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Canon 100D versus Canon 400D

The Canon EOS 100D (called Canon SL1 in some regions) and the Canon EOS 400D (labelled Canon XTi in some countries) are two digital cameras that were officially introduced, respectively, in March 2013 and August 2006. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The 100D has a resolution of 17.9 megapixel, whereas the 400D provides 10.1 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 100D vs Canon 400D

The side-by-side display below illustrates the physical size and weight of the Canon 100D and the Canon 400D. 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 measures 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 100D – represents 100 percent across all the size and weight measures).

Compare Canon 100D vs Canon 400D
Compare 100D versus 400D top
Compare 100D and 400D rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon 100D and the Canon 400D are of equal size. However, the 400D is substantially heavier (37 percent) than the 100D. In this context, it is worth noting that neither the 100D nor the 400D are weather-sealed.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. In this particular case, both cameras feature the same lens mount, so that they can use the same lenses. You can find an overview of suitable optics in the Canon EF Lens Catalog.

Concerning battery life, the 100D gets 380 shots out of its LP-E12 battery, while the 400D can take 370 images on a single charge of its NB-2LH power pack.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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)
Used
Price
(USD)
Camera
Model
Canon 100D» 4.6 in 3.6 in 2.7 in 14.4 oz 380 n Mar 2013 549- i Canon 100D
Canon 400D« 5.0 in 3.3 in 2.6 in 19.6 oz 370 n Aug 2006 799- i Canon 400D
Canon 4000D« » 5.1 in 4.0 in 3.0 in 15.4 oz 500 n Feb 2018 399 i i Canon 4000D
Canon 200D« » 4.8 in 3.7 in 2.8 in 16.0 oz 650 n Jun 2017 549 i i Canon 200D
Canon 750D« » 5.2 in 4.0 in 3.1 in 19.6 oz 440 n Feb 2015 749- i Canon 750D
Canon 760D« » 5.2 in 4.0 in 3.1 in 19.9 oz 440 n Feb 2015 849- i Canon 760D
Canon 7D II« » 5.9 in 4.4 in 3.1 in 32.1 oz 670 Y Sep 2014 1,799 i i Canon 7D II
Canon 1200D« » 5.1 in 3.9 in 3.1 in 16.9 oz 500 n Feb 2014 449- i Canon 1200D
Canon 700D« » 5.2 in 3.9 in 3.1 in 20.5 oz 440 n Mar 2013 649- i Canon 700D
Canon G16« » 4.3 in 3.0 in 1.6 in 12.6 oz 360 n Aug 2013 549 i i Canon G16
Canon 650D« » 5.2 in 3.9 in 3.1 in 20.3 oz 440 n Jun 2012 849- i Canon 650D
Canon M« » 4.3 in 2.6 in 1.3 in 10.5 oz 230 n Jul 2012 599- i Canon M
Canon 600D« » 5.2 in 3.9 in 3.1 in 20.1 oz 440 n Feb 2011 599- i Canon 600D
Canon 450D« » 5.1 in 3.9 in 2.4 in 18.5 oz 500 n Jan 2008 799- i Canon 450D
Canon 40D« » 5.7 in 4.3 in 2.9 in 29.0 oz 750 n Aug 2007 1,299- i Canon 40D
Canon 350D« » 5.0 in 3.7 in 2.5 in 19.0 oz 400 n Feb 2005 899- i Canon 350D
Panasonic G6« » 4.8 in 3.3 in 2.8 in 13.8 oz 340 n Apr 2013 599- i Panasonic G6

The camera’s price is obviously a critical decision-making factor. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The 100D was launched at a markedly lower price (by 31 percent) than the 400D, which puts it into a different market segment. 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: Canon 100D vs Canon 400D

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the 400D is 1 percent smaller. They nevertheless have the same format factor of 1.6. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

In terms of chip-set technology, the 100D uses a more advanced image processing engine (DIGIC 5) than the 400D (DIGIC II), with benefits for noise reduction, color accuracy, and processing speed.

Canon 100D and Canon 400D sensor measures

With 17.9MP, the 100D offers a higher resolution than the 400D (10.1MP), but the 100D has smaller individual pixels (pixel pitch of 4.31μm versus 5.71μm for the 400D). However, the 100D is a somewhat more recent model (by 6 years and 6 months) than the 400D, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels.

The 100D has on-sensor phase detect pixels, which results in relatively fast and reliable autofocus acquisition during video recording.

100D versus 400D MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 image quality. 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 100D» APS-C 17.9 5184 34561080/30p21.811.384363Canon 100D
Canon 400D« APS-C 10.1 3888 2592-22.111.066462Canon 400D
Canon 4000D« » APS-C 17.9 5184 34561080/30p21.911.469563Canon 4000D
Canon 200D« » APS-C 24.0 6000 40001080/60p23.613.4104179Canon 200D
Canon 750D« » APS-C 24.0 6000 40001080/60p22.712.091971Canon 750D
Canon 760D« » APS-C 24.0 6000 40001080/30p22.612.091570Canon 760D
Canon 7D II« » APS-C 20.0 5472 36481080/60p22.411.8108270Canon 7D II
Canon 1200D« » APS-C 17.9 5184 34561080/30p21.911.372463Canon 1200D
Canon 700D« » APS-C 17.9 5184 34561080/30p21.711.268161Canon 700D
Canon G16« » 1/1.7 12.0 4000 30001080/60p21.011.723054Canon G16
Canon 650D« » APS-C 17.9 5184 34561080/30p21.711.272262Canon 650D
Canon M« » APS-C 17.9 5184 34561080/30p22.111.282765Canon M
Canon 600D« » APS-C 17.9 5184 34561080/30p22.111.579365Canon 600D
Canon 450D« » APS-C 12.2 4272 2848-21.910.869261Canon 450D
Canon 40D« » APS-C 10.1 3888 2592-22.111.370364Canon 40D
Canon 350D« » APS-C 8.0 3456 2304-21.810.863760Canon 350D
Panasonic G6« » Four Thirds 15.9 4608 34561080/60p21.311.563961Panasonic G6

Many modern cameras cannot only take still pictures, but also record videos. The 100D indeed provides movie recording capabilities, while the 400D does not. The highest resolution format that the 100D can use is 1080/30p.

 

Feature comparison: Canon 100D vs Canon 400D

Apart from body and sensor, cameras can and do differ across a variety of features. The 100D and the 400D 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 table below summarizes some of the other core capabilities of the Canon 100D and Canon 400D in connection with corresponding information for a sample of similar cameras. The full specs-sheets can be found in the camera manual or in the dpreview camera hub.

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)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec)
Build-in
Flash
(yes/no)
Build-in
Image
Stab
Camera
Model
Canon 100D»optical n 3.0 1040 fixed Y 4000 4.9 Y n Canon 100D
Canon 400D«optical n 2.5 230 fixed n 4000 3.0 Y n Canon 400D
Canon 4000D« »optical n 2.7 230 fixed n 4000 3.0 Y n Canon 4000D
Canon 200D« »optical n 3.0 1040 swivel Y 4000 5.0 Y n Canon 200D
Canon 750D« »optical n 3.0 1040 swivel Y 4000 5.0 Y n Canon 750D
Canon 760D« »optical Y 3.0 1040 swivel Y 4000 5.0 Y n Canon 760D
Canon 7D II« »optical Y 3.0 1040 fixed n 8000 10.0 Y n Canon 7D II
Canon 1200D« »optical n 3.0 460 fixed n 4000 3.0 Y n Canon 1200D
Canon 700D« »optical n 3.0 1040 swivel Y 4000 5.0 Y n Canon 700D
Canon G16« »optical n 3.0 922 fixed n 4000 2.2 Y Y Canon G16
Canon 650D« »optical n 3.0 1040 swivel Y 4000 5.0 Y n Canon 650D
Canon M« »- n 3.0 1040 fixed Y 4000 4.3 n n Canon M
Canon 600D« »optical n 3.0 1040 swivel n 4000 3.7 Y n Canon 600D
Canon 450D« »optical n 3.0 230 fixed n 4000 3.5 Y n Canon 450D
Canon 40D« »optical Y 3.0 230 fixed n 8000 6.5 Y n Canon 40D
Canon 350D« »optical n 1.8 115 fixed n 4000 3.0 Y n Canon 350D
Panasonic G6« »1440 n 3.0 1036 swivel Y 4000 7.0 Y n Panasonic G6

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The 100D has a touchscreen, while the 400D has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The 100D writes its imaging data to SDXC cards, while the 400D uses Compact Flash cards.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
Canon 100D»YmonomonoY-mini2.0---Canon 100D
Canon 400D«Y-----2.0---Canon 400D
Canon 4000D« »Ymonomono--mini2.0YY-Canon 4000D
Canon 200D« »YstereomonoY-mini2.0YYYCanon 200D
Canon 750D« »YstereomonoY-mini2.0YY-Canon 750D
Canon 760D« »YstereomonoY-mini2.0YY-Canon 760D
Canon 7D II« »YstereomonoYYmini3.0---Canon 7D II
Canon 1200D« »Ymonomono--mini2.0---Canon 1200D
Canon 700D« »YstereomonoY-mini2.0---Canon 700D
Canon G16« »Ystereomono--mini2.0Y--Canon G16
Canon 650D« »YstereomonoY-mini2.0---Canon 650D
Canon M« »YstereomonoY-mini2.0---Canon M
Canon 600D« »YmonomonoY-mini2.0---Canon 600D
Canon 450D« »Y----mini2.0---Canon 450D
Canon 40D« »Y-----2.0---Canon 40D
Canon 350D« »Y-----2.0---Canon 350D
Panasonic G6« »YstereomonoY-mini2.0YY-Panasonic G6

Both the 100D and the 400D have been discontinued, but can regularly be found used on eBay. The 400D was replaced by the Canon 450D, while the 100D was followed by the Canon 200D.

Review summary: Canon 100D vs Canon 400D

So how do things add up? Is there a clear favorite between the Canon 100D and the Canon 400D? A synthesis of the relative strong points of each of the models is listed below.


Reasons to prefer the Canon EOS 100D:

  • More detail: Offers more megapixels (17.9 vs 10.1MP) with a 33% higher linear resolution.
  • Better low-light sensitivity: Requires less light for good images (0.3 stops ISO advantage).
  • 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 1080/30p movies.
  • Better video autofocus: Features on-sensor phase-detection for more confident movie autofocus.
  • 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).
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Faster burst: Shoots at higher frequency (4.9 vs 3 flaps/sec) to capture the decisive moment.
  • Less heavy: Is lighter (by 149g or 27 percent) and hence easier to carry around.
  • More affordable: Was introduced into a lower priced category (31 percent cheaper at launch).
  • More modern: Reflects 6 years and 6 months of technical progress since the 400D launch.


Advantages of the Canon EOS 400D:

  • 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 100D is the clear winner of the match-up (12 : 1 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera.

100D 12:01 400D

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains incomplete and does no justice, for example, to the way the 100D or the 400D handle or 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 where reviews by experts come in. The table below summarizes the assessments of some of the best known camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). You can find the full text of the reviews by clicking on the site logo in the table header.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
Canon 100D»Rec78/1004/54/54/5 Mar 2013 549- i Canon 100D
Canon 400D«HiRecHiRecrev4.5/54/5 Aug 2006 799- i Canon 400D
Canon 4000D« »rev-3.5/5-3.5/5 Feb 2018 399 i i Canon 4000D
Canon 200D« »HiRec78/1004.5/54.5/54.5/5 Jun 2017 549 i i Canon 200D
Canon 750D« »-75/1004.5/54.5/54.5/5 Feb 2015 749- i Canon 750D
Canon 760D« »Rec77/1004.5/54.5/54.5/5 Feb 2015 849- i Canon 760D
Canon 7D II« »Rec84/1004/55/54.5/5 Sep 2014 1,799 i i Canon 7D II
Canon 1200D« »Rec-4/54/54.5/5 Feb 2014 449- i Canon 1200D
Canon 700D« »-76/1004.5/54.5/54.5/5 Mar 2013 649- i Canon 700D
Canon G16« »Rec-4.5/54.5/54.5/5 Aug 2013 549 i i Canon G16
Canon 650D« »HiRec77/1004.5/54.5/54.5/5 Jun 2012 849- i Canon 650D
Canon M« »Rec-4/53.5/54/5 Jul 2012 599- i Canon M
Canon 600D« »rev77/1004.5/55/54.5/5 Feb 2011 599- i Canon 600D
Canon 450D« »HiRecHiRec4/55/54.5/5 Jan 2008 799- i Canon 450D
Canon 40D« »HiRecHiRec4.5/5rev4.5/5 Aug 2007 1,299- i Canon 40D
Canon 350D« »80/100HiRecrevrev- Feb 2005 899- i Canon 350D
Panasonic G6« »HiRec-5/5-4.5/5 Apr 2013 599- i Panasonic G6

Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. 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? In case you would like to check on the differences and similarities of other camera models, just use the search menu below. 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 the camera you are interested in is not available, kindly get in touch, and I will try to locate and add the respective data to the application.

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