Canon 20D vs T3
The Canon EOS 20D and the Canon EOS Rebel T3 (labelled Canon 1100D in some countries) are two digital cameras that were revealed to the public, respectively, in August 2004 and February 2011. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The 20D has a resolution of 8.2 megapixels, whereas the T3 provides 12.2 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Canon 20D||Canon T3|
|Digital single lens reflex||Digital single lens reflex|
|Canon EF mount lenses||Canon EF mount lenses|
|8.2 MP, APS-C Sensor||12.2 MP, APS-C Sensor|
|no Video||720/30p Video|
|ISO 100-1600 (100-3200)||ISO 100-6400|
|Optical viewfinder||Optical viewfinder|
|1.8" LCD, 118k dots||2.7" LCD, 230k dots|
|Fixed screen (not touch-sensitive)||Fixed screen (not touch-sensitive)|
|5 shutter flaps per second||3 shutter flaps per second|
|700 shots per battery charge||700 shots per battery charge|
|144 x 106 x 72 mm, 770 g||130 x 100 x 78 mm, 495 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 20D and the Canon EOS Rebel T3? 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 physical size and weight of the Canon 20D and the Canon T3 are illustrated 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 width, height and depth 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 Canon T3 is notably smaller (15 percent) than the Canon 20D. Moreover, the T3 is substantially lighter (36 percent) than the 20D. In this context, it is worth noting that neither the 20D nor the T3 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. In this particular case, both cameras feature the same lens mount, so that they can use the same lenses. You can compare the optics available in the Canon EF Lens Catalog.
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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 20D»||5.7 in||4.2 in||2.8 in||27.2 oz||700||n||Aug 2004||1,499||-||Canon 20D|
|Canon T3«||5.1 in||3.9 in||3.1 in||17.5 oz||700||n||Feb 2011||449||-||Canon T3|
|Canon T100« »||5.1 in||4.0 in||3.0 in||15.4 oz||500||n||Feb 2018||399||Canon T100|
|Canon 7D II« »||5.9 in||4.4 in||3.1 in||32.1 oz||670||Y||Sep 2014||1,799||Canon 7D II|
|Canon T5« »||5.1 in||3.9 in||3.1 in||16.9 oz||500||n||Feb 2014||449||-||Canon T5|
|Canon G1 X« »||4.6 in||3.2 in||2.6 in||18.8 oz||250||n||Jan 2012||799||-||Canon G1 X|
|Canon T4i« »||5.2 in||3.9 in||3.1 in||20.3 oz||440||n||Jun 2012||849||-||Canon T4i|
|Canon 60D« »||5.7 in||4.2 in||3.1 in||26.6 oz||1100||Y||Aug 2010||1,399||-||Canon 60D|
|Canon 7D« »||5.8 in||4.4 in||2.9 in||30.3 oz||800||Y||Sep 2009||1,699||-||Canon 7D|
|Canon 50D« »||5.7 in||4.3 in||2.9 in||29.0 oz||800||Y||Aug 2008||1,299||-||Canon 50D|
|Canon XS« »||5.0 in||3.9 in||2.6 in||17.7 oz||500||n||Jun 2008||449||-||Canon XS|
|Canon 40D« »||5.7 in||4.3 in||2.9 in||29.0 oz||750||n||Aug 2007||1,299||-||Canon 40D|
|Canon 30D« »||5.7 in||4.2 in||2.9 in||27.7 oz||750||n||Feb 2006||1,399||-||Canon 30D|
|Canon XT« »||5.0 in||3.7 in||2.5 in||19.0 oz||400||n||Feb 2005||899||-||Canon XT|
|Canon 10D« »||5.9 in||4.2 in||3.0 in||30.0 oz||500||n||Feb 2003||1,999||-||Canon 10D|
|Canon Rebel« »||5.6 in||3.9 in||2.8 in||22.9 oz||400||n||Aug 2003||899||-||Canon Rebel|
|Nikon D200« »||5.8 in||4.4 in||2.9 in||32.5 oz||400||Y||Nov 2005||1,699||-||Nikon D200|
|Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.|
Any camera decision will obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The T3 was launched at a markedly lower price (by 70 percent) than the 20D, which puts it into a different market segment. 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
The imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the T3 is 4 percent smaller. They nevertheless have the same format factor of 1.6. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Technology-wise, the T3 uses a more advanced image processing engine (DIGIC 4) than the 20D (DIGIC 2), with benefits for noise reduction, color accuracy, and processing speed.
Despite having a slightly smaller sensor, the T3 offers a higher resolution of 12.2 megapixels, compared with 8.2 MP of the 20D. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 5.15μm versus 6.42μm for the 20D). However, it should be noted that the T3 is much more recent (by 6 years and 5 months) than the 20D, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.
The resolution advantage of the Canon T3 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the T3 for good quality output (200 dots per inch) amounts to 21.4 x 14.2 inch or 54.3 x 36.2 cm, for very good quality (250 dpi) 17.1 x 11.4 inch or 43.4 x 28.9 cm, and for excellent quality (300 dpi) 14.2 x 9.5 inch or 36.2 x 24.1 cm. The corresponding values for the Canon 20D are 17.5 x 11.7 inch or 44.5 x 29.7 cm for good quality, 14 x 9.3 inch or 35.6 x 23.7 cm for very good quality, and 11.7 x 7.8 inch or 29.7 x 19.8 cm for excellent quality prints.
The Canon EOS 20D has a native sensitivity range from ISO 100 to ISO 1600, which can be extended to ISO 100-3200. The corresponding ISO settings for the Canon EOS Rebel T3 are ISO 100 to ISO 6400 (no boost).
Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Canon 20D»||APS-C||8.2||3504||2336||-||21.9||11.0||721||62||Canon 20D|
|Canon T3«||APS-C||12.2||4272||2848||720/30p||21.9||11.0||755||62||Canon T3|
|Canon T100« »||APS-C||17.9||5184||3456||1080/30p||21.9||11.4||695||63||Canon T100|
|Canon 7D II« »||APS-C||20.0||5472||3648||1080/60p||22.4||11.8||1082||70||Canon 7D II|
|Canon T5« »||APS-C||17.9||5184||3456||1080/30p||21.9||11.3||724||63||Canon T5|
|Canon G1 X« »||1.5-inch||14.2||4352||3264||1080/24p||21.7||10.8||644||60||Canon G1 X|
|Canon T4i« »||APS-C||17.9||5184||3456||1080/30p||21.7||11.2||722||62||Canon T4i|
|Canon 60D« »||APS-C||17.9||5184||3456||1080/30p||22.2||11.5||813||66||Canon 60D|
|Canon 7D« »||APS-C||17.9||5184||3456||1080/30p||22.0||11.7||854||66||Canon 7D|
|Canon 50D« »||APS-C||15.1||4752||3168||-||21.8||11.4||696||63||Canon 50D|
|Canon XS« »||APS-C||10.1||3888||2592||-||-||-||-||-||Canon XS|
|Canon 40D« »||APS-C||10.1||3888||2592||-||22.1||11.3||703||64||Canon 40D|
|Canon 30D« »||APS-C||8.2||3504||2336||-||21.5||10.8||736||59||Canon 30D|
|Canon XT« »||APS-C||8.0||3456||2304||-||21.8||10.8||637||60||Canon XT|
|Canon 10D« »||APS-C||6.3||3072||2048||-||21.1||10.9||571||57||Canon 10D|
|Canon Rebel« »||APS-C||6.3||3072||2048||-||21.0||10.8||544||55||Canon Rebel|
|Nikon D200« »||APS-C||10.0||3872||2592||-||22.3||11.5||583||64||Nikon D200|
Many modern cameras are not only capable of taking still images, but can also record movies. The T3 indeed provides for movie recording, while the 20D does not. The highest resolution format that the T3 can use is 720/30p.
Apart from body and sensor, cameras can and do differ across a variety of features. The 20D and the T3 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 20D has a higher magnification than the one of the T3 (0.56x vs 0.50x), 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 20D and Canon T3 along with similar information for a selection of comparators.
|Canon 20D»||optical||Y||1.8||118||fixed||n||1/8000s||5.0||Y||n||Canon 20D|
|Canon T3«||optical||n||2.7||230||fixed||n||1/4000s||3.0||Y||n||Canon T3|
|Canon T100« »||optical||n||2.7||230||fixed||n||1/4000s||3.0||Y||n||Canon T100|
|Canon 7D II« »||optical||Y||3.0||1040||fixed||n||1/8000s||10.0||Y||n||Canon 7D II|
|Canon T5« »||optical||n||3.0||460||fixed||n||1/4000s||3.0||Y||n||Canon T5|
|Canon G1 X« »||optical||n||3.0||922||Swivel||n||1/4000s||1.9||Y||Y||Canon G1 X|
|Canon T4i« »||optical||n||3.0||1040||swivel||Y||1/4000s||5.0||Y||n||Canon T4i|
|Canon 60D« »||optical||Y||3.0||1040||swivel||n||1/8000s||5.3||Y||n||Canon 60D|
|Canon 7D« »||optical||Y||3.0||920||fixed||n||1/8000s||8.0||Y||n||Canon 7D|
|Canon 50D« »||optical||Y||3.0||920||fixed||n||1/8000s||6.3||Y||n||Canon 50D|
|Canon XS« »||optical||n||2.5||230||fixed||n||1/4000s||3.0||Y||n||Canon XS|
|Canon 40D« »||optical||Y||3.0||230||fixed||n||1/8000s||6.5||Y||n||Canon 40D|
|Canon 30D« »||optical||Y||2.5||230||fixed||n||1/8000s||5.0||Y||n||Canon 30D|
|Canon XT« »||optical||n||1.8||115||fixed||n||1/4000s||3.0||Y||n||Canon XT|
|Canon 10D« »||optical||Y||1.8||118||fixed||n||1/4000s||3.0||Y||n||Canon 10D|
|Canon Rebel« »||optical||n||1.8||118||fixed||n||1/4000s||2.5||Y||n||Canon Rebel|
|Nikon D200« »||optical||Y||2.5||230||fixed||n||1/8000s||5.0||Y||n||Nikon D200|
One feature that is present on the 20D, but is missing on the T3 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 20D writes its imaging data to Compact Flash cards, while the T3 uses SDXC 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 20D and Canon EOS Rebel T3 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Canon 20D»||Y||-||-||-||-||-||1.1||-||-||-||Canon 20D|
|Canon T3«||Y||stereo||mono||-||-||mini||2.0||-||-||-||Canon T3|
|Canon T100« »||Y||mono||mono||-||-||mini||2.0||Y||Y||-||Canon T100|
|Canon 7D II« »||Y||stereo||mono||Y||Y||mini||3.0||-||-||-||Canon 7D II|
|Canon T5« »||Y||mono||mono||-||-||mini||2.0||-||-||-||Canon T5|
|Canon G1 X« »||Y||stereo||mono||-||-||mini||2.0||-||-||-||Canon G1 X|
|Canon T4i« »||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Canon T4i|
|Canon 60D« »||Y||mono||mono||Y||-||mini||2.0||-||-||-||Canon 60D|
|Canon 7D« »||Y||mono||-||Y||-||mini||2.0||-||-||-||Canon 7D|
|Canon 50D« »||Y||-||-||-||-||mini||2.0||-||-||-||Canon 50D|
|Canon XS« »||Y||-||-||-||-||-||2.0||-||-||-||Canon XS|
|Canon 40D« »||Y||-||-||-||-||-||2.0||-||-||-||Canon 40D|
|Canon 30D« »||Y||-||-||-||-||-||2.0||-||-||-||Canon 30D|
|Canon XT« »||Y||-||-||-||-||-||2.0||-||-||-||Canon XT|
|Canon 10D« »||Y||-||-||-||-||-||1.1||-||-||-||Canon 10D|
|Canon Rebel« »||Y||-||-||-||-||-||1.1||-||-||-||Canon Rebel|
|Nikon D200« »||Y||-||-||-||-||-||2.0||-||-||-||Nikon D200|
Studio photographers will appreciate that the Canon 20D (unlike the T3) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the 20D and the T3 have been discontinued, but can regularly be found used on eBay. The 20D was replaced by the Canon 30D, while the T3 was followed by the Canon T5. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon website.
So how do things add up? Is there a clear favorite between the Canon 20D and the Canon T3? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.
Arguments in favor of the Canon EOS 20D:
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.56x vs 0.50x).
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (5 vs 3 flaps/sec) to capture the decisive moment.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- More heavily discounted: Has been available for much longer (launched in August 2004).
Advantages of the Canon EOS Rebel T3:
- More detail: Has more megapixels (12.2 vs 8.2MP), which boosts linear resolution by 22%.
- Better jpgs: Has a more modern image processing engine (DIGIC 4 vs DIGIC 2).
- Broader imaging potential: Can capture not only stills but also 720/30p video.
- Larger screen: Has a bigger rear LCD (2.7" vs 1.8") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (230k vs 118k dots).
- More compact: Is smaller (130x100mm vs 144x106mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 275g or 36 percent) and is thus easier to take along.
- Faster data transfer: Supports a more advanced USB protocol (2.0 vs 1.1).
- More affordable: Was introduced into a lower priced category (70 percent cheaper at launch).
- More modern: Reflects 6 years and 5 months of technical progress since the 20D launch.
If the count of individual advantages (bullet points above) is taken as a guide, the T3 is the clear winner of the contest (10 : 6 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding 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 20D and the Canon T3 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 20D or the T3 perform in practice. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.
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 (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 20D»||-||+ +||-||o||-||Aug 2004||1,499||-||Canon 20D|
|Canon T3«||80/100||69/100||4/5||4/5||4.5/5||Feb 2011||449||-||Canon T3|
|Canon T100« »||o||-||3.5/5||-||3.5/5||Feb 2018||399||Canon T100|
|Canon 7D II« »||+||84/100||4/5||5/5||4.5/5||Sep 2014||1,799||Canon 7D II|
|Canon T5« »||+||-||4/5||4/5||4.5/5||Feb 2014||449||-||Canon T5|
|Canon G1 X« »||+||76/100||4/5||4/5||4.5/5||Jan 2012||799||-||Canon G1 X|
|Canon T4i« »||+ +||77/100||4.5/5||4.5/5||4.5/5||Jun 2012||849||-||Canon T4i|
|Canon 60D« »||+||79/100||4/5||5/5||4.5/5||Aug 2010||1,399||-||Canon 60D|
|Canon 7D« »||+ +||84/100||4.5/5||5/5||4.5/5||Sep 2009||1,699||-||Canon 7D|
|Canon 50D« »||+ +||+ +||4.5/5||5/5||4.5/5||Aug 2008||1,299||-||Canon 50D|
|Canon XS« »||82/100||+ +||3.5/5||4/5||4.5/5||Jun 2008||449||-||Canon XS|
|Canon 40D« »||+ +||+ +||4.5/5||o||4.5/5||Aug 2007||1,299||-||Canon 40D|
|Canon 30D« »||+ +||+ +||o||o||-||Feb 2006||1,399||-||Canon 30D|
|Canon XT« »||80/100||+ +||o||o||-||Feb 2005||899||-||Canon XT|
|Canon 10D« »||-||+ +||-||o||-||Feb 2003||1,999||-||Canon 10D|
|Canon Rebel« »||-||+ +||-||o||-||Aug 2003||899||-||Canon Rebel|
|Nikon D200« »||+ +||+ +||o||5/5||-||Nov 2005||1,699||-||Nikon D200|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (-) not available.|
Care should be taken when interpreting the review scores above, 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. 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.
Specifications: Canon 20D vs Canon T3
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 20D||Canon T3|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Canon EF mount lenses|
|Launch Date||August 2004||February 2011|
|Launch Price||USD 1499||USD 449|
|Sensor Specs||Canon 20D||Canon T3|
|Sensor Format||APS-C Sensor||APS-C Sensor|
|Sensor Size||22.5 x 15.0 mm||22.0 x 14.7 mm|
|Sensor Area||337.5 mm2||323.4 mm2|
|Sensor Diagonal||27 mm||26.5 mm|
|Sensor Resolution||8.2 Megapixels||12.2 Megapixels|
|Image Resolution||3504 x 2336 pixels||4272 x 2848 pixels|
|Pixel Pitch||6.42 μm||5.15 μm|
|Pixel Density||2.43 MP/cm2||3.76 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||no Video||720/30p Video|
|ISO Setting||100-1600 ISO||100-6400 ISO|
|ISO Boost||100-3200 ISO||no Enhancement|
|Image Processor||DIGIC 2||DIGIC 4|
|DXO Sensor Quality (score)||62||62|
|DXO Color Depth (bits)||21.9||21.9|
|DXO Dynamic Range (EV)||11.0||11.0|
|DXO Low Light (ISO)||721||755|
|Screen Specs||Canon 20D||Canon T3|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||95%||95%|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View|
|Rear LCD Size||1.8 inch||2.7 inch|
|LCD Resolution||118k dots||230k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Canon 20D||Canon T3|
|Autofocus System||Phase-detect AF||Phase-detect AF|
|Continuous Shooting||5 shutter flaps/s||3 shutter flaps/s|
|Shutter Life Expectancy||50 000 actuations||100 000 actuations|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||CF cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|Connectivity Specs||Canon 20D||Canon T3|
|Studio Flash||PC Sync socket||no PC Sync|
|USB Connector||USB 1.1||USB 2.0|
|HDMI Port||no HDMI||mini HDMI|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Canon 20D||Canon T3|
|Battery Life (CIPA)||700 shots per charge||700 shots per charge|
144 x 106 x 72 mm
(5.7 x 4.2 x 2.8 in)
130 x 100 x 78 mm
(5.1 x 3.9 x 3.1 in)
|Camera Weight||770 g (27.2 oz)||495 g (17.5 oz)|
Did you notice an error on this page? If so, please get in touch, so that we can correct the information.