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Canon 1D Mark II vs T3i

The Canon EOS-1D Mark II and the Canon EOS Rebel T3i (labelled Canon 600D in some countries) are two digital cameras that were officially introduced, respectively, in January 2004 and February 2011. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-H (1D Mark II) and an APS-C (T3i) sensor. The 1D Mark II has a resolution of 8.2 megapixels, whereas the T3i provides 17.9 MP.

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

Headline Specifications
Canon 1D Mark II   Canon T3i
Canon 1D Mark II Canon T3i
Digital single lens reflex Digital single lens reflex
Canon EF mount lenses Canon EF mount lenses
8.2 MP, APS-H Sensor 17.9 MP, APS-C Sensor
no Video 1080/30p Video
ISO 100-1600 (50-3200) ISO 100-6400 (100-12800)
Optical viewfinder Optical viewfinder
2.0" LCD, 230k dots 3.0" LCD, 1040k dots
Fixed screen (not touch-sensitive) Swivel screen (not touch-sensitive)
8.3 shutter flaps per second 3.7 shutter flaps per second
Weathersealed bodyNot weather sealed
1200 shots per battery charge440 shots per battery charge
156 x 158 x 80 mm, 1535 g 133 x 100 x 80 mm, 570 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS-1D Mark II and the Canon EOS Rebel T3i? 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

The side-by-side display below illustrates the physical size and weight of the Canon 1D Mark II and the Canon T3i. 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.

Size Canon 1D Mark II vs Canon T3i
Compare 1D Mark II versus T3i top
Comparison 1D Mark II or T3i rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon T3i is considerably smaller (46 percent) than the Canon 1D Mark II. Moreover, the T3i is substantially lighter (63 percent) than the 1D Mark II. It is worth mentioning in this context that the 1D Mark II is splash and dust resistant, while the T3i 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 1D Mark II) will tend to go along with bigger and heavier lenses, while more compact options are available for the smaller-sensor camera (T3i). You can compare the optics available in the Canon EF Lens Catalog.

Concerning battery life, the 1D Mark II gets 1200 shots out of its NP-E3 battery, while the T3i can take 440 images on a single charge of its LP-E8 power pack. As can be seen in the images above, the 1D Mark II has a battery grip built in. This facilitates image-taking in portrait orientation and gives it additional battery power. In order to provide similar functionality for the T3i, Canon provides the BG-E8 vertical grip as an optional accessory (see here on eBay).

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 1D Mark II» 6.1 in 6.2 in 3.1 in 54.1 oz 1200 Y Jan 2004 4,499- i Canon 1D Mark II
 
Canon T3i« 5.2 in 3.9 in 3.1 in 20.1 oz 440 n Feb 2011 599- i Canon T3i
 
Canon 5DS« » 6.0 in 4.6 in 3.0 in 32.8 oz 700 Y Feb 2015 3,699 i i Canon 5DS
 
Canon 5DS R« » 6.0 in 4.6 in 3.0 in 32.8 oz 700 Y Feb 2015 3,699 i i Canon 5DS R
 
Canon T6s« » 5.2 in 4.0 in 3.1 in 19.9 oz 440 n Feb 2015 649- i Canon T6s
 
Canon T5i« » 5.2 in 3.9 in 3.1 in 20.5 oz 440 n Mar 2013 649- i Canon T5i
 
Canon M« » 4.3 in 2.6 in 1.3 in 10.5 oz 230 n Jul 2012 599- i Canon M
 
Canon T4i« » 5.2 in 3.9 in 3.1 in 20.3 oz 440 n Jun 2012 849- i Canon T4i
 
Canon T2i« » 5.1 in 3.9 in 2.4 in 18.7 oz 440 n Feb 2010 699- i Canon T2i
 
Canon 1D Mark IV« » 6.1 in 6.2 in 3.1 in 43.4 oz 1500 Y Oct 2009 4,999- i Canon 1D Mark IV
 
Canon 1D Mark III« » 6.1 in 6.2 in 3.1 in 40.7 oz 2200 Y Feb 2007 4,499- i Canon 1D Mark III
 
Canon 1Ds Mark III« » 5.9 in 6.3 in 3.1 in 48.9 oz 1800 Y Aug 2007 7,999- i Canon 1Ds Mark III
 
Canon 1D Mark II N« » 6.1 in 6.2 in 3.1 in 55.2 oz 1200 Y Aug 2005 3,999- i Canon 1D Mark II N
 
Canon 5D« » 6.0 in 4.4 in 3.0 in 31.6 oz 400 Y Aug 2005 3,299- i Canon 5D
 
Canon 1Ds Mark II« » 6.1 in 6.2 in 3.1 in 42.9 oz 1200 Y Sep 2004 7,999- i Canon 1Ds Mark II
 
Canon 1Ds« » 6.1 in 6.2 in 3.1 in 44.6 oz 600 Y Sep 2002 8,999- i Canon 1Ds
 
Canon 1D« » 6.1 in 6.2 in 3.1 in 55.9 oz 500 Y Sep 2001 6,499- i Canon 1D
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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The T3i was launched at a markedly lower price (by 87 percent) than the 1D Mark II, 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

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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its 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 1D Mark II features an APS-H sensor and the Canon T3i an APS-C sensor. The sensor area in the T3i is 39 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.3 and 1.6. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Technology-wise, the T3i uses a more advanced image processing engine (DIGIC 4) than the 1D Mark II (DIGIC II), with benefits for noise reduction, color accuracy, and processing speed.

Canon 1D Mark II and Canon T3i sensor measures

Despite having a smaller sensor, the T3i offers a higher resolution of 17.9 megapixels, compared with 8.2 MP of the 1D Mark II. 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 4.31μm versus 8.17μm for the 1D Mark II). However, it should be noted that the T3i is much more recent (by 7 years) than the 1D Mark II, 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 T3i implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the T3i for good quality output (200 dots per inch) amounts to 25.9 x 17.3 inch or 65.8 x 43.9 cm, for very good quality (250 dpi) 20.7 x 13.8 inch or 52.7 x 35.1 cm, and for excellent quality (300 dpi) 17.3 x 11.5 inch or 43.9 x 29.3 cm. The corresponding values for the Canon 1D Mark II are 17.5 x 11.7 inch or 44.5 x 29.7 cm for good quality, 14 x 9.3 inch or 35.6 x 23.7 cm for very good quality, and 11.7 x 7.8 inch or 29.7 x 19.8 cm for excellent quality prints.

The Canon EOS-1D Mark II has a native sensitivity range from ISO 100 to ISO 1600, which can be extended to ISO 50-3200. The corresponding ISO settings for the Canon EOS Rebel T3i are ISO 100 to ISO 6400, with the possibility to increase the ISO range to 100-12800.

1D Mark II versus T3i 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 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 1D Mark II» APS-H 8.2 3504 2336-22.311.1100366Canon 1D Mark II
 
Canon T3i« APS-C 17.9 5184 34561080/30p22.111.579365Canon T3i
 
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 T6s« » APS-C 24.0 6000 40001080/30p22.612.091570Canon T6s
 
Canon T5i« » APS-C 17.9 5184 34561080/30p21.711.268161Canon T5i
 
Canon M« » APS-C 17.9 5184 34561080/30p22.111.282765Canon M
 
Canon T4i« » APS-C 17.9 5184 34561080/30p21.711.272262Canon T4i
 
Canon T2i« » APS-C 17.9 5184 34561080/30p22.111.578466Canon T2i
 
Canon 1D Mark IV« » APS-H 16.0 4896 32641080/30p22.812.0132074Canon 1D Mark IV
 
Canon 1D Mark III« » APS-H 10.1 3888 2592-22.711.7107871Canon 1D Mark III
 
Canon 1Ds Mark III« » Full Frame 21.0 5616 3744-24.012.0166380Canon 1Ds Mark III
 
Canon 1D Mark II N« » APS-H 8.2 3504 2336-22.311.297566Canon 1D Mark II N
 
Canon 5D« » Full Frame 12.7 4368 2912-22.911.1136871Canon 5D
 
Canon 1Ds Mark II« » Full Frame 16.6 4992 3328-23.311.3148074Canon 1Ds Mark II
 
Canon 1Ds« » Full Frame 11.0 4064 2704-21.811.095463Canon 1Ds
 
Canon 1D« » APS-H 4.1 2496 1662-----Canon 1D

Many modern cameras cannot only take still pictures, but also record videos. The T3i indeed provides for movie recording, while the 1D Mark II does not. The highest resolution format that the T3i can use is 1080/30p.

 

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The 1D Mark II and the T3i 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 1D Mark II offers a wider field of view (100%) than the one in the T3i (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the 1D Mark II has a higher magnification (0.55x vs 0.53x), 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 1D Mark II and Canon T3i 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 1D Mark II»optical Y 2.0 230 fixed n 1/8000s 8.3 n n Canon 1D Mark II
 
Canon T3i«optical n 3.0 1040 swivel n 1/4000s 3.7 Y n Canon T3i
 
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 T6s« »optical Y 3.0 1040 swivel Y 1/4000s 5.0 Y n Canon T6s
 
Canon T5i« »optical n 3.0 1040 swivel Y 1/4000s 5.0 Y n Canon T5i
 
Canon M« »- n 3.0 1040 fixed Y 1/4000s 4.3 n n Canon M
 
Canon T4i« »optical n 3.0 1040 swivel Y 1/4000s 5.0 Y n Canon T4i
 
Canon T2i« »optical n 3.0 1040 fixed n 1/4000s 3.7 Y n Canon T2i
 
Canon 1D Mark IV« »optical Y 3.0 920 fixed n 1/8000s 10.0 n n Canon 1D Mark IV
 
Canon 1D Mark III« »optical Y 3.0 230 fixed n 1/8000s 10.0 n n Canon 1D Mark III
 
Canon 1Ds Mark III« »optical Y 3.0 230 fixed n 1/8000s 5.0 n n Canon 1Ds Mark III
 
Canon 1D Mark II N« »optical Y 2.5 230 fixed n 1/8000s 8.5 n n Canon 1D Mark II N
 
Canon 5D« »optical Y 2.5 230 fixed n 1/8000s 3.0 n n Canon 5D
 
Canon 1Ds Mark II« »optical Y 2.0 230 fixed n 1/8000s 4.0 n n Canon 1Ds Mark II
 
Canon 1Ds« »optical Y 2.0 120 fixed n 1/8000s 3.0 n n Canon 1Ds
 
Canon 1D« »optical Y 2.0 120 fixed n 1/16000s 8.0 n n Canon 1D

One feature that is present on the 1D Mark II, but is missing on the T3i 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 T3i has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the 1D Mark II does not have a selfie-screen.

The 1D Mark II writes its imaging data to Compact Flash or SD cards, while the T3i uses SDXC cards. The 1D Mark II features dual card slots, which can be very useful in case a memory card fails. In contrast, the T3i only has one slot.

 

Connectivity comparison

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-1D Mark II and Canon EOS Rebel T3i 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 1D Mark II»Y-----1.1---Canon 1D Mark II
 
Canon T3i«YmonomonoY-mini2.0---Canon T3i
 
Canon 5DS« »YmonomonoY-mini3.0---Canon 5DS
 
Canon 5DS R« »YmonomonoY-mini3.0---Canon 5DS R
 
Canon T6s« »YstereomonoY-mini2.0YY-Canon T6s
 
Canon T5i« »YstereomonoY-mini2.0---Canon T5i
 
Canon M« »YstereomonoY-mini2.0---Canon M
 
Canon T4i« »YstereomonoY-mini2.0---Canon T4i
 
Canon T2i« »Ystereo-Y-mini2.0---Canon T2i
 
Canon 1D Mark IV« »Ystereo-Y-mini2.0---Canon 1D Mark IV
 
Canon 1D Mark III« »Y-----2.0---Canon 1D Mark III
 
Canon 1Ds Mark III« »Y-----2.0---Canon 1Ds Mark III
 
Canon 1D Mark II N« »Y-----1.1---Canon 1D Mark II N
 
Canon 5D« »Y-----2.0---Canon 5D
 
Canon 1Ds Mark II« »Y-----2.0---Canon 1Ds Mark II
 
Canon 1Ds« »Y-----FW---Canon 1Ds
 
Canon 1D« »Y-----FW---Canon 1D

Studio photographers will appreciate that the Canon 1D Mark II (unlike the T3i) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the 1D Mark II and the T3i have been discontinued, but can regularly be found used on eBay. The 1D Mark II was replaced by the Canon 1D Mark II N, while the T3i was followed by the Canon T4i. 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

So how do things add up? Is there a clear favorite between the Canon 1D Mark II and the Canon T3i? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.


Reasons to prefer the Canon EOS-1D Mark II:

  • Better low-light sensitivity: Requires less light for good images (0.3 stops ISO advantage).
  • 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 (0.55x vs 0.53x).
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (8.3 vs 3.7 flaps/sec) to capture the decisive moment.
  • More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
  • Longer lasting: Can take more shots (1200 versus 440) 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 heavily discounted: Has been available for much longer (launched in January 2004).


Advantages of the Canon EOS Rebel T3i:

  • More detail: Has more megapixels (17.9 vs 8.2MP), which boosts linear resolution by 48%.
  • Better jpgs: Has a more modern image processing engine (DIGIC 4 vs DIGIC II).
  • Broader imaging potential: Can capture not only stills but also 1080/30p video.
  • Larger screen: Has a bigger rear LCD (3.0" vs 2.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 230k dots).
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • More compact: Is smaller (133x100mm vs 156x158mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 965g or 63 percent) and is thus easier to take along.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • Faster data transfer: Supports a more advanced USB protocol (2.0 vs 1.1).
  • More affordable: Was introduced into a lower priced category (87 percent cheaper at launch).
  • More modern: Reflects 7 years of technical progress since the 1D Mark II launch.

If the number of relative strengths (bullet points above) is taken as a guide, the T3i comes out slightly ahead of the 1D Mark II (13 : 12 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. 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.

1D Mark II 12:13 T3i

How about other alternatives? Do the specifications of the Canon 1D Mark II and the Canon T3i 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 remains incomplete and does no justice, for example, to the way the 1D Mark II or the T3i 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.

Expert reviews

This is where reviews by experts come in. The following table reports the overall ratings of the cameras as published by some of the major 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 1D Mark II»-+ +-o- Jan 2004 4,499- i Canon 1D Mark II
 
Canon T3i«o77/1004.5/55/54.5/5 Feb 2011 599- i Canon T3i
 
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 T6s« »+77/1004.5/54.5/54.5/5 Feb 2015 649- i Canon T6s
 
Canon T5i« »-76/1004.5/54.5/54.5/5 Mar 2013 649- i Canon T5i
 
Canon M« »+-4/53.5/54/5 Jul 2012 599- i Canon M
 
Canon T4i« »+ +77/1004.5/54.5/54.5/5 Jun 2012 849- i Canon T4i
 
Canon T2i« »+ +77/1004/55/54.5/5 Feb 2010 699- i Canon T2i
 
Canon 1D Mark IV« »-89/100-5/5- Oct 2009 4,999- i Canon 1D Mark IV
 
Canon 1D Mark III« »---o- Feb 2007 4,499- i Canon 1D Mark III
 
Canon 1Ds Mark III« »-+ +4.5/5-- Aug 2007 7,999- i Canon 1Ds Mark III
 
Canon 1D Mark II N« »----- Aug 2005 3,999- i Canon 1D Mark II N
 
Canon 5D« »88/100+ +oo- Aug 2005 3,299- i Canon 5D
 
Canon 1Ds Mark II« »-+ +--- Sep 2004 7,999- i Canon 1Ds Mark II
 
Canon 1Ds« »-+ +--- Sep 2002 8,999- i Canon 1Ds
 
Canon 1D« »-+ +--- Sep 2001 6,499- i Canon 1D
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. 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.

Canon 1D Mark II:
Check Ebay offers
Canon T3i:
Check Ebay offers

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. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Canon 1D Mark II vs Canon T3i

    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 1D Mark II Canon T3i
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Canon EF mount lenses Canon EF mount lenses
    Launch Date January 2004 February 2011
    Launch Price USD 4499 USD 599
    Sensor Specs Canon 1D Mark II Canon T3i
    Sensor Technology CMOS CMOS
    Sensor Format APS-H Sensor APS-C Sensor
    Sensor Size 28.7 x 19.1 mm 22.3 x 14.9 mm
    Sensor Area 548.17 mm2 332.27 mm2
    Sensor Diagonal 34.5 mm 26.8 mm
    Crop Factor 1.3x 1.6x
    Sensor Resolution 8.2 Megapixels 17.9 Megapixels
    Image Resolution 3504 x 2336 pixels 5184 x 3456 pixels
    Pixel Pitch 8.17 μm 4.31 μm
    Pixel Density 1.49 MP/cm2 5.39 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability no Video 1080/30p Video
    ISO Setting 100-1600 ISO 100-6400 ISO
    ISO Boost 50-3200 ISO 100-12800 ISO
    Image Processor DIGIC II DIGIC 4
    DXO Sensor Quality (score) 66 65
    DXO Color Depth (bits) 22.3 22.1
    DXO Dynamic Range (EV) 11.1 11.5
    DXO Low Light (ISO) 1003 793
    Screen Specs Canon 1D Mark II Canon T3i
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 100% 95%
    Viewfinder Magnification 0.55x 0.53x
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View
    Rear LCD Size 2.0 inch 3.0 inch
    LCD Resolution 230k dots 1040k dots
    LCD Attachment Fixed screen Swivel screen
    Shooting Specs Canon 1D Mark II Canon T3i
    Autofocus System Phase-detect AF Phase-detect AF
    Continuous Shooting 8.3 shutter flaps/s 3.7 shutter flaps/s
    Fill Flash no On-Board Flash Build-in Flash
    Storage Medium CF or SD cards SDXC cards
    Second Storage Option Dual card slots Single card slot
    UHS card support no no
    Connectivity Specs Canon 1D Mark II Canon T3i
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 1.1 USB 2.0
    HDMI Port no HDMI mini HDMI
    Microphone Port no MIC socket External MIC port
    Wifi Support no Wifi no Wifi
    Body Specs Canon 1D Mark II Canon T3i
    Environmental SealingWeathersealed bodyNot weather sealed
    Battery Type NP-E3 LP-E8
    Battery Life (CIPA)1200 shots per charge440 shots per charge
    Body Dimensions 156 x 158 x 80 mm
    (6.1 x 6.2 x 3.1 in)
    133 x 100 x 80 mm
    (5.2 x 3.9 x 3.1 in)
    Camera Weight 1535 g (54.1 oz) 570 g (20.1 oz)

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