Canon 450D vs Panasonic G3
The Canon EOS 450D (called Canon XSi in some regions) and the Panasonic Lumix DMC-G3 are two digital cameras that were officially introduced, respectively, in January 2008 and May 2011. The 450D is a DSLR, while the G3 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (450D) 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 450D 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 450D 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 perspectives from the front, the top, and the back are available. 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 450D 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 (24 percent) than the Canon 450D. Moreover, the G3 is substantially lighter (36 percent) than the 450D. In this context, it is worth noting that neither the 450D 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 (450D) 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. 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 450D||129 mm||98 mm||62 mm||524 g||500||n||Jan 2008||799||ebay.com|
|2.||Panasonic G3||115 mm||84 mm||47 mm||336 g||270||n||May 2011||599||ebay.com|
|3.||Canon 750D||132 mm||101 mm||78 mm||555 g||440||n||Feb 2015||749||ebay.com|
|4.||Canon 760D||132 mm||101 mm||78 mm||565 g||440||n||Feb 2015||649||ebay.com|
|5.||Canon G1 X Mark II||116 mm||74 mm||66 mm||553 g||240||n||Feb 2014||799||ebay.com|
|6.||Canon 650D||133 mm||100 mm||79 mm||575 g||440||n||Jun 2012||849||ebay.com|
|7.||Canon G1 X||117 mm||81 mm||65 mm||534 g||250||n||Jan 2012||799||ebay.com|
|8.||Canon 1100D||130 mm||100 mm||78 mm||495 g||700||n||Feb 2011||449||ebay.com|
|9.||Canon 500D||129 mm||98 mm||62 mm||520 g||400||n||Mar 2009||799||ebay.com|
|10.||Canon 1000D||126 mm||98 mm||65 mm||502 g||500||n||Jun 2008||449||ebay.com|
|11.||Canon 400D||127 mm||84 mm||65 mm||556 g||370||n||Aug 2006||799||ebay.com|
|12.||Nikon D5000||127 mm||104 mm||80 mm||590 g||510||n||Apr 2009||749||ebay.com|
|13.||Panasonic G6||122 mm||85 mm||71 mm||390 g||340||n||Apr 2013||599||ebay.com|
|14.||Panasonic G5||120 mm||83 mm||71 mm||396 g||320||n||Jul 2012||599||ebay.com|
|15.||Panasonic GX1||116 mm||68 mm||39 mm||318 g||320||n||Nov 2011||699||ebay.com|
|16.||Panasonic G10||124 mm||84 mm||74 mm||388 g||380||n||Mar 2010||499||ebay.com|
|17.||Panasonic G2||124 mm||84 mm||74 mm||428 g||360||n||Mar 2010||599||ebay.com|
|Note: 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 retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The G3 was launched at a somewhat lower price (by 25 percent) than the 450D, 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 imaging sensor is a crucial determinant 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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon 450D features an APS-C sensor and the Panasonic G3 a Four Thirds sensor. The sensor area in the G3 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 450D 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 450D. 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 5.19μm for the 450D). However, it should be noted that the G3 is much more recent (by 3 years and 3 months) than the 450D, 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 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 450D 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 450D has a native sensitivity range from ISO 100 to ISO 1600. The corresponding ISO settings for the Panasonic Lumix DMC-G3 are ISO 160 to ISO 6400 (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.
Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 450D has a notably higher overall DXO score than the G3 (overall score 5 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 0.9 bits higher color depth, 0.2 EV in additional dynamic range, and 0.1 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.||Panasonic G3||Four Thirds||15.8||4592||3448||1080/60i||21.0||10.6||667||56|
|5.||Canon G1 X Mark II||1.5-inch||13.0||4160||3120||1080/30p||21.5||10.8||581||58|
|7.||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||21.4||11.6||618||61|
|15.||Panasonic GX1||Four Thirds||15.8||4592||3448||1080/60p||20.8||10.6||703||55|
|16.||Panasonic G10||Four Thirds||12.0||4000||3000||720/30p||21.2||10.1||411||52|
|17.||Panasonic G2||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||493||53|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. The G3 indeed provides for movie recording, while the 450D does not. The highest resolution format that the G3 can use is 1080/60i.
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 450D 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 450D (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 0.54x), 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 450D and Panasonic G3 in connection with corresponding information for a sample of similar cameras.
|1.||Canon 450D||optical||n||3.0 / 230||fixed||n||1/4000s||3.5/s||Y||n|
|2.||Panasonic G3||1440||n||3.0 / 460||swivel||Y||1/4000s||4.0/s||Y||n|
|3.||Canon 750D||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|4.||Canon 760D||optical||Y||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|5.||Canon G1 X Mark II||optional||n||3.0 / 1040||tilting||Y||1/4000s||5.2/s||Y||Y|
|6.||Canon 650D||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|7.||Canon G1 X||optical||n||3.0 / 922||swivel||n||1/4000s||1.9/s||Y||Y|
|8.||Canon 1100D||optical||n||2.7 / 230||fixed||n||1/4000s||3.0/s||Y||n|
|9.||Canon 500D||optical||n||3.0 / 920||fixed||n||1/4000s||3.4/s||Y||n|
|10.||Canon 1000D||optical||n||2.5 / 230||fixed||n||1/4000s||3.0/s||Y||n|
|11.||Canon 400D||optical||n||2.5 / 230||fixed||n||1/4000s||3.0/s||Y||n|
|12.||Nikon D5000||optical||n||2.7 / 230||full-flex||n||1/4000s||4.0/s||Y||n|
|13.||Panasonic G6||1440||n||3.0 / 1036||swivel||Y||1/4000s||7.0/s||Y||n|
|14.||Panasonic G5||1440||n||3.0 / 920||swivel||Y||1/4000s||6.0/s||Y||n|
|15.||Panasonic GX1||optional||n||3.0 / 460||fixed||Y||1/4000s||4.2/s||Y||n|
|16.||Panasonic G10||202||n||3.0 / 460||fixed||n||1/4000s||2.6/s||Y||n|
|17.||Panasonic G2||1440||n||3.0 / 460||swivel||Y||1/4000s||2.6/s||Y||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 G3 has a touchscreen, while the 450D 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 450D does not have a selfie-screen.
The 450D writes its imaging data to SDHC cards, while the G3 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 450D 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 450D||Y||- / -||-||-||mini||2.0||-||-||-|
|2.||Panasonic G3||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|3.||Canon 750D||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|4.||Canon 760D||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|5.||Canon G1 X Mark II||Y||stereo / mono||-||-||mini||2.0||Y||Y||-|
|6.||Canon 650D||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|7.||Canon G1 X||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|8.||Canon 1100D||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|9.||Canon 500D||Y||mono / mono||-||-||mini||2.0||-||-||-|
|10.||Canon 1000D||Y||- / -||-||-||-||2.0||-||-||-|
|11.||Canon 400D||Y||- / -||-||-||-||2.0||-||-||-|
|12.||Nikon D5000||Y||mono / mono||-||-||mini||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 G10||Y||mono / -||-||-||mini||2.0||-||-||-|
|17.||Panasonic G2||Y||stereo / mono||-||-||mini||2.0||-||-||-|
Both the 450D and the G3 have been discontinued, but can regularly be found used on ebay. The 450D was replaced by the Canon 500D, while the G3 was followed by the Panasonic G5. Further information on the features and operation of the 450D and G3 can be found, respectively, in the Canon 450D Manual (free pdf) or the online Panasonic G3 Manual.
So what conclusions can be drawn? Which of the two cameras – the Canon 450D or the Panasonic G3 – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.
Advantages of the Canon EOS 450D:
- Better image quality: Scores markedly higher (5 points) in the DXO overall assessment.
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Longer lasting: Can take more shots (500 versus 270) on a single battery charge.
- More heavily discounted: Has been available for much longer (launched in January 2008).
Reasons to prefer the Panasonic Lumix DMC-G3:
- More detail: Has more megapixels (15.8 vs 12.2MP), which boosts linear resolution by 12%.
- Broader imaging potential: Can capture not only stills but also 1080/60i video.
- 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 0.54x).
- 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 3.5 flaps/sec) to capture the decisive moment.
- More compact: Is smaller (115x84mm vs 129x98mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 188g or 36 percent) and is thus easier to take along.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- More affordable: Was released into a lower priced segment (25 percent cheaper at launch).
- More modern: Reflects 3 years and 3 months of technical progress since the 450D launch.
If the count of individual advantages (bullet points above) is taken as a guide, the G3 is the clear winner of the contest (15 : 4 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 450D 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 says little about, for example, the shooting experience and imaging performance of the 450D and the G3 in practical situations. 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 where reviews by experts come in. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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 450D||..||+ +||..||+ +||4/5||4.5/5||Jan 2008||799||ebay.com|
|2.||Panasonic G3||3/5||+ +||..||75/100||4.5/5||5/5||May 2011||599||ebay.com|
|3.||Canon 750D||5/5||..||..||75/100||4.5/5||4.5/5||Feb 2015||749||ebay.com|
|4.||Canon 760D||5/5||+||..||77/100||4.5/5||4.5/5||Feb 2015||649||ebay.com|
|5.||Canon G1 X Mark II||3/5||+||..||77/100||4/5||4.5/5||Feb 2014||799||ebay.com|
|6.||Canon 650D||4/5||+ +||..||77/100||4.5/5||4.5/5||Jun 2012||849||ebay.com|
|7.||Canon G1 X||5/5||+||..||76/100||4/5||4.5/5||Jan 2012||799||ebay.com|
|8.||Canon 1100D||..||80/100||..||69/100||4/5||4.5/5||Feb 2011||449||ebay.com|
|9.||Canon 500D||..||+ +||..||74/100||4.5/5||4.5/5||Mar 2009||799||ebay.com|
|10.||Canon 1000D||..||82/100||..||+ +||3.5/5||4.5/5||Jun 2008||449||ebay.com|
|11.||Canon 400D||..||+ +||..||+ +||o||4/5||Aug 2006||799||ebay.com|
|12.||Nikon D5000||..||+ +||..||75/100||4/5||4.5/5||Apr 2009||749||ebay.com|
|13.||Panasonic G6||4/5||+ +||..||..||5/5||4.5/5||Apr 2013||599||ebay.com|
|14.||Panasonic G5||3/5||+ +||..||..||4.5/5||4.5/5||Jul 2012||599||ebay.com|
|15.||Panasonic GX1||3/5||+||..||77/100||4.5/5||4.5/5||Nov 2011||699||ebay.com|
|16.||Panasonic G10||3/5||..||..||70/100||4/5||4/5||Mar 2010||499||ebay.com|
|17.||Panasonic G2||..||..||..||72/100||4/5||4.5/5||Mar 2010||599||ebay.com|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, though. The ratings are only valid when referring to cameras in the same category and of the same age. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, 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? In case you would like to check on the differences and similarities of other camera models, just use the search menu 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 X Mark II vs Canon 450D
- Canon 450D vs Canon G1 X Mark II
- Canon 450D vs Canon SL3
- Canon 450D vs Leica X2
- Canon 450D vs Nikon Z7
- Canon 450D vs Olympus E-M10 IV
- Kodak S-1 vs Panasonic G3
- Nikon D1X vs Panasonic G3
- Panasonic G3 vs Panasonic GH4
- Panasonic G3 vs Ricoh GR
- Panasonic G3 vs Sony A7
- Panasonic G3 vs Sony A7R IV
Specifications: Canon 450D 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 450D||Panasonic G3|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Canon EF mount lenses||Micro Four Thirds lenses|
|Launch Date||January 2008||May 2011|
|Launch Price||USD 799||USD 599|
|Sensor Specs||Canon 450D||Panasonic G3|
|Sensor Format||APS-C Sensor||Four Thirds Sensor|
|Sensor Size||22.2 x 14.8 mm||17.3 x 13.0 mm|
|Sensor Area||328.56 mm2||224.9 mm2|
|Sensor Diagonal||26.7 mm||21.6 mm|
|Sensor Resolution||12.2 Megapixels||15.8 Megapixels|
|Image Resolution||4272 x 2848 pixels||4592 x 3448 pixels|
|Pixel Pitch||5.19 μm||3.77 μm|
|Pixel Density||3.70 MP/cm2||7.04 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||no Video||1080/60i Video|
|ISO Setting||100 - 1,600 ISO||160 - 6,400 ISO|
|Image Processor||DIGIC 3||Venus FHD|
|DXO Sensor Quality (score)||61||56|
|DXO Color Depth (bits)||21.9||21.0|
|DXO Dynamic Range (EV)||10.8||10.6|
|DXO Low Light (ISO)||692||667|
|Screen Specs||Canon 450D||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||3.0inch||3.0inch|
|LCD Resolution||230k dots||460k dots|
|LCD Attachment||Fixed screen||Swivel screen|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Canon 450D||Panasonic G3|
|Focus System||Phase-detect AF||Contrast-detect AF|
|Continuous Shooting||3.5 shutter flaps/s||4 shutter flaps/s|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||SDHC cards||SDXC cards|
|Single or Dual Card Slots||Single card slot||Single card slot|
|UHS card support||no||no|
|Connectivity Specs||Canon 450D||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 450D||Panasonic G3|
|Battery Life (CIPA)||500 shots per charge||270 shots per charge|
129 x 98 x 62 mm
(5.1 x 3.9 x 2.4 in)
115 x 84 x 47 mm
(4.5 x 3.3 x 1.9 in)
|Camera Weight||524 g (18.5 oz)||336 g (11.9 oz)|
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