Olympus E-P3 vs E-PM1
The Olympus PEN E-P3 and the Olympus PEN E-PM1 are two digital cameras that were revealed to the public in June 2011. Both the E-P3 and the E-PM1 are mirrorless interchangeable lens cameras that are equipped with a Four Thirds sensor. Both cameras offer a resolution of 12.2 megapixels.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Olympus E-P3||Olympus E-PM1|
|Mirrorless system camera||Mirrorless system camera|
|Micro Four Thirds lenses||Micro Four Thirds lenses|
|12.2 MP, Four Thirds Sensor||12.2 MP, Four Thirds Sensor|
|1080/60i Video||1080/60i Video|
|ISO 200-12800||ISO 100-12800|
|Viewfinder optional||Viewfinder optional|
|3.0" LCD, 614k dots||3.0" LCD, 460k dots|
|Fixed touchscreen||Fixed screen (not touch-sensitive)|
|3 shutter flaps per second||5.5 shutter flaps per second|
|In-body stabilization||In-body stabilization|
|330 shots per battery charge||330 shots per battery charge|
|122 x 69 x 34 mm, 369 g||110 x 64 x 34 mm, 265 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus PEN E-P3 and the Olympus PEN E-PM1? 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-P3 vs E-PM1
The physical size and weight of the Olympus E-P3 and the Olympus E-PM1 are illustrated 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 measures are rounded to the nearest millimeter.
The E-P3 can be obtained in three different colors (black, silver, white), while the E-PM1 is available in six color-versions (black, silver, brown, pink, purple, white).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-PM1 is notably smaller (16 percent) than the Olympus E-P3. Moreover, the E-PM1 is markedly lighter (28 percent) than the E-P3. In this context, it is worth noting that neither the E-P3 nor the E-PM1 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 following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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.
|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-PM1«||4.3 in||2.5 in||1.3 in||9.3 oz||330||n||Jun 2011||499||-||Olympus E-PM1|
|Olympus E-P5« »||4.8 in||2.7 in||1.5 in||14.8 oz||330||n||May 2013||999||-||Olympus E-P5|
|Olympus E-PL5« »||4.4 in||2.5 in||1.5 in||11.5 oz||360||n||Sep 2012||599||-||Olympus E-PL5|
|Olympus E-PM2« »||4.3 in||2.5 in||1.3 in||9.5 oz||360||n||Sep 2012||499||-||Olympus E-PM2|
|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-P1« »||4.8 in||2.8 in||1.4 in||12.5 oz||300||n||Jun 2009||799||-||Olympus E-P1|
|Olympus E-P2« »||4.8 in||2.8 in||1.4 in||12.5 oz||300||n||Nov 2009||799||-||Olympus E-P2|
|Panasonic GX1« »||4.6 in||2.7 in||1.5 in||11.2 oz||320||n||Nov 2011||699||-||Panasonic GX1|
|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|
|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 E-PM1 was launched at a markedly lower price (by 38 percent) than the E-P3, 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-P3 vs E-PM1
The size of the sensor inside a digital camera is one of the key determinants of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels in a sensor of the same technological generation. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its 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.
The two cameras under review do not only share the same sensor size, but also offer an identical resolution of 12.2 megapixels. This similarity in sensor specs implies that both the E-P3 and the E-PM1 have the same pixel density, as well as the same pixel size. Moreover, the two cameras were released in close succession, so that their sensors are from the same technological generation.
The Olympus PEN E-P3 has a native sensitivity range from ISO 200 to ISO 12800. The corresponding ISO settings for the Olympus PEN E-PM1 are ISO 100 to ISO 12800 (no boost).
For many cameras, data on sensor performance has been reported by DXO Mark. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. The Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
|Olympus E-P3»||Four Thirds||12.2||4032||3024||1080/60i||20.8||10.1||536||51||Olympus E-P3|
|Olympus E-PM1«||Four Thirds||12.2||4032||3024||1080/60i||21.0||10.3||499||52||Olympus E-PM1|
|Olympus E-P5« »||Four Thirds||15.9||4608||3456||1080/30p||22.8||12.4||895||72||Olympus E-P5|
|Olympus E-PL5« »||Four Thirds||15.9||4608||3456||1080/30p||22.8||12.3||889||72||Olympus E-PL5|
|Olympus E-PM2« »||Four Thirds||15.9||4608||3456||1080/30p||22.7||12.2||932||72||Olympus E-PM2|
|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-P1« »||Four Thirds||12.2||4032||3024||720/30p||21.4||10.4||536||55||Olympus E-P1|
|Olympus E-P2« »||Four Thirds||12.2||4032||3024||720/30p||21.5||10.4||505||56||Olympus E-P2|
|Panasonic GX1« »||Four Thirds||15.8||4592||3448||1080/60p||20.8||10.6||703||55||Panasonic GX1|
|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|
Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, and both provide the same movie specifications (1080/60i).
Feature comparison: Olympus E-P3 vs E-PM1
Apart from body and sensor, cameras can and do differ across a variety of features. The E-P3 and the E-PM1 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. However, optional viewfinders – the VF-3 for the E-P3 and the VF-2 for the E-PM1 – are available as accessories. The following table reports on some other key feature differences and similarities of the Olympus E-P3, the Olympus E-PM1, and comparable cameras.
|Olympus E-P3»||-||n||3.0||614||fixed||Y||1/4000s||3.0||Y||Y||Olympus E-P3|
|Olympus E-PM1«||-||n||3.0||460||fixed||n||1/4000s||5.5||n||Y||Olympus E-PM1|
|Olympus E-P5« »||-||n||3.0||1037||tilting||Y||1/8000s||9.0||Y||Y||Olympus E-P5|
|Olympus E-PL5« »||-||n||3.0||460||tilting||Y||1/4000s||8.0||n||Y||Olympus E-PL5|
|Olympus E-PM2« »||-||n||3.0||460||fixed||Y||1/4000s||8.0||n||Y||Olympus E-PM2|
|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-P1« »||-||n||3.0||230||fixed||n||1/4000s||3.0||n||Y||Olympus E-P1|
|Olympus E-P2« »||-||n||3.0||230||fixed||n||1/4000s||3.0||n||Y||Olympus E-P2|
|Panasonic GX1« »||-||n||3.0||460||fixed||Y||1/4000s||4.2||Y||n||Panasonic GX1|
|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|
One difference between the cameras concerns the presence of an on-board flash. The E-P3 has one, while the E-PM1 does not. While the built-in flash of the E-P3 is not very powerful, it can at times be useful as a fill-in light.
Concerning the storage of imaging data, both the E-P3 and the E-PM1 write their files to SDXC cards. The E-P3 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the E-PM1 cannot take advantage of Ultra High Speed SD cards.
Connectivity comparison: Olympus E-P3 vs E-PM1
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 Olympus PEN E-PM1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Olympus E-P3»||Y||stereo||-||-||-||mini||2.0||-||-||-||Olympus E-P3|
|Olympus E-PM1«||Y||stereo||mono||-||-||mini||2.0||-||-||-||Olympus E-PM1|
|Olympus E-P5« »||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Olympus E-P5|
|Olympus E-PL5« »||Y||stereo||mono||-||-||mini||2.0||-||-||-||Olympus E-PL5|
|Olympus E-PM2« »||Y||stereo||mono||-||-||mini||2.0||-||-||-||Olympus E-PM2|
|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-P1« »||Y||stereo||-||-||-||mini||2.0||-||-||-||Olympus E-P1|
|Olympus E-P2« »||Y||stereo||-||-||-||mini||2.0||-||-||-||Olympus E-P2|
|Panasonic GX1« »||Y||stereo||mono||-||-||mini||2.0||-||-||-||Panasonic GX1|
|Panasonic G10« »||Y||mono||-||-||-||mini||2.0||-||-||-||Panasonic G10|
|Panasonic G2« »||Y||stereo||mono||-||-||mini||2.0||-||-||-||Panasonic G2|
Both the E-P3 and the E-PM1 have been discontinued, but can regularly be found used on eBay. The E-P3 was replaced by the Olympus E-P5, while the E-PM1 was followed by the Olympus E-PM2. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Olympus website.
Review summary: Olympus E-P3 vs E-PM1
So what conclusions can be drawn? Is there a clear favorite between the Olympus E-P3 and the Olympus E-PM1? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.
Arguments in favor of the Olympus PEN E-P3:
- More detailed LCD: Has a higher resolution rear screen (614k vs 460k dots).
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
Reasons to prefer the Olympus PEN E-PM1:
- Faster burst: Shoots at higher frequency (5.5 vs 3 flaps/sec) to capture the decisive moment.
- More compact: Is smaller (110x64mm vs 122x69mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 104g or 28 percent) and is thus easier to take along.
- More affordable: Was introduced into a lower priced category (38 percent cheaper at launch).
If the number of relative strengths (bullet points above) is taken as a guide, the match-up finishes in a tie (4 points each). 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.
How about other alternatives? Do the specifications of the Olympus E-P3 and the Olympus E-PM1 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 partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the E-P3 or the E-PM1. 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-P3 vs E-PM1
This is where reviews by experts come in. 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-P3»||83/100||74/100||4.5/5||4.5/5||4.5/5||Jun 2011||799||-||Olympus E-P3|
|Olympus E-PM1«||86/100||71/100||4.5/5||-||4.5/5||Jun 2011||499||-||Olympus E-PM1|
|Olympus E-P5« »||+ +||78/100||4.5/5||4.5/5||5/5||May 2013||999||-||Olympus E-P5|
|Olympus E-PL5« »||+ +||-||4.5/5||4.5/5||4.5/5||Sep 2012||599||-||Olympus E-PL5|
|Olympus E-PM2« »||-||77/100||5/5||4.5/5||4.5/5||Sep 2012||499||-||Olympus E-PM2|
|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-P1« »||+||66/100||4/5||4/5||4.5/5||Jun 2009||799||-||Olympus E-P1|
|Olympus E-P2« »||+||69/100||4/5||4.5/5||4.5/5||Nov 2009||799||-||Olympus E-P2|
|Panasonic GX1« »||+||77/100||4.5/5||4.5/5||4.5/5||Nov 2011||699||-||Panasonic GX1|
|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|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (-) not available.|
Care should be taken when interpreting the review scores above, though. The ratings are only valid when referring to cameras in the same category and of the same age. 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. 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? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
- Canon G15 vs Olympus E-P3
- Olympus E-P3 vs Olympus E-P5
- Olympus E-P3 vs Olympus E-PL2
- Olympus E-P3 vs Olympus XZ-2
- Olympus E-P3 vs Panasonic GF2
- Olympus E-P3 vs Panasonic TZ90
- Olympus E-P3 vs Sony A7 III
- Olympus E-P3 vs Sony A7R III
- Olympus E-P3 vs Sony RX100 VI
- Olympus E-PM1 vs Panasonic GF3
- Olympus E-PM1 vs Panasonic GF5
- Olympus E-PM1 vs Panasonic GX7
Specifications: Olympus E-P3 vs Olympus E-PM1
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||Olympus E-PM1|
|Camera Type||Mirrorless system camera||Mirrorless system camera|
|Camera Lens||Micro Four Thirds lenses||Micro Four Thirds lenses|
|Launch Date||June 2011||June 2011|
|Launch Price||USD 799||USD 499|
|Sensor Specs||Olympus E-P3||Olympus E-PM1|
|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||12.2 Megapixels|
|Image Resolution||4032 x 3024 pixels||4032 x 3024 pixels|
|Pixel Pitch||4.29 μm||4.29 μm|
|Pixel Density||5.42 MP/cm2||5.42 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/60i Video||1080/60i Video|
|ISO Setting||200-12800 ISO||100-12800 ISO|
|Image Processor||TruePic VI||TruePic VI|
|DXO Sensor Quality (score)||51||52|
|DXO Color Depth (bits)||20.8||21.0|
|DXO Dynamic Range (EV)||10.1||10.3|
|DXO Low Light (ISO)||536||499|
|Screen Specs||Olympus E-P3||Olympus E-PM1|
|Viewfinder Type||Viewfinder optional||Viewfinder optional|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0 inch||3.0 inch|
|LCD Resolution||614k dots||460k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Olympus E-P3||Olympus E-PM1|
|Autofocus System||Contrast-detect AF||Contrast-detect AF|
|Continuous Shooting||3 shutter flaps/s||5.5 shutter flaps/s|
|Image Stabilization||In-body stabilization||In-body stabilization|
|Fill Flash||Build-in Flash||no On-Board Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-I||no|
|Connectivity Specs||Olympus E-P3||Olympus E-PM1|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||mini HDMI|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Olympus E-P3||Olympus E-PM1|
|Battery Type||BLS-5 power pack||BLS-5 power pack|
|Battery Life (CIPA)||330 shots per charge||330 shots per charge|
122 x 69 x 34 mm
(4.8 x 2.7 x 1.3 in)
110 x 64 x 34 mm
(4.3 x 2.5 x 1.3 in)
|Camera Weight||369 g (13.0 oz)||265 g (9.3 oz)|
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