Canon SL1 vs Olympus E-PL7
The Canon EOS Rebel SL1 (called Canon 100D in some regions) and the Olympus PEN E-PL7 are two digital cameras that were officially introduced, respectively, in March 2013 and August 2014. The SL1 is a DSLR, while the E-PL7 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (SL1) and a Four Thirds (E-PL7) sensor. The Canon has a resolution of 17.9 megapixels, whereas the Olympus provides 15.9 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 Rebel SL1 and the Olympus PEN E-PL7? 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.
An illustration of the physical size and weight of the Canon SL1 and the Olympus E-PL7 is provided 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 dimensions are rounded to the nearest millimeter.
The SL1 can be obtained in two different colors (black, white), while the E-PL7 is also available in two color-versions, but different ones (black, silver).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-PL7 is notably smaller (28 percent) than the Canon SL1. Moreover, the E-PL7 is markedly lighter (12 percent) than the SL1. In this context, it is worth noting that neither the SL1 nor the E-PL7 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 (SL1) and the Micro Four Thirds Lens Catalog (E-PL7). Mirrorless cameras, such as the E-PL7, 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 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 SL1||117 mm||91 mm||69 mm||407 g||380||n||Mar 2013||549|
|2.||Olympus E-PL7||115 mm||67 mm||38 mm||357 g||350||n||Aug 2014||599|
|3.||Canon T100||129 mm||102 mm||77 mm||436 g||500||n||Feb 2018||399|
|4.||Canon SL2||122 mm||93 mm||70 mm||453 g||650||n||Jun 2017||549|
|5.||Canon T6||129 mm||101 mm||78 mm||485 g||500||n||Mar 2016||449|
|6.||Canon M10||108 mm||67 mm||35 mm||301 g||255||n||Oct 2015||499|
|7.||Canon T5||130 mm||100 mm||78 mm||480 g||500||n||Feb 2014||449|
|8.||Canon G16||109 mm||76 mm||40 mm||356 g||360||n||Aug 2013||549|
|9.||Canon T5i||133 mm||100 mm||79 mm||580 g||440||n||Mar 2013||649|
|10.||Canon M||109 mm||66 mm||32 mm||298 g||230||n||Jul 2012||599|
|11.||Canon T4i||133 mm||100 mm||79 mm||575 g||440||n||Jun 2012||849|
|12.||Canon T3i||133 mm||100 mm||80 mm||570 g||440||n||Feb 2011||599|
|13.||Olympus E-PL8||115 mm||67 mm||38 mm||357 g||350||n||Sep 2016||549|
|14.||Olympus E-M10 II||120 mm||83 mm||47 mm||390 g||320||n||Aug 2015||649|
|15.||Olympus E-M10||119 mm||82 mm||46 mm||396 g||320||n||Jan 2014||699|
|16.||Olympus E-P5||122 mm||69 mm||37 mm||420 g||330||n||May 2013||999|
|17.||Olympus E-PL6||111 mm||64 mm||38 mm||325 g||360||n||May 2013||599|
|Notes: 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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The SL1 was somewhat cheaper (by 8 percent) than the E-PL7 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.
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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon SL1 features an APS-C sensor and the Olympus E-PL7 a Four Thirds sensor. The sensor area in the E-PL7 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 SL1 has a native 3:2 aspect ratio, while the one in the E-PL7 offers a 4:3 aspect.
With 17.9MP, the SL1 offers a higher resolution than the E-PL7 (15.9MP), but the SL1 nevertheless has larger individual pixels (pixel pitch of 4.31μm versus 3.76μm for the E-PL7) due to its larger sensor. However, the E-PL7 is a somewhat more recent model (by 1 year and 5 months) than the SL1, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels.
The resolution advantage of the Canon SL1 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the SL1 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-PL7 are 23 x 17.3 inches or 58.5 x 43.9 cm for good quality, 18.4 x 13.8 inches or 46.8 x 35.1 cm for very good quality, and 15.4 x 11.5 inches or 39 x 29.3 cm for excellent quality prints.
The SL1 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Canon EOS Rebel SL1 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-PL7 are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 100-25600.
For many cameras, data on sensor performance has been reported by DXO Mark. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). Of the two cameras under consideration, the E-PL7 has a markedly higher DXO score than the SL1 (overall score 9 points higher), which will translate into better image quality. The advantage is based on 0.9 bits higher color depth, 1.1 EV in additional dynamic range, and 0.1 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.
|2.||Olympus E-PL7||Four Thirds||15.9||4608||3456||1080/30p||22.7||12.4||873||72|
|13.||Olympus E-PL8||Four Thirds||15.9||4608||3456||1080/30p||23.0||12.6||1030||73|
|14.||Olympus E-M10 II||Four Thirds||15.9||4608||3456||1080/60p||23.1||12.5||842||73|
|15.||Olympus E-M10||Four Thirds||15.9||4608||3456||1080/30p||22.8||12.3||884||72|
|16.||Olympus E-P5||Four Thirds||15.9||4608||3456||1080/30p||22.8||12.4||895||72|
|17.||Olympus E-PL6||Four Thirds||15.9||4608||3456||1080/30p||22.5||12.0||717||68|
|Note: DXO values in italics represent estimates based on sensor size and age.|
Many modern cameras are not only capable of taking still images, but can also record movies. 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 (1080/30p).
Apart from body and sensor, cameras can and do differ across a range of features. For example, the SL1 has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the E-PL7 relies on live view and the rear LCD for framing. That said, the E-PL7 can be equipped with an optional viewfinder – the VF-4. The following table reports on some other key feature differences and similarities of the Canon SL1, the Olympus E-PL7, and comparable cameras.
|1.||Canon SL1||optical||n||3.0 / 1040||fixed||Y||1/4000s||4.9||Y||n|
|2.||Olympus E-PL7||optional||n||3.0 / 1037||tilting||Y||1/4000s||8.0||n||Y|
|3.||Canon T100||optical||n||2.7 / 230||fixed||n||1/4000s||3.0||Y||n|
|4.||Canon SL2||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0||Y||n|
|5.||Canon T6||optical||n||3.0 / 920||fixed||n||1/4000s||3.0||Y||n|
|6.||Canon M10||none||n||3.0 / 1040||tilting||Y||1/4000s||4.6||Y||n|
|7.||Canon T5||optical||n||3.0 / 460||fixed||n||1/4000s||3.0||Y||n|
|8.||Canon G16||optical||n||3.0 / 922||fixed||n||1/4000s||2.2||Y||Y|
|9.||Canon T5i||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0||Y||n|
|10.||Canon M||none||n||3.0 / 1040||fixed||Y||1/4000s||4.3||n||n|
|11.||Canon T4i||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0||Y||n|
|12.||Canon T3i||optical||n||3.0 / 1040||swivel||n||1/4000s||3.7||Y||n|
|13.||Olympus E-PL8||optional||n||3.0 / 1037||tilting||Y||1/4000s||8.0||n||Y|
|14.||Olympus E-M10 II||2360||n||3.0 / 1040||tilting||Y||1/4000s||8.0||Y||Y|
|15.||Olympus E-M10||1440||n||3.0 / 1037||tilting||Y||1/4000s||8.0||Y||Y|
|16.||Olympus E-P5||optional||n||3.0 / 1037||tilting||Y||1/8000s||9.0||Y||Y|
|17.||Olympus E-PL6||optional||n||3.0 / 460||tilting||Y||1/4000s||8.0||n||Y|
One difference between the cameras concerns the presence of an on-board flash. The SL1 has one, while the E-PL7 does not. While the built-in flash of the SL1 is not very powerful, it can at times be useful as a fill-in light.The E-PL7 has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the SL1 does not have a selfie-screen.
The Olympus E-PL7 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 SL1 and the E-PL7 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 SL1 and Olympus PEN E-PL7 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon SL1||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|2.||Olympus E-PL7||Y||stereo / mono||-||-||micro||2.0||Y||-||-|
|3.||Canon T100||Y||mono / mono||-||-||mini||2.0||Y||Y||-|
|4.||Canon SL2||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|5.||Canon T6||Y||mono / mono||-||-||mini||2.0||Y||Y||-|
|6.||Canon M10||-||stereo / mono||-||-||mini||2.0||Y||Y||-|
|7.||Canon T5||Y||mono / mono||-||-||mini||2.0||-||-||-|
|8.||Canon G16||Y||stereo / mono||-||-||mini||2.0||Y||-||-|
|9.||Canon T5i||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|10.||Canon M||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|11.||Canon T4i||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|12.||Canon T3i||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|13.||Olympus E-PL8||Y||stereo / mono||-||-||micro||2.0||Y||-||-|
|14.||Olympus E-M10 II||Y||stereo / mono||-||-||micro||2.0||Y||-||-|
|15.||Olympus E-M10||Y||stereo / mono||-||-||micro||2.0||Y||-||-|
|16.||Olympus E-P5||Y||stereo / mono||-||-||micro||2.0||Y||-||-|
|17.||Olympus E-PL6||Y||stereo / mono||-||-||mini||2.0||-||-||-|
It is notable that the SL1 has a microphone port, which is missing on the E-PL7. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.
Both the SL1 and the E-PL7 have been discontinued, but can regularly be found used on eBay. The SL1 was replaced by the Canon SL2, while the E-PL7 was followed by the Olympus E-PL8. 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? Is there a clear favorite between the Canon SL1 and the Olympus E-PL7? Which camera is better? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Canon EOS Rebel SL1:
- More detail: Offers more megapixels (17.9 vs 15.9MP) with a 8% higher linear resolution.
- 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.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More heavily discounted: Has been on the market for longer (launched in March 2013).
Reasons to prefer the Olympus PEN E-PL7:
- Better image quality: Scores markedly higher (9 points) in the DXO overall evaluation.
- More dynamic range: Captures a broader range of light and dark details (1.1 EV of extra DR).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Faster burst: Shoots at higher frequency (8 vs 4.9 flaps/sec) to capture the decisive moment.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More compact: Is smaller (115x67mm vs 117x91mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 50g or 12 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.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- More modern: Was introduced somewhat (1 year and 5 months) more recently.
If the count of relative strengths (bullet points above) is taken as a measure, the E-PL7 is the clear winner of the contest (12 : 6 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 SL1 and the Olympus E-PL7 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 says little about, for example, the shooting experience and imaging performance of the SL1 and the E-PL7 in practical situations. 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 why hands-on reviews by experts are important. 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 SL1||4/5||+||..||78/100||4/5||4/5||Mar 2013||549|
|2.||Olympus E-PL7||4/5||+||..||..||5/5||4/5||Aug 2014||599|
|3.||Canon T100||..||o||3/5||..||3.5/5||3.5/5||Feb 2018||399|
|4.||Canon SL2||4/5||+ +||4/5||78/100||4.5/5||4.5/5||Jun 2017||549|
|5.||Canon T6||4/5||o||4/5||73/100||4/5||4/5||Mar 2016||449|
|6.||Canon M10||..||..||..||..||..||4/5||Oct 2015||499|
|7.||Canon T5||3/5||+||..||..||4/5||4.5/5||Feb 2014||449|
|8.||Canon G16||4/5||+||..||..||4.5/5||4.5/5||Aug 2013||549|
|9.||Canon T5i||..||..||..||76/100||4.5/5||4.5/5||Mar 2013||649|
|10.||Canon M||3/5||+||..||..||4/5||4/5||Jul 2012||599|
|11.||Canon T4i||4/5||+ +||..||77/100||4.5/5||4.5/5||Jun 2012||849|
|12.||Canon T3i||3/5||o||..||77/100||4.5/5||4.5/5||Feb 2011||599|
|13.||Olympus E-PL8||..||..||..||..||4.5/5||4/5||Sep 2016||549|
|14.||Olympus E-M10 II||4.5/5||+ +||..||80/100||5/5||5/5||Aug 2015||649|
|15.||Olympus E-M10||4/5||..||..||80/100||5/5||5/5||Jan 2014||699|
|16.||Olympus E-P5||5/5||+ +||..||78/100||4.5/5||5/5||May 2013||999|
|17.||Olympus E-PL6||..||..||..||..||..||..||May 2013||599|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, 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 use the search menu below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
Specifications: Canon SL1 vs Olympus E-PL7
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 SL1||Olympus E-PL7|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Canon EF mount lenses||Micro Four Thirds lenses|
|Launch Date||March 2013||August 2014|
|Launch Price||USD 549||USD 599|
|Sensor Specs||Canon SL1||Olympus E-PL7|
|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||15.9 Megapixels|
|Image Resolution||5184 x 3456 pixels||4608 x 3456 pixels|
|Pixel Pitch||4.31 μm||3.76 μm|
|Pixel Density||5.39 MP/cm2||7.08 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/30p Video||1080/30p Video|
|ISO Setting||100 - 12,800 ISO||200 - 25,600 ISO|
|ISO Boost||100 - 25,600 ISO||100 - 25,600 ISO|
|Image Processor||DIGIC 5||TruePic VII|
|DXO Sensor Quality (score)||63||72|
|DXO Color Depth (bits)||21.8||22.7|
|DXO Dynamic Range (EV)||11.3||12.4|
|DXO Low Light (ISO)||843||873|
|Screen Specs||Canon SL1||Olympus E-PL7|
|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||1037k dots|
|LCD Attachment||Fixed screen||Tilting screen|
|Shooting Specs||Canon SL1||Olympus E-PL7|
|Focus System||Phase-detect AF||Contrast-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/4000s|
|Continuous Shooting||4.9 shutter flaps/s||8 shutter flaps/s|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|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||UHS-I|
|Connectivity Specs||Canon SL1||Olympus E-PL7|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||micro HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Wifi Support||no Wifi||Wifi built-in|
|Body Specs||Canon SL1||Olympus E-PL7|
|Battery Life (CIPA)||380 shots per charge||350 shots per charge|
117 x 91 x 69 mm
(4.6 x 3.6 x 2.7 in)
115 x 67 x 38 mm
(4.5 x 2.6 x 1.5 in)
|Camera Weight||407 g (14.4 oz)||357 g (12.6 oz)|
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