Canon G1 X vs XTi
The Canon PowerShot G1 X and the Canon EOS Rebel XTi (labelled Canon 400D in some countries) are two digital cameras that were officially introduced, respectively, in January 2012 and August 2006. The G1X is a fixed lens compact, while the XTi is a DSLR. The cameras are based on an 1.5-inch (G1X) and an APS-C (XTi) sensor. The G1X has a resolution of 14.2 megapixels, whereas the XTi provides 10.1 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 PowerShot G1 X and the Canon EOS Rebel XTi? 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 G1 X and the Canon XTi are illustrated in the side-by-side display below. 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 XTi is notably larger (13 percent) than the Canon G1 X. In this context, it is worth noting that neither the G1X nor the XTi are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G1X has a lens built in, whereas the XTi 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 XTi and their specifications in the Canon EF Lens Catalog.
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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 G1 X||117 mm||81 mm||65 mm||534 g||250||n||Jan 2012||799|
|2.||Canon XTi||127 mm||84 mm||65 mm||556 g||370||n||Aug 2006||799|
|3.||Canon T6i||132 mm||101 mm||78 mm||555 g||440||n||Feb 2015||749|
|4.||Canon T6s||132 mm||101 mm||78 mm||565 g||440||n||Feb 2015||649|
|5.||Canon G1 X Mark II||116 mm||74 mm||66 mm||553 g||240||n||Feb 2014||799|
|6.||Canon G16||109 mm||76 mm||40 mm||356 g||360||n||Aug 2013||549|
|7.||Canon S120||100 mm||59 mm||29 mm||217 g||230||n||Aug 2013||449|
|8.||Canon SX50||123 mm||87 mm||106 mm||595 g||315||n||Sep 2012||429|
|9.||Canon T4i||133 mm||100 mm||79 mm||575 g||440||n||Jun 2012||849|
|10.||Canon T3||130 mm||100 mm||78 mm||495 g||700||n||Feb 2011||449|
|11.||Canon T1i||129 mm||98 mm||62 mm||520 g||400||n||Mar 2009||799|
|12.||Canon XSi||129 mm||98 mm||62 mm||524 g||500||n||Jan 2008||799|
|13.||Canon XT||127 mm||94 mm||64 mm||540 g||400||n||Feb 2005||899|
|14.||Canon Rebel||142 mm||99 mm||72 mm||649 g||400||n||Aug 2003||899|
|15.||Leica V-LUX 4||125 mm||87 mm||110 mm||588 g||540||n||Sep 2012||949|
|16.||Leica V-LUX 3||124 mm||81 mm||95 mm||540 g||410||n||Dec 2011||949|
|Notes: 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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. 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.
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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon G1 X features an 1.5-inch sensor and the Canon XTi an APS-C sensor. The sensor area in the XTi is 26 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.85 and 1.6. The sensor in the G1X has a native 4:3 aspect ratio, while the one in the XTi offers a 3:2 aspect.
In terms of chip-set technology, the G1X uses a more advanced image processing engine (DIGIC 5) than the XTi (DIGIC II), with benefits for noise reduction, color accuracy, and processing speed.
Despite having a smaller sensor, the Canon G1 X offers a higher resolution of 14.2 megapixels, compared with 10.1 MP of the Canon XTi. 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 4.30μm versus 5.71μm for the XTi). However, it should be noted that the G1X is much more recent (by 5 years and 4 months) than the XTi, 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 G1 X implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the G1X for good quality output (200 dots per inch) amounts to 21.8 x 16.3 inches or 55.3 x 41.5 cm, for very good quality (250 dpi) 17.4 x 13.1 inches or 44.2 x 33.2 cm, and for excellent quality (300 dpi) 14.5 x 10.9 inches or 36.8 x 27.6 cm. The corresponding values for the Canon XTi are 19.4 x 13 inches or 49.4 x 32.9 cm for good quality, 15.6 x 10.4 inches or 39.5 x 26.3 cm for very good quality, and 13 x 8.6 inches or 32.9 x 21.9 cm for excellent quality prints.
The Canon PowerShot G1 X has a native sensitivity range from ISO 100 to ISO 12800. The corresponding ISO settings for the Canon EOS Rebel XTi are ISO 100 to ISO 1600 (no boost).
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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. The Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
| DXO |
|1.||Canon G1 X||1.5-inch||14.2||4352||3264||1080/24p||21.7||10.8||644||60|
|5.||Canon G1 X Mark II||1.5-inch||13.0||4160||3120||1080/30p||21.5||10.8||581||58|
|15.||Leica V-LUX 4||1/2.3||12.0||4000||3000||1080/60p||..||..||..||..|
|16.||Leica V-LUX 3||1/2.3||12.0||4000||3000||1080/60p||..||..||..||..|
Many modern cameras are not only capable of taking still images, but can also record movies. The G1X indeed provides movie recording capabilities, while the XTi does not. The highest resolution format that the G1X can use is 1080/24p.
Apart from body and sensor, cameras can and do differ across a variety of features. The G1X and the XTi 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 adjacent table lists some of the other core features of the Canon G1 X and Canon XTi along with similar information for a selection of comparators.
|1.||Canon G1 X||optical||n||3.0||922||Swivel||n||1/4000s||1.9||Y||Y|
|5.||Canon G1 X Mark II||optional||n||3.0||1040||tilting||Y||1/4000s||5.2||Y||Y|
|15.||Leica V-LUX 4||1312||n||3.0||460||swivel||n||1/4000s||12.0||Y||Y|
|16.||Leica V-LUX 3||202||n||3.0||460||swivel||n||1/2000s||12.0||Y||Y|
The G1X writes its imaging data to SDXC cards, while the XTi uses Compact Flash 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 PowerShot G1 X and Canon EOS Rebel XTi and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|1.||Canon G1 X||Y||stereo||mono||-||-||mini||2.0||-||-||-|
|5.||Canon G1 X Mark II||Y||stereo||mono||-||-||mini||2.0||Y||Y||-|
|15.||Leica V-LUX 4||Y||stereo||mono||Y||-||mini||2.0||-||-||-|
|16.||Leica V-LUX 3||Y||stereo||-||-||-||mini||2.0||-||-||-|
Both the G1X and the XTi have been discontinued, but can regularly be found used on eBay. The XTi was replaced by the Canon Xsi, while the G1X was followed by the Canon G1X Mark II. 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 what is the bottom line? Is the Canon G1 X better than the Canon XTi or vice versa? The listing below highlights the relative strengths of the two models.
Advantages of the Canon PowerShot G1 X:
- More detail: Offers more megapixels (14.2 vs 10.1MP) with a 16% higher linear resolution.
- Better jpgs: Has a more modern image processing engine (DIGIC 5 vs DIGIC II).
- Broader imaging potential: Can record not only still images but also 1080/24p movies.
- Larger screen: Has a bigger rear LCD (3.0" vs 2.5") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (922k vs 230k dots).
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Ready to shoot: Comes with a built-in lens, while the XTi requires a separate lens.
- More compact: Is smaller (117x81mm vs 127x84mm) and thus needs less room in the bag.
- Less heavy: Is lighter even though it comes with a built-in lens (unlike the XTi).
- Sharper images: Has hand-shake reducing image stabilization built-in.
- More modern: Reflects 5 years and 4 months of technical progress since the XTi launch.
Arguments in favor of the Canon EOS Rebel XTi:
- Faster burst: Shoots at higher frequency (3 vs 1.9 flaps/sec) to capture the decisive moment.
- More flexible: Makes it possible to change lenses and thus to use specialty optics.
- Longer lasting: Gets more shots (370 versus 250) out of a single battery charge.
- More heavily discounted: Has been around for much longer (launched in August 2006).
If the count of relative strengths (bullet points above) is taken as a measure, the G1X is the clear winner of the match-up (11 : 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 G1 X and the Canon XTi place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best DSLR 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 G1X or the XTi. 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], 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 G1 X||5/5||+||76/100||4/5||4.5/5||Jan 2012||799|
|2.||Canon XTi||..||+ +||+ +||o||4/5||Aug 2006||799|
|3.||Canon T6i||5/5||..||75/100||4.5/5||4.5/5||Feb 2015||749|
|4.||Canon T6s||5/5||+||77/100||4.5/5||4.5/5||Feb 2015||649|
|5.||Canon G1 X Mark II||3/5||+||77/100||4/5||4.5/5||Feb 2014||799|
|6.||Canon G16||4/5||+||..||4.5/5||4.5/5||Aug 2013||549|
|7.||Canon S120||..||+ +||..||4.5/5||4.5/5||Aug 2013||449|
|8.||Canon SX50||3/5||+ +||72/100||4.5/5||4.5/5||Sep 2012||429|
|9.||Canon T4i||4/5||+ +||77/100||4.5/5||4.5/5||Jun 2012||849|
|10.||Canon T3||..||80/100||69/100||4/5||4.5/5||Feb 2011||449|
|11.||Canon T1i||..||+ +||74/100||4.5/5||4.5/5||Mar 2009||799|
|12.||Canon XSi||..||+ +||+ +||4/5||4.5/5||Jan 2008||799|
|13.||Canon XT||..||80/100||+ +||o||..||Feb 2005||899|
|14.||Canon Rebel||..||..||+ +||..||..||Aug 2003||899|
|15.||Leica V-LUX 4||..||..||..||..||..||Sep 2012||949|
|16.||Leica V-LUX 3||..||..||..||..||..||Dec 2011||949|
|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. 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. 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. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
Specifications: Canon G1 X vs Canon XTi
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 G1 X||Canon XTi|
|Camera Type||Fixed lens compact camera||Digital single lens reflex|
|Camera Lens||28-112mm f/2.8-5.8||Canon EF mount lenses|
|Launch Date||January 2012||August 2006|
|Launch Price||USD 799||USD 799|
|Sensor Specs||Canon G1 X||Canon XTi|
|Sensor Format||1.5" Sensor||APS-C Sensor|
|Sensor Size||18.7 x 14.0 mm||22.2 x 14.8 mm|
|Sensor Area||261.8 mm2||328.56 mm2|
|Sensor Diagonal||23.4 mm||26.7 mm|
|Sensor Resolution||14.2 Megapixels||10.1 Megapixels|
|Image Resolution||4352 x 3264 pixels||3888 x 2592 pixels|
|Pixel Pitch||4.30 μm||5.71 μm|
|Pixel Density||5.43 MP/cm2||3.07 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/24p Video||no Video|
|ISO Setting||100 - 12,800 ISO||100 - 1,600 ISO|
|Image Processor||DIGIC 5||DIGIC II|
|DXO Sensor Quality (score)||60||62|
|DXO Color Depth (bits)||21.7||22.1|
|DXO Dynamic Range (EV)||10.8||11.0|
|DXO Low Light (ISO)||644||664|
|Screen Specs||Canon G1 X||Canon XTi|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||74%||95%|
|LCD Framing||Live View|
|Rear LCD Size||3.0inch||2.5inch|
|LCD Resolution||922k dots||230k dots|
|LCD Attachment||Fixed screen|
|Shooting Specs||Canon G1 X||Canon XTi|
|Focus System||Contrast-detect AF||Phase-detect AF|
|Continuous Shooting||1.9 shutter flaps/s||3 shutter flaps/s|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||SDXC cards||CF cards|
|Second Storage Option||Single card slot||Single card slot|
|Connectivity Specs||Canon G1 X||Canon XTi|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||no HDMI|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Canon G1 X||Canon XTi|
|Battery Life (CIPA)||250 shots per charge||370 shots per charge|
117 x 81 x 65 mm
(4.6 x 3.2 x 2.6 in)
127 x 84 x 65 mm
(5.0 x 3.3 x 2.6 in)
|Camera Weight||534 g (18.8 oz)||556 g (19.6 oz)|
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