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Canon 40D vs T3

The Canon EOS 40D and the Canon EOS Rebel T3 (labelled Canon 1100D in some countries) are two digital cameras that were announced, respectively, in August 2007 and February 2011. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The 40D has a resolution of 10.1 megapixels, whereas the T3 provides 12.2 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Canon 40D   Canon T3
Canon 40D Canon T3
Digital single lens reflex Digital single lens reflex
Canon EF mount lenses Canon EF mount lenses
10.1 MP, APS-C Sensor 12.2 MP, APS-C Sensor
no Video 720/30p Video
ISO 100-1600 (100-3200) ISO 100-6400
Optical viewfinder Optical viewfinder
3.0" LCD, 230k dots 2.7" LCD, 230k dots
Fixed screen (not touch-sensitive) Fixed screen (not touch-sensitive)
6.5 shutter flaps per second 3 shutter flaps per second
750 shots per battery charge700 shots per battery charge
146 x 108 x 74 mm, 822 g 130 x 100 x 78 mm, 495 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 40D and the Canon EOS Rebel T3? 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: Canon 40D vs T3

The physical size and weight of the Canon 40D and the Canon T3 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 40D vs Canon T3
Compare 40D versus T3 top
Comparison 40D or T3 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon T3 is notably smaller (18 percent) than the Canon 40D. Moreover, the T3 is substantially lighter (40 percent) than the 40D. In this context, it is worth noting that neither the 40D nor the T3 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 compare the optics available in the Canon EF Lens Catalog.

Concerning battery life, the 40D gets 750 shots out of its BP-511A battery, while the T3 can take 700 images on a single charge of its LP-E10 power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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
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 40D» 5.7 in 4.3 in 2.9 in 29.0 oz 750 n Aug 2007 1,299- i Canon 40D
 
Canon T3« 5.1 in 3.9 in 3.1 in 17.5 oz 700 n Feb 2011 449- i Canon T3
 
Canon T5« » 5.1 in 3.9 in 3.1 in 16.9 oz 500 n Feb 2014 449- i Canon T5
 
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 T4i« » 5.2 in 3.9 in 3.1 in 20.3 oz 440 n Jun 2012 849- i Canon T4i
 
Canon T3i« » 5.2 in 3.9 in 3.1 in 20.1 oz 440 n Feb 2011 599- i Canon T3i
 
Canon 60D« » 5.7 in 4.2 in 3.1 in 26.6 oz 1100 Y Aug 2010 1,399- i Canon 60D
 
Canon 50D« » 5.7 in 4.3 in 2.9 in 29.0 oz 800 Y Aug 2008 1,299- i Canon 50D
 
Canon XS« » 5.0 in 3.9 in 2.6 in 17.7 oz 500 n Jun 2008 449- i Canon XS
 
Canon XSi« » 5.1 in 3.9 in 2.4 in 18.5 oz 500 n Jan 2008 799- i Canon XSi
 
Canon 30D« » 5.7 in 4.2 in 2.9 in 27.7 oz 750 n Feb 2006 1,399- i Canon 30D
 
Canon XTi« » 5.0 in 3.3 in 2.6 in 19.6 oz 370 n Aug 2006 799- i Canon XTi
 
Canon 20D« » 5.7 in 4.2 in 2.8 in 27.2 oz 700 n Aug 2004 1,499- i Canon 20D
 
Canon 10D« » 5.9 in 4.2 in 3.0 in 30.0 oz 500 n Feb 2003 1,999- i Canon 10D
 
Nikon D90« » 5.2 in 4.1 in 3.0 in 24.8 oz 850 n Aug 2008 1,299- i Nikon D90
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

Any camera decision will obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The T3 was launched at a markedly lower price (by 65 percent) than the 40D, 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 40D vs T3

The size of the sensor inside a digital camera is one of the key determinants 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.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the T3 is 3 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.

Technology-wise, the T3 uses a more advanced image processing engine (DIGIC 4) than the 40D (DIGIC 3), with benefits for noise reduction, color accuracy, and processing speed.

Canon 40D and Canon T3 sensor measures

Despite having a slightly smaller sensor, the T3 offers a higher resolution of 12.2 megapixels, compared with 10.1 MP of the 40D. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 5.15μm versus 5.73μm for the 40D). However, it should be noted that the T3 is much more recent (by 3 years and 5 months) than the 40D, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.

The resolution advantage of the Canon T3 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the T3 for good quality output (200 dots per inch) amounts to 21.4 x 14.2 inch or 54.3 x 36.2 cm, for very good quality (250 dpi) 17.1 x 11.4 inch or 43.4 x 28.9 cm, and for excellent quality (300 dpi) 14.2 x 9.5 inch or 36.2 x 24.1 cm. The corresponding values for the Canon 40D 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 Canon EOS 40D has a native sensitivity range from ISO 100 to ISO 1600, which can be extended to ISO 100-3200. The corresponding ISO settings for the Canon EOS Rebel T3 are ISO 100 to ISO 6400 (no boost).

40D versus T3 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"). The Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. 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
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
 
Canon 40D» APS-C 10.1 3888 2592-22.111.370364Canon 40D
 
Canon T3« APS-C 12.2 4272 2848720/30p21.911.075562Canon T3
 
Canon T5« » APS-C 17.9 5184 34561080/30p21.911.372463Canon T5
 
Canon G1 X« » 1.5-inch 14.2 4352 32641080/24p21.710.864460Canon G1 X
 
Canon T4i« » APS-C 17.9 5184 34561080/30p21.711.272262Canon T4i
 
Canon T3i« » APS-C 17.9 5184 34561080/30p22.111.579365Canon T3i
 
Canon 60D« » APS-C 17.9 5184 34561080/30p22.211.581366Canon 60D
 
Canon 50D« » APS-C 15.1 4752 3168-21.811.469663Canon 50D
 
Canon XS« » APS-C 10.1 3888 2592-----Canon XS
 
Canon XSi« » APS-C 12.2 4272 2848-21.910.869261Canon XSi
 
Canon 30D« » APS-C 8.2 3504 2336-21.510.873659Canon 30D
 
Canon XTi« » APS-C 10.1 3888 2592-22.111.066462Canon XTi
 
Canon 20D« » APS-C 8.2 3504 2336-21.911.072162Canon 20D
 
Canon 10D« » APS-C 6.3 3072 2048-21.110.957157Canon 10D
 
Nikon D90« » APS-C 12.2 4288 2848720/24p22.712.597773Nikon D90

Many modern cameras are not only capable of taking still images, but can also record movies. The T3 indeed provides for movie recording, while the 40D does not. The highest resolution format that the T3 can use is 720/30p.

 

Feature comparison: Canon 40D vs T3

Beyond body and sensor, cameras can and do differ across a range of features. The 40D and the T3 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 viewfinders of both cameras offer the same field of view (95%), but the viewfinder of the 40D has a higher magnification than the one of the T3 (0.59x vs 0.50x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The following table reports on some other key feature differences and similarities of the Canon 40D, the Canon T3, 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 40D»optical Y 3.0 230 fixed n 1/8000s 6.5 Y n Canon 40D
 
Canon T3«optical n 2.7 230 fixed n 1/4000s 3.0 Y n Canon T3
 
Canon T5« »optical n 3.0 460 fixed n 1/4000s 3.0 Y n Canon T5
 
Canon G1 X« »optical n 3.0 922 Swivel n 1/4000s 1.9 Y Y Canon G1 X
 
Canon T4i« »optical n 3.0 1040 swivel Y 1/4000s 5.0 Y n Canon T4i
 
Canon T3i« »optical n 3.0 1040 swivel n 1/4000s 3.7 Y n Canon T3i
 
Canon 60D« »optical Y 3.0 1040 swivel n 1/8000s 5.3 Y n Canon 60D
 
Canon 50D« »optical Y 3.0 920 fixed n 1/8000s 6.3 Y n Canon 50D
 
Canon XS« »optical n 2.5 230 fixed n 1/4000s 3.0 Y n Canon XS
 
Canon XSi« »optical n 3.0 230 fixed n 1/4000s 3.5 Y n Canon XSi
 
Canon 30D« »optical Y 2.5 230 fixed n 1/8000s 5.0 Y n Canon 30D
 
Canon XTi« »optical n 2.5 230 fixed n 1/4000s 3.0 Y n Canon XTi
 
Canon 20D« »optical Y 1.8 118 fixed n 1/8000s 5.0 Y n Canon 20D
 
Canon 10D« »optical Y 1.8 118 fixed n 1/4000s 3.0 Y n Canon 10D
 
Nikon D90« »optical Y 3.0 920 fixed n 1/4000s 4.5 Y n Nikon D90

One feature that is present on the 40D, but is missing on the T3 is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.

The 40D writes its imaging data to Compact Flash cards, while the T3 uses SDXC cards.

 

Connectivity comparison: Canon 40D vs T3

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 40D and Canon EOS Rebel T3 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
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Canon 40D»Y-----2.0---Canon 40D
 
Canon T3«Ystereomono--mini2.0---Canon T3
 
Canon T5« »Ymonomono--mini2.0---Canon T5
 
Canon G1 X« »Ystereomono--mini2.0---Canon G1 X
 
Canon T4i« »YstereomonoY-mini2.0---Canon T4i
 
Canon T3i« »YmonomonoY-mini2.0---Canon T3i
 
Canon 60D« »YmonomonoY-mini2.0---Canon 60D
 
Canon 50D« »Y----mini2.0---Canon 50D
 
Canon XS« »Y-----2.0---Canon XS
 
Canon XSi« »Y----mini2.0---Canon XSi
 
Canon 30D« »Y-----2.0---Canon 30D
 
Canon XTi« »Y-----2.0---Canon XTi
 
Canon 20D« »Y-----1.1---Canon 20D
 
Canon 10D« »Y-----1.1---Canon 10D
 
Nikon D90« »Ymonomono--mini2.0---Nikon D90

Studio photographers will appreciate that the Canon 40D (unlike the T3) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the 40D and the T3 have been discontinued, but can regularly be found used on eBay. The 40D was replaced by the Canon 50D, while the T3 was followed by the Canon T5. 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: Canon 40D vs T3

So what conclusions can be drawn? Which of the two cameras – the Canon 40D or the Canon T3 – 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 EOS 40D:

  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.59x vs 0.50x).
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.0" vs 2.7") for image review and settings control.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (6.5 vs 3 flaps/sec) to capture the decisive moment.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • More heavily discounted: Has been available for much longer (launched in August 2007).


Reasons to prefer the Canon EOS Rebel T3:

  • More detail: Has more megapixels (12.2 vs 10.1MP), which boosts linear resolution by 10%.
  • Better jpgs: Has a more modern image processing engine (DIGIC 4 vs DIGIC 3).
  • Broader imaging potential: Can capture not only stills but also 720/30p video.
  • More compact: Is smaller (130x100mm vs 146x108mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 327g or 40 percent) and is thus easier to take along.
  • More affordable: Was introduced into a lower priced category (65 percent cheaper at launch).
  • More modern: Reflects 3 years and 5 months of technical progress since the 40D launch.

If the number of relative strengths (bullet points above) is taken as a guide, the match-up finishes in a tie (7 points each). 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. 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.

40D 07:07 T3

How about other alternatives? Do the specifications of the Canon 40D and the Canon T3 place the cameras among the top in their class? Find out in the latest Best DSLR Camera listing 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 says little about, for example, the shooting experience and imaging performance of the 40D and the T3 in practical situations. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews: Canon 40D vs T3

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.

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 40D»+ ++ +4.5/5o4.5/5 Aug 2007 1,299- i Canon 40D
 
Canon T3«80/10069/1004/54/54.5/5 Feb 2011 449- i Canon T3
 
Canon T5« »+-4/54/54.5/5 Feb 2014 449- i Canon T5
 
Canon G1 X« »+76/1004/54/54.5/5 Jan 2012 799- i Canon G1 X
 
Canon T4i« »+ +77/1004.5/54.5/54.5/5 Jun 2012 849- i Canon T4i
 
Canon T3i« »o77/1004.5/55/54.5/5 Feb 2011 599- i Canon T3i
 
Canon 60D« »+79/1004/55/54.5/5 Aug 2010 1,399- i Canon 60D
 
Canon 50D« »+ ++ +4.5/55/54.5/5 Aug 2008 1,299- i Canon 50D
 
Canon XS« »82/100+ +3.5/54/54.5/5 Jun 2008 449- i Canon XS
 
Canon XSi« »+ ++ +4/55/54.5/5 Jan 2008 799- i Canon XSi
 
Canon 30D« »+ ++ +oo- Feb 2006 1,399- i Canon 30D
 
Canon XTi« »+ ++ +o4.5/54/5 Aug 2006 799- i Canon XTi
 
Canon 20D« »-+ +-o- Aug 2004 1,499- i Canon 20D
 
Canon 10D« »-+ +-o- Feb 2003 1,999- i Canon 10D
 
Nikon D90« »+ ++ +4/55/54.5/5 Aug 2008 1,299- i Nikon D90
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (-) not available.

The review scores listed above should be treated with care, 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. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

Canon 40D:
Check Ebay offers
Canon T3:
Check Ebay offers

Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Canon 40D vs Canon T3

    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 40D Canon T3
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Canon EF mount lenses Canon EF mount lenses
    Launch Date August 2007 February 2011
    Launch Price USD 1299 USD 449
    Sensor Specs Canon 40D Canon T3
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor APS-C Sensor
    Sensor Size 22.3 x 14.9 mm 22.0 x 14.7 mm
    Sensor Area 332.27 mm2 323.4 mm2
    Sensor Diagonal 26.8 mm 26.5 mm
    Crop Factor 1.6x 1.6x
    Sensor Resolution 10.1 Megapixels 12.2 Megapixels
    Image Resolution 3888 x 2592 pixels 4272 x 2848 pixels
    Pixel Pitch 5.73 μm 5.15 μm
    Pixel Density 3.03 MP/cm2 3.76 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability no Video 720/30p Video
    ISO Setting 100-1600 ISO 100-6400 ISO
    ISO Boost 100-3200 ISO no Enhancement
    Image Processor DIGIC 3 DIGIC 4
    DXO Sensor Quality (score) 64 62
    DXO Color Depth (bits) 22.1 21.9
    DXO Dynamic Range (EV) 11.3 11.0
    DXO Low Light (ISO) 703 755
    Screen Specs Canon 40D Canon T3
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 95% 95%
    Viewfinder Magnification 0.59x 0.50x
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.0 inch 2.7 inch
    LCD Resolution 230k dots 230k dots
    LCD Attachment Fixed screen Fixed screen
    Shooting Specs Canon 40D Canon T3
    Autofocus System Phase-detect AF Phase-detect AF
    Continuous Shooting 6.5 shutter flaps/s 3 shutter flaps/s
    Shutter Life Expectancy100 000 actuations100 000 actuations
    Fill Flash Build-in Flash Build-in Flash
    Storage Medium CF cards SDXC cards
    Second Storage Option Single card slot Single card slot
    Connectivity Specs Canon 40D Canon T3
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 2.0 USB 2.0
    HDMI Port no HDMI mini HDMI
    Wifi Support no Wifi no Wifi
    Body Specs Canon 40D Canon T3
    Battery Type BP-511A power pack LP-E10 power pack
    Battery Life (CIPA)750 shots per charge700 shots per charge
    Body Dimensions 146 x 108 x 74 mm
    (5.7 x 4.3 x 2.9 in)
    130 x 100 x 78 mm
    (5.1 x 3.9 x 3.1 in)
    Camera Weight 822 g (29.0 oz) 495 g (17.5 oz)

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