Canon 1100D vs Sony A9
The Canon EOS 1100D (called Canon T3 in some regions) and the Sony Alpha A9 are two digital cameras that were announced, respectively, in February 2011 and April 2017. The 1100D is a DSLR, while the A9 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (1100D) and a full frame (A9) sensor. The Canon has a resolution of 12.2 megapixels, whereas the Sony provides 24 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Canon 1100D||Sony A9|
|Digital single lens reflex||Mirrorless system camera|
|Canon EF mount lenses||Sony E mount lenses|
|12.2 MP, APS-C Sensor||24 MP, Full Frame Sensor|
|720/30p Video||4K/30p Video|
|ISO 100-6,400||ISO 100-51,200 (50 - 204,800)|
|Optical viewfinder||Electronic viewfinder (3686k dots)|
|2.7 LCD, 230k dots||3.0 LCD, 1440k dots|
|Fixed screen (not touch-sensitive)||Tilting touchscreen|
|3 shutter flaps per second||20 shutter flaps per second|
|Lens stabilization only||In-body stabilization|
|not weather sealed||Weathersealed body|
|700 shots per battery charge||650 shots per battery charge|
|130 x 100 x 78 mm, 495 g||127 x 96 x 63 mm, 673 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 1100D and the Sony Alpha A9? 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.
An illustration of the physical size and weight of the Canon 1100D and the Sony A9 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.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A9 is notably smaller (6 percent) than the Canon 1100D. However, the A9 is substantially heavier (36 percent) than the 1100D. It is noteworthy in this context that the A9 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 compare the optics available for the two cameras in the Canon EF Lens Catalog (1100D) and the Sony FE Lens Catalog (A9). Mirrorless cameras, such as the A9, 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 A9 can take 650 images on a single charge of its NP-FZ100 power pack. The power pack in the A9 can be charged via the USB port, which can be very convenient when travelling.
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.
|Canon 1100D||5.1 in||3.9 in||3.1 in||17.5 oz||700||n||Feb 2011||449|
|Sony A9||5.0 in||3.8 in||2.5 in||23.7 oz||650||Y||Apr 2017||4,499|
|Canon 2000D||5.1 in||4.0 in||3.1 in||16.8 oz||500||n||Feb 2018||449|
|Canon 4000D||5.1 in||4.0 in||3.0 in||15.4 oz||500||n||Feb 2018||399|
|Canon 1200D||5.1 in||3.9 in||3.1 in||16.9 oz||500||n||Feb 2014||449|
|Canon 650D||5.2 in||3.9 in||3.1 in||20.3 oz||440||n||Jun 2012||849|
|Canon G1 X||4.6 in||3.2 in||2.6 in||18.8 oz||250||n||Jan 2012||799|
|Canon SX50||4.8 in||3.4 in||4.2 in||21.0 oz||315||n||Sep 2012||429|
|Canon 600D||5.2 in||3.9 in||3.1 in||20.1 oz||440||n||Feb 2011||599|
|Canon 550D||5.1 in||3.9 in||2.4 in||18.7 oz||440||n||Feb 2010||699|
|Canon 450D||5.1 in||3.9 in||2.4 in||18.5 oz||500||n||Jan 2008||799|
|Canon 1000D||5.0 in||3.9 in||2.6 in||17.7 oz||500||n||Jun 2008||449|
|Nikon Z6||5.3 in||4.0 in||2.6 in||23.8 oz||310||Y||Aug 2018||1,999|
|Sony A9 II||5.1 in||3.8 in||3.0 in||23.9 oz||690||Y||Oct 2019||4,499|
|Sony A7 III||5.0 in||3.8 in||2.9 in||22.9 oz||610||Y||Feb 2018||1,999|
|Sony A7R III||5.0 in||3.8 in||2.9 in||22.9 oz||650||Y||Oct 2017||3,199|
|Sony A7 II||5.0 in||3.8 in||2.4 in||21.1 oz||350||Y||Nov 2014||1,999|
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.
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 90 percent) than the A9, 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.
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 A9 a full frame sensor. The sensor area in the A9 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.
With 24MP, the A9 offers a higher resolution than the 1100D (12.2MP), but the A9 nevertheless has larger individual pixels (pixel pitch of 5.94μm versus 5.15μm for the 1100D) due to its larger sensor. Moreover, the A9 is a much more recent model (by 6 years and 2 months) 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.
The resolution advantage of the Sony A9 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A9 for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Canon 1100D are 21.4 x 14.2 inches or 54.3 x 36.2 cm for good quality, 17.1 x 11.4 inches or 43.4 x 28.9 cm for very good quality, and 14.2 x 9.5 inches or 36.2 x 24.1 cm for excellent quality prints.
The A9 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Canon EOS 1100D has a native sensitivity range from ISO 100 to ISO 6400. The corresponding ISO settings for the Sony Alpha A9 are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 50-204800.
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 A9 offers substantially better image quality than the 1100D (overall score 30 points higher). The advantage is based on 3 bits higher color depth, 2.3 EV in additional dynamic range, and 2.2 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.
|Sony A9||Full Frame||24.0||6000||4000||4K/30p||24.9||13.3||3517||92|
|Canon G1 X||1.5-inch||14.2||4352||3264||1080/24p||21.7||10.8||644||60|
|Nikon Z6||Full Frame||24.3||6048||4024||4K/30p||25.3||14.3||3299||95|
|Sony A9 II||Full Frame||24.0||6000||4000||4K/30p||25.0||14.0||3434||93|
|Sony A7 III||Full Frame||24.0||6000||4000||4K/30p||25.0||14.7||3730||96|
|Sony A7R III||Full Frame||42.2||7952||5304||4K/30p||26.0||14.7||3523||100|
|Sony A7 II||Full Frame||24.0||6000||4000||1080/60p||24.9||13.6||2449||90|
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 A9 provides a better video resolution than the 1100D. It can shoot movie footage at 4K/30p, while the Canon is limited to 720/30p.
Beyond body and sensor, cameras can and do differ across a range of features. For example, the A9 has an electronic viewfinder (3686k 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 viewfinder in the A9 offers a wider field of view (100%) than the one in the 1100D (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the A9 has a higher magnification (0.78x vs 0.50x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Canon 1100D and Sony A9 in connection with corresponding information for a sample of similar cameras.
|Canon G1 X||optical||n||3.0||922||Swivel||n||1/4000s||1.9||Y||Y|
|Sony A9 II||3686||n||3.0||1440||tilting||Y||1/8000s||10.0||n||Y|
|Sony A7 III||2359||n||3.0||922||tilting||Y||1/8000s||10.0||n||Y|
|Sony A7R III||3686||n||3.0||1440||tilting||Y||1/8000s||10.0||n||Y|
|Sony A7 II||2400||n||3.0||1230||tilting||n||1/8000s||5.0||n||Y|
One difference between the cameras concerns the presence of an on-board flash. The 1100D has one, while the A9 does not. While the built-in flash of the 1100D is not very powerful, it can at times be useful as a fill-in light.
The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the A9 is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).
The 1100D writes its imaging data to SDXC cards, while the A9 uses SDXC or Memory Stick PRO Duo cards. The A9 features dual card slots, which can be very useful in case a memory card fails. In contrast, the 1100D only has one slot. The A9 supports UHS-II cards on its first slot and UHS-I on its second one, while the 1100D cannot take advantage of Ultra High Speed SD cards.
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 EOS 1100D and Sony Alpha A9 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
|Canon G1 X||Y||stereo||mono||-||-||mini||2.0||-||-||-|
|Sony A9 II||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y|
|Sony A7 III||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y|
|Sony A7R III||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y|
|Sony A7 II||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-|
It is notable that the A9 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the 1100D does not provide wifi capability.
Studio photographers will appreciate that the Sony A9 (unlike the 1100D) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the 1100D and the A9 have been discontinued, but can regularly be found used on eBay. The 1100D was replaced by the Canon 1200D, while the A9 was followed by the Sony A9 II. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Sony websites.
So how do things add up? Is the Canon 1100D better than the Sony A9 or vice versa? Below is a summary of the relative strengths of each of the two contestants.
Advantages of the Canon EOS 1100D:
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Less heavy: Is lighter (by 178g or 26 percent) and hence easier to carry around.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More affordable: Was introduced into a lower priced category (90 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in February 2011).
Reasons to prefer the Sony Alpha A9:
- More detail: Has more megapixels (24 vs 12.2MP), which boosts linear resolution by 40%.
- Better image quality: Scores substantially higher (30 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (3 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (2.3 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (2.2 stops ISO advantage).
- Better video: Provides higher definition movie capture (4K/30p vs 720/30p).
- Better live-view autofocus: Features on-sensor phase-detection for more confident 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.
- More complete view: Has a viewfinder with a larger field of view (100% vs 95%).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.50x).
- 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 (1440k 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 (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (20 vs 3 flaps/sec) to capture the decisive moment.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- Easier travel charging: Can be conveniently charged via its USB port.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- 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.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- Faster buffer clearing: Supports Ultra High Speed (UHS-II and UHS-I) SDXC cards.
- More modern: Reflects 6 years and 2 months of technical progress since the 1100D launch.
If the count of relative strengths (bullet points above) is taken as a measure, the A9 is the clear winner of the contest (29 : 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 wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.
How about other alternatives? Do the specifications of the Canon 1100D and the Sony A9 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.
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 shooting experience and imaging performance when actually working with the 1100D or the A9. 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 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.
|Canon 1100D||80/100||69/100||4/5||4/5||4.5/5||Feb 2011||449|
|Sony A9||+ +||89/100||5/5||5/5||5/5||Apr 2017||4,499|
|Canon 2000D||o||..||3.5/5||..||3.5/5||Feb 2018||449|
|Canon 4000D||o||..||3.5/5||..||3.5/5||Feb 2018||399|
|Canon 1200D||+||..||4/5||4/5||4.5/5||Feb 2014||449|
|Canon 650D||+ +||77/100||4.5/5||4.5/5||4.5/5||Jun 2012||849|
|Canon G1 X||+||76/100||4/5||4/5||4.5/5||Jan 2012||799|
|Canon SX50||+ +||72/100||4.5/5||..||4.5/5||Sep 2012||429|
|Canon 600D||o||77/100||4.5/5||5/5||4.5/5||Feb 2011||599|
|Canon 550D||+ +||77/100||4/5||5/5||4.5/5||Feb 2010||699|
|Canon 450D||+ +||+ +||4/5||5/5||4.5/5||Jan 2008||799|
|Canon 1000D||82/100||+ +||3.5/5||4/5||4.5/5||Jun 2008||449|
|Nikon Z6||..||..||4.5/5||4.5/5||5/5||Aug 2018||1,999|
|Sony A9 II||..||90/100||5/5||..||5/5||Oct 2019||4,499|
|Sony A7 III||+ +||89/100||5/5||5/5||5/5||Feb 2018||1,999|
|Sony A7R III||+ +||90/100||4.5/5||5/5||5/5||Oct 2017||3,199|
|Sony A7 II||+||82/100||4.5/5||5/5||5/5||Nov 2014||1,999|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
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.
- Canon 1100D vs Canon 30D
- Canon 1100D vs Canon 6D Mark II
- Canon 1100D vs Canon M6 Mark II
- Canon 1100D vs Sony A6000
- Canon 1100D vs Sony NEX-7
- Canon 1100D vs Sony RX1R
- Canon 7D II vs Sony A9
- Canon SX730 vs Sony A9 II
- Panasonic FZ300 vs Sony A9
- Panasonic TZ200 vs Sony A9 II
- Sony A7S II vs Sony A9
- Sony A9 vs Sony HX400V
Specifications: Canon 1100D vs Sony A9
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 Model||Canon 1100D||Sony A9|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Canon EF mount lenses||Sony E mount lenses|
|Launch Date||February 2011||April 2017|
|Launch Price||USD 449||USD 4,499|
|Sensor Specs||Canon 1100D||Sony A9|
|Sensor Format||APS-C Sensor||Full Frame Sensor|
|Sensor Size||22.0 x 14.7 mm||35.6 x 23.8 mm|
|Sensor Area||323.4 mm2||847.28 mm2|
|Sensor Diagonal||26.5 mm||42.8 mm|
|Sensor Resolution||12.2 Megapixels||24 Megapixels|
|Image Resolution||4272 x 2848 pixels||6000 x 4000 pixels|
|Pixel Pitch||5.15 μm||5.94 μm|
|Pixel Density||3.76 MP/cm2||2.83 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||720/30p Video||4K/30p Video|
|ISO Setting||100 - 6,400 ISO||100 - 51,200 ISO|
|ISO Boost||no Enhancement||50 - 204,800 ISO|
|Image Processor||DIGIC 4||BIONZ X|
|DXO Sensor Quality (score)||62||92|
|DXO Color Depth (bits)||21.9||24.9|
|DXO Dynamic Range (EV)||11.0||13.3|
|DXO Low Light (ISO)||755||3517|
|Screen Specs||Canon 1100D||Sony A9|
|Viewfinder Type||Optical viewfinder||Electronic viewfinder|
|Viewfinder Field of View||95%||100%|
|Viewfinder Resolution||3686k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||2.7inch||3.0inch|
|LCD Resolution||230k dots||1440k dots|
|LCD Attachment||Fixed screen||Tilting screen|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Canon 1100D||Sony A9|
|Focus System||Phase-detect AF||On-Sensor Phase-detect|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/8000s|
|Continuous Shooting||3 shutter flaps/s||20 shutter flaps/s|
|Shutter Life Expectancy||100 000 actuations||500 000 actuations|
|Electronic Shutter||no E-Shutter||up to 1/32000s|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||Build-in Flash||no On-Board Flash|
|Storage Medium||SDXC cards||MS or SDXC cards|
|Second Storage Option||Single card slot||Dual card slots|
|UHS card support||no||Single UHS-II|
|Connectivity Specs||Canon 1100D||Sony A9|
|Studio Flash||no PC Sync||PC Sync socket|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||micro HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Headphone Socket||no Headphone port||Headphone port|
|Wifi Support||no Wifi||Wifi built-in|
|Near-Field Communication||no NFC||NFC built-in|
|Bluetooth Support||no Bluetooth||Bluetooth built-in|
|Body Specs||Canon 1100D||Sony A9|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||700 shots per charge||650 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
130 x 100 x 78 mm
(5.1 x 3.9 x 3.1 in)
127 x 96 x 63 mm
(5.0 x 3.8 x 2.5 in)
|Camera Weight||495 g (17.5 oz)||673 g (23.7 oz)|
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