Canon T6i vs Olympus E-P3
The Canon EOS Rebel T6i (called Canon 750D in some regions) and the Olympus PEN E-P3 are two digital cameras that were officially introduced, respectively, in February 2015 and June 2011. The T6i is a DSLR, while the E-P3 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (T6i) and a Four Thirds (E-P3) sensor. The Canon has a resolution of 24 megapixels, whereas the Olympus provides 12.2 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Canon T6i||Olympus E-P3|
|Digital single lens reflex||Mirrorless system camera|
|Canon EF mount lenses||Micro Four Thirds lenses|
|24 MP, APS-C Sensor||12.2 MP, Four Thirds Sensor|
|1080/30p Video||1080/60i Video|
|ISO 100-12,800 (100 - 25,600)||ISO 200-12,800|
|Optical viewfinder||Viewfinder optional|
|3.0 LCD, 1040k dots||3.0 LCD, 614k dots|
|Swivel touchscreen||Fixed touchscreen|
|5 shutter flaps per second||3 shutter flaps per second|
|Lens stabilization only||In-body stabilization|
|440 shots per battery charge||330 shots per battery charge|
|132 x 101 x 78 mm, 555 g||122 x 69 x 34 mm, 369 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS Rebel T6i and the Olympus PEN E-P3? 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 Canon T6i and the Olympus E-P3. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side 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 T6i 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 Olympus E-P3 is considerably smaller (37 percent) than the Canon T6i. Moreover, the E-P3 is markedly lighter (34 percent) than the T6i. In this context, it is worth noting that neither the T6i nor the E-P3 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. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Canon EF Lens Catalog (T6i) and the Micro Four Thirds Lens Catalog (E-P3). Mirrorless cameras, such as the E-P3, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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.
|Canon T6i||132 mm||101 mm||78 mm||555 g||440||n||Feb 2015||749|
|Olympus E-P3||122 mm||69 mm||34 mm||369 g||330||n||Jun 2011||799|
|Canon 77D||131 mm||100 mm||76 mm||540 g||600||n||Feb 2017||899|
|Canon T7i||131 mm||100 mm||76 mm||532 g||600||n||Feb 2017||749|
|Canon T6s||132 mm||101 mm||78 mm||565 g||440||n||Feb 2015||649|
|Canon T5||130 mm||100 mm||78 mm||480 g||500||n||Feb 2014||449|
|Canon T5i||133 mm||100 mm||79 mm||580 g||440||n||Mar 2013||649|
|Canon T4i||133 mm||100 mm||79 mm||575 g||440||n||Jun 2012||849|
|Canon T1i||129 mm||98 mm||62 mm||520 g||400||n||Mar 2009||799|
|Canon XSi||129 mm||98 mm||62 mm||524 g||500||n||Jan 2008||799|
|Canon XTi||127 mm||84 mm||65 mm||556 g||370||n||Aug 2006||799|
|Canon XT||127 mm||94 mm||64 mm||540 g||400||n||Feb 2005||899|
|Olympus E-PL2||114 mm||72 mm||42 mm||362 g||280||n||Jan 2011||599|
|Olympus E-PL3||110 mm||64 mm||37 mm||313 g||300||n||Jun 2011||599|
|Olympus E-PL1||115 mm||72 mm||42 mm||334 g||290||n||Feb 2010||599|
|Olympus E-P1||121 mm||70 mm||36 mm||355 g||300||n||Jun 2009||799|
|Olympus E-P2||121 mm||70 mm||36 mm||355 g||300||n||Nov 2009||799|
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.
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 T6i was somewhat cheaper (by 6 percent) than the E-P3 at launch, but both cameras fall into the same price category. 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
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. 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 associated with larger, more expensive camera bodies and lenses.
Of the two cameras under consideration, the Canon T6i features an APS-C sensor and the Olympus E-P3 a Four Thirds sensor. The sensor area in the E-P3 is 32 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 2.0. The sensor in the T6i has a native 3:2 aspect ratio, while the one in the E-P3 offers a 4:3 aspect.
With 24MP, the T6i offers a higher resolution than the E-P3 (12.2MP), but the T6i has smaller individual pixels (pixel pitch of 3.72μm versus 4.29μm for the E-P3). However, the T6i is a much more recent model (by 3 years and 7 months) than the E-P3, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels.
The resolution advantage of the Canon T6i implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the T6i for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 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 T6i has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Canon EOS Rebel T6i has a native sensitivity range from ISO 100 to ISO 12800, which can be extended to ISO 100-25600. The corresponding ISO settings for the Olympus PEN E-P3 are ISO 200 to ISO 12800 (no boost).
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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. Of the two cameras under review, the T6i provides substantially higher image quality than the E-P3, with an overall score that is 20 points higher. This advantage is based on 1.9 bits higher color depth, 1.9 EV in additional dynamic range, and 0.8 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Olympus E-P3||Four Thirds||12.2||4032||3024||1080/60i||20.8||10.1||536||51|
|Olympus E-PL2||Four Thirds||12.2||4032||3024||720/30p||21.4||10.2||573||55|
|Olympus E-PL3||Four Thirds||12.2||4032||3024||1080/60i||20.9||10.3||499||52|
|Olympus E-PL1||Four Thirds||12.2||4032||3024||720/30p||21.5||10.1||487||54|
|Olympus E-P1||Four Thirds||12.2||4032||3024||720/30p||21.4||10.4||536||55|
|Olympus E-P2||Four Thirds||12.2||4032||3024||720/30p||21.5||10.4||505||56|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the E-P3 provides a faster frame rate than the T6i. It can shoot movie footage at 1080/60i, while the Canon is limited to 1080/30p.
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the T6i has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the E-P3 relies on live view and the rear LCD for framing. 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 Canon T6i, the Olympus E-P3, and comparable cameras.
One feature that differentiates the E-P3 and the T6i is in-body image stabilization (IBIS). The E-P3 reduces the risk of handshake-induced blur with all attached lenses, while the T6i offers no blur reduction with lenses that themselves do not provide optical image stabilization.The T6i has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the E-P3 does not have a selfie-screen.
Concerning the storage of imaging data, both the T6i and the E-P3 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.
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 Canon EOS Rebel T6i and Olympus PEN E-P3 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
It is notable that the T6i has a microphone port, which is missing on the E-P3. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.
Both the T6i and the E-P3 have been discontinued, but can regularly be found used on eBay. The E-P3 was replaced by the Olympus E-P5, while the T6i was followed by the Canon T7i. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Olympus websites.
So how do things add up? Is the Canon T6i better than the Olympus E-P3 or vice versa? Below is a summary of the relative strengths of each of the two contestants.
Arguments in favor of the Canon EOS Rebel T6i:
- More detail: Offers more megapixels (24 vs 12.2MP) with a 43% higher linear resolution.
- Better image quality: Scores substantially higher (20 points) in the DXO overall assessment.
- Richer colors: Generates images with noticeably better colors (1.9 bits more color depth).
- More dynamic range: Captures a larger spectrum of light and dark details (1.9 EV of extra DR).
- Better low-light sensitivity: Requires less light for good images (0.8 stops ISO advantage).
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Easier framing: Has an optical viewfinder for image composition and settings control.
- More detailed LCD: Has a higher resolution rear screen (1040k vs 614k dots).
- More flexible LCD: Has a 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.
- Faster burst: Shoots at higher frequency (5 vs 3 flaps/sec) to capture the decisive moment.
- Longer lasting: Can take more shots (440 versus 330) on a single battery charge.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
- More modern: Reflects 3 years and 7 months of technical progress since the E-P3 launch.
Reasons to prefer the Olympus PEN E-P3:
- Better video: Provides higher movie framerates (1080/60i versus 1080/30p).
- More compact: Is smaller (122x69mm vs 132x101mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 186g or 34 percent) and is thus easier to take along.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- More heavily discounted: Has been around for much longer (launched in June 2011).
If the count of relative strengths (bullet points above) is taken as a measure, the T6i is the clear winner of the match-up (16 : 6 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding 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 Canon T6i and the Olympus E-P3 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the 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 T6i or the E-P3. 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 why hands-on reviews by experts are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.
|Canon T6i||..||75/100||4.5/5||4.5/5||4.5/5||Feb 2015||749|
|Olympus E-P3||83/100||74/100||4.5/5||4.5/5||4.5/5||Jun 2011||799|
|Canon 77D||..||82/100||4.5/5||4.5/5||4/5||Feb 2017||899|
|Canon T7i||..||80/100||4.5/5||4/5||4/5||Feb 2017||749|
|Canon T6s||+||77/100||4.5/5||4.5/5||4.5/5||Feb 2015||649|
|Canon T5||+||..||4/5||4/5||4.5/5||Feb 2014||449|
|Canon T5i||..||76/100||4.5/5||4.5/5||4.5/5||Mar 2013||649|
|Canon T4i||+ +||77/100||4.5/5||4.5/5||4.5/5||Jun 2012||849|
|Canon T1i||+ +||74/100||4.5/5||5/5||4.5/5||Mar 2009||799|
|Canon XSi||+ +||+ +||4/5||5/5||4.5/5||Jan 2008||799|
|Canon XTi||+ +||+ +||o||4.5/5||4/5||Aug 2006||799|
|Canon XT||80/100||+ +||o||o||..||Feb 2005||899|
|Olympus E-PL2||83/100||71/100||4.5/5||4.5/5||4.5/5||Jan 2011||599|
|Olympus E-PL3||+ +||72/100||4.5/5||..||4/5||Jun 2011||599|
|Olympus E-PL1||86/100||69/100||4/5||4.5/5||4.5/5||Feb 2010||599|
|Olympus E-P1||+||66/100||4/5||4/5||4.5/5||Jun 2009||799|
|Olympus E-P2||+||69/100||4/5||4.5/5||4.5/5||Nov 2009||799|
|Notes: (+ +) 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. Hence, a score should always be seen in the context of the camera's market launch date and its price, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. 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 would like to check on the differences and similarities of other camera models, just make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
- Canon 90D vs Olympus E-P3
- Canon G3 X vs Olympus E-P3
- Canon RP vs Canon T6i
- Canon T6i vs Fujifilm GFX 100
- Canon T6i vs Nikon D2H
- Canon T6i vs Olympus E-420
- Canon T6i vs Sony A6000
- Canon T6i vs Sony A7 II
- Fujifilm GFX 100 vs Olympus E-P3
- Nikon D3S vs Olympus E-P3
- Nikon D7000 vs Olympus E-P3
- Olympus E-P3 vs Sony NEX-3N
Specifications: Canon T6i vs Olympus E-P3
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||Canon T6i||Olympus E-P3|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Canon EF mount lenses||Micro Four Thirds lenses|
|Launch Date||February 2015||June 2011|
|Launch Price||USD 749||USD 799|
|Sensor Specs||Canon T6i||Olympus E-P3|
|Sensor Format||APS-C Sensor||Four Thirds Sensor|
|Sensor Size||22.3 x 14.9 mm||17.3 x 13.0 mm|
|Sensor Area||332.27 mm2||224.9 mm2|
|Sensor Diagonal||26.8 mm||21.6 mm|
|Sensor Resolution||24 Megapixels||12.2 Megapixels|
|Image Resolution||6000 x 4000 pixels||4032 x 3024 pixels|
|Pixel Pitch||3.72 μm||4.29 μm|
|Pixel Density||7.22 MP/cm2||5.42 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/30p Video||1080/60i Video|
|ISO Setting||100 - 12,800 ISO||200 - 12,800 ISO|
|ISO Boost||100 - 25,600 ISO||no Enhancement|
|Image Processor||DIGIC 6||TruePic VI|
|DXO Sensor Quality (score)||71||51|
|DXO Color Depth (bits)||22.7||20.8|
|DXO Dynamic Range (EV)||12.0||10.1|
|DXO Low Light (ISO)||919||536|
|Screen Specs||Canon T6i||Olympus E-P3|
|Viewfinder Type||Optical viewfinder||Viewfinder optional|
|Viewfinder Field of View||95%|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1040k dots||614k dots|
|LCD Attachment||Swivel screen||Fixed screen|
|Shooting Specs||Canon T6i||Olympus E-P3|
|Focus System||Phase-detect AF||Contrast-detect AF|
|Continuous Shooting||5 shutter flaps/s||3 shutter flaps/s|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-I||UHS-I|
|Connectivity Specs||Canon T6i||Olympus E-P3|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||mini HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Wifi Support||Wifi built-in||no Wifi|
|Near-Field Communication||NFC built-in||no NFC|
|Body Specs||Canon T6i||Olympus E-P3|
|Battery Life (CIPA)||440 shots per charge||330 shots per charge|
132 x 101 x 78 mm
(5.2 x 4.0 x 3.1 in)
122 x 69 x 34 mm
(4.8 x 2.7 x 1.3 in)
|Camera Weight||555 g (19.6 oz)||369 g (13.0 oz)|
Did you notice an error on this page? If so, please get in touch, so that we can correct the information.