Canon SL3 vs Olympus E-1
The Canon EOS Rebel SL3 (called Canon 250D in some regions) and the Olympus E-1 are two digital cameras that were officially introduced, respectively, in April 2019 and June 2003. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (SL3) and a Four Thirds (E-1) sensor. The Canon has a resolution of 24 megapixels, whereas the Olympus provides 4.9 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Canon SL3||Olympus E-1|
|Digital single lens reflex||Digital single lens reflex|
|Canon EF mount lenses||Four Thirds lenses|
|24 MP, APS-C Sensor||4.9 MP, Four Thirds Sensor|
|4K/25p Video||no Video|
|ISO 100-25,600 (100 - 51,200)||ISO 100-800 (100 - 3,200)|
|Optical viewfinder||Optical viewfinder|
|3.0 LCD, 1040k dots||1.8 LCD, 134k dots|
|Swivel touchscreen||Fixed screen (not touch-sensitive)|
|5 shutter flaps per second||3 shutter flaps per second|
|not weather sealed||Weathersealed body|
|1070 shots per battery charge||750 shots per battery charge|
|122 x 93 x 70 mm, 449 g||141 x 104 x 81 mm, 738 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS Rebel SL3 and the Olympus E-1? 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 SL3 and the Olympus E-1 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All size dimensions are rounded to the nearest millimeter.
The SL3 can be obtained in two different colors (black, white), while the E-1 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-1 is notably larger (29 percent) than the Canon SL3. Moreover, the E-1 is substantially heavier (64 percent) than the SL3. It is noteworthy in this context that the E-1 is splash and dust-proof, while the SL3 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. 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 (SL3) and the Four Thirds Lens Catalog (E-1).
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 SL3||4.8 in||3.7 in||2.8 in||15.8 oz||1070||n||Apr 2019||599|
|Olympus E-1||5.6 in||4.1 in||3.2 in||26.0 oz||750||Y||Jun 2003||1,699|
|Canon T8i||5.2 in||4.1 in||3.0 in||18.2 oz||800||n||Feb 2020||749|
|Canon M50||4.6 in||3.5 in||2.3 in||13.8 oz||235||n||Feb 2018||779|
|Canon T7||5.1 in||4.0 in||3.1 in||16.8 oz||500||n||Feb 2018||449|
|Canon T100||5.1 in||4.0 in||3.0 in||15.4 oz||500||n||Feb 2018||399|
|Canon 77D||5.2 in||3.9 in||3.0 in||19.0 oz||600||n||Feb 2017||899|
|Canon SL2||4.8 in||3.7 in||2.8 in||16.0 oz||650||n||Jun 2017||549|
|Canon T7i||5.2 in||3.9 in||3.0 in||18.8 oz||600||n||Feb 2017||749|
|Canon T6s||5.2 in||4.0 in||3.1 in||19.9 oz||440||n||Feb 2015||649|
|Canon SL1||4.6 in||3.6 in||2.7 in||14.4 oz||380||n||Mar 2013||549|
|Canon T2i||5.1 in||3.9 in||2.4 in||18.7 oz||440||n||Feb 2010||699|
|Leica Digilux 3||5.7 in||3.4 in||3.0 in||21.4 oz||750||n||Sep 2006||1,499|
|Olympus E-5||5.6 in||4.6 in||3.0 in||30.8 oz||750||Y||Sep 2010||1,699|
|Olympus E-3||5.6 in||4.6 in||3.0 in||30.9 oz||750||Y||Oct 2007||1,699|
|Olympus E-330||5.5 in||3.4 in||2.8 in||22.5 oz||750||n||Jan 2006||999|
|Olympus E-300||5.8 in||3.3 in||2.5 in||22.0 oz||750||n||Sep 2004||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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The SL3 was launched at a markedly lower price (by 65 percent) than the E-1, 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
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. 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 SL3 features an APS-C sensor and the Olympus E-1 a Four Thirds sensor. The sensor area in the E-1 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 SL3 has a native 3:2 aspect ratio, while the one in the E-1 offers a 4:3 aspect.
With 24MP, the SL3 offers a higher resolution than the E-1 (4.9MP), but the SL3 has smaller individual pixels (pixel pitch of 3.72μm versus 6.78μm for the E-1). However, the SL3 is a much more recent model (by 15 years and 9 months) than the E-1, 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 SL3 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the SL3 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-1 are 12.8 x 9.6 inches or 32.5 x 24.4 cm for good quality, 10.2 x 7.7 inches or 26 x 19.5 cm for very good quality, and 8.5 x 6.4 inches or 21.7 x 16.3 cm for excellent quality prints.
The SL3 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Canon EOS Rebel SL3 has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 100-51200. The corresponding ISO settings for the Olympus E-1 are ISO 100 to ISO 800, with the possibility to increase the ISO range to 100-3200.
For many cameras, data on sensor performance has been reported by DXO Mark. 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"). The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Olympus E-1||Four Thirds||4.9||2560||1920||none||..||..||..||..|
|Leica Digilux 3||Four Thirds||7.4||3136||2352||none||..||..||..||..|
|Olympus E-5||Four Thirds||12.2||4032||3024||720/30p||21.6||10.5||519||56|
|Olympus E-3||Four Thirds||10.0||3648||2736||none||21.6||10.5||571||56|
|Olympus E-330||Four Thirds||7.4||3136||2352||none||..||..||..||..|
|Olympus E-300||Four Thirds||8.0||3264||2448||none||..||..||..||..|
Many modern cameras are not only capable of taking still images, but can also record movies. The SL3 indeed provides movie recording capabilities, while the E-1 does not. The highest resolution format that the SL3 can use is 4K/25p.
Apart from body and sensor, cameras can and do differ across a range of features. The SL3 and the E-1 are similar in the sense that both have an optical viewfinder. The latter is useful for getting a clear image for framing even in brightly lit environments. The viewfinder in the E-1 offers a wider field of view (100%) than the one in the SL3 (95%), so that a larger proportion of the captured image is visible in the finder. On the other hand, the viewfinder of the SL3 has a higher magnification (0.54x vs 0.48x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Canon SL3 and Olympus E-1 along with similar information for a selection of comparators.
|Leica Digilux 3||optical||n||2.5||207||fixed||n||1/4000s||3.0||Y||n|
One difference between the cameras concerns the presence of an on-board flash. The SL3 has one, while the E-1 does not. While the built-in flash of the SL3 is not very powerful, it can at times be useful as a fill-in light.The SL3 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-1 does not have a selfie-screen.
The Canon SL3 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.
The SL3 writes its imaging data to SDXC cards, while the E-1 uses Compact Flash or xD Picture cards. The E-1 features dual card slots, which can be very useful in case a memory card fails. In contrast, the SL3 only has one slot.
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 SL3 and Olympus E-1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
|Leica Digilux 3||Y||stereo||mono||-||-||-||2.0||-||-||-|
It is notable that the SL3 offers wifi support, while the E-1 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.
Studio photographers will appreciate that the Olympus E-1 (unlike the SL3) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
The SL3 is a recent model that features in the current product line-up of Canon. In contrast, the E-1 has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the E-1 was succeeded by the Olympus E-3. 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 is the bottom line? Is the Canon SL3 better than the Olympus E-1 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 SL3:
- More detail: Offers more megapixels (24 vs 4.9MP) with a 125% higher linear resolution.
- Better image quality: Features a larger and more technologically advanced imaging sensor.
- Richer colors: The sensor size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
- Broader imaging potential: Can record not only still images but also 4K/25p movies.
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.54x vs 0.48x).
- Larger screen: Has a bigger rear LCD (3.0" vs 1.8") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (1040k vs 134k 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.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More compact: Is smaller (122x93mm vs 141x104mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 289g or 39 percent) and hence easier to carry around.
- Longer lasting: Can take more shots (1070 versus 750) on a single battery charge.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- More affordable: Was introduced into a lower priced category (65 percent cheaper at launch).
- More modern: Reflects 15 years and 9 months of technical progress since the E-1 launch.
Advantages of the Olympus E-1:
- More complete view: Has a viewfinder with a larger field of view (100% vs 95%).
- Easier setting verification: Features a control panel on top to check shooting parameters.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- 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.
- More heavily discounted: Has been around for much longer (launched in June 2003).
If the number of relative strengths (bullet points above) is taken as a guide, the SL3 is the clear winner of the match-up (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 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 SL3 and the Olympus E-1 place the cameras among the top in their class? Find out in the latest Best DSLR Camera listing 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 incomplete and does no justice, for example, to the way the SL3 or the E-1 perform in practice. 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 SL3||o||79/100||4/5||..||4/5||Apr 2019||599|
|Olympus E-1||..||+||o||o||..||Jun 2003||1,699|
|Canon T8i||..||..||..||..||..||Feb 2020||749|
|Canon M50||+||79/100||..||4/5||3.5/5||Feb 2018||779|
|Canon T7||o||..||3.5/5||..||3.5/5||Feb 2018||449|
|Canon T100||o||..||3.5/5||..||3.5/5||Feb 2018||399|
|Canon 77D||..||82/100||4.5/5||4.5/5||4/5||Feb 2017||899|
|Canon SL2||+ +||78/100||4.5/5||4.5/5||4.5/5||Jun 2017||549|
|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 SL1||+||78/100||4/5||4/5||4/5||Mar 2013||549|
|Canon T2i||+ +||77/100||4/5||5/5||4.5/5||Feb 2010||699|
|Leica Digilux 3||..||..||..||..||..||Sep 2006||1,499|
|Olympus E-5||..||75/100||4/5||..||4.5/5||Sep 2010||1,699|
|Olympus E-3||88/100||+ +||o||o||4/5||Oct 2007||1,699|
|Olympus E-330||..||+||o||3.5/5||..||Jan 2006||999|
|Olympus E-300||..||+||o||o||4.5/5||Sep 2004||799|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The review scores listed above should be treated with care, 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. 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? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes 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.
- Canon 1D vs Olympus E-1
- Canon 7D II vs Olympus E-1
- Canon SL3 vs Leica V-LUX 1
- Canon SL3 vs Olympus E-M10
- Canon SX730 vs Olympus E-1
- Contax N Digital vs Olympus E-1
- Fujifilm X-T1 vs Olympus E-1
- Nikon Coolpix A vs Olympus E-1
- Olympus E-1 vs Panasonic S1R
- Olympus E-1 vs Pentax K-5
- Olympus E-1 vs Sony A850
- Olympus E-1 vs Sony NEX-5
Specifications: Canon SL3 vs Olympus E-1
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 SL3||Olympus E-1|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Four Thirds lenses|
|Launch Date||April 2019||June 2003|
|Launch Price||USD 599||USD 1,699|
|Sensor Specs||Canon SL3||Olympus E-1|
|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||4.9 Megapixels|
|Image Resolution||6000 x 4000 pixels||2560 x 1920 pixels|
|Pixel Pitch||3.72 μm||6.78 μm|
|Pixel Density||7.22 MP/cm2||2.19 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||4K/25p Video||no Video|
|ISO Setting||100 - 25,600 ISO||100 - 800 ISO|
|ISO Boost||100 - 51,200 ISO||100 - 3,200 ISO|
|Image Processor||DIGIC 8||TruePic|
|Screen Specs||Canon SL3||Olympus E-1|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||95%||100%|
|Top-Level Screen||no Top Display||Control Panel|
|LCD Framing||Live View|
|Rear LCD Size||3.0inch||1.8inch|
|LCD Resolution||1040k dots||134k dots|
|LCD Attachment||Swivel screen||Fixed screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Canon SL3||Olympus E-1|
|Focus System||Phase-detect AF||Phase-detect AF|
|Continuous Shooting||5 shutter flaps/s||3 shutter flaps/s|
|Shutter Life Expectancy||100 000 actuations||150 000 actuations|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|Fill Flash||Build-in Flash||no On-Board Flash|
|Storage Medium||SDXC cards||CF or XD cards|
|Second Storage Option||Single card slot||Dual card slots|
|Connectivity Specs||Canon SL3||Olympus E-1|
|Studio Flash||no PC Sync||PC Sync socket|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||no HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Wifi Support||Wifi built-in||no Wifi|
|Bluetooth Support||Bluetooth built-in||no Bluetooth|
|Body Specs||Canon SL3||Olympus E-1|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||1070 shots per charge||750 shots per charge|
122 x 93 x 70 mm
(4.8 x 3.7 x 2.8 in)
141 x 104 x 81 mm
(5.6 x 4.1 x 3.2 in)
|Camera Weight||449 g (15.8 oz)||738 g (26.0 oz)|
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