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Canon 1100D versus Sony A7 III

The Canon EOS 1100D (called Canon T3 in some regions) and the Sony Alpha A7 III are two digital cameras that were announced, respectively, in February 2011 and February 2018. The 1100D is a DSLR, while the A7 III is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (1100D) and a full frame (A7 III) sensor. The Canon has a resolution of 12.2 megapixel, whereas the Sony provides 24 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 1100D vs Sony A7 III

An illustration of the physical size and weight of the Canon 1100D and the Sony A7 III is provided 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 measures are rounded to the nearest millimeter. You can also use the toggle button 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 1100D – represents the basis or 100 percent across all the size and weight measures).

Compare Canon 1100D vs Sony A7 III
Compare 1100D versus A7 III top
Compare 1100D and A7 III rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7 III is notably smaller (6 percent) than the Canon 1100D. However, the A7 III is markedly heavier (31 percent) than the 1100D. It is noteworthy in this context that the A7 III is splash and dust-proof, while the 1100D does not feature any corresponding weather-sealing.

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. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can find an overview of optics for the two cameras in the Canon EF Lens Catalog (1100D) and the Sony FE Lens Catalog (A7 III). Mirrorless cameras, such as the A7 III, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.

Concerning battery life, the 1100D gets 700 shots out of its LP-E10 battery, while the A7 III can take 610 images on a single charge of its NP-FZ100 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 1100D» 5.1 in 3.9 in 3.1 in 17.5 oz 700 n Feb 2011 449- i Canon 1100D
Sony A7 III« 5.0 in 3.8 in 2.9 in 22.9 oz 610 Y Feb 2018 1,999 i i Sony A7 III
Canon 2000D« » 5.1 in 4.0 in 3.1 in 16.8 oz 500 n Feb 2018 449 i i Canon 2000D
Canon 4000D« » 5.1 in 4.0 in 3.0 in 15.4 oz 500 n Feb 2018 399 i i Canon 4000D
Canon 1200D« » 5.1 in 3.9 in 3.1 in 16.9 oz 500 n Feb 2014 449- i Canon 1200D
Canon 650D« » 5.2 in 3.9 in 3.1 in 20.3 oz 440 n Jun 2012 849- i Canon 650D
Canon G1 X« » 4.6 in 3.2 in 2.6 in 18.8 oz 250 n Jan 2012 799- i Canon G1 X
Canon SX50« » 4.8 in 3.4 in 4.2 in 21.0 oz 315 n Sep 2012 429- i Canon SX50
Canon 600D« » 5.2 in 3.9 in 3.1 in 20.1 oz 440 n Feb 2011 599- i Canon 600D
Canon 550D« » 5.1 in 3.9 in 2.4 in 18.7 oz 440 n Feb 2010 699- i Canon 550D
Canon 450D« » 5.1 in 3.9 in 2.4 in 18.5 oz 500 n Jan 2008 799- i Canon 450D
Canon 1000D« » 5.0 in 3.9 in 2.6 in 17.7 oz 500 n Jun 2008 449- i Canon 1000D
Sony A9« » 5.0 in 3.8 in 2.5 in 23.7 oz 650 Y Apr 2017 4,499 i i Sony A9
Sony A7R II« » 5.0 in 3.8 in 2.4 in 22.0 oz 290 Y Jun 2015 3,199- i Sony A7R II
Sony A7S II« » 5.0 in 3.8 in 2.4 in 22.1 oz 370 Y Sep 2015 2,999 i i Sony A7S II
Sony A7 II« » 5.0 in 3.8 in 2.4 in 21.1 oz 350 Y Nov 2014 1,999- i Sony A7 II
Sony A7« » 5.0 in 3.7 in 1.9 in 16.7 oz 340 Y Oct 2013 1,699- i Sony A7

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 1100D was launched at a markedly lower price (by 78 percent) than the A7 III, which puts it into a different market segment. 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 1100D vs Sony A7 III

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 tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units 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.

Of the two cameras under consideration, the Canon 1100D features an APS-C sensor and the Sony A7 III a full frame sensor. The sensor area in the A7 III is 162 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Canon 1100D and Sony A7 III sensor measures

With 24MP, the A7 III offers a higher resolution than the 1100D (12.2MP), but the A7 III nevertheless has larger individual pixels (pixel pitch of 5.94μm versus 5.15μm for the 1100D) due to its larger sensor. Moreover, the A7 III is a much more recent model (by 7 years) than the 1100D, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the A7 III has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The A7 III has on-sensor phase detect pixels, which results in relatively fast and reliable autofocus acquisition during video recording.

1100D versus A7 III MP

For many cameras, data on sensor performance has been reported by DXO Mark. 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 A7 III offers substantially better image quality than the 1100D (overall score 34 points higher). The advantage is based on 3.1 bits higher color depth, 3.7 EV in additional dynamic range, and 2.3 stops in additional low light sensitivity. 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 1100D» APS-C 12.2 4272 2848720/30p21.911.075562Canon 1100D
Sony A7 III« Full Frame 24.0 6000 40004K/30p25.014.7373096Sony A7 III
Canon 2000D« » APS-C 24.0 6000 40001080/30p22.611.9100971Canon 2000D
Canon 4000D« » APS-C 17.9 5184 34561080/30p21.911.469563Canon 4000D
Canon 1200D« » APS-C 17.9 5184 34561080/30p21.911.372463Canon 1200D
Canon 650D« » APS-C 17.9 5184 34561080/30p21.711.272262Canon 650D
Canon G1 X« » 1.5-inch 14.2 4352 32641080/24p21.710.864460Canon G1 X
Canon SX50« » 1/2.3 12.0 4000 30001080/24p20.311.217947Canon SX50
Canon 600D« » APS-C 17.9 5184 34561080/30p22.111.579365Canon 600D
Canon 550D« » APS-C 17.9 5184 34561080/30p22.111.578466Canon 550D
Canon 450D« » APS-C 12.2 4272 2848-21.910.869261Canon 450D
Canon 1000D« » APS-C 10.1 3888 2592-----Canon 1000D
Sony A9« » Full Frame 24.0 6000 40004K/30p24.913.3351792Sony A9
Sony A7R II« » Full Frame 42.2 7952 53044K/30p26.013.9343498Sony A7R II
Sony A7S II« » Full Frame 12.0 4240 28324K/30p23.613.3299385Sony A7S II
Sony A7 II« » Full Frame 24.0 6000 40001080/60p24.913.6244990Sony A7 II
Sony A7« » Full Frame 24.0 6000 40001080/60p24.814.2224890Sony A7

Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the A7 III provides a better video resolution than the 1100D. It can shoot movie footage at 4K/30p, while the Canon is limited to 720/30p.

 

Feature comparison: Canon 1100D vs Sony A7 III

Beyond body and sensor, cameras can and do differ across a range of features. For example, the A7 III has an electronic viewfinder (2359k dots), while the 1100D 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 table below summarizes some of the other core capabilities of the Canon 1100D and Sony A7 III in connection with corresponding information for a sample of similar cameras. If needed, the dpreview camera hub, for example, contains further detail on the cameras' specs.

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 1100D»optical n 2.7 230 fixed n 4000 3.0 Y n Canon 1100D
Sony A7 III«2359 n 3.0 922 tilting Y 8000 10.0 n Y Sony A7 III
Canon 2000D« »optical n 3.0 920 fixed n 4000 3.0 Y n Canon 2000D
Canon 4000D« »optical n 2.7 230 fixed n 4000 3.0 Y n Canon 4000D
Canon 1200D« »optical n 3.0 460 fixed n 4000 3.0 Y n Canon 1200D
Canon 650D« »optical n 3.0 1040 swivel Y 4000 5.0 Y n Canon 650D
Canon G1 X« »optical n 3.0 922 Swivel n 4000 1.9 Y Y Canon G1 X
Canon SX50« »202 n 3.0 461 swivel n 2000 2.2 Y Y Canon SX50
Canon 600D« »optical n 3.0 1040 swivel n 4000 3.7 Y n Canon 600D
Canon 550D« »optical n 3.0 1040 fixed n 4000 3.7 Y n Canon 550D
Canon 450D« »optical n 3.0 230 fixed n 4000 3.5 Y n Canon 450D
Canon 1000D« »optical n 2.5 230 fixed n 4000 3.0 Y n Canon 1000D
Sony A9« »3686 n 3.0 1440 tilting Y 8000 20.0 n Y Sony A9
Sony A7R II« »2400 n 3.0 1229 tilting n 8000 5.0 n Y Sony A7R II
Sony A7S II« »2400 n 3.0 1229 tilting n 8000 5.0 n Y Sony A7S II
Sony A7 II« »2400 n 3.0 1230 tilting n 8000 5.0 n Y Sony A7 II
Sony A7« »2400 n 3.0 1230 tilting n 8000 5.0 n n Sony A7

One difference between the cameras concerns the presence of an on-board flash. The 1100D has one, while the A7 III does not. While the build-in flash of the 1100D is not very powerful, it can at times be useful as a fill-in light.

The reported shutter speed and shutter burst refer to the use of the mechanical shutter. In addition, the A7 III features an electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (rolling shutter) or shooting under artificial light sources (flickering).

The 1100D writes its imaging data to SDXC cards, while the A7 III uses SDXC or Memory Stick PRO Duo 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 1100D»Ystereomono--mini2.0---Canon 1100D
Sony A7 III«YstereomonoYYmicro3.1YYYSony A7 III
Canon 2000D« »Ymonomono--mini2.0YY-Canon 2000D
Canon 4000D« »Ymonomono--mini2.0YY-Canon 4000D
Canon 1200D« »Ymonomono--mini2.0---Canon 1200D
Canon 650D« »YstereomonoY-mini2.0---Canon 650D
Canon G1 X« »Ystereomono--mini2.0---Canon G1 X
Canon SX50« »Ystereomono--mini2.0---Canon SX50
Canon 600D« »YmonomonoY-mini2.0---Canon 600D
Canon 550D« »Ystereo-Y-mini2.0---Canon 550D
Canon 450D« »Y----mini2.0---Canon 450D
Canon 1000D« »Y-----2.0---Canon 1000D
Sony A9« »YstereomonoYYmicro2.0YYYSony A9
Sony A7R II« »YstereomonoYYmicro2.0YY-Sony A7R II
Sony A7S II« »YstereomonoYYmicro2.0YY-Sony A7S II
Sony A7 II« »YstereomonoYYmicro2.0YY-Sony A7 II
Sony A7« »YstereomonoYYmicro2.0YY-Sony A7

The A7 III is a recent model that features in the current product line-up of Sony. In contrast, the 1100D has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the 1100D was succeeded by the Canon 1200D.

Review summary: Canon 1100D vs Sony A7 III

So how do things add up? Is the Canon 1100D better than the Sony A7 III or vice versa? Below is a summary of the relative strengths of each of the two contestants.

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Advantages of the Canon EOS 1100D:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Less heavy: Is lighter (by 155g or 24 percent) and hence easier to carry around.
  • Longer lasting: Can take more shots (700 versus 610) on a single battery charge.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced into a lower priced category (78 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in February 2011).

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Reasons to prefer the Sony Alpha A7 III:

  • More detail: Has more megapixels (24 vs 12.2MP), which boosts linear resolution by 40%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (34 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (3.1 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (3.7 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (2.3 stops ISO advantage).
  • Better video: Provides higher definition movie capture (4K/30p vs 720/30p).
  • Better video autofocus: Features on-sensor phase-detection for more confident movie autofocus.
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • Larger screen: Has a bigger rear LCD (3.0" vs 2.7") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (922k vs 230k 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 shutter: Has higher mechanical shutter speed (8000/sec vs 4000/sec) to freeze action.
  • Faster burst: Shoots at higher frequency (10 vs 3 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • 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 legacy lens friendly: Can use many non-native lenses via adapters.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • Easier file upload: Has wifi build 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 7 years of technical progress since the 1100D launch.

If the count of relative strengths (bullet points above) is taken as a measure, the A7 III is the clear winner of the contest (26 : 7 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.

1100D 07:26 A7 III

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the handling experience and imaging performance when actually working with the 1100D or the A7 III. 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 expert reviews are important. The adjacent table relays the overall verdicts of several of the most popular camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). The full reviews are available 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 1100D»80/10069/1004/54/54.5/5 Feb 2011 449- i Canon 1100D
Sony A7 III«HiRec89/1005/55/55/5 Feb 2018 1,999 i i Sony A7 III
Canon 2000D« »rev-3.5/5-3.5/5 Feb 2018 449 i i Canon 2000D
Canon 4000D« »rev-3.5/5-3.5/5 Feb 2018 399 i i Canon 4000D
Canon 1200D« »Rec-4/54/54.5/5 Feb 2014 449- i Canon 1200D
Canon 650D« »HiRec77/1004.5/54.5/54.5/5 Jun 2012 849- i Canon 650D
Canon G1 X« »Rec76/1004/54/54.5/5 Jan 2012 799- i Canon G1 X
Canon SX50« »HiRec72/1004.5/5-4.5/5 Sep 2012 429- i Canon SX50
Canon 600D« »rev77/1004.5/55/54.5/5 Feb 2011 599- i Canon 600D
Canon 550D« »HiRec77/1004/55/54.5/5 Feb 2010 699- i Canon 550D
Canon 450D« »HiRecHiRec4/55/54.5/5 Jan 2008 799- i Canon 450D
Canon 1000D« »82/100HiRec3.5/54/54.5/5 Jun 2008 449- i Canon 1000D
Sony A9« »HiRec89/1005/55/55/5 Apr 2017 4,499 i i Sony A9
Sony A7R II« »HiRec90/1005/54.5/55/5 Jun 2015 3,199- i Sony A7R II
Sony A7S II« »Rec-4.5/55/55/5 Sep 2015 2,999 i i Sony A7S II
Sony A7 II« »Rec82/1004.5/55/55/5 Nov 2014 1,999- i Sony A7 II
Sony A7« »HiRec80/1005/54.5/55/5 Oct 2013 1,699- i Sony A7

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. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.

 

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 make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting. If you cannot find the camera you are interested in, kindly get in touch, and I will try to locate and add the respective data to the application.

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