Canon 650D vs Olympus E-PM1
The Canon EOS 650D (called Canon T4i in some regions) and the Olympus PEN E-PM1 are two digital cameras that were announced, respectively, in June 2012 and June 2011. The 650D is a DSLR, while the E-PM1 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (650D) and a Four Thirds (E-PM1) 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-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.
The side-by-side display below illustrates the physical size and weight of the Canon 650D and the Olympus E-PM1. 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 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-PM1 is considerably smaller (47 percent) than the Canon 650D. Moreover, the E-PM1 is substantially lighter (54 percent) than the 650D. In this context, it is worth noting that neither the 650D 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. 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-PM1). Mirrorless cameras, such as the E-PM1, 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 table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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-PM1||110 mm||64 mm||34 mm||265 g||330||n||Jun 2011||499|
|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-PM2||110 mm||64 mm||34 mm||269 g||360||n||Sep 2012||499|
|14.||Olympus E-PL2||114 mm||72 mm||42 mm||362 g||280||n||Jan 2011||599|
|15.||Olympus E-PL3||110 mm||64 mm||37 mm||313 g||300||n||Jun 2011||599|
|16.||Olympus E-PL1||115 mm||72 mm||42 mm||334 g||290||n||Feb 2010||599|
|17.||Panasonic G2||124 mm||84 mm||74 mm||428 g||360||n||Mar 2010||599|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
The price is, of course, an important factor in any camera decision. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The E-PM1 was launched at a markedly lower price (by 41 percent) than the 650D, 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 size of the sensor inside a digital camera is one of the key determinants of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units 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 650D features an APS-C sensor and the Olympus E-PM1 a Four Thirds sensor. The sensor area in the E-PM1 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-PM1 offers a 4:3 aspect.
With 17.9MP, the 650D offers a higher resolution than the E-PM1 (12.2MP), but the 650D nevertheless has marginally larger individual pixels (pixel pitch of 4.31μm versus 4.29μm for the E-PM1) due to its larger sensor. Moreover, the 650D is a somewhat more recent model (by 11 months) than the E-PM1, and its sensor might 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-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 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-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. Of the two cameras under review, the 650D has a notably higher overall DXO score than the E-PM1 (overall score 10 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 0.7 bits higher color depth, 0.9 EV in additional dynamic range, and 0.5 stops in additional low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
|2.||Olympus E-PM1||Four Thirds||12.2||4032||3024||1080/60i||21.0||10.3||499||52|
|8.||Canon G1 X||1.5-inch||14.2||4352||3264||1080/24p||21.7||10.8||644||60|
|13.||Olympus E-PM2||Four Thirds||15.9||4608||3456||1080/30p||22.7||12.2||932||72|
|14.||Olympus E-PL2||Four Thirds||12.2||4032||3024||720/30p||21.4||10.2||573||55|
|15.||Olympus E-PL3||Four Thirds||12.2||4032||3024||1080/60i||20.9||10.3||499||52|
|16.||Olympus E-PL1||Four Thirds||12.2||4032||3024||720/30p||21.5||10.1||487||54|
|17.||Panasonic G2||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||493||53|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the E-PM1 provides a faster frame rate than the 650D. 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 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-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 table below summarizes some of the other core capabilities of the Canon 650D and Olympus E-PM1 in connection with corresponding information for a sample of similar cameras.
|1.||Canon 650D||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0||Y||n|
|2.||Olympus E-PM1||optional||n||3.0 / 460||fixed||n||1/4000s||5.5||n||Y|
|3.||Canon 750D||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0||Y||n|
|4.||Canon 760D||optical||Y||3.0 / 1040||swivel||Y||1/4000s||5.0||Y||n|
|5.||Canon 1200D||optical||n||3.0 / 460||fixed||n||1/4000s||3.0||Y||n|
|6.||Canon 100D||optical||n||3.0 / 1040||fixed||Y||1/4000s||4.9||Y||n|
|7.||Canon 700D||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0||Y||n|
|8.||Canon G1 X||optical||n||3.0 / 922||swivel||n||1/4000s||1.9||Y||Y|
|9.||Canon 600D||optical||n||3.0 / 1040||swivel||n||1/4000s||3.7||Y||n|
|10.||Canon 1100D||optical||n||2.7 / 230||fixed||n||1/4000s||3.0||Y||n|
|11.||Canon 550D||optical||n||3.0 / 1040||fixed||n||1/4000s||3.7||Y||n|
|12.||Canon 500D||optical||n||3.0 / 920||fixed||n||1/4000s||3.4||Y||n|
|13.||Olympus E-PM2||optional||n||3.0 / 460||fixed||Y||1/4000s||8.0||n||Y|
|14.||Olympus E-PL2||optional||n||3.0 / 460||fixed||n||1/4000s||3.0||Y||Y|
|15.||Olympus E-PL3||optional||n||3.0 / 460||tilting||n||1/4000s||5.5||n||Y|
|16.||Olympus E-PL1||optional||n||2.7 / 230||fixed||n||1/2000s||3.0||Y||Y|
|17.||Panasonic G2||1440||n||3.0 / 460||swivel||Y||1/4000s||2.6||Y||n|
One difference between the cameras concerns the presence of an on-board flash. The 650D has one, while the E-PM1 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-PM1 does not have a selfie-screen.
Concerning the storage of imaging data, both the 650D and the E-PM1 write their files to SDXC cards. The 650D 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 Canon EOS 650D and Olympus PEN E-PM1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon 650D||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|2.||Olympus E-PM1||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|3.||Canon 750D||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|4.||Canon 760D||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|5.||Canon 1200D||Y||mono / mono||-||-||mini||2.0||-||-||-|
|6.||Canon 100D||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|7.||Canon 700D||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|8.||Canon G1 X||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|9.||Canon 600D||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|10.||Canon 1100D||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|11.||Canon 550D||Y||stereo / -||Y||-||mini||2.0||-||-||-|
|12.||Canon 500D||Y||mono / mono||-||-||mini||2.0||-||-||-|
|13.||Olympus E-PM2||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|14.||Olympus E-PL2||Y||stereo / -||-||-||mini||2.0||-||-||-|
|15.||Olympus E-PL3||Y||stereo / -||-||-||mini||2.0||-||-||-|
|16.||Olympus E-PL1||Y||stereo / -||-||-||mini||2.0||-||-||-|
|17.||Panasonic G2||Y||stereo / mono||-||-||mini||2.0||-||-||-|
It is notable that the 650D has a microphone port, which is missing on the E-PM1. 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-PM1 have been discontinued, but can regularly be found used on eBay. The E-PM1 was replaced by the Olympus E-PM2, 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 how do things add up? Is there a clear favorite between the Canon 650D and the Olympus E-PM1? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.
Reasons to prefer 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 (10 points) in the DXO overall assessment.
- More dynamic range: Captures a larger spectrum of light and dark details (0.9 EV of extra DR).
- Better low-light sensitivity: Requires less light for good images (0.5 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 460k 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.
- Longer lasting: Can take more shots (440 versus 330) 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: Is somewhat more recent (announced 11 months after the E-PM1).
Advantages of the Olympus PEN E-PM1:
- Better video: Provides higher movie framerates (1080/60i versus 1080/30p).
- More compact: Is smaller (110x64mm vs 133x100mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 310g or 54 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 affordable: Was introduced into a lower priced category (41 percent cheaper at launch).
- More heavily discounted: Has been on the market for longer (launched in June 2011).
If the count of relative strengths (bullet points above) is taken as a measure, the 650D is the clear winner of the match-up (15 : 7 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-PM1 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 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 650D or the E-PM1. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.
This is where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular 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.
|1.||Canon 650D||4/5||+ +||..||77/100||4.5/5||4.5/5||Jun 2012||849|
|2.||Olympus E-PM1||..||86/100||..||71/100||4.5/5||4.5/5||Jun 2011||499|
|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-PM2||3/5||..||..||77/100||5/5||4.5/5||Sep 2012||499|
|14.||Olympus E-PL2||3/5||83/100||..||71/100||4.5/5||4.5/5||Jan 2011||599|
|15.||Olympus E-PL3||3/5||+ +||..||72/100||4.5/5||4/5||Jun 2011||599|
|16.||Olympus E-PL1||..||86/100||..||69/100||4/5||4.5/5||Feb 2010||599|
|17.||Panasonic G2||..||..||..||72/100||4/5||4.5/5||Mar 2010||599|
|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, 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 use the search menu below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
- Canon 650D vs Canon G16
- Canon 650D vs Nikon D2H
- Canon 650D vs Nikon D750
- Canon 650D vs Nikon Z7
- Canon 650D vs Panasonic GM1
- Canon 650D vs Sigma fp
- Canon M100 vs Olympus E-PM1
- Canon M6 Mark II vs Olympus E-PM1
- Canon SX620 vs Olympus E-PM1
- Fujifilm X-A5 vs Olympus E-PM1
- Fujifilm X-T2 vs Olympus E-PM1
- Olympus E-PM1 vs Panasonic S1H
Specifications: Canon 650D 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||Canon 650D||Olympus E-PM1|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Canon EF mount lenses||Micro Four Thirds lenses|
|Launch Date||June 2012||June 2011|
|Launch Price||USD 849||USD 499|
|Sensor Specs||Canon 650D||Olympus E-PM1|
|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||1080/60i Video|
|ISO Setting||100 - 12,800 ISO||100 - 12,800 ISO|
|ISO Boost||100 - 25,600 ISO||no Enhancement|
|Image Processor||DIGIC 5||TruePic VI|
|DXO Sensor Quality (score)||62||52|
|DXO Color Depth (bits)||21.7||21.0|
|DXO Dynamic Range (EV)||11.2||10.3|
|DXO Low Light (ISO)||722||499|
|Screen Specs||Canon 650D||Olympus E-PM1|
|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||460k dots|
|LCD Attachment||Swivel screen||Fixed screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Canon 650D||Olympus E-PM1|
|Focus System||Phase-detect AF||Contrast-detect AF|
|Continuous Shooting||5 shutter flaps/s||5.5 shutter flaps/s|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||Built-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||Canon 650D||Olympus E-PM1|
|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-PM1|
|Battery Life (CIPA)||440 shots per charge||330 shots per charge|
133 x 100 x 79 mm
(5.2 x 3.9 x 3.1 in)
110 x 64 x 34 mm
(4.3 x 2.5 x 1.3 in)
|Camera Weight||575 g (20.3 oz)||265 g (9.3 oz)|
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