Olympus E-PM1 vs Pentax K-3
The Olympus PEN E-PM1 and the Pentax K-3 are two digital cameras that were announced, respectively, in June 2011 and October 2013. The E-PM1 is a mirrorless interchangeable lens camera, while the K-3 is a DSLR. The cameras are based on a Four Thirds (E-PM1) and an APS-C (K-3) sensor. The Olympus has a resolution of 12.2 megapixels, whereas the Pentax provides 24.1 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-PM1 and the Pentax K-3? 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.
The side-by-side display below illustrates the physical size and weight of the Olympus E-PM1 and the Pentax K-3. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All size dimensions are rounded to the nearest millimeter.
The E-PM1 can be obtained in six different colors (black, silver, brown, pink, purple, white), while the K-3 is available in two color-versions (black, silver).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax K-3 is considerably larger (86 percent) than the Olympus E-PM1. Moreover, the K-3 is substantially heavier (202 percent) than the E-PM1. It is noteworthy in this context that the K-3 is splash and dust-proof, while the E-PM1 does not feature any corresponding weather-sealing.
The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.
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, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.
|1.||Olympus E-PM1||110 mm||64 mm||34 mm||265 g||330||n||Jun 2011||499||ebay.com|
|2.||Pentax K-3||131 mm||100 mm||77 mm||800 g||560||Y||Oct 2013||1,299||ebay.com|
|3.||Canon 70D||139 mm||104 mm||79 mm||755 g||920||Y||Jul 2013||1,199||ebay.com|
|4.||Olympus E-PM2||110 mm||64 mm||34 mm||269 g||360||n||Sep 2012||499||ebay.com|
|5.||Olympus XZ-2||113 mm||65 mm||48 mm||346 g||340||n||Sep 2012||599||ebay.com|
|6.||Olympus E-P3||122 mm||69 mm||34 mm||369 g||330||n||Jun 2011||799||ebay.com|
|7.||Olympus E-PL2||114 mm||72 mm||42 mm||362 g||280||n||Jan 2011||599||ebay.com|
|8.||Olympus E-PL3||110 mm||64 mm||37 mm||313 g||300||n||Jun 2011||599||ebay.com|
|9.||Olympus XZ-1||111 mm||65 mm||42 mm||275 g||320||n||Jan 2011||499||ebay.com|
|10.||Olympus E-PL1||115 mm||72 mm||42 mm||334 g||290||n||Feb 2010||599||ebay.com|
|11.||Panasonic GF5||108 mm||67 mm||37 mm||267 g||360||n||Apr 2012||499||ebay.com|
|12.||Panasonic GF3||108 mm||67 mm||32 mm||264 g||300||n||Jun 2011||549||ebay.com|
|13.||Panasonic GF2||113 mm||68 mm||33 mm||310 g||300||n||Nov 2010||549||ebay.com|
|14.||Pentax KP||132 mm||101 mm||76 mm||703 g||390||Y||Jan 2017||1,099||ebay.com|
|15.||Pentax K-3 II||131 mm||100 mm||77 mm||800 g||720||Y||Apr 2015||1,099||ebay.com|
|16.||Pentax K-5 II||131 mm||97 mm||73 mm||760 g||740||Y||Sep 2012||1,099||ebay.com|
|17.||Pentax K-5||131 mm||97 mm||73 mm||760 g||740||Y||Sep 2010||1,099||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 obviously take relative prices into account. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The E-PM1 was launched at a markedly lower price (by 62 percent) than the K-3, which puts it into a different market segment. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.
The imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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. 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 associated with larger, more expensive camera bodies and lenses.
Of the two cameras under consideration, the Olympus E-PM1 features a Four Thirds sensor and the Pentax K-3 an APS-C sensor. The sensor area in the K-3 is 63 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 1.5. The sensor in the E-PM1 has a native 4:3 aspect ratio, while the one in the K-3 offers a 3:2 aspect.
With 24.1MP, the K-3 offers a higher resolution than the E-PM1 (12.2MP), but the K-3 has smaller individual pixels (pixel pitch of 3.90μm versus 4.29μm for the E-PM1). Yet, the K-3 is a much more recent model (by 2 years and 3 months) than the E-PM1, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the K-3 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Pentax K-3 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the K-3 for good quality output (200 dots per inch) amounts to 30.1 x 20 inches or 76.4 x 50.8 cm, for very good quality (250 dpi) 24.1 x 16 inches or 61.1 x 40.6 cm, and for excellent quality (300 dpi) 20.1 x 13.3 inches or 50.9 x 33.9 cm. The corresponding values for the Olympus E-PM1 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-PM1 has a native sensitivity range from ISO 100 to ISO 12800. The corresponding ISO settings for the Pentax K-3 are ISO 100 to ISO 51200 (no boost).
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.
Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). Of the two cameras under consideration, the K-3 offers substantially better image quality than the E-PM1 (overall score 28 points higher). The advantage is based on 2.7 bits higher color depth, 3.1 EV in additional dynamic range, and 1.3 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.
|1.||Olympus E-PM1||Four Thirds||12.2||4032||3024||1080/60i||21.0||10.3||499||52|
|4.||Olympus E-PM2||Four Thirds||15.9||4608||3456||1080/30p||22.7||12.2||932||72|
|6.||Olympus E-P3||Four Thirds||12.2||4032||3024||1080/60i||20.8||10.1||536||51|
|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|
|10.||Olympus E-PL1||Four Thirds||12.2||4032||3024||720/30p||21.5||10.1||487||54|
|11.||Panasonic GF5||Four Thirds||12.0||4000||3000||1080/60i||20.5||10.0||573||50|
|12.||Panasonic GF3||Four Thirds||12.0||4000||3000||1080/60i||20.6||10.1||459||50|
|13.||Panasonic GF2||Four Thirds||12.0||4000||3000||1080/60i||21.2||10.3||506||54|
|15.||Pentax K-3 II||APS-C||24.1||6016||4000||1080/60i||23.6||13.6||1106||80|
|16.||Pentax K-5 II||APS-C||16.1||4928||3264||1080/25p||23.8||14.1||1235||82|
|Note: DXO values in italics represent estimates based on sensor size and age.|
Many modern cameras cannot only take still pictures, but also record videos. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, and both provide the same movie specifications (1080/60i).
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the K-3 has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the E-PM1 relies on live view and the rear LCD for framing. That said, the E-PM1 can be equipped with an optional viewfinder – the VF-2. The adjacent table lists some of the other core features of the Olympus E-PM1 and Pentax K-3 along with similar information for a selection of comparators.
|1.||Olympus E-PM1||optional||n||3.0 / 460||fixed||n||1/4000s||5.5/s||n||Y|
|2.||Pentax K-3||optical||Y||3.2 / 1037||fixed||n||1/8000s||8.3/s||Y||Y|
|3.||Canon 70D||optical||Y||3.0 / 1040||swivel||Y||1/8000s||7.0/s||Y||n|
|4.||Olympus E-PM2||optional||n||3.0 / 460||fixed||Y||1/4000s||8.0/s||n||Y|
|5.||Olympus XZ-2||optional||n||3.0 / 920||tilting||Y||1/2000s||5.0/s||Y||Y|
|6.||Olympus E-P3||optional||n||3.0 / 614||fixed||Y||1/4000s||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 XZ-1||optional||n||3.0 / 614||fixed||n||1/2000s||2.0/s||Y||Y|
|10.||Olympus E-PL1||optional||n||2.7 / 230||fixed||n||1/2000s||3.0/s||Y||Y|
|11.||Panasonic GF5||none||n||3.0 / 920||fixed||Y||1/4000s||4.0/s||Y||n|
|12.||Panasonic GF3||none||n||3.0 / 460||fixed||Y||1/4000s||3.2/s||Y||n|
|13.||Panasonic GF2||optional||n||3.0 / 460||fixed||Y||1/4000s||2.6/s||Y||n|
|14.||Pentax KP||optical||n||3.0 / 921||tilting||n||1/6000s||7.0/s||Y||Y|
|15.||Pentax K-3 II||optical||Y||3.2 / 1037||fixed||n||1/8000s||8.3/s||n||Y|
|16.||Pentax K-5 II||optical||Y||3.0 / 921||fixed||n||1/8000s||7.0/s||Y||Y|
|17.||Pentax K-5||optical||Y||3.0 / 921||fixed||n||1/8000s||7.0/s||Y||Y|
|Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.|
One feature that is present on the K-3, but is missing on the E-PM1 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 Pentax K-3 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-PM1 and the K-3 write their files to SDXC cards. The K-3 features dual card slots, which can be very useful in case a memory card fails. In contrast, the E-PM1 only has one slot. The K-3 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.
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-PM1 and Pentax K-3 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Olympus E-PM1||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|2.||Pentax K-3||Y||mono / mono||Y||Y||mini||3.0||-||-||-|
|3.||Canon 70D||Y||stereo / mono||Y||-||mini||2.0||Y||-||-|
|4.||Olympus E-PM2||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|5.||Olympus XZ-2||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|6.||Olympus E-P3||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 XZ-1||Y||mono / -||-||-||mini||2.0||-||-||-|
|10.||Olympus E-PL1||Y||stereo / -||-||-||mini||2.0||-||-||-|
|11.||Panasonic GF5||-||stereo / mono||-||-||mini||2.0||-||-||-|
|12.||Panasonic GF3||-||stereo / mono||-||-||mini||2.0||-||-||-|
|13.||Panasonic GF2||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|14.||Pentax KP||Y||stereo / mono||Y||-||-||2.0||Y||-||-|
|15.||Pentax K-3 II||Y||mono / mono||Y||Y||mini||3.0||-||-||-|
|16.||Pentax K-5 II||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|17.||Pentax K-5||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
It is notable that the K-3 has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The E-PM1 lacks such a headphone port.
Studio photographers will appreciate that the Pentax K-3 (unlike the E-PM1) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the E-PM1 and the K-3 have been discontinued, but can regularly be found used on ebay. The E-PM1 was replaced by the Olympus E-PM2, while the K-3 was followed by the Pentax K-3 II. Further information on the features and operation of the E-PM1 and K-3 can be found, respectively, in the Olympus E-PM1 Manual (free pdf) or the online Pentax K-3 Manual.
So how do things add up? Which of the two cameras – the Olympus E-PM1 or the Pentax K-3 – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of the Olympus PEN E-PM1:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- More compact: Is smaller (110x64mm vs 131x100mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 535g or 67 percent) and hence easier to carry around.
- More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
- More affordable: Was introduced into a lower priced category (62 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in June 2011).
Advantages of the Pentax K-3:
- More detail: Has more megapixels (24.1 vs 12.2MP), which boosts linear resolution by 43%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better image quality: Scores substantially higher (28 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (2.7 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (3.1 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (1.3 stops ISO advantage).
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- Easier framing: Has an optical viewfinder for image composition and settings control.
- Easier setting verification: Features a control panel on top to check shooting parameters.
- Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (1037k vs 460k dots).
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (8.3 vs 5.5 flaps/sec) to capture the decisive moment.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Longer lasting: Gets more shots (560 versus 330) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
- More modern: Reflects 2 years and 3 months of technical progress since the E-PM1 launch.
If the count of individual advantages (bullet points above) is taken as a guide, the K-3 is the clear winner of the contest (23 : 6 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 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-PM1 and the Pentax K-3 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR 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 partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the E-PM1 or the K-3. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.
This is where reviews by experts come in. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], 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.
|1.||Olympus E-PM1||..||86/100||..||71/100||4.5/5||4.5/5||Jun 2011||499||ebay.com|
|2.||Pentax K-3||4/5||..||..||83/100||5/5||5/5||Oct 2013||1,299||ebay.com|
|3.||Canon 70D||5/5||+ +||..||83/100||4.5/5||5/5||Jul 2013||1,199||ebay.com|
|4.||Olympus E-PM2||3/5||..||..||77/100||5/5||4.5/5||Sep 2012||499||ebay.com|
|5.||Olympus XZ-2||4/5||+||..||..||4.5/5||4.5/5||Sep 2012||599||ebay.com|
|6.||Olympus E-P3||..||83/100||..||74/100||4.5/5||4.5/5||Jun 2011||799||ebay.com|
|7.||Olympus E-PL2||3/5||83/100||..||71/100||4.5/5||4.5/5||Jan 2011||599||ebay.com|
|8.||Olympus E-PL3||3/5||+ +||..||72/100||4.5/5||4/5||Jun 2011||599||ebay.com|
|9.||Olympus XZ-1||4/5||..||..||74/100||4.5/5||4.5/5||Jan 2011||499||ebay.com|
|10.||Olympus E-PL1||..||86/100||..||69/100||4/5||4.5/5||Feb 2010||599||ebay.com|
|11.||Panasonic GF5||3/5||..||..||..||4.5/5||4.5/5||Apr 2012||499||ebay.com|
|12.||Panasonic GF3||3/5||82/100||..||71/100||4.5/5||4/5||Jun 2011||549||ebay.com|
|13.||Panasonic GF2||3/5||82/100||..||70/100||4.5/5||4.5/5||Nov 2010||549||ebay.com|
|14.||Pentax KP||4/5||..||3/5||82/100||5/5||4.5/5||Jan 2017||1,099||ebay.com|
|15.||Pentax K-3 II||4.5/5||..||..||..||5/5||5/5||Apr 2015||1,099||ebay.com|
|16.||Pentax K-5 II||5/5||..||..||80/100||5/5||4.5/5||Sep 2012||1,099||ebay.com|
|17.||Pentax K-5||4/5||..||..||83/100||5/5||4.5/5||Sep 2010||1,099||ebay.com|
|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. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.
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.
- Canon 2000D vs Olympus E-PM1
- Canon 77D vs Pentax K-3
- Canon R vs Pentax K-3
- Canon SX730 vs Pentax K-3
- Canon T7 vs Pentax K-3
- Fujifilm X-A5 vs Olympus E-PM1
- Nikon D7000 vs Olympus E-PM1
- Olympus E-PL6 vs Olympus E-PM1
- Olympus E-PM1 vs Panasonic GM1
- Olympus E-PM1 vs Sony A99 II
- Pentax K-3 vs Sony A6100
- Pentax K-3 vs Sony H300
Specifications: Olympus E-PM1 vs Pentax K-3
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-PM1||Pentax K-3|
|Camera Type||Mirrorless system camera||Digital single lens reflex|
|Camera Lens||Micro Four Thirds lenses||Pentax K mount lenses|
|Launch Date||June 2011||October 2013|
|Launch Price||USD 499||USD 1,299|
|Sensor Specs||Olympus E-PM1||Pentax K-3|
|Sensor Format||Four Thirds Sensor||APS-C Sensor|
|Sensor Size||17.3 x 13.0 mm||23.5 x 15.6 mm|
|Sensor Area||224.9 mm2||366.6 mm2|
|Sensor Diagonal||21.6 mm||28.2 mm|
|Sensor Resolution||12.2 Megapixels||24.1 Megapixels|
|Image Resolution||4032 x 3024 pixels||6016 x 4000 pixels|
|Pixel Pitch||4.29 μm||3.90 μm|
|Pixel Density||5.42 MP/cm2||6.56 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||1080/60i Video||1080/60i Video|
|ISO Setting||100 - 12,800 ISO||100 - 51,200 ISO|
|Image Processor||TruePic VI||PRIME III|
|DXO Sensor Quality (score)||52||80|
|DXO Color Depth (bits)||21.0||23.7|
|DXO Dynamic Range (EV)||10.3||13.4|
|DXO Low Light (ISO)||499||1216|
|Screen Specs||Olympus E-PM1||Pentax K-3|
|Viewfinder Type||Viewfinder optional||Optical viewfinder|
|Viewfinder Field of View||100%|
|Top-Level Screen||no Top Display||Control Panel|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.2inch|
|LCD Resolution||460k dots||1037k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Olympus E-PM1||Pentax K-3|
|Focus System||Contrast-detect AF||Phase-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/8000s|
|Continuous Shooting||5.5 shutter flaps/s||8.3 shutter flaps/s|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Image Stabilization||In-body stabilization||In-body stabilization|
|Fill Flash||no On-Board Flash||Built-in Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Single or Dual Card Slots||Single card slot||Dual card slots|
|UHS card support||no||UHS-I|
|Connectivity Specs||Olympus E-PM1||Pentax K-3|
|Studio Flash||no PC Sync||PC Sync socket|
|USB Connector||USB 2.0||USB 3.0|
|HDMI Port||mini HDMI||mini HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Headphone Socket||no Headphone port||Headphone port|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Olympus E-PM1||Pentax K-3|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||330 shots per charge||560 shots per charge|
110 x 64 x 34 mm
(4.3 x 2.5 x 1.3 in)
131 x 100 x 77 mm
(5.2 x 3.9 x 3.0 in)
|Camera Weight||265 g (9.3 oz)||800 g (28.2 oz)|
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