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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.

Headline Specifications
Canon G16
versus
Canon XTi
Canon G16   Canon XTi
Fixed lens compact camera Digital single lens reflex
28-140mm f/1.8-2.8 Canon EF mount lenses
12 MP, 1/1.7" Sensor 10.1 MP, APS-C Sensor
1080/60p Video no Video
ISO 80-12,800 ISO 100-1,600
Optical viewfinder Optical viewfinder
3.0 LCD, 922k dots 2.5 LCD, 230k dots
Fixed screen (not touch-sensitive) Fixed screen (not touch-sensitive)
2.2 shutter flaps per second 3 shutter flaps per second
360 shots per battery charge370 shots per battery charge
109 x 76 x 40 mm, 356 g 127 x 84 x 65 mm, 556 g

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.

Body comparison

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.

Size Canon G16 vs Canon XTi
Compare G16 versus XTi top
Comparison G16 or XTi rear

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.

Concerning battery life, the G16 gets 360 shots out of its NB-10L battery, while the XTi can take 370 images on a single charge of its NB-2LH power pack.

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.

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Body Specifications
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon G16 109 mm 76 mm 40 mm 356 g 360 n Aug 2013 549 i
2.
 
Canon XTi 127 mm 84 mm 65 mm 556 g 370 n Aug 2006 799i
3.
 
Canon T6i 132 mm 101 mm 78 mm 555 g 440 n Feb 2015 749i
4.
 
Canon T6s 132 mm 101 mm 78 mm 565 g 440 n Feb 2015 649i
5.
 
Canon G1 X Mark II 116 mm 74 mm 66 mm 553 g 240 n Feb 2014 799i
6.
 
Canon 100D 117 mm 91 mm 69 mm 407 g 380 n Mar 2013 549i
7.
 
Canon G1 X 117 mm 81 mm 65 mm 534 g 250 n Jan 2012 799i
8.
 
Canon G15 107 mm 76 mm 40 mm 352 g 350 n Sep 2012 499i
9.
 
Canon M 109 mm 66 mm 32 mm 298 g 230 n Jul 2012 599i
10.
 
Canon G12 112 mm 76 mm 48 mm 401 g 370 n Sep 2010 499i
11.
 
Canon XSi 129 mm 98 mm 62 mm 524 g 500 n Jan 2008 799i
12.
 
Canon XT 127 mm 94 mm 64 mm 540 g 400 n Feb 2005 899i
13.
 
Canon Rebel 142 mm 99 mm 72 mm 649 g 400 n Aug 2003 899i
14.
 
Fujifilm X30 119 mm 72 mm 60 mm 423 g 470 n Aug 2014 599 i
15.
 
Fujifilm X20 117 mm 70 mm 57 mm 353 g 270 n Jan 2013 599i
16.
 
Nikon P7800 119 mm 78 mm 50 mm 399 g 350 n Sep 2013 549i
17.
 
Panasonic LX7 111 mm 68 mm 46 mm 298 g 330 n Jul 2012 499i
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.

Sensor comparison

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.

Canon G16 and Canon XTi sensor measures

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).

G16 versus XTi MP

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.

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Sensor Characteristics
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Canon G16 1/1.7 12.0 4000 30001080/60p21.011.723054
2.
 
Canon XTi APS-C 10.1 3888 2592none22.111.066462
3.
 
Canon T6i APS-C 24.0 6000 40001080/30p22.712.091971
4.
 
Canon T6s APS-C 24.0 6000 40001080/30p22.612.091570
5.
 
Canon G1 X Mark II 1.5-inch 13.0 4160 31201080/30p21.510.858158
6.
 
Canon 100D APS-C 17.9 5184 34561080/30p21.811.384363
7.
 
Canon G1 X 1.5-inch 14.2 4352 32641080/24p21.710.864460
8.
 
Canon G15 1/1.7 12.0 4000 30001080/24p19.911.516546
9.
 
Canon M APS-C 17.9 5184 34561080/30p22.111.282765
10.
 
Canon G12 1/1.7 10.0 3648 2736720/24p20.411.216147
11.
 
Canon XSi APS-C 12.2 4272 2848none21.910.869261
12.
 
Canon XT APS-C 8.0 3456 2304none21.810.863760
13.
 
Canon Rebel APS-C 6.3 3072 2048none21.010.854455
14.
 
Fujifilm X30 2/3 12.0 4000 30001080/60p20.411.2-31249
15.
 
Fujifilm X20 2/3 12.0 4000 30001080/60p20.110.9-46246
16.
 
Nikon P7800 1/1.7 12.0 4000 30001080/30p21.211.720054
17.
 
Panasonic LX7 1/1.7 10.0 3648 27361080/60p20.711.714750
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.

Feature comparison

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.

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Core Features
    Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Canon G16optical n3.0 / 922 fixed n 1/4000s 2.2 Y Y
2.
 
Canon XTioptical n2.5 / 230 fixed n 1/4000s 3.0 Y n
3.
 
Canon T6ioptical n3.0 / 1040 swivel Y 1/4000s 5.0 Y n
4.
 
Canon T6soptical Y3.0 / 1040 swivel Y 1/4000s 5.0 Y n
5.
 
Canon G1 X Mark IIoptional n3.0 / 1040 tilting Y 1/4000s 5.2 Y Y
6.
 
Canon 100Doptical n3.0 / 1040 fixed Y 1/4000s 4.9 Y n
7.
 
Canon G1 Xoptical n3.0 / 922 swivel n 1/4000s 1.9 Y Y
8.
 
Canon G15optical n3.0 / 922 fixed n 1/4000s 2.1 Y Y
9.
 
Canon Mnone n3.0 / 1040 fixed Y 1/4000s 4.3 n n
10.
 
Canon G12optical n2.8 / 461 swivel n 1/4000s 1.1 Y Y
11.
 
Canon XSioptical n3.0 / 230 fixed n 1/4000s 3.5 Y n
12.
 
Canon XToptical n1.8 / 115 fixed n 1/4000s 3.0 Y n
13.
 
Canon Rebeloptical n1.8 / 118 fixed n 1/4000s 2.5 Y n
14.
 
Fujifilm X302360 n3.0 / 920 tilting n 1/4000s 12.0 Y Y
15.
 
Fujifilm X20optical n2.8 / 460 fixed n 1/4000s 12.0 Y Y
16.
 
Nikon P7800921 n3.0 / 921 swivel n 1/4000s 8.0 Y Y
17.
 
Panasonic LX7optional n3.0 / 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.

Connectivity comparison

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.

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Input-Output Connections
    Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon G16Ystereo / mono--mini2.0Y--
2.
 
Canon XTiY- / ----2.0---
3.
 
Canon T6iYstereo / monoY-mini2.0YY-
4.
 
Canon T6sYstereo / monoY-mini2.0YY-
5.
 
Canon G1 X Mark IIYstereo / mono--mini2.0YY-
6.
 
Canon 100DYmono / monoY-mini2.0---
7.
 
Canon G1 XYstereo / mono--mini2.0---
8.
 
Canon G15Ystereo / mono--mini2.0---
9.
 
Canon MYstereo / monoY-mini2.0---
10.
 
Canon G12Ystereo / mono--mini2.0---
11.
 
Canon XSiY- / ---mini2.0---
12.
 
Canon XTY- / ----2.0---
13.
 
Canon RebelY- / ----1.1---
14.
 
Fujifilm X30Ystereo / mono--micro2.0Y--
15.
 
Fujifilm X20Ystereo / mono--micro2.0---
16.
 
Nikon P7800Ystereo / monoY-mini2.0---
17.
 
Panasonic LX7Ystereo / mono--mini2.0---

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.

Review summary

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.

G16 14:06 XTi

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.

Expert reviews

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.

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Expert Camera Reviews
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon G164/5+....4.5/54.5/5 Aug 2013 549 i
2.
 
Canon XTi..+ +..+ +o4/5 Aug 2006 799i
3.
 
Canon T6i5/5....75/1004.5/54.5/5 Feb 2015 749i
4.
 
Canon T6s5/5+..77/1004.5/54.5/5 Feb 2015 649i
5.
 
Canon G1 X Mark II3/5+..77/1004/54.5/5 Feb 2014 799i
6.
 
Canon 100D4/5+..78/1004/54/5 Mar 2013 549i
7.
 
Canon G1 X5/5+..76/1004/54.5/5 Jan 2012 799i
8.
 
Canon G154/5+..76/1004.5/54.5/5 Sep 2012 499i
9.
 
Canon M3/5+....4/54/5 Jul 2012 599i
10.
 
Canon G124/5+..73/1004.5/54.5/5 Sep 2010 499i
11.
 
Canon XSi..+ +..+ +4/54.5/5 Jan 2008 799i
12.
 
Canon XT..80/100..+ +o.. Feb 2005 899i
13.
 
Canon Rebel......+ +.... Aug 2003 899i
14.
 
Fujifilm X304/5....76/1004.5/54.5/5 Aug 2014 599 i
15.
 
Fujifilm X204/5+ +..77/1004.5/55/5 Jan 2013 599i
16.
 
Nikon P78003/5......4/54.5/5 Sep 2013 549i
17.
 
Panasonic LX73/5+ +..75/1004/54.5/5 Jul 2012 499i
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.

Canon G16:
Check Amazon price
Canon XTi:
Check Ebay offers

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.

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    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 Specifications
    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 Technology BSI-CMOS CMOS
    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
    Crop Factor 4.65x 1.6x
    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%
    Viewfinder Magnification 0.49x
    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 AidFocus Peakingno Peaking Feature
    Continuous Shooting 2.2 shutter flaps/s 3 shutter flaps/s
    Time-Lapse PhotographyIntervalometer built-inno 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
    External Flash Hotshoe Hotshoe
    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 Type NB-10L NB-2LH
    Battery Life (CIPA)360 shots per charge370 shots per charge
    Body Dimensions 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)

    Did you notice an error on this page? If so, please get in touch, so that we can correct the information.

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