Olympus E-P1 vs Panasonic G1
The Olympus PEN E-P1 and the Panasonic Lumix DMC-G1 are two digital cameras that were announced, respectively, in June 2009 and September 2008. Both the E-P1 and the G1 are mirrorless interchangeable lens cameras that are equipped with a Four Thirds sensor. The Olympus has a resolution of 12.2 megapixels, whereas the Panasonic provides 12 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Olympus E-P1||Panasonic G1|
|Mirrorless system camera||Mirrorless system camera|
|Micro Four Thirds lenses||Micro Four Thirds lenses|
|12.2 MP, Four Thirds Sensor||12 MP, Four Thirds Sensor|
|720/30p Video||no Video|
|ISO 100-6400||ISO 100-1600 (100-3200)|
|No viewfinder, LCD framing||Electronic viewfinder (1440k dots)|
|3.0" LCD, 230k dots||3.0" LCD, 460k dots|
|Fixed screen (not touch-sensitive)||Swivel screen (not touch-sensitive)|
|3 shutter flaps per second||3 shutter flaps per second|
|In-body stabilization||Lens stabilization only|
|300 shots per battery charge||410 shots per battery charge|
|121 x 70 x 36 mm, 355 g||124 x 84 x 45 mm, 360 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus PEN E-P1 and the Panasonic Lumix DMC-G1? 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-P1 vs Panasonic G1
The physical size and weight of the Olympus E-P1 and the Panasonic G1 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth dimensions are rounded to the nearest millimeter.
The E-P1 can be obtained in three different colors (black, silver, white), while the G1 is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic G1 is notably larger (23 percent) than the Olympus E-P1. Moreover, the G1 is slightly heavier (1 percent) than the E-P1. In this context, it is worth noting that neither the E-P1 nor the G1 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 adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.
|Olympus E-P1»||4.8 in||2.8 in||1.4 in||12.5 oz||300||n||Jun 2009||799||-||Olympus E-P1|
|Panasonic G1«||4.9 in||3.3 in||1.8 in||12.7 oz||410||n||Sep 2008||599||-||Panasonic G1|
|Olympus E-P3« »||4.8 in||2.7 in||1.3 in||13.0 oz||330||n||Jun 2011||799||-||Olympus E-P3|
|Olympus E-PL2« »||4.5 in||2.8 in||1.7 in||12.8 oz||280||n||Jan 2011||599||-||Olympus E-PL2|
|Olympus E-PL3« »||4.3 in||2.5 in||1.5 in||11.0 oz||300||n||Jun 2011||599||-||Olympus E-PL3|
|Olympus E-PL1« »||4.5 in||2.8 in||1.7 in||11.8 oz||290||n||Feb 2010||599||-||Olympus E-PL1|
|Olympus E-620« »||5.1 in||3.7 in||2.4 in||18.4 oz||500||n||Feb 2009||699||-||Olympus E-620|
|Olympus E-P2« »||4.8 in||2.8 in||1.4 in||12.5 oz||300||n||Nov 2009||799||-||Olympus E-P2|
|Olympus E-520« »||5.4 in||3.6 in||2.7 in||18.9 oz||750||n||May 2008||699||-||Olympus E-520|
|Olympus E-410« »||5.1 in||3.6 in||2.1 in||15.3 oz||500||n||Mar 2007||699||-||Olympus E-410|
|Panasonic G10« »||4.9 in||3.3 in||2.9 in||13.7 oz||380||n||Mar 2010||499||-||Panasonic G10|
|Panasonic G2« »||4.9 in||3.3 in||2.9 in||15.1 oz||360||n||Mar 2010||599||-||Panasonic G2|
|Panasonic GF1« »||4.7 in||2.8 in||1.4 in||13.6 oz||380||n||Sep 2009||749||-||Panasonic GF1|
|Panasonic GH1« »||4.9 in||3.5 in||1.8 in||13.6 oz||300||n||Mar 2009||899||-||Panasonic GH1|
|Panasonic L10« »||5.3 in||3.8 in||3.1 in||19.6 oz||450||n||Aug 2007||599||-||Panasonic L10|
|Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.|
The price is, of course, an important factor in any camera decision. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The G1 was launched at a somewhat lower price (by 25 percent) than the E-P1, 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
Sensor comparison: Olympus E-P1 vs Panasonic G1
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 tend to be more expensive and 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.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors.
While the two cameras under review share the same sensor size, the E-P1 offers a slightly higher resolution of 12.2 megapixels, compared with 12 MP of the G1. This megapixels advantage translates into a 0.8 percent gain in linear resolution. On the other hand, these sensor specs imply that the E-P1 has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 4.29μm versus 4.33μm for the G1). In this context, it should be noted, however, that the E-P1 is a somewhat more recent model (by 9 months) than the G1, and its sensor might have benefitted from technological advances during this time that at least partly compensate for the smaller pixel size.
The Olympus PEN E-P1 has a native sensitivity range from ISO 100 to ISO 6400. The corresponding ISO settings for the Panasonic Lumix DMC-G1 are ISO 100 to ISO 1600, with the possibility to increase the ISO range to 100-3200.
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 Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Olympus E-P1»||Four Thirds||12.2||4032||3024||720/30p||21.4||10.4||536||55||Olympus E-P1|
|Panasonic G1«||Four Thirds||12.0||4000||3000||-||21.1||10.3||463||53||Panasonic G1|
|Olympus E-P3« »||Four Thirds||12.2||4032||3024||1080/60i||20.8||10.1||536||51||Olympus E-P3|
|Olympus E-PL2« »||Four Thirds||12.2||4032||3024||720/30p||21.4||10.2||573||55||Olympus E-PL2|
|Olympus E-PL3« »||Four Thirds||12.2||4032||3024||1080/60i||20.9||10.3||499||52||Olympus E-PL3|
|Olympus E-PL1« »||Four Thirds||12.2||4032||3024||720/30p||21.5||10.1||487||54||Olympus E-PL1|
|Olympus E-620« »||Four Thirds||12.2||4032||3024||-||21.3||10.3||536||55||Olympus E-620|
|Olympus E-P2« »||Four Thirds||12.2||4032||3024||720/30p||21.5||10.4||505||56||Olympus E-P2|
|Olympus E-520« »||Four Thirds||10.0||3648||2736||-||21.4||10.4||548||55||Olympus E-520|
|Olympus E-410« »||Four Thirds||10.0||3648||2736||-||21.1||10.0||494||51||Olympus E-410|
|Panasonic G10« »||Four Thirds||12.0||4000||3000||720/30p||21.2||10.1||411||52||Panasonic G10|
|Panasonic G2« »||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||493||53||Panasonic G2|
|Panasonic GF1« »||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||513||54||Panasonic GF1|
|Panasonic GH1« »||Four Thirds||12.0||4000||3000||1080/24p||21.6||11.6||772||64||Panasonic GH1|
|Panasonic L10« »||Four Thirds||10.0||3648||2736||-||21.3||10.8||429||55||Panasonic L10|
Many modern cameras cannot only take still pictures, but also record videos. The E-P1 indeed provides movie recording capabilities, while the G1 does not. The highest resolution format that the E-P1 can use is 720/30p.
Feature comparison: Olympus E-P1 vs Panasonic G1
Beyond body and sensor, cameras can and do differ across a range of features. For example, the G1 has an electronic viewfinder (1440k 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 Panasonic G1, and comparable cameras.
|Olympus E-P1»||-||n||3.0||230||fixed||n||1/4000s||3.0||n||Y||Olympus E-P1|
|Panasonic G1«||1440||n||3.0||460||swivel||n||1/4000s||3.0||Y||n||Panasonic G1|
|Olympus E-P3« »||-||n||3.0||614||fixed||Y||1/4000s||3.0||Y||Y||Olympus E-P3|
|Olympus E-PL2« »||-||n||3.0||460||fixed||n||1/4000s||3.0||Y||Y||Olympus E-PL2|
|Olympus E-PL3« »||-||n||3.0||460||tilting||n||1/4000s||5.5||n||Y||Olympus E-PL3|
|Olympus E-PL1« »||-||n||2.7||230||fixed||n||1/2000s||3.0||Y||Y||Olympus E-PL1|
|Olympus E-620« »||optical||n||2.7||230||swivel||n||1/4000s||4.0||Y||Y||Olympus E-620|
|Olympus E-P2« »||-||n||3.0||230||fixed||n||1/4000s||3.0||n||Y||Olympus E-P2|
|Olympus E-520« »||optical||n||2.7||215||fixed||n||1/4000s||3.5||Y||Y||Olympus E-520|
|Olympus E-410« »||optical||n||2.5||215||fixed||n||1/4000s||3.0||Y||n||Olympus E-410|
|Panasonic G10« »||202||n||3.0||460||fixed||n||1/4000s||2.6||Y||n||Panasonic G10|
|Panasonic G2« »||1440||n||3.0||460||swivel||Y||1/4000s||2.6||Y||n||Panasonic G2|
|Panasonic GF1« »||-||n||3.0||460||fixed||n||1/4000s||3.0||Y||n||Panasonic GF1|
|Panasonic GH1« »||1440||n||3.0||460||swivel||n||1/4000s||3.0||Y||n||Panasonic GH1|
|Panasonic L10« »||optical||n||2.5||207||swivel||n||1/4000s||3.0||Y||n||Panasonic L10|
One feature that differentiates the E-P1 and the G1 is in-body image stabilization (IBIS). The E-P1 reduces the risk of handshake-induced blur with all attached lenses, while the G1 has to rely on optical image stabilization in OIS-equipped lenses to achieve the same effect.The G1 has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the E-P1 does not have a selfie-screen.
Concerning the storage of imaging data, both the E-P1 and the G1 write their files to SDHC cards.
Connectivity comparison: Olympus E-P1 vs Panasonic G1
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 DMC-G1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Olympus E-P1»||Y||stereo||-||-||-||mini||2.0||-||-||-||Olympus E-P1|
|Panasonic G1«||Y||-||-||-||-||mini||2.0||-||-||-||Panasonic G1|
|Olympus E-P3« »||Y||stereo||-||-||-||mini||2.0||-||-||-||Olympus E-P3|
|Olympus E-PL2« »||Y||stereo||-||-||-||mini||2.0||-||-||-||Olympus E-PL2|
|Olympus E-PL3« »||Y||stereo||-||-||-||mini||2.0||-||-||-||Olympus E-PL3|
|Olympus E-PL1« »||Y||stereo||-||-||-||mini||2.0||-||-||-||Olympus E-PL1|
|Olympus E-620« »||Y||-||-||-||-||-||2.0||-||-||-||Olympus E-620|
|Olympus E-P2« »||Y||stereo||-||-||-||mini||2.0||-||-||-||Olympus E-P2|
|Olympus E-520« »||Y||-||-||-||-||-||2.0||-||-||-||Olympus E-520|
|Olympus E-410« »||Y||-||-||-||-||-||2.0||-||-||-||Olympus E-410|
|Panasonic G10« »||Y||mono||-||-||-||mini||2.0||-||-||-||Panasonic G10|
|Panasonic G2« »||Y||stereo||mono||-||-||mini||2.0||-||-||-||Panasonic G2|
|Panasonic GF1« »||Y||mono||mono||-||-||mini||2.0||-||-||-||Panasonic GF1|
|Panasonic GH1« »||Y||stereo||-||Y||-||mini||2.0||-||-||-||Panasonic GH1|
|Panasonic L10« »||Y||-||-||-||-||-||2.0||-||-||-||Panasonic L10|
Both the E-P1 and the G1 have been discontinued, but can regularly be found used on eBay. The G1 was replaced by the Panasonic G2, while the E-P1 was followed 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.
Review summary: Olympus E-P1 vs Panasonic G1
So what is the bottom line? Is there a clear favorite between the Olympus E-P1 and the Panasonic G1? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.
Reasons to prefer the Olympus PEN E-P1:
- Broader imaging potential: Can record not only still images but also 720/30p movies.
- More compact: Is smaller (121x70mm vs 124x84mm) and thus needs less room in the bag.
- Sharper images: Has hand-shake reducing image stabilization built-in.
- More modern: Is somewhat more recent (announced 9 months after the G1).
Arguments in favor of the Panasonic Lumix DMC-G1:
- Easier framing: Has an electronic viewfinder for image framing and settings control.
- More detailed LCD: Has a higher resolution rear screen (460k vs 230k dots).
- More flexible LCD: Has swivel screen for odd-angle shots in portrait or landscape orientation.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Longer lasting: Gets more shots (410 versus 300) out of a single battery charge.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- More affordable: Was released into a lower priced segment (25 percent cheaper at launch).
- More heavily discounted: Has been on the market for longer (launched in September 2008).
If the count of relative strengths (bullet points above) is taken as a measure, the G1 is the clear winner of the contest (8 : 4 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 wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.
How about other alternatives? Do the specifications of the Olympus E-P1 and the Panasonic G1 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera listing whether the two cameras rank among the cream of the crop.
In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains incomplete and does no justice, for example, to the way the E-P1 or the G1 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-P1 vs Panasonic G1
This is why hands-on reviews by experts are important. The following table reports the overall ratings of the cameras as published by some of the major camera 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.
|Olympus E-P1»||+||66/100||4/5||4/5||4.5/5||Jun 2009||799||-||Olympus E-P1|
|Panasonic G1«||+ +||70/100||4/5||4.5/5||4.5/5||Sep 2008||599||-||Panasonic G1|
|Olympus E-P3« »||83/100||74/100||4.5/5||4.5/5||4.5/5||Jun 2011||799||-||Olympus E-P3|
|Olympus E-PL2« »||83/100||71/100||4.5/5||4.5/5||4.5/5||Jan 2011||599||-||Olympus E-PL2|
|Olympus E-PL3« »||+ +||72/100||4.5/5||-||4/5||Jun 2011||599||-||Olympus E-PL3|
|Olympus E-PL1« »||86/100||69/100||4/5||4.5/5||4.5/5||Feb 2010||599||-||Olympus E-PL1|
|Olympus E-620« »||88/100||72/100||4.5/5||o||5/5||Feb 2009||699||-||Olympus E-620|
|Olympus E-P2« »||+||69/100||4/5||4.5/5||4.5/5||Nov 2009||799||-||Olympus E-P2|
|Olympus E-520« »||87/100||+ +||4.5/5||4/5||4.5/5||May 2008||699||-||Olympus E-520|
|Olympus E-410« »||86/100||+ +||4/5||o||4.5/5||Mar 2007||699||-||Olympus E-410|
|Panasonic G10« »||-||70/100||4/5||-||4/5||Mar 2010||499||-||Panasonic G10|
|Panasonic G2« »||-||72/100||4/5||4/5||4.5/5||Mar 2010||599||-||Panasonic G2|
|Panasonic GF1« »||85/100||69/100||4.5/5||4.5/5||4.5/5||Sep 2009||749||-||Panasonic GF1|
|Panasonic GH1« »||+ +||72/100||4.5/5||5/5||4.5/5||Mar 2009||899||-||Panasonic GH1|
|Panasonic L10« »||85/100||+||3.5/5||o||4/5||Aug 2007||599||-||Panasonic L10|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (-) not available.|
The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
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 Panasonic G1
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 Model||Olympus E-P1||Panasonic G1|
|Camera Type||Mirrorless system camera||Mirrorless system camera|
|Camera Lens||Micro Four Thirds lenses||Micro Four Thirds lenses|
|Launch Date||June 2009||September 2008|
|Launch Price||USD 799||USD 599|
|Sensor Specs||Olympus E-P1||Panasonic G1|
|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|
|Sensor Resolution||12.2 Megapixels||12 Megapixels|
|Image Resolution||4032 x 3024 pixels||4000 x 3000 pixels|
|Pixel Pitch||4.29 μm||4.33 μm|
|Pixel Density||5.42 MP/cm2||5.34 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||720/30p Video||no Video|
|ISO Setting||100-6400 ISO||100-1600 ISO|
|ISO Boost||no Enhancement||100-3200 ISO|
|Image Processor||TruePic V||Venus HD|
|DXO Sensor Quality (score)||55||53|
|DXO Color Depth (bits)||21.4||21.1|
|DXO Dynamic Range (EV)||10.4||10.3|
|DXO Low Light (ISO)||536||463|
|Screen Specs||Olympus E-P1||Panasonic G1|
|Viewfinder Type||No viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%|
|Viewfinder Resolution||1440k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0 inch||3.0 inch|
|LCD Resolution||230k dots||460k dots|
|LCD Attachment||Fixed screen||Swivel screen|
|Shooting Specs||Olympus E-P1||Panasonic G1|
|Autofocus System||Contrast-detect AF||Contrast-detect AF|
|Continuous Shooting||3 shutter flaps/s||3 shutter flaps/s|
|Image Stabilization||In-body stabilization||Lens stabilization only|
|Fill Flash||no On-Board Flash||Build-in Flash|
|Storage Medium||SDHC cards||SDHC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||no||no|
|Connectivity Specs||Olympus E-P1||Panasonic G1|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||mini HDMI|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Olympus E-P1||Panasonic G1|
|Battery Type||BLS-1 power pack||DMW-BLB13 power pack|
|Battery Life (CIPA)||300 shots per charge||410 shots per charge|
121 x 70 x 36 mm
(4.8 x 2.8 x 1.4 in)
124 x 84 x 45 mm
(4.9 x 3.3 x 1.8 in)
|Camera Weight||355 g (12.5 oz)||360 g (12.7 oz)|
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