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Canon G1 X Mark III vs XTi

The Canon PowerShot G1 X Mark III and the Canon EOS Rebel XTi (labelled Canon 400D in some countries) are two digital cameras that were revealed to the public, respectively, in October 2017 and August 2006. The G1X Mark III is a fixed lens compact, while the XTi is a DSLR. Both cameras are equipped with an APS-C sensor. The G1X Mark III has a resolution of 24 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 G1 X Mark III VS Canon XTi
Canon G1 X Mark III Canon XTi
Fixed lens compact camera Digital single lens reflex
24-72mm f/2.8-5.6 Canon EF mount lenses
24 MP, APS-C Sensor 10.1 MP, APS-C Sensor
1080/60p Video no Video
ISO 100-25600 ISO 100-1600
Electronic viewfinder (2360k dots) Optical viewfinder
3.0" LCD, 1040k dots 2.5" LCD, 230k dots
Swivel touchscreen Fixed screen (not touch-sensitive)
9 shutter flaps per second 3 shutter flaps per second
Weathersealed bodyNot weather sealed
200 shots per battery charge370 shots per battery charge
115 x 78 x 51 mm, 399 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 G1 X Mark III 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 G1 X Mark III 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 G1 X Mark III vs Canon XTi
Compare G1X Mark III versus XTi top
Comparison G1X Mark III 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 (19 percent) than the Canon G1 X Mark III. It is worth mentioning in this context that the G1X Mark III is splash and dust resistant, while the XTi does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G1X Mark III 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 G1X Mark III gets 200 shots out of its NB-13L 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, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Camera
Model
 
Canon G1 X Mark III» 4.5 in 3.1 in 2.0 in 14.1 oz 200 Y Oct 2017 1,299 iCanon G1 X Mark III
 
Canon XTi« 5.0 in 3.3 in 2.6 in 19.6 oz 370 n Aug 2006 799iCanon XTi
 
Canon 6D Mark II« » 5.7 in 4.4 in 3.0 in 27.0 oz 1200 Y Jun 2017 1,999 iCanon 6D Mark II
 
Canon 80D« » 5.5 in 4.1 in 3.1 in 25.8 oz 960 Y Feb 2016 1,199iCanon 80D
 
Canon SX540« » 4.7 in 3.2 in 3.6 in 15.6 oz 205 n Jan 2016 399 iCanon SX540
 
Canon T6i« » 5.2 in 4.0 in 3.1 in 19.6 oz 440 n Feb 2015 749iCanon T6i
 
Canon T6s« » 5.2 in 4.0 in 3.1 in 19.9 oz 440 n Feb 2015 649iCanon T6s
 
Canon XSi« » 5.1 in 3.9 in 2.4 in 18.5 oz 500 n Jan 2008 799iCanon XSi
 
Canon XT« » 5.0 in 3.7 in 2.5 in 19.0 oz 400 n Feb 2005 899iCanon XT
 
Canon Rebel« » 5.6 in 3.9 in 2.8 in 22.9 oz 400 n Aug 2003 899iCanon Rebel
 
Fujifilm X100V« » 5.0 in 3.0 in 2.1 in 16.9 oz 420 Y Feb 2020 1,399 iFujifilm X100V
 
Fujifilm X-T3« » 5.2 in 3.7 in 2.3 in 19.0 oz 390 Y Sep 2018 1,499 iFujifilm X-T3
 
Fujifilm X100F« » 5.0 in 3.0 in 2.0 in 16.5 oz 390 n Jan 2017 1,299iFujifilm X100F
 
Nikon D7500« » 5.4 in 4.1 in 2.9 in 25.4 oz 950 Y Apr 2017 1,299 iNikon D7500
 
Sony A6300« » 4.7 in 2.6 in 1.9 in 14.3 oz 400 Y Feb 2016 999iSony A6300
 
Sony A6500« » 4.7 in 2.6 in 2.1 in 16.0 oz 350 Y Oct 2016 1,399iSony A6500
 
Sony RX10 III« » 5.2 in 3.7 in 5.0 in 37.1 oz 420 Y Mar 2016 1,499 iSony RX10 III
Note: Measurements and pricing do not include easily detachable parts, such as 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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the XTi is 1 percent smaller. As a result of these sensor size differences, the cameras have format factors, respectively, of 1.5 (G1X Mark III) and 1.6. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

In terms of chip-set technology, the G1X Mark III uses a more advanced image processing engine (DIGIC 7) than the XTi (DIGIC II), with benefits for noise reduction, color accuracy, and processing speed.

Canon G1 X Mark III and Canon XTi sensor measures

With 24MP, the G1X Mark III offers a higher resolution than the XTi (10.1MP), but the G1X Mark III has smaller individual pixels (pixel pitch of 3.72μm versus 5.71μm for the XTi). However, the G1X Mark III is a much more recent model (by 11 years and 1 month) than the XTi, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels.

The resolution advantage of the Canon G1 X Mark III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the G1X Mark III for good quality output (200 dots per inch) amounts to 30 x 20 inch or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inch or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inch or 50.8 x 33.9 cm. The corresponding values for the Canon XTi are 19.4 x 13 inch or 49.4 x 32.9 cm for good quality, 15.6 x 10.4 inch or 39.5 x 26.3 cm for very good quality, and 13 x 8.6 inch or 32.9 x 21.9 cm for excellent quality prints.

The G1X Mark III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon PowerShot G1 X Mark III has a native sensitivity range from ISO 100 to ISO 25600. The corresponding ISO settings for the Canon EOS Rebel XTi are ISO 100 to ISO 1600 (no boost).

G1X Mark III versus XTi MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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"). The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
 
Canon G1 X Mark III APS-C 24.0 6000 40001080/60p........Canon G1 X Mark III
 
Canon XTi APS-C 10.1 3888 2592none22.111.066462Canon XTi
 
Canon 6D Mark II Full Frame 26.0 6240 41601080/60p24.411.9286285Canon 6D Mark II
 
Canon 80D APS-C 24.0 6000 40001080/60p23.613.2113579Canon 80D
 
Canon SX540 1/2.3 20.2 5184 38881080/60p........Canon SX540
 
Canon T6i APS-C 24.0 6000 40001080/30p22.712.091971Canon T6i
 
Canon T6s APS-C 24.0 6000 40001080/30p22.612.091570Canon T6s
 
Canon XSi APS-C 12.2 4272 2848none21.910.869261Canon XSi
 
Canon XT APS-C 8.0 3456 2304none21.810.863760Canon XT
 
Canon Rebel APS-C 6.3 3072 2048none21.010.854455Canon Rebel
 
Fujifilm X100V APS-C 26.0 6240 41604K/30p........Fujifilm X100V
 
Fujifilm X-T3 APS-C 26.0 6240 41604K/60p........Fujifilm X-T3
 
Fujifilm X100F APS-C 24.0 6000 40001080/60p........Fujifilm X100F
 
Nikon D7500 APS-C 20.7 5568 37124K/30p24.314.0148386Nikon D7500
 
Sony A6300 APS-C 24.0 6000 40004K/30p24.413.7143785Sony A6300
 
Sony A6500 APS-C 24.0 6000 40004K/30p24.513.7140585Sony A6500
 
Sony RX10 III 1-inch 20.0 5472 36484K/30p23.112.647270Sony RX10 III

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The G1X Mark III indeed provides movie recording capabilities, while the XTi does not. The highest resolution format that the G1X Mark III can use is 1080/60p.

 

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the G1X Mark III has an electronic viewfinder (2360k dots), while the XTi 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 following table reports on some other key feature differences and similarities of the Canon G1 X Mark III, the Canon XTi, and comparable cameras.

Core Features
  Camera
Model
Viewfinder
(Type or
'000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
('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
Camera
Model
 
Canon G1 X Mark III2360 n 3.0 1040 swivel Y 1/2000s 9.0 Y Y Canon G1 X Mark III
 
Canon XTioptical n 2.5 230 fixed n 1/4000s 3.0 Y n Canon XTi
 
Canon 6D Mark IIoptical Y 3.0 1040 swivel Y 1/4000s 6.5 n n Canon 6D Mark II
 
Canon 80Doptical Y 3.0 1040 swivel Y 1/8000s 7.0 Y n Canon 80D
 
Canon SX540none n 3.0 461 fixed n 1/2000s 5.9 Y Y Canon SX540
 
Canon T6ioptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n Canon T6i
 
Canon T6soptical Y 3.0 1040 swivel Y 1/4000s 5.0 Y n Canon T6s
 
Canon XSioptical n 3.0 230 fixed n 1/4000s 3.5 Y n Canon XSi
 
Canon XToptical n 1.8 115 fixed n 1/4000s 3.0 Y n Canon XT
 
Canon Rebeloptical n 1.8 118 fixed n 1/4000s 2.5 Y n Canon Rebel
 
Fujifilm X100V3690 n 3.0 1620 tilting Y 1/4000s 11.0 Y n Fujifilm X100V
 
Fujifilm X-T33690 n 3.0 1040 tilting Y 1/8000s 11.0 n n Fujifilm X-T3
 
Fujifilm X100F2360 n 3.0 1040 fixed n 1/4000s 8.0 Y n Fujifilm X100F
 
Nikon D7500optical Y 3.2 922 tilting Y 1/8000s 8.0 Y n Nikon D7500
 
Sony A63002359 n 3.0 922 tilting n 1/4000s 11.0 Y n Sony A6300
 
Sony A65002359 n 3.0 922 tilting Y 1/4000s 11.0 Y Y Sony A6500
 
Sony RX10 III2359 Y 3.0 1229 tilting n 1/2000s 14.0 Y Y Sony RX10 III

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The G1X Mark III has a touchscreen, while the XTi has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The G1X Mark III has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the XTi does not have a selfie-screen.

The Canon G1 X Mark III 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 G1X Mark III 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 G1 X Mark III and Canon EOS Rebel XTi and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Canon G1 X Mark IIIYstereomono--micro2.0YYYCanon G1 X Mark III
 
Canon XTiYnonenone--none2.0---Canon XTi
 
Canon 6D Mark IIYstereomonoY-mini2.0YYYCanon 6D Mark II
 
Canon 80DYstereomonoYYmini2.0YY-Canon 80D
 
Canon SX540-stereomono--mini2.0YY-Canon SX540
 
Canon T6iYstereomonoY-mini2.0YY-Canon T6i
 
Canon T6sYstereomonoY-mini2.0YY-Canon T6s
 
Canon XSiYnonenone--mini2.0---Canon XSi
 
Canon XTYnonenone--none2.0---Canon XT
 
Canon RebelYnonenone--none1.1---Canon Rebel
 
Fujifilm X100VYstereomonoY-micro3.1Y-YFujifilm X100V
 
Fujifilm X-T3YstereomonoYYmicro3.1Y-YFujifilm X-T3
 
Fujifilm X100FYstereomonoY-micro2.0Y--Fujifilm X100F
 
Nikon D7500YstereomonoYYmini2.0Y-YNikon D7500
 
Sony A6300YstereomonoY-micro2.0YY-Sony A6300
 
Sony A6500YstereomonoY-micro2.0YY-Sony A6500
 
Sony RX10 IIIYstereomonoYYmicro2.0YY-Sony RX10 III

It is notable that the G1X Mark III 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 G1X Mark III is a recent model that features in the current product line-up of Canon. In contrast, the XTi has been discontinued (but it 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 how do things add up? Which of the two cameras – the Canon G1 X Mark III or the Canon XTi – 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 PowerShot G1 X Mark III:

  • More detail: Offers more megapixels (24 vs 10.1MP) with a 54% higher linear resolution.
  • Better jpgs: Has a more modern image processing engine (DIGIC 7 vs DIGIC II).
  • Broader imaging potential: Can record not only still images but also 1080/60p movies.
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • 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 (1040k vs 230k dots).
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (9 vs 3 flaps/sec) to capture the decisive moment.
  • 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 (115x78mm 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).
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • 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.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • More modern: Reflects 11 years and 1 month of technical progress since the XTi launch.


Reasons to prefer the Canon EOS Rebel XTi:

  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/2000s) to freeze action.
  • More flexible: Makes it possible to change lenses and thus to use specialty optics.
  • Longer lasting: Gets more shots (370 versus 200) out of a single battery charge.
  • More heavily discounted: Has been around for much longer (launched in August 2006).

If the count of individual advantages (bullet points above) is taken as a guide, the G1X Mark III is the clear winner of the match-up (21 : 5 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.

G1X Mark III 21:05 XTi

How about other alternatives? Do the specifications of the Canon G1 X Mark III 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 Mark III or the XTi. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews

This is where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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.

Review Scores
  Camera
Model
cam
era
  labs  
dp
re
  view  
e
photo
  zine  
ima
ging
resource
photo
graphy
  blog  
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Camera
Model
 
Canon G1 X Mark III+79/1004.5/5..4.5/5 Oct 2017 1,299 iCanon G1 X Mark III
 
Canon XTi+ ++ +o4.5/54/5 Aug 2006 799iCanon XTi
 
Canon 6D Mark II+80/1004.5/54/54/5 Jun 2017 1,999 iCanon 6D Mark II
 
Canon 80D+ +84/1004.5/54.5/54.5/5 Feb 2016 1,199iCanon 80D
 
Canon SX540.......... Jan 2016 399 iCanon SX540
 
Canon T6i..75/1004.5/54.5/54.5/5 Feb 2015 749iCanon T6i
 
Canon T6s+77/1004.5/54.5/54.5/5 Feb 2015 649iCanon T6s
 
Canon XSi+ ++ +4/55/54.5/5 Jan 2008 799iCanon XSi
 
Canon XT80/100+ +oo.. Feb 2005 899iCanon XT
 
Canon Rebel..+ +..o.. Aug 2003 899iCanon Rebel
 
Fujifilm X100V+ +86/1005/5..4.5/5 Feb 2020 1,399 iFujifilm X100V
 
Fujifilm X-T3+ +88/1005/55/55/5 Sep 2018 1,499 iFujifilm X-T3
 
Fujifilm X100F+83/1004.5/5..4.5/5 Jan 2017 1,299iFujifilm X100F
 
Nikon D7500+ +86/1005/54.5/54.5/5 Apr 2017 1,299 iNikon D7500
 
Sony A6300+85/1005/55/55/5 Feb 2016 999iSony A6300
 
Sony A6500+ +85/1004.5/55/54.5/5 Oct 2016 1,399iSony A6500
 
Sony RX10 III+84/1004.5/54.5/54.5/5 Mar 2016 1,499 iSony RX10 III
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. 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. Also, please note that some of the review sites have changed their methodology and reporting over time.

Canon G1 X Mark III:
Check Amazon price
Canon XTi:
Check Ebay offers

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.

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    Specifications: Canon G1 X Mark III 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 G1 X Mark III Canon XTi
    Camera Type Fixed lens compact camera Digital single lens reflex
    Camera Lens 24-72mm f/2.8-5.6 Canon EF mount lenses
    Launch Date October 2017 August 2006
    Launch Price USD 1299 USD 799
    Sensor Specs Canon G1 X Mark III Canon XTi
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor APS-C Sensor
    Sensor Size 22.3 x 14.9 mm 22.2 x 14.8 mm
    Sensor Area 332.27 mm2 328.56 mm2
    Sensor Diagonal 26.8 mm 26.7 mm
    Crop Factor 1.5x 1.6x
    Sensor Resolution 24 Megapixels 10.1 Megapixels
    Image Resolution 6000 x 4000 pixels 3888 x 2592 pixels
    Pixel Pitch 3.72 μm 5.71 μm
    Pixel Density 7.22 MP/cm2 3.07 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/60p Video no Video
    ISO Setting 100-25600 ISO 100-1600 ISO
    Image Processor DIGIC 7 DIGIC II
    DXO Sensor Quality (score) .. 62
    DXO Color Depth (bits) .. 22.1
    DXO Dynamic Range (EV) .. 11.0
    DXO Low Light (ISO) .. 664
    Screen Specs Canon G1 X Mark III Canon XTi
    Viewfinder Type Electronic viewfinder Optical viewfinder
    Viewfinder Field of View 100% 95%
    Viewfinder Magnification ..x 0.49x
    Viewfinder Resolution 2360k dots
    LCD Framing Live View
    Rear LCD Size 3.0 inch 2.5 inch
    LCD Resolution 1040k dots 230k dots
    LCD Attachment Swivel screen Fixed screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Canon G1 X Mark III Canon XTi
    Focus System On-Sensor Phase-detect Phase-detect AF
    Manual Focusing AidFocus PeakingNo Peaking Feature
    Continuous Shooting 9 shutter flaps/s 3 shutter flaps/s
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Fill Flash Build-in Flash Build-in Flash
    Storage Medium SDXC cards CF cards
    Second Storage Option Single card slot Single card slot
    Connectivity Specs Canon G1 X Mark III Canon XTi
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI no HDMI
    Wifi Support Wifi built-in no Wifi
    Near-Field Communication NFC built-in no NFC
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Canon G1 X Mark III Canon XTi
    Environmental SealingWeathersealed bodyNot weather sealed
    Battery Type NB-13L NB-2LH
    Battery Life (CIPA)200 shots per charge370 shots per charge
    Body Dimensions 115 x 78 x 51 mm
    (4.5 x 3.1 x 2.0 in)
    127 x 84 x 65 mm
    (5.0 x 3.3 x 2.6 in)
    Camera Weight 399 g (14.1 oz) 556 g (19.6 oz)

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