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Canon 10D versus Canon G3 X

The Canon EOS 10D and the Canon PowerShot G3 X are two digital cameras that were announced, respectively, in February 2003 and June 2015. The 10D is a DSLR, while the G3X is a fixed lens compact. The cameras are based on an APS-C (10D) and an one-inch (G3X) sensor. The 10D has a resolution of 6.3 megapixel, whereas the G3X provides 20 MP. Read on to find out how these two cameras compare with respect to their size, their sensors, their features, and their reception by expert reviewers.

Body comparison: Canon 10D vs Canon G3 X

The side-by-side display below illustrates the physical size and weight of the Canon 10D and the Canon G3 X. Three successive views from the front, the top, and the rear are shown. All size dimensions are rounded to the nearest millimeter. You can also toggle the display to switch to a percentage comparison if you prefer that the measures are being expressed in relative terms (in this case, the camera on the left – the 10D – represents the basis or 100 percent across all the size and weight measures).

Compare Canon 10D vs Canon G3 X
10D versus G3X top view
10D and G3X rear side

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 considerably smaller (41 percent) than the Canon 10D. It is noteworthy in this context that the G3X is splash and dust-proof, while the 10D 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 build in, whereas the 10D is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can find an overview of optics for the 10D and their specifications in the Canon EF Lens Catalog.

Concerning battery life, the 10D gets 500 shots out of its BP-511 battery, while the G3X can take 300 images on a single charge of its NB-10L power pack.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

Camera Body Specifications
Camera Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(y/n)
Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Canon 10D (⇒ rgt) 5.9 in 4.2 in 3.0 in 30.0 oz 500 no 2003 1,999discont. check
Canon G3 X (⇒ lft) 4.8 in 3.0 in 4.1 in 25.9 oz 300 YES 2015 999 latest check
Canon 80D (⇒ lft | rgt) 5.5 in 4.1 in 3.1 in 25.8 oz 960 YES 2016 1,199 latest check
Canon 7D II (⇒ lft | rgt) 5.9 in 4.4 in 3.1 in 32.1 oz 670 YES 2014 1,799 latest check
Canon T5i (⇒ lft | rgt) 5.2 in 3.9 in 3.1 in 20.5 oz 440 no 2013 649discont. check
Canon 70D (⇒ lft | rgt) 5.5 in 4.1 in 3.1 in 26.6 oz 920 YES 2013 1,199discont. check
Canon 7D (⇒ lft | rgt) 5.8 in 4.4 in 2.9 in 30.3 oz 800 YES 2009 1,699discont. check
Canon 40D (⇒ lft | rgt) 5.7 in 4.3 in 2.9 in 29.0 oz 750 no 2007 1,299discont. check
Canon 30D (⇒ lft | rgt) 5.7 in 4.2 in 2.9 in 27.7 oz 750 no 2006 1,399discont. check
Canon 20D (⇒ lft | rgt) 5.7 in 4.2 in 2.8 in 27.2 oz 700 no 2004 1,499discont. check
Canon Rebel (⇒ lft | rgt) 5.6 in 3.9 in 2.8 in 22.9 oz 400 no 2003 899discont. check
Canon D60 (⇒ lft | rgt) 5.9 in 4.2 in 3.0 in 30.2 oz 620 no 2002 2,999discont. check
Nikon D100 (⇒ lft | rgt) 5.7 in 4.6 in 3.2 in 27.5 oz 370 no 2002 1,999discont. check
Panasonic FZ1000 (⇒ lft | rgt) 5.4 in 3.9 in 5.2 in 29.3 oz 360 no 2014 899discont. check
Sony RX100 IV (⇒ lft | rgt) 4.0 in 2.3 in 1.6 in 10.5 oz 280 no 2015 999discont. check

The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The G3X was launched at a lower price than the 10D, despite having a lens build in. 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Sensor comparison: Canon 10D vs Canon G3 X

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 10D features an APS-C sensor and the Canon G3 X an one-inch sensor. The sensor area in the G3X is 66 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.

Canon 10D and Canon G3 X sensor measures

Despite having a smaller sensor, the G3X offers a higher resolution of 20 megapixel, compared with 6.3 MP of the 10D. This megapixel 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 7.38μm for the 10D). However, it should be noted that the G3X is much more recent (by 12 years and 3 months) than the 10D, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.

10D versus G3X MP

Consistent information on actual sensor performance is available from DXO Mark for most 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 G3X has a markedly higher DXO score than the 10D (overall score 6 points higher), which will translate into better image quality. The advantage is based on 0.3 bits higher color depth, 1.4 EV in additional dynamic range, 0.1 stops of reduced 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.

Sensor Characteristics
Camera Sensor
Class
Resolution
(Megapixel)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Canon 10D (⇒ rgt) APS-C 6.3 3072 2048 no 21.1 10.9 571 57
Canon G3 X (⇒ lft) 1-inch 20.0 5472 3648 1080/60p 21.4 12.3 521 63
Canon 80D (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 23.6 13.2 1135 79
Canon 7D II (⇒ lft | rgt) APS-C 20.0 5472 3648 1080/60p 22.4 11.8 1082 70
Canon T5i (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 21.7 11.2 681 61
Canon 70D (⇒ lft | rgt) APS-C 20.0 5472 3648 1080/30p 22.5 11.6 926 68
Canon 7D (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 22.0 11.7 854 66
Canon 40D (⇒ lft | rgt) APS-C 10.1 3888 2592 no 22.1 11.3 703 64
Canon 30D (⇒ lft | rgt) APS-C 8.2 3504 2336 no 21.5 10.8 736 59
Canon 20D (⇒ lft | rgt) APS-C 8.2 3504 2336 no 21.9 11.0 721 62
Canon Rebel (⇒ lft | rgt) APS-C 6.3 3072 2048 no 21.0 10.8 544 55
Canon D60 (⇒ lft | rgt) APS-C 6.3 3072 2048 no - - - -
Nikon D100 (⇒ lft | rgt) APS-C 6.0 3008 2000 no - - - -
Panasonic FZ1000 (⇒ lft | rgt) 1-inch 20.0 5472 3648 4K/30p 22.1 11.7 517 64
Sony RX100 IV (⇒ lft | rgt) 1-inch 20.0 5472 3648 4K/30p 22.8 12.6 591 70

Many modern cameras cannot only take still pictures, but also record videos. The G3X indeed provides for movie recording, while the 10D does not. The highest resolution format that the G3X can use is 1080/60p.

Feature comparison: Canon 10D vs Canon G3 X

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the 10D 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. The adjacent table lists some of the other core features of the Canon 10D and Canon G3 X along with similar information for a selection of comparators. If needed, the dpreview camera hub, for example, contains further detail on the cameras' specs.

Core Features
Camera Viewfinder
(Type or
'000 dots)
Control
Panel
(Y/n)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(Y/n)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec))
Build-in
Flash
(GN)
Build-in
Image
Stab
Canon 10D (⇒ rgt) optical YES 1.8 118 fixed no 4000 3.0 13 no
Canon G3 X (⇒ lft) no no 3.2 1620 tilting YES 2000 5.9 6.8 YES
Canon 80D (⇒ lft | rgt) optical YES 3.0 1040 swivel YES 8000 7.0 12 no
Canon 7D II (⇒ lft | rgt) optical YES 3.0 1040 fixed no 8000 10.0 11 no
Canon T5i (⇒ lft | rgt) optical no 3.0 1040 swivel YES 4000 5.0 13 no
Canon 70D (⇒ lft | rgt) optical YES 3.0 1040 swivel YES 8000 7.0 12 no
Canon 7D (⇒ lft | rgt) optical YES 3.0 920 fixed no 8000 8.0 12 no
Canon 40D (⇒ lft | rgt) optical YES 3.0 230 fixed no 8000 6.5 12 no
Canon 30D (⇒ lft | rgt) optical YES 2.5 230 fixed no 8000 5.0 13 no
Canon 20D (⇒ lft | rgt) optical YES 1.8 118 fixed no 8000 5.0 13 no
Canon Rebel (⇒ lft | rgt) optical no 1.8 118 fixed no 4000 2.5 13 no
Canon D60 (⇒ lft | rgt) optical YES 1.8 114 fixed no 4000 3.0 12 no
Nikon D100 (⇒ lft | rgt) optical YES 1.8 118 fixed no 4000 3.0 11 no
Panasonic FZ1000 (⇒ lft | rgt) 2359 no 3.0 921 swivel no 4000 12.0 13.5 YES
Sony RX100 IV (⇒ lft | rgt) 2359 no 3.0 1228 tilting no 2000 16.0 10.2 YES

The G3X is a current model that online retailers, such as amazon, will have in stock. In contrast, the 10D has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the 10D was succeeded by the Canon 20D.

Review summary: Canon 10D vs Canon G3 X

So how do things add up? Which of the two cameras – the Canon 10D or the Canon G3 X – has the upper hand? A synthesis of the relative strong points of each of the models is listed below.


Arguments in favor of the Canon EOS 10D:

  • Easier framing: Has an optical viewfinder for image framing and settings control.
  • Easier setting verification: Has an LCD display on top to control shooting parameters.
  • Faster shutter: Has higher mechanical shutter speed (4000/sec vs 2000/sec) 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 February 2003).

Advantages of the Canon PowerShot G3 X:

  • More detail: Has more megapixels (20 vs 6.3MP), which boosts linear resolution by 78%.
  • Better image quality: Scores markedly higher (6 points) in the DXO overall evaluation.
  • More dynamic range: Captures a broader range of light and dark details (1.4 EV of extra DR).
  • Broader imaging potential: Can capture not only stills but also 1080/60p video.
  • Larger screen: Has a bigger rear LCD (3.2" vs 1.8") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1620k vs 118k 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.
  • Faster burst: Shoots at higher frequency (5.9 vs 3 flaps/sec) to capture the decisive moment.
  • Ready to shoot: Comes with an integrated lens, while the 10D requires a separate lens.
  • More compact: Is smaller (123x77mm vs 150x107mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight even though it has a lens build in (unlike the 10D).
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Sharper images: Has stabilization technology build-in to reduce the impact of hand-shake.
  • More affordable: Was introduced at a lower price, despite coming with a build-in lens.
  • More modern: Reflects 12 years and 3 months of technical progress since the 10D launch.

If the count of individual advantages (bullet points above) is taken as a guide, the G3X is the clear winner of the contest (16 : 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.

10D 06:16 G3X

In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the handling experience and imaging performance when actually working with the 10D 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 why expert reviews are important. The table below summarizes the assessments of some of the best known camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). The detailed reviews can be accessed by clicking on the site logo in the table header.

Review scores
Camera cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Canon 10D (⇒ rgt) - HiRec - reviewed - 2003 1,999discont. check
Canon G3 X (⇒ lft) Rec - 4.5/5 3.5/5 4/5 2015 999 latest check
Canon 80D (⇒ lft | rgt) HiRec 84/100 Silver 4.5/5 4.5/5 4.5/5 2016 1,199 latest check
Canon 7D II (⇒ lft | rgt) Rec 84/100 Silver 4/5 5/5 4.5/5 2014 1,799 latest check
Canon T5i (⇒ lft | rgt) - 76/100 Silver 4.5/5 4.5/5 4.5/5 2013 649discont. check
Canon 70D (⇒ lft | rgt) HiRec 83/100 Gold 4.5/5 4.5/5 5/5 2013 1,199discont. check
Canon 7D (⇒ lft | rgt) 93/100 HiRec 84/100 4.5/5 5/5 4.5/5 2009 1,699discont. check
Canon 40D (⇒ lft | rgt) 90/100 HiRec HiRec 4.5/5 reviewed 4.5/5 2007 1,299discont. check
Canon 30D (⇒ lft | rgt) 87/100 HiRec HiRec reviewed reviewed - 2006 1,399discont. check
Canon 20D (⇒ lft | rgt) - HiRec - reviewed - 2004 1,499discont. check
Canon Rebel (⇒ lft | rgt) - HiRec - reviewed - 2003 899discont. check
Canon D60 (⇒ lft | rgt) - HiRec reviewed - - 2002 2,999discont. check
Nikon D100 (⇒ lft | rgt) - HiRec reviewed reviewed - 2002 1,999discont. check
Panasonic FZ1000 (⇒ lft | rgt) HiRec 82/100 Gold 4.5/5 4.5/5 4.5/5 2014 899discont. check
Sony RX100 IV (⇒ lft | rgt) HiRec 85/100 Gold 4/5 4.5/5 4.5/5 2015 999discont. check

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 comparisons of ratings among very different cameras or across long time periods have little meaning. 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? In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. An an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool. If you cannot find the camera you are interested in, please contact me, and I will try to locate and add the respective data to the application.

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