Canon 450D vs G3X
The Canon EOS 450D (called Canon XSi in some regions) and the Canon PowerShot G3 X are two digital cameras that were announced, respectively, in January 2008 and June 2015. The 450D is a DSLR, while the G3X is a fixed lens compact. The cameras are based on an APS-C (450D) and an one-inch (G3X) sensor. The 450D has a resolution of 12.2 megapixels, whereas the G3X provides 20 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 Canon PowerShot G3 X? 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 450D and the Canon G3 X. 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 Canon G3 X is notably smaller (25 percent) than the Canon 450D. It is noteworthy in this context that the G3X is splash and dust-proof, while the 450D does not feature any corresponding weather-sealing.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G3X has a lens built in, whereas the 450D is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the 450D and their specifications 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, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.
|1.||Canon 450D||129 mm||98 mm||62 mm||524 g||500||n||Jan 2008||799||ebay.com|
|2.||Canon G3 X||123 mm||77 mm||105 mm||733 g||300||Y||Jun 2015||999||amazon.com|
|3.||Canon 80D||139 mm||105 mm||79 mm||730 g||960||Y||Feb 2016||1,199||ebay.com|
|4.||Canon 750D||132 mm||101 mm||78 mm||555 g||440||n||Feb 2015||749||ebay.com|
|5.||Canon 760D||132 mm||101 mm||78 mm||565 g||440||n||Feb 2015||649||ebay.com|
|6.||Canon G9 X||98 mm||58 mm||31 mm||209 g||220||n||Oct 2015||529||ebay.com|
|7.||Canon G1 X Mark II||116 mm||74 mm||66 mm||553 g||240||n||Feb 2014||799||ebay.com|
|8.||Canon G7 X||103 mm||60 mm||40 mm||304 g||210||n||Sep 2014||699||ebay.com|
|9.||Canon 70D||139 mm||104 mm||79 mm||755 g||920||Y||Jul 2013||1,199||ebay.com|
|10.||Canon 650D||133 mm||100 mm||79 mm||575 g||440||n||Jun 2012||849||ebay.com|
|11.||Canon G1 X||117 mm||81 mm||65 mm||534 g||250||n||Jan 2012||799||ebay.com|
|12.||Canon 1100D||130 mm||100 mm||78 mm||495 g||700||n||Feb 2011||449||ebay.com|
|13.||Canon 500D||129 mm||98 mm||62 mm||520 g||400||n||Mar 2009||799||ebay.com|
|14.||Canon 1000D||126 mm||98 mm||65 mm||502 g||500||n||Jun 2008||449||ebay.com|
|15.||Canon 400D||127 mm||84 mm||65 mm||556 g||370||n||Aug 2006||799||ebay.com|
|16.||Nikon D5000||127 mm||104 mm||80 mm||590 g||510||n||Apr 2009||749||ebay.com|
|17.||Panasonic FZ1000||137 mm||99 mm||131 mm||831 g||360||n||Jun 2014||899||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 obviously take relative prices into account. 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. 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. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels 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 450D features an APS-C sensor and the Canon G3 X an one-inch sensor. The sensor area in the G3X is 65 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 2.7. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Technology-wise, the G3X uses a more advanced image processing engine (DIGIC 6) than the 450D (DIGIC 3), with benefits for noise reduction, color accuracy, and processing speed.
Despite having a smaller sensor, the G3X offers a higher resolution of 20 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 2.41μm versus 5.19μm for the 450D). However, it should be noted that the G3X is much more recent (by 7 years and 4 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 Canon G3 X implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the G3X for good quality output (200 dots per inch) amounts to 27.4 x 18.2 inches or 69.5 x 46.3 cm, for very good quality (250 dpi) 21.9 x 14.6 inches or 55.6 x 37.1 cm, and for excellent quality (300 dpi) 18.2 x 12.2 inches or 46.3 x 30.9 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 Canon PowerShot G3 X are ISO 125 to ISO 12800, with the possibility to increase the ISO range to 125-25600.
In terms of underlying technology, the 450D is build around a CMOS sensor, while the G3X uses a BSI-CMOS imager. 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 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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
|2.||Canon G3 X||1-inch||20.0||5472||3648||1080/60p||21.4||12.3||521||63|
|6.||Canon G9 X||1-inch||20.0||5472||3648||1080/60p||21.5||12.3||495||63|
|7.||Canon G1 X Mark II||1.5-inch||13.0||4160||3120||1080/30p||21.5||10.8||581||58|
|8.||Canon G7 X||1-inch||20.0||5472||3648||1080/60p||23.0||12.7||556||71|
|11.||Canon G1 X||1.5-inch||14.2||4352||3264||1080/24p||21.7||10.8||644||60|
Many modern cameras cannot only take still pictures, but also record videos. The G3X indeed provides for movie recording, while the 450D does not. The highest resolution format that the G3X can use is 1080/60p.
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the 450D has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the G3X relies on live view and the rear LCD for framing. That said, the G3X can be equipped with an optional viewfinder – the EVF-DC1. The adjacent table lists some of the other core features of the Canon 450D and Canon G3 X along with similar information for a selection of comparators.
|1.||Canon 450D||optical||n||3.0 / 230||fixed||n||1/4000s||3.5/s||Y||n|
|2.||Canon G3 X||optional||n||3.2 / 1620||tilting||Y||1/2000s||5.9/s||Y||Y|
|3.||Canon 80D||optical||Y||3.0 / 1040||swivel||Y||1/8000s||7.0/s||Y||n|
|4.||Canon 750D||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|5.||Canon 760D||optical||Y||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|6.||Canon G9 X||none||n||3.0 / 1040||fixed||Y||1/2000s||6.0/s||Y||Y|
|7.||Canon G1 X Mark II||optional||n||3.0 / 1040||tilting||Y||1/4000s||5.2/s||Y||Y|
|8.||Canon G7 X||none||n||3.0 / 1040||tilting||Y||1/2000s||6.5/s||Y||Y|
|9.||Canon 70D||optical||Y||3.0 / 1040||swivel||Y||1/8000s||7.0/s||Y||n|
|10.||Canon 650D||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|11.||Canon G1 X||optical||n||3.0 / 922||swivel||n||1/4000s||1.9/s||Y||Y|
|12.||Canon 1100D||optical||n||2.7 / 230||fixed||n||1/4000s||3.0/s||Y||n|
|13.||Canon 500D||optical||n||3.0 / 920||fixed||n||1/4000s||3.4/s||Y||n|
|14.||Canon 1000D||optical||n||2.5 / 230||fixed||n||1/4000s||3.0/s||Y||n|
|15.||Canon 400D||optical||n||2.5 / 230||fixed||n||1/4000s||3.0/s||Y||n|
|16.||Nikon D5000||optical||n||2.7 / 230||full-flex||n||1/4000s||4.0/s||Y||n|
|17.||Panasonic FZ1000||2359||n||3.0 / 921||swivel||n||1/4000s||12.0/s||Y||Y|
|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 G3X has a touchscreen, while the 450D has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.The G3X 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 G3X uses SDXC cards. The G3X supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the 450D cannot take advantage of Ultra High Speed SD 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 Canon PowerShot G3 X 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.||Canon G3 X||Y||stereo / mono||Y||Y||mini||2.0||Y||Y||-|
|3.||Canon 80D||Y||stereo / mono||Y||Y||mini||2.0||Y||Y||-|
|4.||Canon 750D||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|5.||Canon 760D||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|6.||Canon G9 X||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|7.||Canon G1 X Mark II||Y||stereo / mono||-||-||mini||2.0||Y||Y||-|
|8.||Canon G7 X||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|9.||Canon 70D||Y||stereo / mono||Y||-||mini||2.0||Y||-||-|
|10.||Canon 650D||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|11.||Canon G1 X||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|12.||Canon 1100D||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|13.||Canon 500D||Y||mono / mono||-||-||mini||2.0||-||-||-|
|14.||Canon 1000D||Y||- / -||-||-||-||2.0||-||-||-|
|15.||Canon 400D||Y||- / -||-||-||-||2.0||-||-||-|
|16.||Nikon D5000||Y||mono / mono||-||-||mini||2.0||-||-||-|
|17.||Panasonic FZ1000||Y||stereo / mono||Y||-||micro||2.0||Y||Y||-|
It is notable that the G3X offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the 450D does not provide wifi capability.
The G3X is a recent model that features in the current product line-up of Canon. In contrast, the 450D has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the 450D was succeeded by the Canon 500D. Further information on the features and operation of the 450D and G3X can be found, respectively, in the Canon 450D Manual (free pdf) or the online Canon G3 X Manual.
So how do things add up? Which of the two cameras – the Canon 450D or the Canon G3 X – 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 450D:
- Better low-light sensitivity: Requires less light for good images (0.4 stops ISO advantage).
- Easier framing: Has an optical viewfinder for image composition and settings control.
- Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/2000s) to freeze action.
- More flexible: Can take a variety of interchangeable lenses, including specialty optics.
- Longer lasting: Can take more shots (500 versus 300) on a single battery charge.
- More heavily discounted: Has been available for much longer (launched in January 2008).
Advantages of the Canon PowerShot G3 X:
- More detail: Has more megapixels (20 vs 12.2MP), which boosts linear resolution by 28%.
- More dynamic range: Captures a broader range of light and dark details (1.5 EV of extra DR).
- Better jpgs: Has a more modern image processing engine (DIGIC 6 vs DIGIC 3).
- Broader imaging potential: Can capture not only stills but also 1080/60p video.
- Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (1620k vs 230k dots).
- More flexible LCD: Has a tilting screen for odd-angle shots in 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 (5.9 vs 3.5 flaps/sec) to capture the decisive moment.
- Ready to shoot: Comes with an integrated lens, while the 450D requires a separate lens.
- More compact: Is smaller (123x77mm vs 129x98mm) and will fit more readily into a bag.
- 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.
- 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.
- Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
- More modern: Reflects 7 years and 4 months of technical progress since the 450D launch.
If the count of individual advantages (bullet points above) is taken as a guide, the G3X is the clear winner of the contest (18 : 6 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 450D and the Canon G3 X place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Superzoom 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 450D or the G3X. 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.||Canon G3 X||3.5/5||+||..||..||4.5/5||4/5||Jun 2015||999||amazon.com|
|3.||Canon 80D||4/5||+ +||4.5/5||84/100||4.5/5||4.5/5||Feb 2016||1,199||ebay.com|
|4.||Canon 750D||5/5||..||..||75/100||4.5/5||4.5/5||Feb 2015||749||ebay.com|
|5.||Canon 760D||5/5||+||..||77/100||4.5/5||4.5/5||Feb 2015||649||ebay.com|
|6.||Canon G9 X||3.5/5||+ +||..||..||4.5/5||4.5/5||Oct 2015||529||ebay.com|
|7.||Canon G1 X Mark II||3/5||+||..||77/100||4/5||4.5/5||Feb 2014||799||ebay.com|
|8.||Canon G7 X||4/5||+ +||..||77/100||4.5/5||4.5/5||Sep 2014||699||ebay.com|
|9.||Canon 70D||5/5||+ +||..||83/100||4.5/5||5/5||Jul 2013||1,199||ebay.com|
|10.||Canon 650D||4/5||+ +||..||77/100||4.5/5||4.5/5||Jun 2012||849||ebay.com|
|11.||Canon G1 X||5/5||+||..||76/100||4/5||4.5/5||Jan 2012||799||ebay.com|
|12.||Canon 1100D||..||80/100||..||69/100||4/5||4.5/5||Feb 2011||449||ebay.com|
|13.||Canon 500D||..||+ +||..||74/100||4.5/5||4.5/5||Mar 2009||799||ebay.com|
|14.||Canon 1000D||..||82/100||..||+ +||3.5/5||4.5/5||Jun 2008||449||ebay.com|
|15.||Canon 400D||..||+ +||..||+ +||o||4/5||Aug 2006||799||ebay.com|
|16.||Nikon D5000||..||+ +||..||75/100||4/5||4.5/5||Apr 2009||749||ebay.com|
|17.||Panasonic FZ1000||4/5||+ +||..||82/100||4.5/5||4.5/5||Jun 2014||899||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, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.
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.
Specifications: Canon 450D vs Canon G3 X
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||Canon G3 X|
|Camera Type||Digital single lens reflex||Fixed lens compact camera|
|Camera Lens||Canon EF mount lenses||24-600mm f/2.8-5.6|
|Launch Date||January 2008||June 2015|
|Launch Price||USD 799||USD 999|
|Sensor Specs||Canon 450D||Canon G3 X|
|Sensor Format||APS-C Sensor||1" Sensor|
|Sensor Size||22.2 x 14.8 mm||13.2 x 8.8 mm|
|Sensor Area||328.56 mm2||116.16 mm2|
|Sensor Diagonal||26.7 mm||15.9 mm|
|Sensor Resolution||12.2 Megapixels||20 Megapixels|
|Image Resolution||4272 x 2848 pixels||5472 x 3648 pixels|
|Pixel Pitch||5.19 μm||2.41 μm|
|Pixel Density||3.70 MP/cm2||17.18 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||no Video||1080/60p Video|
|ISO Setting||100 - 1,600 ISO||125 - 12,800 ISO|
|ISO Boost||no Enhancement||125 - 25,600 ISO|
|Image Processor||DIGIC 3||DIGIC 6|
|DXO Sensor Quality (score)||61||63|
|DXO Color Depth (bits)||21.9||21.4|
|DXO Dynamic Range (EV)||10.8||12.3|
|DXO Low Light (ISO)||692||521|
|Screen Specs||Canon 450D||Canon G3 X|
|Viewfinder Type||Optical viewfinder||Viewfinder optional|
|Viewfinder Field of View||95%|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.2inch|
|LCD Resolution||230k dots||1620k dots|
|LCD Attachment||Fixed screen||Tilting screen|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Canon 450D||Canon G3 X|
|Focus System||Phase-detect AF||Contrast-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/2000s|
|Continuous Shooting||3.5 shutter flaps/s||5.9 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||UHS-I|
|Connectivity Specs||Canon 450D||Canon G3 X|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||mini HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Headphone Socket||no Headphone port||Headphone port|
|Wifi Support||no Wifi||Wifi built-in|
|Near-Field Communication||no NFC||NFC built-in|
|Body Specs||Canon 450D||Canon G3 X|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||500 shots per charge||300 shots per charge|
129 x 98 x 62 mm
(5.1 x 3.9 x 2.4 in)
123 x 77 x 105 mm
(4.8 x 3.0 x 4.1 in)
|Camera Weight||524 g (18.5 oz)||733 g (25.9 oz)|
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