60p21.311.563961Panasonic G6
 
Panasonic GX7« » Four Thirds 15.8 4592 34481080/60p22.612.271870Panasonic GX7
 
Panasonic GX1« » Four Thirds 15.8 4592 34481080/60p20.810.670355Panasonic GX1
 
Panasonic GH2« » Four Thirds 15.9 4608 34561080/60i21.211.365560Panasonic GH2

Many modern cameras cannot only take still pictures, but also record videos. The GM1 indeed provides for movie recording, while the E-1 does not. The highest resolution format that the GM1 can use is 1080/60i.

 

Feature comparison: Olympus E-1 vs Panasonic GM1

Apart from body and sensor, cameras can and do differ across a range of features. For example, the E-1 has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the GM1 relies on live view and the rear LCD for framing. The table below summarizes some of the other core capabilities of the Olympus E-1 and Panasonic GM1 in connection with corresponding information for a sample of similar cameras.

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
Camera
Model
 
Olympus E-1»optical Y 1.8 134 fixed n 1/4000s 3.0 n n Olympus E-1
 
Panasonic GM1«- n 3.0 1036 fixed Y 1/500s 5.0 Y n Panasonic GM1
 
Canon 6D Mark II« »optical Y 3.0 1040 swivel Y 1/4000s 6.5 n n Canon 6D Mark II
 
Canon 7D« »optical Y 3.0 920 fixed n 1/8000s 8.0 Y n Canon 7D
 
Leica Digilux 3« »optical n 2.5 207 fixed n 1/4000s 3.0 Y n Leica Digilux 3
 
Nikon D500« »optical Y 3.2 2359 tilting Y 1/8000s 10.0 n n Nikon D500
 
Nikon D610« »optical Y 3.2 921 fixed n 1/4000s 6.0 Y n Nikon D610
 
Nikon D7000« »optical Y 3.0 921 fixed n 1/8000s 6.0 Y n Nikon D7000
 
Olympus E-5« »optical Y 3.0 920 swivel n 1/8000s 5.0 Y Y Olympus E-5
 
Olympus E-3« »optical Y 2.5 230 swivel n 1/8000s 5.0 Y Y Olympus E-3
 
Olympus E-330« »optical n 2.5 215 tilting n 1/4000s 3.0 Y n Olympus E-330
 
Olympus E-300« »optical n 1.8 134 fixed n 1/4000s 2.5 Y n Olympus E-300
 
Panasonic GM5« »1166 n 3.0 921 fixed Y 1/500s 5.8 n n Panasonic GM5
 
Panasonic G6« »1440 n 3.0 1036 swivel Y 1/4000s 7.0 Y n Panasonic G6
 
Panasonic GX7« »2760 n 3.0 1040 tilting Y 1/8000s 5.0 Y Y Panasonic GX7
 
Panasonic GX1« »- n 3.0 460 fixed Y 1/4000s 4.2 Y n Panasonic GX1
 
Panasonic GH2« »1534 n 3.0 460 swivel n 1/4000s 3.0 Y n Panasonic GH2

One feature that is present on the E-1, but is missing on the GM1 is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.

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 GM1 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 GM1 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-1 writes its imaging data to Compact Flash or xD Picture cards, while the GM1 uses SDXC cards. The E-1 features dual card slots, which can be very useful in case a memory card fails. In contrast, the GM1 only has one slot.

 

Connectivity comparison: Olympus E-1 vs Panasonic GM1

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 E-1 and Panasonic Lumix DMC-GM1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Olympus E-1»Y-----2.0---Olympus E-1
 
Panasonic GM1«-stereomono--micro2.0Y--Panasonic GM1
 
Canon 6D Mark II« »YstereomonoY-mini2.0YYYCanon 6D Mark II
 
Canon 7D« »Ymono-Y-mini2.0---Canon 7D
 
Leica Digilux 3« »Ystereomono---2.0---Leica Digilux 3
 
Nikon D500« »YstereomonoYYmini3.0YYYNikon D500
 
Nikon D610« »YmonomonoYYmini2.0---Nikon D610
 
Nikon D7000« »YmonomonoY-mini2.0---Nikon D7000
 
Olympus E-5« »Ystereo---mini2.0---Olympus E-5
 
Olympus E-3« »Y-----2.0---Olympus E-3
 
Olympus E-330« »Y-----2.0---Olympus E-330
 
Olympus E-300« »Y-----2.0---Olympus E-300
 
Panasonic GM5« »Ystereomono--micro2.0Y--Panasonic GM5
 
Panasonic G6« »YstereomonoY-mini2.0YY-Panasonic G6
 
Panasonic GX7« »Ystereomono--mini2.0YY-Panasonic GX7
 
Panasonic GX1« »Ystereomono--mini2.0---Panasonic GX1
 
Panasonic GH2« »YstereomonoY-mini2.0---Panasonic GH2

It is notable that the E-1 has a hotshoe, while the GM1 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.

Studio photographers will appreciate that the Olympus E-1 (unlike the GM1) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the E-1 and the GM1 have been discontinued, but can regularly be found used on eBay. The E-1 was replaced by the Olympus E-3, while the GM1 was followed by the Panasonic GM5. 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.


Review summary: Olympus E-1 vs Panasonic GM1

So what is the bottom line? Is there a clear favorite between the Olympus E-1 and the Panasonic GM1? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

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Advantages of the Olympus E-1:

  • Easier framing: Has an optical viewfinder for image framing and settings control.
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/500s) to freeze action.
  • Longer lasting: Can take more shots (750 versus 230) on a single battery charge.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • 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.
  • More heavily discounted: Has been available for much longer (launched in June 2003).

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Reasons to prefer the Panasonic Lumix DMC-GM1:

  • More detail: Has more megapixels (15.8 vs 4.9MP), which boosts linear resolution by 79%.
  • Broader imaging potential: Can capture not only stills but also 1080/60i video.
  • Larger screen: Has a bigger rear LCD (3.0" vs 1.8") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1036k vs 134k dots).
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster burst: Shoots at higher frequency (5 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.
  • More compact: Is smaller (99x55mm vs 141x104mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 534g or 72 percent) and is thus easier to take along.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • More affordable: Was introduced into a lower priced category (56 percent cheaper at launch).
  • More modern: Reflects 10 years and 3 months of technical progress since the E-1 launch.

If the count of relative strengths (bullet points above) is taken as a measure, the GM1 is the clear winner of the contest (15 : 9 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-1 09:15 GM1

How about other alternatives? Do the specifications of the Olympus E-1 and the Panasonic GM1 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings 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 incomplete and does no justice, for example, to the way the E-1 or the GM1 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: Olympus E-1 vs Panasonic GM1

This is why hands-on reviews by experts are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Olympus E-1»-+oo- Jun 2003 1,699- i Olympus E-1
 
Panasonic GM1«+78/1005/54.5/54.5/5 Oct 2013 749- i Panasonic GM1
 
Canon 6D Mark II« »+80/1004.5/54/54/5 Jun 2017 1,999 i i Canon 6D Mark II
 
Canon 7D« »+ +84/1004.5/55/54.5/5 Sep 2009 1,699- i Canon 7D
 
Leica Digilux 3« »----- Sep 2006 1,499- i Leica Digilux 3
 
Nikon D500« »+ +91/1004.5/55/55/5 Jan 2016 1,999 i i Nikon D500
 
Nikon D610« »+ +87/1004.5/54.5/54.5/5 Oct 2013 1,999 i i Nikon D610
 
Nikon D7000« »-80/1004.5/55/54.5/5 Sep 2010 1,499- i Nikon D7000
 
Olympus E-5« »-75/1004/5-4.5/5 Sep 2010 1,699- i Olympus E-5
 
Olympus E-3« »88/100+ +oo4/5 Oct 2007 1,699- i Olympus E-3
 
Olympus E-330« »-+o3.5/5- Jan 2006 999- i Olympus E-330
 
Olympus E-300« »-+oo4.5/5 Sep 2004 799- i Olympus E-300
 
Panasonic GM5« »+77/1005/55/54.5/5 Sep 2014 749- i Panasonic GM5
 
Panasonic G6« »+ +-5/5-4.5/5 Apr 2013 599- i Panasonic G6
 
Panasonic GX7« »+79/1005/54.5/55/5 Aug 2013 999- i Panasonic GX7
 
Panasonic GX1« »+77/1004.5/54.5/54.5/5 Nov 2011 699- i Panasonic GX1
 
Panasonic GH2« »+ +79/1004.5/54.5/55/5 Sep 2010 899- i Panasonic GH2
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (-) not available.

The review scores listed above should be treated 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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Olympus E-1:
Check Ebay offers
Panasonic GM1:
Check Ebay offers

Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes below. 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-1 vs Panasonic GM1

    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-1 Panasonic GM1
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Four Thirds lenses Micro Four Thirds lenses
    Launch Date June 2003 October 2013
    Launch Price USD 1699 USD 749
    Sensor Specs Olympus E-1 Panasonic GM1
    Sensor Technology CCD CMOS
    Sensor Format Four Thirds Sensor Four Thirds Sensor
    Sensor Size 17.3 x 13.0 mm 17.3 x 13.0 mm
    Sensor Area 224.9 mm2 224.9 mm2
    Sensor Diagonal 21.6 mm 21.6 mm
    Crop Factor 2.0x 2.0x
    Sensor Resolution 4.9 Megapixels 15.8 Megapixels
    Image Resolution 2560 x 1920 pixels 4592 x 3448 pixels
    Pixel Pitch 6.78 μm 3.77 μm
    Pixel Density 2.19 MP/cm2 7.04 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability no Video 1080/60i Video
    ISO Setting 100-800 ISO 200-25600 ISO
    ISO Boost 100-3200 ISO 125-25600 ISO
    Image Processor TruePic Venus IX
    DXO Sensor Quality (score) .. 66
    DXO Color Depth (bits) .. 22.3
    DXO Dynamic Range (EV) .. 11.7
    DXO Low Light (ISO) .. 660
    Screen Specs Olympus E-1 Panasonic GM1
    Viewfinder Type Optical viewfinder No viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.48x
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View
    Rear LCD Size 1.8 inch 3.0 inch
    LCD Resolution 134k dots 1036k dots
    LCD Attachment Fixed screen Fixed screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Olympus E-1 Panasonic GM1
    Autofocus System Phase-detect AF Contrast-detect AF
    Manual Focusing AidNo Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000/s 1/500/s
    Continuous Shooting 3 shutter flaps/s 5 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/16000s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Fill Flash no On-Board Flash Build-in Flash
    Storage Medium CF or XD cards SDXC cards
    Second Storage Option Dual card slots Single card slot
    Connectivity Specs Olympus E-1 Panasonic GM1
    External Flash Hotshoe no Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 2.0 USB 2.0
    HDMI Port no HDMI micro HDMI
    Wifi Support no Wifi Wifi built-in
    Body Specs Olympus E-1 Panasonic GM1
    Environmental SealingWeathersealed bodyNot weather sealed
    Battery Type BLM-1 power pack DMW-BLH7 power pack
    Battery Life (CIPA)750 shots per charge230 shots per charge
    Body Dimensions 141 x 104 x 81 mm
    (5.6 x 4.1 x 3.2 in)
    99 x 55 x 30 mm
    (3.9 x 2.2 x 1.2 in)
    Camera Weight 738 g (26.0 oz) 204 g (7.2 oz)

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