Canon T3 vs Panasonic G3
The Canon EOS Rebel T3 (called Canon 1100D in some regions) and the Panasonic Lumix DMC-G3 are two digital cameras that were revealed to the public, respectively, in February 2011 and May 2011. The T3 is a DSLR, while the G3 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (T3) and a Four Thirds (G3) sensor. The Canon has a resolution of 12.2 megapixels, whereas the Panasonic provides 15.8 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 T3 and the Panasonic Lumix DMC-G3? 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 T3 and the Panasonic G3 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth measures are rounded to the nearest millimeter.
The G3 can be obtained in four different colors (black, brown, red, white), while the T3 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 Panasonic G3 is notably smaller (26 percent) than the Canon T3. Moreover, the G3 is markedly lighter (32 percent) than the T3. In this context, it is worth noting that neither the T3 nor the G3 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 (T3) and the Micro Four Thirds Lens Catalog (G3). Mirrorless cameras, such as the G3, 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 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 T3||130 mm||100 mm||78 mm||495 g||700||n||Feb 2011||449|
|2.||Panasonic G3||115 mm||84 mm||47 mm||336 g||270||n||May 2011||599|
|3.||Canon T100||129 mm||102 mm||77 mm||436 g||500||n||Feb 2018||399|
|4.||Canon T5||130 mm||100 mm||78 mm||480 g||500||n||Feb 2014||449|
|5.||Canon G1 X||117 mm||81 mm||65 mm||534 g||250||n||Jan 2012||799|
|6.||Canon SX50||123 mm||87 mm||106 mm||595 g||315||n||Sep 2012||429|
|7.||Canon T4i||133 mm||100 mm||79 mm||575 g||440||n||Jun 2012||849|
|8.||Canon T3i||133 mm||100 mm||80 mm||570 g||440||n||Feb 2011||599|
|9.||Canon T2i||129 mm||98 mm||62 mm||530 g||440||n||Feb 2010||699|
|10.||Canon XS||126 mm||98 mm||65 mm||502 g||500||n||Jun 2008||449|
|11.||Canon XSi||129 mm||98 mm||62 mm||524 g||500||n||Jan 2008||799|
|12.||Canon XTi||127 mm||84 mm||65 mm||556 g||370||n||Aug 2006||799|
|13.||Panasonic G6||122 mm||85 mm||71 mm||390 g||340||n||Apr 2013||599|
|14.||Panasonic G5||120 mm||83 mm||71 mm||396 g||320||n||Jul 2012||599|
|15.||Panasonic GX1||116 mm||68 mm||39 mm||318 g||320||n||Nov 2011||699|
|16.||Panasonic G2||124 mm||84 mm||74 mm||428 g||360||n||Mar 2010||599|
|17.||Panasonic GH2||124 mm||90 mm||76 mm||442 g||330||n||Sep 2010||899|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will naturally be influenced heavily by the price. 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 somewhat lower price (by 25 percent) than the G3, which makes it more attractive for photographers on a tight budget. 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 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. 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.
Of the two cameras under consideration, the Canon T3 features an APS-C sensor and the Panasonic G3 a Four Thirds sensor. The sensor area in the G3 is 30 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 T3 has a native 3:2 aspect ratio, while the one in the G3 offers a 4:3 aspect.
Despite having a smaller sensor, the G3 offers a higher resolution of 15.8 megapixels, compared with 12.2 MP of the T3. 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 3.77μm versus 5.15μm for the T3). However, it should be noted that the G3 is a somewhat more recent model (by 3 months) than the T3, and its sensor might have benefitted from technological advances during this time that partly offset its pixel-size disadvantage.
The resolution advantage of the Panasonic G3 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the G3 for good quality output (200 dots per inch) amounts to 23 x 17.2 inches or 58.3 x 43.8 cm, for very good quality (250 dpi) 18.4 x 13.8 inches or 46.7 x 35 cm, and for excellent quality (300 dpi) 15.3 x 11.5 inches or 38.9 x 29.2 cm. The corresponding values for the Canon T3 are 21.4 x 14.2 inches or 54.3 x 36.2 cm for good quality, 17.1 x 11.4 inches or 43.4 x 28.9 cm for very good quality, and 14.2 x 9.5 inches or 36.2 x 24.1 cm for excellent quality prints.
The Canon EOS Rebel T3 has a native sensitivity range from ISO 100 to ISO 6400. The corresponding ISO settings for the Panasonic Lumix DMC-G3 are ISO 160 to ISO 6400 (no boost).
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 review, the T3 has a notably higher overall DXO score than the G3 (overall score 6 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 0.9 bits higher color depth, 0.4 EV in additional dynamic range, and 0.2 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|2.||Panasonic G3||Four Thirds||15.8||4592||3448||1080/60i||21.0||10.6||667||56|
|5.||Canon G1 X||1.5-inch||14.2||4352||3264||1080/24p||21.7||10.8||644||60|
|13.||Panasonic G6||Four Thirds||15.9||4608||3456||1080/60p||21.3||11.5||639||61|
|14.||Panasonic G5||Four Thirds||15.9||4608||3456||1080/60p||22.3||11.9||643||66|
|15.||Panasonic GX1||Four Thirds||15.8||4592||3448||1080/60p||20.8||10.6||703||55|
|16.||Panasonic G2||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||493||53|
|17.||Panasonic GH2||Four Thirds||15.9||4608||3456||1080/60i||21.2||11.3||655||60|
|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. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the G3 provides a better video resolution than the T3. It can shoot movie footage at 1080/60i, while the Canon is limited to 720/30p.
Beyond body and sensor, cameras can and do differ across a range of features. For example, the G3 has an electronic viewfinder (1440k dots), while the T3 has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinder in the G3 offers a wider field of view (100%) than the one in the T3 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the G3 has a higher magnification (0.70x vs 0.50x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The following table reports on some other key feature differences and similarities of the Canon T3, the Panasonic G3, and comparable cameras.
|1.||Canon T3||optical||n||2.7 / 230||fixed||n||1/4000s||3.0||Y||n|
|2.||Panasonic G3||1440||n||3.0 / 460||swivel||Y||1/4000s||4.0||Y||n|
|3.||Canon T100||optical||n||2.7 / 230||fixed||n||1/4000s||3.0||Y||n|
|4.||Canon T5||optical||n||3.0 / 460||fixed||n||1/4000s||3.0||Y||n|
|5.||Canon G1 X||optical||n||3.0 / 922||swivel||n||1/4000s||1.9||Y||Y|
|6.||Canon SX50||202||n||3.0 / 461||swivel||n||1/2000s||2.2||Y||Y|
|7.||Canon T4i||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0||Y||n|
|8.||Canon T3i||optical||n||3.0 / 1040||swivel||n||1/4000s||3.7||Y||n|
|9.||Canon T2i||optical||n||3.0 / 1040||fixed||n||1/4000s||3.7||Y||n|
|10.||Canon XS||optical||n||2.5 / 230||fixed||n||1/4000s||3.0||Y||n|
|11.||Canon XSi||optical||n||3.0 / 230||fixed||n||1/4000s||3.5||Y||n|
|12.||Canon XTi||optical||n||2.5 / 230||fixed||n||1/4000s||3.0||Y||n|
|13.||Panasonic G6||1440||n||3.0 / 1036||swivel||Y||1/4000s||7.0||Y||n|
|14.||Panasonic G5||1440||n||3.0 / 920||swivel||Y||1/4000s||6.0||Y||n|
|15.||Panasonic GX1||optional||n||3.0 / 460||fixed||Y||1/4000s||4.2||Y||n|
|16.||Panasonic G2||1440||n||3.0 / 460||swivel||Y||1/4000s||2.6||Y||n|
|17.||Panasonic GH2||1534||n||3.0 / 460||swivel||n||1/4000s||3.0||Y||n|
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The G3 has a touchscreen, while the T3 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.The G3 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 T3 does not have a selfie-screen.
Concerning the storage of imaging data, both the T3 and the G3 write their files to 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 Rebel T3 and Panasonic Lumix DMC-G3 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon T3||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|2.||Panasonic G3||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|3.||Canon T100||Y||mono / mono||-||-||mini||2.0||Y||Y||-|
|4.||Canon T5||Y||mono / mono||-||-||mini||2.0||-||-||-|
|5.||Canon G1 X||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|6.||Canon SX50||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|7.||Canon T4i||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|8.||Canon T3i||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|9.||Canon T2i||Y||stereo / -||Y||-||mini||2.0||-||-||-|
|10.||Canon XS||Y||- / -||-||-||-||2.0||-||-||-|
|11.||Canon XSi||Y||- / -||-||-||mini||2.0||-||-||-|
|12.||Canon XTi||Y||- / -||-||-||-||2.0||-||-||-|
|13.||Panasonic G6||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|14.||Panasonic G5||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|15.||Panasonic GX1||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|16.||Panasonic G2||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|17.||Panasonic GH2||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
Both the T3 and the G3 have been discontinued, but can regularly be found used on eBay. The T3 was replaced by the Canon T5, while the G3 was followed by the Panasonic G5. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Panasonic websites.
So how do things add up? Which of the two cameras – the Canon T3 or the Panasonic G3 – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of the Canon EOS Rebel T3:
- Better image quality: Scores markedly higher (6 points) in the DXO overall assessment.
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Longer lasting: Can take more shots (700 versus 270) on a single battery charge.
- More affordable: Was introduced into a lower priced segment (25 percent cheaper at launch).
- More heavily discounted: Has been on the market for longer (launched in February 2011).
Reasons to prefer the Panasonic Lumix DMC-G3:
- More detail: Has more megapixels (15.8 vs 12.2MP), which boosts linear resolution by 12%.
- Better video: Provides higher definition movie capture (1080/60i vs 720/30p).
- More framing info: Has an electronic viewfinder that displays shooting data.
- 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 (0.70x vs 0.50x).
- 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 (460k vs 230k dots).
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Faster burst: Shoots at higher frequency (4 vs 3 flaps/sec) to capture the decisive moment.
- More compact: Is smaller (115x84mm vs 130x100mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 159g or 32 percent) and is thus easier to take along.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- More modern: Was introduced somewhat (3 months) more recently.
If the count of individual advantages (bullet points above) is taken as a guide, the G3 is the clear winner of the contest (15 : 5 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 T3 and the Panasonic G3 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 remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the T3 or the G3. 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 T3||..||80/100||..||69/100||4/5||4.5/5||Feb 2011||449|
|2.||Panasonic G3||3/5||+ +||..||75/100||4.5/5||5/5||May 2011||599|
|3.||Canon T100||..||o||3/5||..||3.5/5||3.5/5||Feb 2018||399|
|4.||Canon T5||3/5||+||..||..||4/5||4.5/5||Feb 2014||449|
|5.||Canon G1 X||5/5||+||..||76/100||4/5||4.5/5||Jan 2012||799|
|6.||Canon SX50||3/5||+ +||..||72/100||4.5/5||4.5/5||Sep 2012||429|
|7.||Canon T4i||4/5||+ +||..||77/100||4.5/5||4.5/5||Jun 2012||849|
|8.||Canon T3i||3/5||o||..||77/100||4.5/5||4.5/5||Feb 2011||599|
|9.||Canon T2i||..||+ +||..||77/100||4/5||4.5/5||Feb 2010||699|
|10.||Canon XS||..||82/100||..||+ +||3.5/5||4.5/5||Jun 2008||449|
|11.||Canon XSi||..||+ +||..||+ +||4/5||4.5/5||Jan 2008||799|
|12.||Canon XTi||..||+ +||..||+ +||o||4/5||Aug 2006||799|
|13.||Panasonic G6||4/5||+ +||..||..||5/5||4.5/5||Apr 2013||599|
|14.||Panasonic G5||3/5||+ +||..||..||4.5/5||4.5/5||Jul 2012||599|
|15.||Panasonic GX1||3/5||+||..||77/100||4.5/5||4.5/5||Nov 2011||699|
|16.||Panasonic G2||..||..||..||72/100||4/5||4.5/5||Mar 2010||599|
|17.||Panasonic GH2||5/5||+ +||..||79/100||4.5/5||5/5||Sep 2010||899|
|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. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. 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? In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. 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 SX710 vs Canon T3
- Canon T3 vs Fujifilm X-T4
- Canon T3 vs Olympus E-PL1
- Canon T3 vs Sony A58
- Canon T3 vs Sony A7
- Canon T3 vs Sony NEX-5N
- Leica X-U Typ 113 vs Panasonic G3
- Panasonic FZ150 vs Panasonic G3
- Panasonic G110 vs Panasonic G3
- Panasonic G3 vs Panasonic GF6
- Panasonic G3 vs Ricoh GR
- Panasonic G3 vs Sony RX100 III
Specifications: Canon T3 vs Panasonic G3
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 T3||Panasonic G3|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Canon EF mount lenses||Micro Four Thirds lenses|
|Launch Date||February 2011||May 2011|
|Launch Price||USD 449||USD 599|
|Sensor Specs||Canon T3||Panasonic G3|
|Sensor Format||APS-C Sensor||Four Thirds Sensor|
|Sensor Size||22.0 x 14.7 mm||17.3 x 13.0 mm|
|Sensor Area||323.4 mm2||224.9 mm2|
|Sensor Diagonal||26.5 mm||21.6 mm|
|Sensor Resolution||12.2 Megapixels||15.8 Megapixels|
|Image Resolution||4272 x 2848 pixels||4592 x 3448 pixels|
|Pixel Pitch||5.15 μm||3.77 μm|
|Pixel Density||3.76 MP/cm2||7.04 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||720/30p Video||1080/60i Video|
|ISO Setting||100 - 6,400 ISO||160 - 6,400 ISO|
|Image Processor||DIGIC 4||Venus FHD|
|DXO Sensor Quality (score)||62||56|
|DXO Color Depth (bits)||21.9||21.0|
|DXO Dynamic Range (EV)||11.0||10.6|
|DXO Low Light (ISO)||755||667|
|Screen Specs||Canon T3||Panasonic G3|
|Viewfinder Type||Optical viewfinder||Electronic viewfinder|
|Viewfinder Field of View||95%||100%|
|Viewfinder Resolution||1440k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||2.7inch||3.0inch|
|LCD Resolution||230k dots||460k dots|
|LCD Attachment||Fixed screen||Swivel screen|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Canon T3||Panasonic G3|
|Focus System||Phase-detect AF||Contrast-detect AF|
|Continuous Shooting||3 shutter flaps/s||4 shutter flaps/s|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||no||no|
|Connectivity Specs||Canon T3||Panasonic G3|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||mini HDMI|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Canon T3||Panasonic G3|
|Battery Life (CIPA)||700 shots per charge||270 shots per charge|
130 x 100 x 78 mm
(5.1 x 3.9 x 3.1 in)
115 x 84 x 47 mm
(4.5 x 3.3 x 1.9 in)
|Camera Weight||495 g (17.5 oz)||336 g (11.9 oz)|
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