Canon 750D vs Olympus E-3
The Canon EOS 750D (called Canon T6i in some regions) and the Olympus E-3 are two digital cameras that were announced, respectively, in February 2015 and October 2007. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (750D) and a Four Thirds (E-3) sensor. The Canon has a resolution of 24 megapixels, whereas the Olympus provides 10 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 750D and the Olympus E-3? 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 750D and the Olympus E-3. 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.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-3 is notably larger (24 percent) than the Canon 750D. Moreover, the E-3 is substantially heavier (58 percent) than the 750D. It is noteworthy in this context that the E-3 is splash and dust-proof, while the 750D 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 (750D) and the Four Thirds Lens Catalog (E-3).
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 750D||132 mm||101 mm||78 mm||555 g||440||n||Feb 2015||749||ebay.com|
|2.||Olympus E-3||142 mm||116 mm||75 mm||876 g||750||Y||Oct 2007||1,699||ebay.com|
|3.||Canon 2000D||129 mm||101 mm||78 mm||475 g||500||n||Feb 2018||449||amazon.com|
|4.||Canon 77D||131 mm||100 mm||76 mm||540 g||600||n||Feb 2017||899||ebay.com|
|5.||Canon 800D||131 mm||100 mm||76 mm||532 g||600||n||Feb 2017||749||ebay.com|
|6.||Canon 760D||132 mm||101 mm||78 mm||565 g||440||n||Feb 2015||649||ebay.com|
|7.||Canon M3||111 mm||68 mm||44 mm||366 g||250||n||Feb 2015||679||ebay.com|
|8.||Canon 1200D||130 mm||100 mm||78 mm||480 g||500||n||Feb 2014||449||ebay.com|
|9.||Canon G7 X||103 mm||60 mm||40 mm||304 g||210||n||Sep 2014||699||ebay.com|
|10.||Canon 700D||133 mm||100 mm||79 mm||580 g||440||n||Mar 2013||649||ebay.com|
|11.||Canon 650D||133 mm||100 mm||79 mm||575 g||440||n||Jun 2012||849||ebay.com|
|12.||Nikon D5600||124 mm||97 mm||70 mm||465 g||970||n||Nov 2016||699||amazon.com|
|13.||Olympus E-5||142 mm||117 mm||75 mm||873 g||750||Y||Sep 2010||1,699||ebay.com|
|14.||Olympus E-30||142 mm||108 mm||75 mm||701 g||750||n||Nov 2008||1,299||ebay.com|
|15.||Olympus E-520||136 mm||92 mm||68 mm||535 g||750||n||May 2008||699||ebay.com|
|16.||Olympus E-510||136 mm||92 mm||68 mm||538 g||750||n||Mar 2007||799||ebay.com|
|17.||Olympus E-1||141 mm||104 mm||81 mm||738 g||750||Y||Jun 2003||1,699||ebay.com|
|Note: 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 750D was launched at a markedly lower price (by 56 percent) than the E-3, 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. 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 tend to be associated with larger, more expensive camera bodies and lenses.
Of the two cameras under consideration, the Canon 750D features an APS-C sensor and the Olympus E-3 a Four Thirds sensor. The sensor area in the E-3 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 750D has a native 3:2 aspect ratio, while the one in the E-3 offers a 4:3 aspect.
With 24MP, the 750D offers a higher resolution than the E-3 (10MP), but the 750D has smaller individual pixels (pixel pitch of 3.72μm versus 4.74μm for the E-3). However, the 750D is a much more recent model (by 7 years and 3 months) than the E-3, 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 750D implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 750D 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-3 are 18.2 x 13.7 inches or 46.3 x 34.7 cm for good quality, 14.6 x 10.9 inches or 37.1 x 27.8 cm for very good quality, and 12.2 x 9.1 inches or 30.9 x 23.2 cm for excellent quality prints.
The 750D has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Canon EOS 750D 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 E-3 are ISO 100 to ISO 3200 (no boost).
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
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 750D provides substantially higher image quality than the E-3, with an overall score that is 15 points higher. This advantage is based on 1.1 bits higher color depth, 1.5 EV in additional dynamic range, and 0.7 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-3||Four Thirds||10.0||3648||2736||none||21.6||10.5||571||56|
|9.||Canon G7 X||1-inch||20.0||5472||3648||1080/60p||23.0||12.7||556||71|
|13.||Olympus E-5||Four Thirds||12.2||4032||3024||720/30p||21.6||10.5||519||56|
|14.||Olympus E-30||Four Thirds||12.2||4032||3024||none||21.3||10.4||530||55|
|15.||Olympus E-520||Four Thirds||10.0||3648||2736||none||21.4||10.4||548||55|
|16.||Olympus E-510||Four Thirds||10.0||3648||2736||none||21.2||10.0||442||52|
|17.||Olympus E-1||Four Thirds||4.9||2560||1920||none||20.0||9.7||-145||44|
|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 also of capturing video footage. The 750D indeed provides movie recording capabilities, while the E-3 does not. The highest resolution format that the 750D can use is 1080/30p.
Apart from body and sensor, cameras can and do differ across a range of features. The 750D and the E-3 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-3 offers a wider field of view (100%) than the one in the 750D (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the E-3 has a higher magnification (0.58x vs 0.51x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Canon 750D and Olympus E-3 in connection with corresponding information for a sample of similar cameras.
|1.||Canon 750D||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|2.||Olympus E-3||optical||Y||2.5 / 230||swivel||n||1/8000s||5.0/s||Y||Y|
|3.||Canon 2000D||optical||n||3.0 / 920||fixed||n||1/4000s||3.0/s||Y||n|
|4.||Canon 77D||optical||Y||3.0 / 1040||swivel||Y||1/4000s||6.0/s||Y||n|
|5.||Canon 800D||optical||n||3.0 / 1040||swivel||Y||1/4000s||6.0/s||Y||n|
|6.||Canon 760D||optical||Y||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|7.||Canon M3||optional||n||3.0 / 1040||tilting||Y||1/4000s||4.2/s||Y||n|
|8.||Canon 1200D||optical||n||3.0 / 460||fixed||n||1/4000s||3.0/s||Y||n|
|9.||Canon G7 X||none||n||3.0 / 1040||tilting||Y||1/2000s||6.5/s||Y||Y|
|10.||Canon 700D||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|11.||Canon 650D||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|12.||Nikon D5600||optical||n||3.2 / 1037||swivel||Y||1/4000s||5.0/s||Y||n|
|13.||Olympus E-5||optical||Y||3.0 / 920||swivel||n||1/8000s||5.0/s||Y||Y|
|14.||Olympus E-30||optical||Y||2.7 / 230||swivel||n||1/8000s||5.0/s||Y||Y|
|15.||Olympus E-520||optical||n||2.7 / 215||fixed||n||1/4000s||3.5/s||Y||Y|
|16.||Olympus E-510||optical||n||2.5 / 215||fixed||n||1/4000s||3.0/s||Y||Y|
|17.||Olympus E-1||optical||Y||1.8 / 134||fixed||n||1/4000s||3.0/s||n||n|
|Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.|
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The 750D has a touchscreen, while the E-3 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.
The 750D writes its imaging data to SDXC cards, while the E-3 uses Compact Flash or xD Picture cards. The E-3 features dual card slots, which can be very useful in case a memory card fails. In contrast, the 750D 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 750D and Olympus E-3 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon 750D||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|2.||Olympus E-3||Y||- / -||-||-||-||2.0||-||-||-|
|3.||Canon 2000D||Y||mono / mono||-||-||mini||2.0||Y||Y||-|
|4.||Canon 77D||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|5.||Canon 800D||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|6.||Canon 760D||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|7.||Canon M3||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|8.||Canon 1200D||Y||mono / mono||-||-||mini||2.0||-||-||-|
|9.||Canon G7 X||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|10.||Canon 700D||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|11.||Canon 650D||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|12.||Nikon D5600||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|13.||Olympus E-5||Y||stereo / -||-||-||mini||2.0||-||-||-|
|14.||Olympus E-30||Y||- / -||-||-||-||2.0||-||-||-|
|15.||Olympus E-520||Y||- / -||-||-||-||2.0||-||-||-|
|16.||Olympus E-510||Y||- / -||-||-||-||2.0||-||-||-|
|17.||Olympus E-1||Y||- / -||-||-||-||2.0||-||-||-|
It is notable that the 750D offers wifi support, while the E-3 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-3 (unlike the 750D) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the 750D and the E-3 have been discontinued, but can regularly be found used on ebay. The E-3 was replaced by the Olympus E-5, while the 750D was followed by the Canon 800D. Further information on the features and operation of the 750D and E-3 can be found, respectively, in the Canon 750D Manual (free pdf) or the online Olympus E-3 Manual.
So how do things add up? Is there a clear favorite between the Canon 750D and the Olympus E-3? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.
Reasons to prefer the Canon EOS 750D:
- More detail: Offers more megapixels (24 vs 10MP) with a 58% higher linear resolution.
- Better image quality: Scores substantially higher (15 points) in the DXO overall assessment.
- Richer colors: Generates images with noticeably better colors (1.1 bits more color depth).
- More dynamic range: Captures a larger spectrum of light and dark details (1.5 EV of extra DR).
- Better low-light sensitivity: Requires less light for good images (0.7 stops ISO advantage).
- Broader imaging potential: Can record not only still images but also 1080/30p movies.
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Larger screen: Has a bigger rear LCD (3.0" vs 2.5") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (1040k vs 230k dots).
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- More compact: Is smaller (132x101mm vs 142x116mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 321g or 37 percent) and hence easier to carry around.
- 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 affordable: Was introduced into a lower priced category (56 percent cheaper at launch).
- More modern: Reflects 7 years and 3 months of technical progress since the E-3 launch.
Advantages of the Olympus E-3:
- More complete view: Has a viewfinder with a larger field of view (100% vs 95%).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.58x vs 0.51x).
- Easier setting verification: Features a control panel on top to check shooting parameters.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Longer lasting: Gets more shots (750 versus 440) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- 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 October 2007).
If the count of relative strengths (bullet points above) is taken as a measure, the 750D is the clear winner of the match-up (16 : 10 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 750D and the Olympus E-3 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 partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the 750D or the E-3. 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 750D||5/5||..||..||75/100||4.5/5||4.5/5||Feb 2015||749||ebay.com|
|2.||Olympus E-3||..||88/100||..||+ +||o||4/5||Oct 2007||1,699||ebay.com|
|3.||Canon 2000D||3/5||o||3.5/5||..||3.5/5||3.5/5||Feb 2018||449||amazon.com|
|4.||Canon 77D||4.5/5||..||4/5||82/100||4.5/5||4/5||Feb 2017||899||ebay.com|
|5.||Canon 800D||4.5/5||..||3.5/5||80/100||4.5/5||4/5||Feb 2017||749||ebay.com|
|6.||Canon 760D||5/5||+||..||77/100||4.5/5||4.5/5||Feb 2015||649||ebay.com|
|7.||Canon M3||4/5||o||..||75/100||4.5/5||4/5||Feb 2015||679||ebay.com|
|8.||Canon 1200D||3/5||+||..||..||4/5||4.5/5||Feb 2014||449||ebay.com|
|9.||Canon G7 X||4/5||+ +||..||77/100||4.5/5||4.5/5||Sep 2014||699||ebay.com|
|10.||Canon 700D||..||..||..||76/100||4.5/5||4.5/5||Mar 2013||649||ebay.com|
|11.||Canon 650D||4/5||+ +||..||77/100||4.5/5||4.5/5||Jun 2012||849||ebay.com|
|12.||Nikon D5600||4/5||..||4/5||79/100||4.5/5||4/5||Nov 2016||699||amazon.com|
|13.||Olympus E-5||4/5||..||..||75/100||4/5||4.5/5||Sep 2010||1,699||ebay.com|
|14.||Olympus E-30||..||..||..||71/100||4.5/5||4/5||Nov 2008||1,299||ebay.com|
|15.||Olympus E-520||..||87/100||..||+ +||4.5/5||4.5/5||May 2008||699||ebay.com|
|16.||Olympus E-510||..||89/100||..||+ +||3.5/5||4.5/5||Mar 2007||799||ebay.com|
|17.||Olympus E-1||..||..||..||+||o||..||Jun 2003||1,699||ebay.com|
|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 1Ds vs Olympus E-3
- Canon 750D vs Canon SL2
- Canon 750D vs Fujifilm X-E4
- Canon 750D vs Nikon D800
- Canon 750D vs Panasonic FZ200
- Canon 750D vs Panasonic GF1
- Canon 750D vs Panasonic GF2
- Canon M5 vs Olympus E-3
- Nikon D850 vs Olympus E-3
- Olympus E-3 vs Olympus E-600
- Olympus E-3 vs Olympus E-M5 III
- Olympus E-3 vs Panasonic S1H
Specifications: Canon 750D vs Olympus E-3
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 750D||Olympus E-3|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Four Thirds lenses|
|Launch Date||February 2015||October 2007|
|Launch Price||USD 749||USD 1,699|
|Sensor Specs||Canon 750D||Olympus E-3|
|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||10 Megapixels|
|Image Resolution||6000 x 4000 pixels||3648 x 2736 pixels|
|Pixel Pitch||3.72 μm||4.74 μm|
|Pixel Density||7.22 MP/cm2||4.44 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/30p Video||no Video|
|ISO Setting||100 - 12,800 ISO||100 - 3,200 ISO|
|ISO Boost||100 - 25,600 ISO||no Enhancement|
|Image Processor||DIGIC 6||TruePic III|
|DXO Sensor Quality (score)||71||56|
|DXO Color Depth (bits)||22.7||21.6|
|DXO Dynamic Range (EV)||12.0||10.5|
|DXO Low Light (ISO)||919||571|
|Screen Specs||Canon 750D||Olympus E-3|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||95%||100%|
|Top-Level Screen||no Top Display||Control Panel|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||2.5inch|
|LCD Resolution||1040k dots||230k dots|
|LCD Attachment||Swivel screen||Swivel screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Canon 750D||Olympus E-3|
|Focus System||Phase-detect AF||Phase-detect AF|
|Continuous Shooting||5 shutter flaps/s||5 shutter flaps/s|
|Shutter Life Expectancy||100 000 actuations||150 000 actuations|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||SDXC cards||CF or XD cards|
|Single or Dual Card Slots||Single card slot||Dual card slots|
|Connectivity Specs||Canon 750D||Olympus E-3|
|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|
|Near-Field Communication||NFC built-in||no NFC|
|Body Specs||Canon 750D||Olympus E-3|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||440 shots per charge||750 shots per charge|
132 x 101 x 78 mm
(5.2 x 4.0 x 3.1 in)
142 x 116 x 75 mm
(5.6 x 4.6 x 3.0 in)
|Camera Weight||555 g (19.6 oz)||876 g (30.9 oz)|
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