Canon G16 vs XTi
The Canon PowerShot G16 and the Canon EOS Rebel XTi (labelled Canon 400D in some countries) are two digital cameras that were announced, respectively, in August 2013 and August 2006. The G16 is a fixed lens compact, while the XTi is a DSLR. The cameras are based on a 1/1.7-inch (G16) and an APS-C (XTi) sensor. The G16 has a resolution of 12 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 G16 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 G16 and the Canon XTi 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 XTi is notably larger (29 percent) than the Canon G16. In this context, it is worth noting that neither the G16 nor the XTi are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G16 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 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 G16||109 mm||76 mm||40 mm||356 g||360||n||Aug 2013||549|
|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 100D||117 mm||91 mm||69 mm||407 g||380||n||Mar 2013||549|
|7.||Canon G1 X||117 mm||81 mm||65 mm||534 g||250||n||Jan 2012||799|
|8.||Canon G15||107 mm||76 mm||40 mm||352 g||350||n||Sep 2012||499|
|9.||Canon M||109 mm||66 mm||32 mm||298 g||230||n||Jul 2012||599|
|10.||Canon G12||112 mm||76 mm||48 mm||401 g||370||n||Sep 2010||499|
|11.||Canon XSi||129 mm||98 mm||62 mm||524 g||500||n||Jan 2008||799|
|12.||Canon XT||127 mm||94 mm||64 mm||540 g||400||n||Feb 2005||899|
|13.||Canon Rebel||142 mm||99 mm||72 mm||649 g||400||n||Aug 2003||899|
|14.||Fujifilm X30||119 mm||72 mm||60 mm||423 g||470||n||Aug 2014||599|
|15.||Fujifilm X20||117 mm||70 mm||57 mm||353 g||270||n||Jan 2013||599|
|16.||Nikon P7800||119 mm||78 mm||50 mm||399 g||350||n||Sep 2013||549|
|17.||Panasonic LX7||111 mm||68 mm||46 mm||298 g||330||n||Jul 2012||499|
|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 G16 was launched at a lower price than the XTi, despite having a lens built in. 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 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 G16 features a 1/1.7-inch sensor and the Canon XTi an APS-C sensor. The sensor area in the XTi is 683 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 4.65 and 1.6. The sensor in the G16 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 G16 uses a more advanced image processing engine (DIGIC 6) than the XTi (DIGIC II), with benefits for noise reduction, color accuracy, and processing speed.
Despite having a smaller sensor, the Canon G16 offers a higher resolution of 12 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 1.87μm versus 5.71μm for the XTi). However, it should be noted that the G16 is much more recent (by 7 years) 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 G16 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the G16 for good quality output (200 dots per inch) amounts to 20 x 15 inches or 50.8 x 38.1 cm, for very good quality (250 dpi) 16 x 12 inches or 40.6 x 30.5 cm, and for excellent quality (300 dpi) 13.3 x 10 inches or 33.9 x 25.4 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 G16 has a native sensitivity range from ISO 80 to ISO 12800. The corresponding ISO settings for the Canon EOS Rebel XTi are ISO 100 to ISO 1600 (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"). Of the two cameras under consideration, the XTi has a markedly higher DXO score than the G16 (overall score 8 points higher), which will translate into better image quality. The advantage is based on 1.1 bits higher color depth, 0.7 EV of lower dynamic range, and 1.5 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.
|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|
|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. The G16 indeed provides movie recording capabilities, while the XTi does not. The highest resolution format that the G16 can use is 1080/60p.
Apart from body and sensor, cameras can and do differ across a variety of features. The G16 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 G16 and Canon XTi along with similar information for a selection of comparators.
|1.||Canon G16||optical||n||3.0 / 922||fixed||n||1/4000s||2.2||Y||Y|
|2.||Canon XTi||optical||n||2.5 / 230||fixed||n||1/4000s||3.0||Y||n|
|3.||Canon T6i||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0||Y||n|
|4.||Canon T6s||optical||Y||3.0 / 1040||swivel||Y||1/4000s||5.0||Y||n|
|5.||Canon G1 X Mark II||optional||n||3.0 / 1040||tilting||Y||1/4000s||5.2||Y||Y|
|6.||Canon 100D||optical||n||3.0 / 1040||fixed||Y||1/4000s||4.9||Y||n|
|7.||Canon G1 X||optical||n||3.0 / 922||swivel||n||1/4000s||1.9||Y||Y|
|8.||Canon G15||optical||n||3.0 / 922||fixed||n||1/4000s||2.1||Y||Y|
|9.||Canon M||none||n||3.0 / 1040||fixed||Y||1/4000s||4.3||n||n|
|10.||Canon G12||optical||n||2.8 / 461||swivel||n||1/4000s||1.1||Y||Y|
|11.||Canon XSi||optical||n||3.0 / 230||fixed||n||1/4000s||3.5||Y||n|
|12.||Canon XT||optical||n||1.8 / 115||fixed||n||1/4000s||3.0||Y||n|
|13.||Canon Rebel||optical||n||1.8 / 118||fixed||n||1/4000s||2.5||Y||n|
|14.||Fujifilm X30||2360||n||3.0 / 920||tilting||n||1/4000s||12.0||Y||Y|
|15.||Fujifilm X20||optical||n||2.8 / 460||fixed||n||1/4000s||12.0||Y||Y|
|16.||Nikon P7800||921||n||3.0 / 921||swivel||n||1/4000s||8.0||Y||Y|
|17.||Panasonic LX7||optional||n||3.0 / 920||fixed||n||1/4000s||11.0||Y||Y|
The Canon G16 has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.
The G16 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 G16 and Canon EOS Rebel XTi and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon G16||Y||stereo / mono||-||-||mini||2.0||Y||-||-|
|2.||Canon XTi||Y||- / -||-||-||-||2.0||-||-||-|
|3.||Canon T6i||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|4.||Canon T6s||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 100D||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|7.||Canon G1 X||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|8.||Canon G15||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|9.||Canon M||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|10.||Canon G12||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|11.||Canon XSi||Y||- / -||-||-||mini||2.0||-||-||-|
|12.||Canon XT||Y||- / -||-||-||-||2.0||-||-||-|
|13.||Canon Rebel||Y||- / -||-||-||-||1.1||-||-||-|
|14.||Fujifilm X30||Y||stereo / mono||-||-||micro||2.0||Y||-||-|
|15.||Fujifilm X20||Y||stereo / mono||-||-||micro||2.0||-||-||-|
|16.||Nikon P7800||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|17.||Panasonic LX7||Y||stereo / mono||-||-||mini||2.0||-||-||-|
It is notable that the G16 offers wifi support, while the XTi does not. Wifi can be a very convenient means to transfer image data to an off-camera location.
The G16 is a recent model that features in the current product line-up of Canon. In contrast, the XTi has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the XTi was succeeded by the Canon Xsi. 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 conclusions can be drawn? Is the Canon G16 better than the Canon XTi or vice versa? The listing below highlights the relative strengths of the two models.
Advantages of the Canon PowerShot G16:
- More detail: Offers more megapixels (12 vs 10.1MP) with a 7% higher linear resolution.
- More dynamic range: Captures a larger spectrum of light and dark details (0.7 EV of extra DR).
- Better jpgs: Has a more modern image processing engine (DIGIC 6 vs DIGIC II).
- Broader imaging potential: Can record not only still images but also 1080/60p 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).
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Ready to shoot: Comes with a built-in lens, while the XTi requires a separate lens.
- More compact: Is smaller (109x76mm 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.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More modern: Reflects 7 years of technical progress since the XTi launch.
Arguments in favor of the Canon EOS Rebel XTi:
- Better image quality: Scores markedly higher (8 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (1.1 bits more color depth).
- Better low-light sensitivity: Can shoot in dim conditions (1.5 stops ISO advantage).
- Faster burst: Shoots at higher frequency (3 vs 2.2 flaps/sec) to capture the decisive moment.
- More flexible: Makes it possible to change lenses and thus to use specialty optics.
- More heavily discounted: Has been around for much longer (launched in August 2006).
If the number of relative strengths (bullet points above) is taken as a guide, the G16 is the clear winner of the match-up (14 : 6 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 G16 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 comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains incomplete and does no justice, for example, to the way the G16 or the XTi 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 (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 G16||4/5||+||..||..||4.5/5||4.5/5||Aug 2013||549|
|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 100D||4/5||+||..||78/100||4/5||4/5||Mar 2013||549|
|7.||Canon G1 X||5/5||+||..||76/100||4/5||4.5/5||Jan 2012||799|
|8.||Canon G15||4/5||+||..||76/100||4.5/5||4.5/5||Sep 2012||499|
|9.||Canon M||3/5||+||..||..||4/5||4/5||Jul 2012||599|
|10.||Canon G12||4/5||+||..||73/100||4.5/5||4.5/5||Sep 2010||499|
|11.||Canon XSi||..||+ +||..||+ +||4/5||4.5/5||Jan 2008||799|
|12.||Canon XT||..||80/100||..||+ +||o||..||Feb 2005||899|
|13.||Canon Rebel||..||..||..||+ +||..||..||Aug 2003||899|
|14.||Fujifilm X30||4/5||..||..||76/100||4.5/5||4.5/5||Aug 2014||599|
|15.||Fujifilm X20||4/5||+ +||..||77/100||4.5/5||5/5||Jan 2013||599|
|16.||Nikon P7800||3/5||..||..||..||4/5||4.5/5||Sep 2013||549|
|17.||Panasonic LX7||3/5||+ +||..||75/100||4/5||4.5/5||Jul 2012||499|
|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? 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 G16 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 G16||Canon XTi|
|Camera Type||Fixed lens compact camera||Digital single lens reflex|
|Camera Lens||28-140mm f/1.8-2.8||Canon EF mount lenses|
|Launch Date||August 2013||August 2006|
|Launch Price||USD 549||USD 799|
|Sensor Specs||Canon G16||Canon XTi|
|Sensor Format||1/1.7" Sensor||APS-C Sensor|
|Sensor Size||7.44 x 5.58 mm||22.2 x 14.8 mm|
|Sensor Area||41.5152 mm2||328.56 mm2|
|Sensor Diagonal||9.3 mm||26.7 mm|
|Sensor Resolution||12 Megapixels||10.1 Megapixels|
|Image Resolution||4000 x 3000 pixels||3888 x 2592 pixels|
|Pixel Pitch||1.87 μm||5.71 μm|
|Pixel Density||28.91 MP/cm2||3.07 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/60p Video||no Video|
|ISO Setting||80 - 12,800 ISO||100 - 1,600 ISO|
|Image Processor||DIGIC 6||DIGIC II|
|DXO Sensor Quality (score)||54||62|
|DXO Color Depth (bits)||21.0||22.1|
|DXO Dynamic Range (EV)||11.7||11.0|
|DXO Low Light (ISO)||230||664|
|Screen Specs||Canon G16||Canon XTi|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||80%||95%|
|LCD Framing||Live View|
|Rear LCD Size||3.0inch||2.5inch|
|LCD Resolution||922k dots||230k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Canon G16||Canon XTi|
|Focus System||Contrast-detect AF||Phase-detect AF|
|Manual Focusing Aid||Focus Peaking||no Peaking Feature|
|Continuous Shooting||2.2 shutter flaps/s||3 shutter flaps/s|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|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 G16||Canon XTi|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||no HDMI|
|Wifi Support||Wifi built-in||no Wifi|
|Body Specs||Canon G16||Canon XTi|
|Battery Life (CIPA)||360 shots per charge||370 shots per charge|
109 x 76 x 40 mm
(4.3 x 3.0 x 1.6 in)
127 x 84 x 65 mm
(5.0 x 3.3 x 2.6 in)
|Camera Weight||356 g (12.6 oz)||556 g (19.6 oz)|
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