Olympus E-P3 vs Panasonic GM1
The Olympus PEN E-P3 and the Panasonic Lumix DMC-GM1 are two digital cameras that were revealed to the public, respectively, in June 2011 and October 2013. Both the E-P3 and the GM1 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 15.8 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus PEN E-P3 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
An illustration of the physical size and weight of the Olympus E-P3 and the Panasonic GM1 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth dimensions are rounded to the nearest millimeter.
The E-P3 can be obtained in three different colors (black, silver, white), while the GM1 is also available in three color-versions, but different ones (black, silver, red).
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 (35 percent) than the Olympus E-P3. Moreover, the GM1 is substantially lighter (45 percent) than the E-P3. In this context, it is worth noting that neither the E-P3 nor the GM1 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.
Concerning battery life, the E-P3 gets 330 shots out of its Olympus BLS-5 battery, while the GM1 can take 230 images on a single charge of its Panasonic DMW-BLH7 power pack.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.
Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Olympus E-P3 | 122 mm | 69 mm | 34 mm | 369 g | 330 | n | Jun 2011 | US$ 799 | ebay.com | |
2. | Panasonic GM1 | 99 mm | 55 mm | 30 mm | 204 g | 230 | n | Oct 2013 | US$ 749 | ebay.com | |
3. | Olympus E-P1 | 121 mm | 70 mm | 36 mm | 355 g | 300 | n | Jun 2009 | US$ 799 | ebay.com | |
4. | Olympus E-P2 | 121 mm | 70 mm | 36 mm | 355 g | 300 | n | Nov 2009 | US$ 799 | ebay.com | |
5. | Olympus E-P5 | 122 mm | 69 mm | 37 mm | 420 g | 330 | n | May 2013 | US$ 999 | ebay.com | |
6. | Olympus E-PL1 | 115 mm | 72 mm | 42 mm | 334 g | 290 | n | Feb 2010 | US$ 599 | ebay.com | |
7. | Olympus E-PL2 | 114 mm | 72 mm | 42 mm | 362 g | 280 | n | Jan 2011 | US$ 599 | ebay.com | |
8. | Olympus E-PL3 | 110 mm | 64 mm | 37 mm | 313 g | 300 | n | Jun 2011 | US$ 599 | ebay.com | |
9. | Olympus E-PL5 | 111 mm | 64 mm | 38 mm | 325 g | 360 | n | Sep 2012 | US$ 599 | ebay.com | |
10. | Olympus E-PM1 | 110 mm | 64 mm | 34 mm | 265 g | 330 | n | Jun 2011 | US$ 499 | ebay.com | |
11. | Panasonic G6 | 122 mm | 85 mm | 71 mm | 390 g | 340 | n | Apr 2013 | US$ 599 | ebay.com | |
12. | Panasonic G10 | 124 mm | 84 mm | 74 mm | 388 g | 380 | n | Mar 2010 | US$ 499 | ebay.com | |
13. | Panasonic GH2 | 124 mm | 90 mm | 76 mm | 442 g | 330 | n | Sep 2010 | US$ 899 | ebay.com | |
14. | Panasonic GM5 | 99 mm | 60 mm | 36 mm | 211 g | 220 | n | Sep 2014 | US$ 749 | ebay.com | |
15. | Panasonic GX1 | 116 mm | 68 mm | 39 mm | 318 g | 320 | n | Nov 2011 | US$ 699 | ebay.com | |
16. | Panasonic GX7 | 123 mm | 71 mm | 55 mm | 402 g | 350 | n | Aug 2013 | US$ 999 | ebay.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 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 GM1 was somewhat cheaper (by 6 percent) than the E-P3 at launch, but both cameras fall into the same price category. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.
Sensor comparison
The 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 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.
While the two cameras under review share the same sensor size, the GM1 offers a higher resolution of 15.8 megapixels, compared with 12.2 MP of the E-P3. This megapixels advantage translates into a 14 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 4.29μm for the E-P3). However, it should be noted that the GM1 is much more recent (by 2 years and 3 months) than the E-P3, 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 inches or 58.3 x 43.8 cm, for very good quality (250 dpi) 18.4 x 13.8 inches or 46.7 x 35 cm, and for excellent quality (300 dpi) 15.3 x 11.5 inches or 38.9 x 29.2 cm. The corresponding values for the Olympus E-P3 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 Olympus PEN E-P3 has a native sensitivity range from ISO 200 to ISO 12800. 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.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
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 GM1 offers substantially better image quality than the E-P3 (overall score 15 points higher). The advantage is based on 1.5 bits higher color depth, 1.6 EV in additional dynamic range, and 0.3 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.
Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Olympus E-P3 | Four Thirds | 12.2 | 4032 | 3024 | 1080/60i | 20.8 | 10.1 | 536 | 51 | |
2. | Panasonic GM1 | Four Thirds | 15.8 | 4592 | 3448 | 1080/60i | 22.3 | 11.7 | 660 | 66 | |
3. | Olympus E-P1 | Four Thirds | 12.2 | 4032 | 3024 | 720/30p | 21.4 | 10.4 | 536 | 55 | |
4. | Olympus E-P2 | Four Thirds | 12.2 | 4032 | 3024 | 720/30p | 21.5 | 10.4 | 505 | 56 | |
5. | Olympus E-P5 | Four Thirds | 15.9 | 4608 | 3456 | 1080/30p | 22.8 | 12.4 | 895 | 72 | |
6. | Olympus E-PL1 | Four Thirds | 12.2 | 4032 | 3024 | 720/30p | 21.5 | 10.1 | 487 | 54 | |
7. | Olympus E-PL2 | Four Thirds | 12.2 | 4032 | 3024 | 720/30p | 21.4 | 10.2 | 573 | 55 | |
8. | Olympus E-PL3 | Four Thirds | 12.2 | 4032 | 3024 | 1080/60i | 20.9 | 10.3 | 499 | 52 | |
9. | Olympus E-PL5 | Four Thirds | 15.9 | 4608 | 3456 | 1080/30p | 22.8 | 12.3 | 889 | 72 | |
10. | Olympus E-PM1 | Four Thirds | 12.2 | 4032 | 3024 | 1080/60i | 21.0 | 10.3 | 499 | 52 | |
11. | Panasonic G6 | Four Thirds | 15.9 | 4608 | 3456 | 1080/60p | 21.3 | 11.5 | 639 | 61 | |
12. | Panasonic G10 | Four Thirds | 12.0 | 4000 | 3000 | 720/30p | 21.2 | 10.1 | 411 | 52 | |
13. | Panasonic GH2 | Four Thirds | 15.9 | 4608 | 3456 | 1080/60i | 21.2 | 11.3 | 655 | 60 | |
14. | Panasonic GM5 | Four Thirds | 15.8 | 4592 | 3448 | 1080/60p | 22.1 | 11.7 | 721 | 66 | |
15. | Panasonic GX1 | Four Thirds | 15.8 | 4592 | 3448 | 1080/60p | 20.8 | 10.6 | 703 | 55 | |
16. | Panasonic GX7 | Four Thirds | 15.8 | 4592 | 3448 | 1080/60p | 22.6 | 12.2 | 718 | 70 |
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, and both provide the same movie specifications (1080/60i).
Feature comparison
Apart from body and sensor, cameras can and do differ across a range of features. The E-P3 and the GM1 are similar in the sense that neither of the two has a viewfinder. The images are, thus, framed using live view on the rear LCD. That said, the E-P3 can be equipped with an optional viewfinder – the VF-3. The following table reports on some other key feature differences and similarities of the Olympus E-P3, the Panasonic GM1, and comparable cameras.
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-P3 | optional | n | 3.0 / 614 | fixed | Y | 1/4000s | 3.0/s | Y | Y | |
2. | Panasonic GM1 | none | n | 3.0 / 1036 | fixed | Y | 1/500s | 5.0/s | Y | n | |
3. | Olympus E-P1 | none | n | 3.0 / 230 | fixed | n | 1/4000s | 3.0/s | n | Y | |
4. | Olympus E-P2 | optional | n | 3.0 / 230 | fixed | n | 1/4000s | 3.0/s | n | Y | |
5. | Olympus E-P5 | optional | n | 3.0 / 1037 | tilting | Y | 1/8000s | 9.0/s | Y | Y | |
6. | Olympus E-PL1 | optional | n | 2.7 / 230 | fixed | n | 1/2000s | 3.0/s | Y | Y | |
7. | Olympus E-PL2 | optional | n | 3.0 / 460 | fixed | n | 1/4000s | 3.0/s | Y | Y | |
8. | Olympus E-PL3 | optional | n | 3.0 / 460 | tilting | n | 1/4000s | 5.5/s | n | Y | |
9. | Olympus E-PL5 | optional | n | 3.0 / 460 | tilting | Y | 1/4000s | 8.0/s | n | Y | |
10. | Olympus E-PM1 | optional | n | 3.0 / 460 | fixed | n | 1/4000s | 5.5/s | n | Y | |
11. | Panasonic G6 | 1440 | n | 3.0 / 1036 | swivel | Y | 1/4000s | 7.0/s | Y | n | |
12. | Panasonic G10 | 202 | n | 3.0 / 460 | fixed | n | 1/4000s | 2.6/s | Y | n | |
13. | Panasonic GH2 | 1534 | n | 3.0 / 460 | swivel | n | 1/4000s | 3.0/s | Y | n | |
14. | Panasonic GM5 | 1166 | n | 3.0 / 921 | fixed | Y | 1/500s | 5.8/s | n | n | |
15. | Panasonic GX1 | optional | n | 3.0 / 460 | fixed | Y | 1/4000s | 4.2/s | Y | n | |
16. | Panasonic GX7 | 2760 | n | 3.0 / 1040 | tilting | Y | 1/8000s | 5.0/s | Y | Y | |
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one. |
One feature that differentiates the E-P3 and the GM1 is in-body image stabilization (IBIS). The E-P3 reduces the risk of handshake-induced blur with all attached lenses, while the GM1 offers no blur reduction with lenses that themselves do not provide optical image stabilization.
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.
Concerning the storage of imaging data, both the E-P3 and the GM1 write their files to SDXC cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.
Connectivity comparison
For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Olympus PEN E-P3 and Panasonic Lumix DMC-GM1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Camera Model |
Hotshoe Port |
Internal Mic / Speaker |
Microphone Port |
Headphone Port |
HDMI Port |
USB Port |
WiFi Support |
NFC Support |
Bluetooth Support |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Olympus E-P3 | Y | stereo / - | - | - | mini | 2.0 | - | - | - | |
2. | Panasonic GM1 | - | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
3. | Olympus E-P1 | Y | stereo / - | - | - | mini | 2.0 | - | - | - | |
4. | Olympus E-P2 | Y | stereo / - | - | - | mini | 2.0 | - | - | - | |
5. | Olympus E-P5 | Y | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
6. | Olympus E-PL1 | Y | stereo / - | - | - | mini | 2.0 | - | - | - | |
7. | Olympus E-PL2 | Y | stereo / - | - | - | mini | 2.0 | - | - | - | |
8. | Olympus E-PL3 | Y | stereo / - | - | - | mini | 2.0 | - | - | - | |
9. | Olympus E-PL5 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
10. | Olympus E-PM1 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
11. | Panasonic G6 | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | - | |
12. | Panasonic G10 | Y | mono / - | - | - | mini | 2.0 | - | - | - | |
13. | Panasonic GH2 | Y | stereo / mono | Y | - | mini | 2.0 | - | - | - | |
14. | Panasonic GM5 | Y | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
15. | Panasonic GX1 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
16. | Panasonic GX7 | Y | stereo / mono | - | - | mini | 2.0 | Y | Y | - |
It is notable that the E-P3 has a hotshoe, while the GM1 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.
Both the E-P3 and the GM1 have been discontinued, but can regularly be found used on ebay. The E-P3 was replaced by the Olympus E-P5, while the GM1 was followed by the Panasonic GM5. Further information on the features and operation of the E-P3 and GM1 can be found, respectively, in the Olympus E-P3 Manual (free pdf) or the online Panasonic GM1 Manual.
Review summary
So how do things add up? Is the Olympus E-P3 better than the Panasonic GM1 or vice versa? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the Olympus PEN E-P3:
- More framing options: Can be equipped with a hotshoe-mounted accessory-viewfinder.
- Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/500s) to freeze action.
- Longer lasting: Can take more shots (330 versus 230) on a single battery charge.
- Sharper images: Has hand-shake reducing image stabilization built-in.
- Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- More heavily discounted: Has been available for much longer (launched in June 2011).
Arguments in favor of the Panasonic Lumix DMC-GM1:
- More detail: Has more megapixels (15.8 vs 12.2MP), which boosts linear resolution by 14%.
- Better image quality: Scores substantially higher (15 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (1.5 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (1.6 EV of extra DR).
- More detailed LCD: Has a higher resolution rear screen (1036k vs 614k dots).
- 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 122x69mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 165g or 45 percent) and is thus easier to take along.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- More modern: Reflects 2 years and 3 months of technical progress since the E-P3 launch.
If the number of relative strengths (bullet points above) is taken as a guide, the GM1 is the clear winner of the contest (12 : 6 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 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.
How about other alternatives? Do the specifications of the Olympus E-P3 and the Panasonic GM1 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 partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the E-P3 or the GM1. 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 why expert reviews are important. The following table reports the overall ratings of the cameras as published by some of the major 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.
Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Olympus E-P3 | .. | 83/100 | .. | 74/100 | 4.5/5 | 4.5/5 | Jun 2011 | US$ 799 | ebay.com | |
2. | Panasonic GM1 | 3/5 | + | .. | 78/100 | 5/5 | 4.5/5 | Oct 2013 | US$ 749 | ebay.com | |
3. | Olympus E-P1 | .. | + | .. | 66/100 | 4/5 | 4.5/5 | Jun 2009 | US$ 799 | ebay.com | |
4. | Olympus E-P2 | 3/5 | + | .. | 69/100 | 4/5 | 4.5/5 | Nov 2009 | US$ 799 | ebay.com | |
5. | Olympus E-P5 | 5/5 | + + | .. | 78/100 | 4.5/5 | 5/5 | May 2013 | US$ 999 | ebay.com | |
6. | Olympus E-PL1 | .. | 86/100 | .. | 69/100 | 4/5 | 4.5/5 | Feb 2010 | US$ 599 | ebay.com | |
7. | Olympus E-PL2 | 3/5 | 83/100 | .. | 71/100 | 4.5/5 | 4.5/5 | Jan 2011 | US$ 599 | ebay.com | |
8. | Olympus E-PL3 | 3/5 | + + | .. | 72/100 | 4.5/5 | 4/5 | Jun 2011 | US$ 599 | ebay.com | |
9. | Olympus E-PL5 | 3/5 | + + | .. | .. | 4.5/5 | 4.5/5 | Sep 2012 | US$ 599 | ebay.com | |
10. | Olympus E-PM1 | .. | 86/100 | .. | 71/100 | 4.5/5 | 4.5/5 | Jun 2011 | US$ 499 | ebay.com | |
11. | Panasonic G6 | 4/5 | + + | .. | .. | 5/5 | 4.5/5 | Apr 2013 | US$ 599 | ebay.com | |
12. | Panasonic G10 | 3/5 | .. | .. | 70/100 | 4/5 | 4/5 | Mar 2010 | US$ 499 | ebay.com | |
13. | Panasonic GH2 | 5/5 | + + | .. | 79/100 | 4.5/5 | 5/5 | Sep 2010 | US$ 899 | ebay.com | |
14. | Panasonic GM5 | 3.5/5 | + | .. | 77/100 | 5/5 | 4.5/5 | Sep 2014 | US$ 749 | ebay.com | |
15. | Panasonic GX1 | 3/5 | + | .. | 77/100 | 4.5/5 | 4.5/5 | Nov 2011 | US$ 699 | ebay.com | |
16. | Panasonic GX7 | 4/5 | + | .. | 79/100 | 5/5 | 5/5 | Aug 2013 | US$ 999 | ebay.com | |
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
The review scores listed above should be treated with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. Thus, a score needs to be put into the context of the launch date and the launch price 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, please note that some of the review sites have changed their methodology and reporting over time.
Other camera comparisons
Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just use the search menu 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.
- Canon 350D vs Panasonic GM1
- Canon RP vs Olympus E-P3
- Canon T5i vs Olympus E-P3
- Leica V-LUX 1 vs Panasonic GM1
- Leica V-LUX 5 vs Olympus E-P3
- Nikon D2X vs Panasonic GM1
- Olympus E-500 vs Olympus E-P3
- Olympus E-P3 vs Sigma fp
- Olympus E-P3 vs Sony A7 IV
- Olympus E-PL8 vs Panasonic GM1
- Panasonic GM1 vs Sony A7S II
- Panasonic GM1 vs Sony H200
Specifications: Olympus E-P3 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 Model | Olympus E-P3 | Panasonic GM1 |
---|---|---|
Camera Type | Mirrorless system camera | Mirrorless system camera |
Camera Lens | Micro Four Thirds lenses | Micro Four Thirds lenses |
Launch Date | June 2011 | October 2013 |
Launch Price | USD 799 | USD 749 |
Sensor Specs | Olympus E-P3 | Panasonic GM1 |
Sensor Technology | CMOS | 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 | 12.2 Megapixels | 15.8 Megapixels |
Image Resolution | 4032 x 3024 pixels | 4592 x 3448 pixels |
Pixel Pitch | 4.29 μm | 3.77 μm |
Pixel Density | 5.42 MP/cm2 | 7.04 MP/cm2 |
Moiré control | Anti-Alias filter | Anti-Alias filter |
Movie Capability | 1080/60i Video | 1080/60i Video |
ISO Setting | 200 - 12,800 ISO | 200 - 25,600 ISO |
ISO Boost | no Enhancement | 125 - 25,600 ISO |
Image Processor | TruePic VI | Venus IX |
DXO Sensor Quality (score) | 51 | 66 |
DXO Color Depth (bits) | 20.8 | 22.3 |
DXO Dynamic Range (EV) | 10.1 | 11.7 |
DXO Low Light (ISO) | 536 | 660 |
Screen Specs | Olympus E-P3 | Panasonic GM1 |
Viewfinder Type | Viewfinder optional | no viewfinder |
LCD Framing | Live View | Live View |
Rear LCD Size | 3.0inch | 3.0inch |
LCD Resolution | 614k dots | 1036k dots |
LCD Attachment | Fixed screen | Fixed screen |
Touch Input | Touchscreen | Touchscreen |
Shooting Specs | Olympus E-P3 | Panasonic GM1 |
Focus System | Contrast-detect AF | Contrast-detect AF |
Manual Focusing Aid | no Peaking Feature | Focus Peaking |
Max Shutter Speed (mechanical) | 1/4000s | 1/500s |
Continuous Shooting | 3 shutter flaps/s | 5 shutter flaps/s |
Electronic Shutter | no E-Shutter | up to 1/16000s |
Time-Lapse Photography | no Intervalometer | Intervalometer built-in |
Image Stabilization | In-body stabilization | Lens stabilization only |
Fill Flash | Built-in Flash | Built-in Flash |
Storage Medium | SDXC cards | SDXC cards |
Single or Dual Card Slots | Single card slot | Single card slot |
UHS card support | UHS-I | UHS-I |
Connectivity Specs | Olympus E-P3 | Panasonic GM1 |
External Flash | Hotshoe | no Hotshoe |
USB Connector | USB 2.0 | USB 2.0 |
HDMI Port | mini HDMI | micro HDMI |
Wifi Support | no Wifi | Wifi built-in |
Body Specs | Olympus E-P3 | Panasonic GM1 |
Battery Type | Olympus BLS-5 | Panasonic DMW-BLH7 |
Battery Life (CIPA) | 330 shots per charge | 230 shots per charge |
Body Dimensions |
122 x 69 x 34 mm (4.8 x 2.7 x 1.3 in) |
99 x 55 x 30 mm (3.9 x 2.2 x 1.2 in) |
Camera Weight | 369 g (13.0 oz) | 204 g (7.2 oz) |
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