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Canon 5D Mark III vs T1i

The Canon EOS 5D Mark III and the Canon EOS Rebel T1i (labelled Canon 500D in some countries) are two digital cameras that were announced, respectively, in March 2012 and March 2009. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (5D Mark III) and an APS-C (T1i) sensor. The 5D Mark III has a resolution of 22.1 megapixels, whereas the T1i provides 15.1 MP.

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

Headline Specifications
Canon 5D Mark III   Canon T1i
Canon 5D Mark III Canon T1i
Digital single lens reflex Digital single lens reflex
Canon EF mount lenses Canon EF mount lenses
22.1 MP, Full Frame Sensor 15.1 MP, APS-C Sensor
1080/30p Video 1080/20p Video
ISO 100-25600 (50-102400) ISO 100-6400 (100-12800)
Optical viewfinder Optical viewfinder
3.2" LCD, 1040k dots 3.0" LCD, 920k dots
Fixed screen (not touch-sensitive) Fixed screen (not touch-sensitive)
6 shutter flaps per second 3.4 shutter flaps per second
Weathersealed bodyNot weather sealed
950 shots per battery charge400 shots per battery charge
152 x 116 x 76 mm, 950 g 129 x 98 x 62 mm, 520 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 5D Mark III and the Canon EOS Rebel T1i? 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 5D Mark III vs T1i

The side-by-side display below illustrates the physical size and weight of the Canon 5D Mark III and the Canon T1i. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth measures are rounded to the nearest millimeter.

Size Canon 5D Mark III vs Canon T1i
Compare 5D Mark III versus T1i top
Comparison 5D Mark III or T1i rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon T1i is notably smaller (28 percent) than the Canon 5D Mark III. Moreover, the T1i is substantially lighter (45 percent) than the 5D Mark III. It is worth mentioning in this context that the 5D Mark III is splash and dust resistant, while the T1i 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 (as in the 5D Mark III) will tend to go along with bigger and heavier lenses, while more compact options are available for the smaller-sensor camera (T1i). You can compare the optics available in the Canon EF Lens Catalog.

Concerning battery life, the 5D Mark III gets 950 shots out of its LP-E6 battery, while the T1i can take 400 images on a single charge of its LP-E5 power pack.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. In case you want to display and compare another camera duo, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.

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 5D Mark III» 152 mm 116 mm 76 mm 950 g 950 Y Mar 2012 3,499- i Canon 5D Mark III
 
Canon T1i« 129 mm 98 mm 62 mm 520 g 400 n Mar 2009 799- i Canon T1i
 
Canon 6D Mark II« » 144 mm 111 mm 75 mm 765 g 1200 Y Jun 2017 1,999 i i Canon 6D Mark II
 
Canon 1D X Mark II« » 158 mm 168 mm 83 mm 1530 g 1210 Y Feb 2016 5,999 i i Canon 1D X Mark II
 
Canon 5D Mark IV« » 151 mm 116 mm 76 mm 890 g 900 Y Aug 2016 3,499 i i Canon 5D Mark IV
 
Canon 5DS« » 152 mm 116 mm 76 mm 930 g 700 Y Feb 2015 3,699 i i Canon 5DS
 
Canon 5DS R« » 152 mm 116 mm 76 mm 930 g 700 Y Feb 2015 3,699 i i Canon 5DS R
 
Canon 7D II« » 149 mm 112 mm 78 mm 910 g 670 Y Sep 2014 1,799 i i Canon 7D II
 
Canon T5« » 130 mm 100 mm 78 mm 480 g 500 n Feb 2014 449- i Canon T5
 
Canon 70D« » 139 mm 104 mm 79 mm 755 g 920 Y Jul 2013 1,199- i Canon 70D
 
Canon 6D« » 145 mm 111 mm 71 mm 770 g 1090 Y Sep 2012 2,099- i Canon 6D
 
Canon T4i« » 133 mm 100 mm 79 mm 575 g 440 n Jun 2012 849- i Canon T4i
 
Canon T3i« » 133 mm 100 mm 80 mm 570 g 440 n Feb 2011 599- i Canon T3i
 
Canon T2i« » 129 mm 98 mm 62 mm 530 g 440 n Feb 2010 699- i Canon T2i
 
Canon 5D Mark II« » 152 mm 114 mm 75 mm 850 g 850 Y Sep 2008 3,499- i Canon 5D Mark II
 
Canon XSi« » 129 mm 98 mm 62 mm 524 g 500 n Jan 2008 799- i Canon XSi
 
Canon 5D« » 152 mm 113 mm 75 mm 895 g 400 Y Aug 2005 3,299- i Canon 5D
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. 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 T1i was launched at a markedly lower price (by 77 percent) than the 5D Mark 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.

 

Sensor comparison: Canon 5D Mark III vs T1i

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 5D Mark III features a full frame sensor and the Canon T1i an APS-C sensor. The sensor area in the T1i is 62 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 1.6. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

In terms of chip-set technology, the 5D Mark III uses a more advanced image processing engine (DIGIC 5+) than the T1i (DIGIC 4), with benefits for noise reduction, color accuracy, and processing speed.

Canon 5D Mark III and Canon T1i sensor measures

With 22.1MP, the 5D Mark III offers a higher resolution than the T1i (15.1MP), but the 5D Mark III nevertheless has larger individual pixels (pixel pitch of 6.25μm versus 4.69μm for the T1i) due to its larger sensor. Moreover, the 5D Mark III is a much more recent model (by 2 years and 11 months) than the T1i, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.

The resolution advantage of the Canon 5D Mark III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 5D Mark III for good quality output (200 dots per inch) amounts to 28.8 x 19.2 inch or 73.2 x 48.8 cm, for very good quality (250 dpi) 23 x 15.4 inch or 58.5 x 39 cm, and for excellent quality (300 dpi) 19.2 x 12.8 inch or 48.8 x 32.5 cm. The corresponding values for the Canon T1i are 23.8 x 15.8 inch or 60.4 x 40.2 cm for good quality, 19 x 12.7 inch or 48.3 x 32.2 cm for very good quality, and 15.8 x 10.6 inch or 40.2 x 26.8 cm for excellent quality prints.

The Canon EOS 5D Mark III has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 50-102400. The corresponding ISO settings for the Canon EOS Rebel T1i are ISO 100 to ISO 6400, with the possibility to increase the ISO range to 100-12800.

5D Mark III versus T1i 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 review, the 5D Mark III provides substantially higher image quality than the T1i, with an overall score that is 18 points higher. This advantage is based on 2.3 bits higher color depth, 0.2 EV in additional dynamic range, and 1.8 stops in additional 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
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
 
Canon 5D Mark III» Full Frame 22.1 5760 38401080/30p24.011.7229381Canon 5D Mark III
 
Canon T1i« APS-C 15.1 4752 31681080/20p21.711.566363Canon T1i
 
Canon 6D Mark II« » Full Frame 26.0 6240 41601080/60p24.411.9286285Canon 6D Mark II
 
Canon 1D X Mark II« » Full Frame 20.0 5472 36484K/60p24.113.5320788Canon 1D X Mark II
 
Canon 5D Mark IV« » Full Frame 30.1 6720 44804K/30p24.813.6299591Canon 5D Mark IV
 
Canon 5DS« » Full Frame 50.3 8688 57921080/30p24.712.4238187Canon 5DS
 
Canon 5DS R« » Full Frame 50.3 8688 57921080/30p24.612.4230886Canon 5DS R
 
Canon 7D II« » APS-C 20.0 5472 36481080/60p22.411.8108270Canon 7D II
 
Canon T5« » APS-C 17.9 5184 34561080/30p21.911.372463Canon T5
 
Canon 70D« » APS-C 20.0 5472 36481080/30p22.511.692668Canon 70D
 
Canon 6D« » Full Frame 20.0 5472 36481080/30p23.812.1234082Canon 6D
 
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 T2i« » APS-C 17.9 5184 34561080/30p22.111.578466Canon T2i
 
Canon 5D Mark II« » Full Frame 21.0 5616 37441080/30p23.711.9181579Canon 5D Mark II
 
Canon XSi« » APS-C 12.2 4272 2848-21.910.869261Canon XSi
 
Canon 5D« » Full Frame 12.7 4368 2912-22.911.1136871Canon 5D

Many modern cameras cannot only take still pictures, but also record videos. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the 5D Mark III provides a higher frame rate than the T1i. It can shoot video footage at 1080/30p, while the T1i is limited to 1080/20p.

 

Feature comparison: Canon 5D Mark III vs T1i

Apart from body and sensor, cameras can and do differ across a range of features. The 5D Mark III and the T1i 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 viewfinder in the 5D Mark III offers a wider field of view (100%) than the one in the T1i (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the 5D Mark III has a higher magnification (0.71x vs 0.54x), 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 5D Mark III and Canon T1i in connection with corresponding information for a sample of similar 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 5D Mark III»optical Y 3.2 1040 fixed n 1/8000s 6.0 n n Canon 5D Mark III
 
Canon T1i«optical n 3.0 920 fixed n 1/4000s 3.4 Y n Canon T1i
 
Canon 6D Mark II« »optical Y 3.0 1040 swivel Y 1/4000s 6.5 n n Canon 6D Mark II
 
Canon 1D X Mark II« »optical Y 3.2 1620 fixed Y 1/8000s 16.0 n n Canon 1D X Mark II
 
Canon 5D Mark IV« »optical Y 3.2 1620 fixed Y 1/8000s 7.0 n n Canon 5D Mark IV
 
Canon 5DS« »optical Y 3.2 1040 fixed n 1/8000s 5.0 n n Canon 5DS
 
Canon 5DS R« »optical Y 3.2 1040 fixed n 1/8000s 5.0 n n Canon 5DS R
 
Canon 7D II« »optical Y 3.0 1040 fixed n 1/8000s 10.0 Y n Canon 7D II
 
Canon T5« »optical n 3.0 460 fixed n 1/4000s 3.0 Y n Canon T5
 
Canon 70D« »optical Y 3.0 1040 swivel Y 1/8000s 7.0 Y n Canon 70D
 
Canon 6D« »optical Y 3.0 1040 fixed n 1/4000s 4.5 n n Canon 6D
 
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 T2i« »optical n 3.0 1040 fixed n 1/4000s 3.7 Y n Canon T2i
 
Canon 5D Mark II« »optical Y 3.0 920 fixed n 1/8000s 3.9 n n Canon 5D Mark II
 
Canon XSi« »optical n 3.0 230 fixed n 1/4000s 3.5 Y n Canon XSi
 
Canon 5D« »optical Y 2.5 230 fixed n 1/8000s 3.0 n n Canon 5D

One feature that is present on the 5D Mark III, but is missing on the T1i 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 5D Mark III writes its imaging data to Compact Flash or SDXC cards, while the T1i uses SDHC cards. The 5D Mark III features dual card slots, which can be very useful in case a memory card fails. In contrast, the T1i only has one slot.

 

Connectivity comparison: Canon 5D Mark III vs T1i

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 5D Mark III and Canon EOS Rebel T1i 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 5D Mark III»YmonomonoYYmini2.0---Canon 5D Mark III
 
Canon T1i«Ymonomono--mini2.0---Canon T1i
 
Canon 6D Mark II« »YstereomonoY-mini2.0YYYCanon 6D Mark II
 
Canon 1D X Mark II« »YmonomonoYYmini3.0---Canon 1D X Mark II
 
Canon 5D Mark IV« »YmonomonoYYmini3.0YY-Canon 5D Mark IV
 
Canon 5DS« »YmonomonoY-mini3.0---Canon 5DS
 
Canon 5DS R« »YmonomonoY-mini3.0---Canon 5DS R
 
Canon 7D II« »YstereomonoYYmini3.0---Canon 7D II
 
Canon T5« »Ymonomono--mini2.0---Canon T5
 
Canon 70D« »YstereomonoY-mini2.0Y--Canon 70D
 
Canon 6D« »YmonomonoY-mini2.0Y--Canon 6D
 
Canon T4i« »YstereomonoY-mini2.0---Canon T4i
 
Canon T3i« »YmonomonoY-mini2.0---Canon T3i
 
Canon T2i« »Ystereo-Y-mini2.0---Canon T2i
 
Canon 5D Mark II« »YmonomonoY-mini2.0---Canon 5D Mark II
 
Canon XSi« »Y----mini2.0---Canon XSi
 
Canon 5D« »Y-----2.0---Canon 5D

It is notable that the 5D Mark III has a microphone port, which is missing on the T1i. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.

Studio photographers will appreciate that the Canon 5D Mark III (unlike the T1i) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the 5D Mark III and the T1i have been discontinued, but can regularly be found used on eBay. The T1i was replaced by the Canon T2i, while the 5D Mark III was followed by the Canon 5D Mark IV. 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 5D Mark III vs T1i

So how do things add up? Is there a clear favorite between the Canon 5D Mark III and the Canon T1i? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.


Reasons to prefer the Canon EOS 5D Mark III:

  • More detail: Offers more megapixels (22.1 vs 15.1MP) with a 21% higher linear resolution.
  • Better image quality: Scores substantially higher (18 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (2.3 bits more color depth).
  • Better low-light sensitivity: Requires less light for good images (1.8 stops ISO advantage).
  • Better jpgs: Has a more modern image processing engine (DIGIC 5+ vs DIGIC 4).
  • Better video: Provides higher movie framerates (1080/30p versus 1080/20p).
  • 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 complete view: Has a viewfinder with a larger field of view (100% vs 95%).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.71x vs 0.54x).
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 920k dots).
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (6 vs 3.4 flaps/sec) to capture the decisive moment.
  • Longer lasting: Can take more shots (950 versus 400) on a single battery charge.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • 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.
  • More modern: Reflects 2 years and 11 months of technical progress since the T1i launch.


Advantages of the Canon EOS Rebel T1i:

  • More compact: Is smaller (129x98mm vs 152x116mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 430g or 45 percent) and is thus easier to take along.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • More affordable: Was introduced into a lower priced category (77 percent cheaper at launch).
  • More heavily discounted: Has been around for much longer (launched in March 2009).

If the count of relative strengths (bullet points above) is taken as a measure, the 5D Mark III is the clear winner of the match-up (20 : 5 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. 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.

5D Mark III 20:05 T1i

How about other alternatives? Do the specifications of the Canon 5D Mark III and the Canon T1i 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the 5D Mark III or the T1i. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews: Canon 5D Mark III vs T1i

This is where reviews by experts come in. 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 5D Mark III»+ +82/1004.5/55/54.5/5 Mar 2012 3,499- i Canon 5D Mark III
 
Canon T1i«+ +74/1004.5/55/54.5/5 Mar 2009 799- i Canon T1i
 
Canon 6D Mark II« »+80/1004.5/54/54/5 Jun 2017 1,999 i i Canon 6D Mark II
 
Canon 1D X Mark II« »-89/1004.5/55/54.5/5 Feb 2016 5,999 i i Canon 1D X Mark II
 
Canon 5D Mark IV« »+ +87/1004.5/55/54.5/5 Aug 2016 3,499 i i Canon 5D Mark IV
 
Canon 5DS« »+83/1004.5/55/54.5/5 Feb 2015 3,699 i i Canon 5DS
 
Canon 5DS R« »+83/1005/55/54.5/5 Feb 2015 3,699 i i Canon 5DS R
 
Canon 7D II« »+84/1004/55/54.5/5 Sep 2014 1,799 i i Canon 7D II
 
Canon T5« »+-4/54/54.5/5 Feb 2014 449- i Canon T5
 
Canon 70D« »+ +83/1004.5/54.5/55/5 Jul 2013 1,199- i Canon 70D
 
Canon 6D« »+ +83/1004.5/54.5/54.5/5 Sep 2012 2,099- i Canon 6D
 
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 T2i« »+ +77/1004/55/54.5/5 Feb 2010 699- i Canon T2i
 
Canon 5D Mark II« »91/10079/1004/55/5- Sep 2008 3,499- i Canon 5D Mark II
 
Canon XSi« »+ ++ +4/55/54.5/5 Jan 2008 799- i Canon XSi
 
Canon 5D« »88/100+ +oo- Aug 2005 3,299- i Canon 5D
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (-) not available.

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. 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. Also, please note that some of the review sites have changed their methodology and reporting over time.

Canon 5D Mark III:
Check Ebay offers
Canon T1i:
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. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications: Canon 5D Mark III vs Canon T1i

    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 5D Mark III Canon T1i
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Canon EF mount lenses Canon EF mount lenses
    Launch Date March 2012 March 2009
    Launch Price USD 3499 USD 799
    Sensor Specs Canon 5D Mark III Canon T1i
    Sensor Technology CMOS CMOS
    Sensor Format Full Frame Sensor APS-C Sensor
    Sensor Size 36.0 x 24.0 mm 22.3 x 14.9 mm
    Sensor Area 864 mm2 332.27 mm2
    Sensor Diagonal 43.3 mm 26.8 mm
    Crop Factor 1.0x 1.6x
    Sensor Resolution 22.1 Megapixels 15.1 Megapixels
    Image Resolution 5760 x 3840 pixels 4752 x 3168 pixels
    Pixel Pitch 6.25 μm 4.69 μm
    Pixel Density 2.56 MP/cm2 4.53 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/30p Video 1080/20p Video
    ISO Setting 100-25600 ISO 100-6400 ISO
    ISO Boost 50-102400 ISO 100-12800 ISO
    Image Processor DIGIC 5+ DIGIC 4
    DXO Sensor Quality (score) 81 63
    DXO Color Depth (bits) 24.0 21.7
    DXO Dynamic Range (EV) 11.7 11.5
    DXO Low Light (ISO) 2293 663
    Screen Specs Canon 5D Mark III Canon T1i
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 100% 95%
    Viewfinder Magnification 0.71x 0.54x
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.2 inch 3.0 inch
    LCD Resolution 1040k dots 920k dots
    LCD Attachment Fixed screen Fixed screen
    Shooting Specs Canon 5D Mark III Canon T1i
    Autofocus System Phase-detect AF Phase-detect AF
    Continuous Shooting 6 shutter flaps/s 3.4 shutter flaps/s
    Shutter Life Expectancy150 000 actuations100 000 actuations
    Fill Flash no On-Board Flash Build-in Flash
    Storage Medium CF or SDXC cards SDHC cards
    Second Storage Option Dual card slots Single card slot
    UHS card support no no
    Connectivity Specs Canon 5D Mark III Canon T1i
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI mini HDMI
    Microphone Port External MIC port no MIC socket
    Headphone Socket Headphone port no Headphone port
    Wifi Support no Wifi no Wifi
    Body Specs Canon 5D Mark III Canon T1i
    Environmental SealingWeathersealed bodyNot weather sealed
    Battery Type LP-E6 power pack LP-E5 power pack
    Battery Life (CIPA)950 shots per charge400 shots per charge
    Body Dimensions 152 x 116 x 76 mm
    (6.0 x 4.6 x 3.0 in)
    129 x 98 x 62 mm
    (5.1 x 3.9 x 2.4 in)
    Camera Weight 950 g (33.5 oz) 520 g (18.3 oz)

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