Canon T6s vs Olympus E-420
The Canon EOS Rebel T6s (called Canon 760D in some regions) and the Olympus E-420 are two digital cameras that were officially introduced, respectively, in February 2015 and March 2008. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (T6s) and a Four Thirds (E-420) 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 Rebel T6s and the Olympus E-420? 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 T6s and the Olympus E-420. 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-420 is notably smaller (11 percent) than the Canon T6s. Moreover, the E-420 is markedly lighter (22 percent) than the T6s. In this context, it is worth noting that neither the T6s nor the E-420 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 (T6s) and the Four Thirds Lens Catalog (E-420).
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.
|1.||Canon T6s||132 mm||101 mm||78 mm||565 g||440||n||Feb 2015||649||ebay.com|
|2.||Olympus E-420||130 mm||91 mm||53 mm||440 g||500||n||Mar 2008||599||ebay.com|
|3.||Canon 77D||131 mm||100 mm||76 mm||540 g||600||n||Feb 2017||899||ebay.com|
|4.||Canon T7i||131 mm||100 mm||76 mm||532 g||600||n||Feb 2017||749||ebay.com|
|5.||Canon T6i||132 mm||101 mm||78 mm||555 g||440||n||Feb 2015||749||ebay.com|
|6.||Canon T5||130 mm||100 mm||78 mm||480 g||500||n||Feb 2014||449||ebay.com|
|7.||Canon T4i||133 mm||100 mm||79 mm||575 g||440||n||Jun 2012||849||ebay.com|
|8.||Canon T2i||129 mm||98 mm||62 mm||530 g||440||n||Feb 2010||699||ebay.com|
|9.||Canon T1i||129 mm||98 mm||62 mm||520 g||400||n||Mar 2009||799||ebay.com|
|10.||Canon XSi||129 mm||98 mm||62 mm||524 g||500||n||Jan 2008||799||ebay.com|
|11.||Canon XTi||127 mm||84 mm||65 mm||556 g||370||n||Aug 2006||799||ebay.com|
|12.||Canon XT||127 mm||94 mm||64 mm||540 g||400||n||Feb 2005||899||ebay.com|
|13.||Olympus E-450||130 mm||91 mm||53 mm||440 g||500||n||Mar 2009||499||ebay.com|
|14.||Olympus E-620||130 mm||94 mm||60 mm||521 g||500||n||Feb 2009||699||ebay.com|
|15.||Olympus E-520||136 mm||92 mm||68 mm||535 g||750||n||May 2008||699||ebay.com|
|16.||Olympus E-410||130 mm||91 mm||53 mm||435 g||500||n||Mar 2007||699||ebay.com|
|17.||Olympus E-400||130 mm||91 mm||53 mm||435 g||500||n||Sep 2006||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 E-420 was somewhat cheaper (by 8 percent) than the T6s 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 imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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 T6s features an APS-C sensor and the Olympus E-420 a Four Thirds sensor. The sensor area in the E-420 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 T6s has a native 3:2 aspect ratio, while the one in the E-420 offers a 4:3 aspect.
With 24MP, the T6s offers a higher resolution than the E-420 (10MP), but the T6s has smaller individual pixels (pixel pitch of 3.72μm versus 4.74μm for the E-420). However, the T6s is a much more recent model (by 6 years and 11 months) than the E-420, 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 T6s implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the T6s 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-420 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 T6s has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Canon EOS Rebel T6s 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-420 are ISO 100 to ISO 1600 (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 T6s provides substantially higher image quality than the E-420, with an overall score that is 14 points higher. This advantage is based on 1.1 bits higher color depth, 1.6 EV in additional dynamic range, and 0.8 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-420||Four Thirds||10.0||3648||2736||none||21.5||10.4||527||56|
|13.||Olympus E-450||Four Thirds||10.0||3648||2736||none||21.5||10.5||512||56|
|14.||Olympus E-620||Four Thirds||12.2||4032||3024||none||21.3||10.3||536||55|
|15.||Olympus E-520||Four Thirds||10.0||3648||2736||none||21.4||10.4||548||55|
|16.||Olympus E-410||Four Thirds||10.0||3648||2736||none||21.1||10.0||494||51|
|17.||Olympus E-400||Four Thirds||10.0||3648||2736||none||21.0||10.6||127||53|
|Note: DXO values in italics represent estimates based on sensor size and age.|
Many modern cameras cannot only take still pictures, but also record videos. The T6s indeed provides movie recording capabilities, while the E-420 does not. The highest resolution format that the T6s can use is 1080/30p.
Apart from body and sensor, cameras can and do differ across a range of features. The T6s and the E-420 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 viewfinders of both cameras offer the same field of view (95%), but the viewfinder of the T6s has a higher magnification than the one of the E-420 (0.51x vs 0.46x), 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 T6s and Olympus E-420 in connection with corresponding information for a sample of similar cameras.
|1.||Canon T6s||optical||Y||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|2.||Olympus E-420||optical||n||2.7 / 215||fixed||n||1/4000s||3.5/s||Y||n|
|3.||Canon 77D||optical||Y||3.0 / 1040||swivel||Y||1/4000s||6.0/s||Y||n|
|4.||Canon T7i||optical||n||3.0 / 1040||swivel||Y||1/4000s||6.0/s||Y||n|
|5.||Canon T6i||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|6.||Canon T5||optical||n||3.0 / 460||fixed||n||1/4000s||3.0/s||Y||n|
|7.||Canon T4i||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|8.||Canon T2i||optical||n||3.0 / 1040||fixed||n||1/4000s||3.7/s||Y||n|
|9.||Canon T1i||optical||n||3.0 / 920||fixed||n||1/4000s||3.4/s||Y||n|
|10.||Canon XSi||optical||n||3.0 / 230||fixed||n||1/4000s||3.5/s||Y||n|
|11.||Canon XTi||optical||n||2.5 / 230||fixed||n||1/4000s||3.0/s||Y||n|
|12.||Canon XT||optical||n||1.8 / 115||fixed||n||1/4000s||3.0/s||Y||n|
|13.||Olympus E-450||optical||n||2.7 / 215||fixed||n||1/4000s||3.5/s||Y||n|
|14.||Olympus E-620||optical||n||2.7 / 230||swivel||n||1/4000s||4.0/s||Y||Y|
|15.||Olympus E-520||optical||n||2.7 / 215||fixed||n||1/4000s||3.5/s||Y||Y|
|16.||Olympus E-410||optical||n||2.5 / 215||fixed||n||1/4000s||3.0/s||Y||n|
|17.||Olympus E-400||optical||n||2.5 / 215||fixed||n||1/4000s||3.0/s||Y||n|
|Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.|
One feature that is present on the T6s, but is missing on the E-420 is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.The T6s 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-420 does not have a selfie-screen.
The T6s writes its imaging data to SDXC cards, while the E-420 uses Compact Flash or xD Picture cards. The E-420 features dual card slots, which can be very useful in case a memory card fails. In contrast, the T6s 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 T6s and Olympus E-420 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon T6s||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|2.||Olympus E-420||Y||- / -||-||-||-||2.0||-||-||-|
|3.||Canon 77D||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|4.||Canon T7i||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|5.||Canon T6i||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|6.||Canon T5||Y||mono / mono||-||-||mini||2.0||-||-||-|
|7.||Canon T4i||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|8.||Canon T2i||Y||stereo / -||Y||-||mini||2.0||-||-||-|
|9.||Canon T1i||Y||mono / mono||-||-||mini||2.0||-||-||-|
|10.||Canon XSi||Y||- / -||-||-||mini||2.0||-||-||-|
|11.||Canon XTi||Y||- / -||-||-||-||2.0||-||-||-|
|12.||Canon XT||Y||- / -||-||-||-||2.0||-||-||-|
|13.||Olympus E-450||Y||- / -||-||-||-||2.0||-||-||-|
|14.||Olympus E-620||Y||- / -||-||-||-||2.0||-||-||-|
|15.||Olympus E-520||Y||- / -||-||-||-||2.0||-||-||-|
|16.||Olympus E-410||Y||- / -||-||-||-||2.0||-||-||-|
|17.||Olympus E-400||Y||- / -||-||-||-||2.0||-||-||-|
It is notable that the T6s offers wifi support, while the E-420 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.
Both the T6s and the E-420 have been discontinued, but can regularly be found used on ebay. The T6s was replaced by the Canon 77D, while the E-420 does not have a direct successor. 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 the Canon T6s better than the Olympus E-420 or vice versa? The listing below highlights the relative strengths of the two models.
Advantages of the Canon EOS Rebel T6s:
- More detail: Offers more megapixels (24 vs 10MP) with a 58% higher linear resolution.
- Better image quality: Scores substantially higher (14 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 (1.6 EV of extra DR).
- Better low-light sensitivity: Requires less light for good images (0.8 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 viewfinder image: Features a viewfinder with a higher magnification (0.51x vs 0.46x).
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- Larger screen: Has a bigger rear LCD (3.0" vs 2.7") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (1040k vs 215k 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 3.5 flaps/sec) to capture the decisive moment.
- 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 modern: Reflects 6 years and 11 months of technical progress since the E-420 launch.
Reasons to prefer the Olympus E-420:
- More compact: Is smaller (130x91mm vs 132x101mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 125g or 22 percent) and is thus easier to take along.
- Longer lasting: Gets more shots (500 versus 440) out of a single battery charge.
- 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 March 2008).
If the number of relative strengths (bullet points above) is taken as a guide, the T6s is the clear winner of the match-up (18 : 5 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 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 T6s and the Olympus E-420 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 comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains incomplete and does no justice, for example, to the way the T6s or the E-420 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 following table reports the overall ratings of the cameras as published by some of the major 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 T6s||5/5||+||..||77/100||4.5/5||4.5/5||Feb 2015||649||ebay.com|
|2.||Olympus E-420||..||85/100||..||+ +||4/5||4.5/5||Mar 2008||599||ebay.com|
|3.||Canon 77D||4.5/5||..||4/5||82/100||4.5/5||4/5||Feb 2017||899||ebay.com|
|4.||Canon T7i||4.5/5||..||3.5/5||80/100||4.5/5||4/5||Feb 2017||749||ebay.com|
|5.||Canon T6i||5/5||..||..||75/100||4.5/5||4.5/5||Feb 2015||749||ebay.com|
|6.||Canon T5||3/5||+||..||..||4/5||4.5/5||Feb 2014||449||ebay.com|
|7.||Canon T4i||4/5||+ +||..||77/100||4.5/5||4.5/5||Jun 2012||849||ebay.com|
|8.||Canon T2i||..||+ +||..||77/100||4/5||4.5/5||Feb 2010||699||ebay.com|
|9.||Canon T1i||..||+ +||..||74/100||4.5/5||4.5/5||Mar 2009||799||ebay.com|
|10.||Canon XSi||..||+ +||..||+ +||4/5||4.5/5||Jan 2008||799||ebay.com|
|11.||Canon XTi||..||+ +||..||+ +||o||4/5||Aug 2006||799||ebay.com|
|12.||Canon XT||..||80/100||..||+ +||o||..||Feb 2005||899||ebay.com|
|13.||Olympus E-450||..||..||..||..||4/5||4/5||Mar 2009||499||ebay.com|
|14.||Olympus E-620||3/5||88/100||..||72/100||4.5/5||5/5||Feb 2009||699||ebay.com|
|15.||Olympus E-520||..||87/100||..||+ +||4.5/5||4.5/5||May 2008||699||ebay.com|
|16.||Olympus E-410||..||86/100||..||+ +||4/5||4.5/5||Mar 2007||699||ebay.com|
|17.||Olympus E-400||..||85/100||..||..||4/5||4/5||Sep 2006||699||ebay.com|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. 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
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 T6s vs Fujifilm X-T100
- Canon T6s vs Nikon D810
- Canon T6s vs Nikon W300
- Canon T6s vs Panasonic FZ1000 II
- Canon T6s vs Pentax Q
- Canon T6s vs Sony A7R IV
- Fujifilm X10 vs Olympus E-420
- Leica Q2 vs Olympus E-420
- Leica TL vs Olympus E-420
- Olympus E-420 vs Olympus E-5
- Olympus E-420 vs Pentax K-70
- Olympus E-420 vs Sony A6500
Specifications: Canon T6s vs Olympus E-420
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 T6s||Olympus E-420|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Four Thirds lenses|
|Launch Date||February 2015||March 2008|
|Launch Price||USD 649||USD 599|
|Sensor Specs||Canon T6s||Olympus E-420|
|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 - 1,600 ISO|
|ISO Boost||100 - 25,600 ISO||no Enhancement|
|Image Processor||DIGIC 6||TruePic III|
|DXO Sensor Quality (score)||70||56|
|DXO Color Depth (bits)||22.6||21.5|
|DXO Dynamic Range (EV)||12.0||10.4|
|DXO Low Light (ISO)||915||527|
|Screen Specs||Canon T6s||Olympus E-420|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||95%||95%|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||2.7inch|
|LCD Resolution||1040k dots||215k dots|
|LCD Attachment||Swivel screen||Fixed screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Canon T6s||Olympus E-420|
|Focus System||Phase-detect AF||Phase-detect AF|
|Continuous Shooting||5 shutter flaps/s||3.5 shutter flaps/s|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||SDXC cards||CF or XD cards|
|Second Storage Option||Single card slot||Dual card slots|
|Connectivity Specs||Canon T6s||Olympus E-420|
|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 T6s||Olympus E-420|
|Battery Life (CIPA)||440 shots per charge||500 shots per charge|
132 x 101 x 78 mm
(5.2 x 4.0 x 3.1 in)
130 x 91 x 53 mm
(5.1 x 3.6 x 2.1 in)
|Camera Weight||565 g (19.9 oz)||440 g (15.5 oz)|
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