Canon 650D vs Olympus E-P1
The Canon EOS 650D (called Canon T4i in some regions) and the Olympus PEN E-P1 are two digital cameras that were revealed to the public, respectively, in June 2012 and June 2009. The 650D is a DSLR, while the E-P1 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (650D) and a Four Thirds (E-P1) sensor. The Canon has a resolution of 17.9 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.
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 650D and the Olympus PEN E-P1? 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 650D and the Olympus E-P1. 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-P1 can be obtained in three different colors (black, silver, white), while the 650D 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-P1 is considerably smaller (36 percent) than the Canon 650D. Moreover, the E-P1 is substantially lighter (38 percent) than the 650D. In this context, it is worth noting that neither the 650D nor the E-P1 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 (650D) and the Micro Four Thirds Lens Catalog (E-P1). Mirrorless cameras, such as the E-P1, 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 adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.
|1.||Canon 650D||133 mm||100 mm||79 mm||575 g||440||n||Jun 2012||849|
|2.||Olympus E-P1||121 mm||70 mm||36 mm||355 g||300||n||Jun 2009||799|
|3.||Canon 750D||132 mm||101 mm||78 mm||555 g||440||n||Feb 2015||749|
|4.||Canon 760D||132 mm||101 mm||78 mm||565 g||440||n||Feb 2015||649|
|5.||Canon 1200D||130 mm||100 mm||78 mm||480 g||500||n||Feb 2014||449|
|6.||Canon 100D||117 mm||91 mm||69 mm||407 g||380||n||Mar 2013||549|
|7.||Canon 700D||133 mm||100 mm||79 mm||580 g||440||n||Mar 2013||649|
|8.||Canon G1 X||117 mm||81 mm||65 mm||534 g||250||n||Jan 2012||799|
|9.||Canon 600D||133 mm||100 mm||80 mm||570 g||440||n||Feb 2011||599|
|10.||Canon 1100D||130 mm||100 mm||78 mm||495 g||700||n||Feb 2011||449|
|11.||Canon 550D||129 mm||98 mm||62 mm||530 g||440||n||Feb 2010||699|
|12.||Canon 500D||129 mm||98 mm||62 mm||520 g||400||n||Mar 2009||799|
|13.||Olympus E-P3||122 mm||69 mm||34 mm||369 g||330||n||Jun 2011||799|
|14.||Olympus E-PL1||115 mm||72 mm||42 mm||334 g||290||n||Feb 2010||599|
|15.||Olympus E-620||130 mm||94 mm||60 mm||521 g||500||n||Feb 2009||699|
|16.||Olympus E-P2||121 mm||70 mm||36 mm||355 g||300||n||Nov 2009||799|
|17.||Olympus E-520||136 mm||92 mm||68 mm||535 g||750||n||May 2008||699|
|Notes: 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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The E-P1 was somewhat cheaper (by 6 percent) than the 650D 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.
The size of the imaging sensor is a crucial determinant 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. 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.
Of the two cameras under consideration, the Canon 650D features an APS-C sensor and the Olympus E-P1 a Four Thirds sensor. The sensor area in the E-P1 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 650D has a native 3:2 aspect ratio, while the one in the E-P1 offers a 4:3 aspect.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors.
With 17.9MP, the 650D offers a higher resolution than the E-P1 (12.2MP), but the 650D nevertheless has marginally larger individual pixels (pixel pitch of 4.31μm versus 4.29μm for the E-P1) due to its larger sensor. Moreover, the 650D is a much more recent model (by 2 years and 11 months) than the E-P1, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.
The resolution advantage of the Canon 650D implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 650D for good quality output (200 dots per inch) amounts to 25.9 x 17.3 inches or 65.8 x 43.9 cm, for very good quality (250 dpi) 20.7 x 13.8 inches or 52.7 x 35.1 cm, and for excellent quality (300 dpi) 17.3 x 11.5 inches or 43.9 x 29.3 cm. The corresponding values for the Olympus E-P1 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 650D has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Canon EOS 650D 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-P1 are ISO 100 to ISO 6400 (no boost).
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 review, the 650D has a notably higher overall DXO score than the E-P1 (overall score 7 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 0.3 bits higher color depth, 0.8 EV in additional dynamic range, and 0.4 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.
| DXO |
|2.||Olympus E-P1||Four Thirds||12.2||4032||3024||720/30p||21.4||10.4||536||55|
|8.||Canon G1 X||1.5-inch||14.2||4352||3264||1080/24p||21.7||10.8||644||60|
|13.||Olympus E-P3||Four Thirds||12.2||4032||3024||1080/60i||20.8||10.1||536||51|
|14.||Olympus E-PL1||Four Thirds||12.2||4032||3024||720/30p||21.5||10.1||487||54|
|15.||Olympus E-620||Four Thirds||12.2||4032||3024||none||21.3||10.3||536||55|
|16.||Olympus E-P2||Four Thirds||12.2||4032||3024||720/30p||21.5||10.4||505||56|
|17.||Olympus E-520||Four Thirds||10.0||3648||2736||none||21.4||10.4||548||55|
Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the 650D provides a higher video resolution than the E-P1. It can shoot video footage at 1080/30p, while the Olympus is limited to 720/30p.
Apart from body and sensor, cameras can and do differ across a range of features. For example, the 650D has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the E-P1 relies on live view and the rear LCD for framing. The table below summarizes some of the other core capabilities of the Canon 650D and Olympus E-P1 in connection with corresponding information for a sample of similar cameras.
|8.||Canon G1 X||optical||n||3.0||922||Swivel||n||1/4000s||1.9||Y||Y|
One difference between the cameras concerns the presence of an on-board flash. The 650D has one, while the E-P1 does not. While the built-in flash of the 650D is not very powerful, it can at times be useful as a fill-in light.The 650D 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-P1 does not have a selfie-screen.
The 650D writes its imaging data to SDXC cards, while the E-P1 uses SDHC cards. The 650D supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the E-P1 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 Canon EOS 650D and Olympus PEN E-P1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|8.||Canon G1 X||Y||stereo||mono||-||-||mini||2.0||-||-||-|
It is notable that the 650D has a microphone port, which is missing on the E-P1. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.
Both the 650D and the E-P1 have been discontinued, but can regularly be found used on eBay. The E-P1 was replaced by the Olympus E-P2, while the 650D was followed by the Canon 700D. 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 what conclusions can be drawn? Which of the two cameras – the Canon 650D or the Olympus E-P1 – 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.
Advantages of the Canon EOS 650D:
- More detail: Offers more megapixels (17.9 vs 12.2MP) with a 24% higher linear resolution.
- Better image quality: Scores markedly higher (7 points) in the DXO overall assessment.
- More dynamic range: Captures a larger spectrum of light and dark details (0.8 EV of extra DR).
- Better low-light sensitivity: Requires less light for good images (0.4 stops ISO advantage).
- Better video: Provides higher definition movie capture (1080/30p vs 720/30p).
- 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 230k dots).
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- 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 300) on a single battery charge.
- 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.
- More modern: Reflects 2 years and 11 months of technical progress since the E-P1 launch.
Reasons to prefer the Olympus PEN E-P1:
- More compact: Is smaller (121x70mm vs 133x100mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 220g or 38 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 2009).
If the number of relative strengths (bullet points above) is taken as a guide, the 650D is the clear winner of the match-up (17 : 5 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 Canon 650D and the Olympus E-P1 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 the spec-sheets of cameras can offer a general idea of their imaging potential, it says little about, for example, the shooting experience and imaging performance of the 650D and the E-P1 in practical situations. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.
This is why expert reviews are important. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (amateurphotographer [AP], cameralabs [CL], 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.||Canon 650D||4/5||+ +||77/100||4.5/5||4.5/5||Jun 2012||849|
|2.||Olympus E-P1||..||+||66/100||4/5||4.5/5||Jun 2009||799|
|3.||Canon 750D||5/5||..||75/100||4.5/5||4.5/5||Feb 2015||749|
|4.||Canon 760D||5/5||+||77/100||4.5/5||4.5/5||Feb 2015||649|
|5.||Canon 1200D||3/5||+||..||4/5||4.5/5||Feb 2014||449|
|6.||Canon 100D||4/5||+||78/100||4/5||4/5||Mar 2013||549|
|7.||Canon 700D||..||..||76/100||4.5/5||4.5/5||Mar 2013||649|
|8.||Canon G1 X||5/5||+||76/100||4/5||4.5/5||Jan 2012||799|
|9.||Canon 600D||3/5||o||77/100||4.5/5||4.5/5||Feb 2011||599|
|10.||Canon 1100D||..||80/100||69/100||4/5||4.5/5||Feb 2011||449|
|11.||Canon 550D||..||+ +||77/100||4/5||4.5/5||Feb 2010||699|
|12.||Canon 500D||..||+ +||74/100||4.5/5||4.5/5||Mar 2009||799|
|13.||Olympus E-P3||..||83/100||74/100||4.5/5||4.5/5||Jun 2011||799|
|14.||Olympus E-PL1||..||86/100||69/100||4/5||4.5/5||Feb 2010||599|
|15.||Olympus E-620||3/5||88/100||72/100||4.5/5||5/5||Feb 2009||699|
|16.||Olympus E-P2||3/5||+||69/100||4/5||4.5/5||Nov 2009||799|
|17.||Olympus E-520||..||87/100||+ +||4.5/5||4.5/5||May 2008||699|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods 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
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Specifications: Canon 650D vs Olympus E-P1
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 650D||Olympus E-P1|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Canon EF mount lenses||Micro Four Thirds lenses|
|Launch Date||June 2012||June 2009|
|Launch Price||USD 849||USD 799|
|Sensor Specs||Canon 650D||Olympus E-P1|
|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||17.9 Megapixels||12.2 Megapixels|
|Image Resolution||5184 x 3456 pixels||4032 x 3024 pixels|
|Pixel Pitch||4.31 μm||4.29 μm|
|Pixel Density||5.39 MP/cm2||5.42 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/30p Video||720/30p Video|
|ISO Setting||100 - 12,800 ISO||100 - 6,400 ISO|
|ISO Boost||100 - 25,600 ISO||no Enhancement|
|Image Processor||DIGIC 5||TruePic V|
|DXO Sensor Quality (score)||62||55|
|DXO Color Depth (bits)||21.7||21.4|
|DXO Dynamic Range (EV)||11.2||10.4|
|DXO Low Light (ISO)||722||536|
|Screen Specs||Canon 650D||Olympus E-P1|
|Viewfinder Type||Optical viewfinder||no viewfinder|
|Viewfinder Field of View||95%|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1040k dots||230k dots|
|LCD Attachment||Swivel screen||Fixed screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Canon 650D||Olympus E-P1|
|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||no On-Board Flash|
|Storage Medium||SDXC cards||SDHC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-I||no|
|Connectivity Specs||Canon 650D||Olympus E-P1|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||mini HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Canon 650D||Olympus E-P1|
|Battery Life (CIPA)||440 shots per charge||300 shots per charge|
133 x 100 x 79 mm
(5.2 x 3.9 x 3.1 in)
121 x 70 x 36 mm
(4.8 x 2.8 x 1.4 in)
|Camera Weight||575 g (20.3 oz)||355 g (12.5 oz)|
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