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Canon 1Ds Mark III vs 20D

The Canon EOS-1Ds Mark III and the Canon EOS 20D are two digital cameras that were announced, respectively, in August 2007 and August 2004. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (1Ds Mark III) and an APS-C (20D) sensor. The 1Ds Mark III has a resolution of 21 megapixels, whereas the 20D provides 8.2 MP.

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

Headline Specifications
Canon 1Ds Mark III   Canon 20D
Canon 1Ds Mark III Canon 20D
Digital single lens reflex Digital single lens reflex
Canon EF mount lenses Canon EF mount lenses
21 MP, Full Frame Sensor 8.2 MP, APS-C Sensor
no Video no Video
ISO 100-1600 (50-3200) ISO 100-1600 (100-3200)
Optical viewfinder Optical viewfinder
3.0" LCD, 230k dots 1.8" LCD, 118k dots
Fixed screen (not touch-sensitive) Fixed screen (not touch-sensitive)
5 shutter flaps per second 5 shutter flaps per second
Weathersealed bodyNot weather sealed
1800 shots per battery charge700 shots per battery charge
150 x 160 x 80 mm, 1385 g 144 x 106 x 72 mm, 770 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS-1Ds Mark III and the Canon EOS 20D? 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 1Ds Mark III and the Canon 20D. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth dimensions are rounded to the nearest millimeter.

Size Canon 1Ds Mark III vs Canon 20D
Compare 1Ds Mark III versus 20D top
Comparison 1Ds Mark III or 20D rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon 20D is considerably smaller (36 percent) than the Canon 1Ds Mark III. Moreover, the 20D is substantially lighter (44 percent) than the 1Ds Mark III. It is worth mentioning in this context that the 1Ds Mark III is splash and dust resistant, while the 20D 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 1Ds Mark III) will tend to go along with bigger and heavier lenses, while more compact options are available for the smaller-sensor camera (20D). You can compare the optics available in the Canon EF Lens Catalog.

Concerning battery life, the 1Ds Mark III gets 1800 shots out of its LP-E4 battery, while the 20D can take 700 images on a single charge of its BP-511A power pack. As can be seen in the images above, the 1Ds Mark III 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 20D, Canon provides the BG-E2N 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 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 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 20D« 5.7 in 4.2 in 2.8 in 27.2 oz 700 n Aug 2004 1,499- i Canon 20D
 
Canon 1D X Mark II« » 6.2 in 6.6 in 3.3 in 54.0 oz 1210 Y Feb 2016 5,999 i i Canon 1D X Mark II
 
Canon 1D C« » 6.2 in 6.5 in 3.3 in 54.5 oz 1120 Y Apr 2012 14,999- i Canon 1D C
 
Canon 5D Mark III« » 6.0 in 4.6 in 3.0 in 33.5 oz 950 Y Mar 2012 3,499- i Canon 5D Mark III
 
Canon 6D« » 5.7 in 4.4 in 2.8 in 27.2 oz 1090 Y Sep 2012 2,099- i Canon 6D
 
Canon 1D X« » 6.2 in 6.6 in 3.3 in 54.7 oz 1120 Y Oct 2011 6,799- i Canon 1D X
 
Canon 5D Mark II« » 6.0 in 4.5 in 3.0 in 30.0 oz 850 Y Sep 2008 3,499- i Canon 5D Mark II
 
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 40D« » 5.7 in 4.3 in 2.9 in 29.0 oz 750 n Aug 2007 1,299- i Canon 40D
 
Canon 30D« » 5.7 in 4.2 in 2.9 in 27.7 oz 750 n Feb 2006 1,399- i Canon 30D
 
Canon XT« » 5.0 in 3.7 in 2.5 in 19.0 oz 400 n Feb 2005 899- i Canon XT
 
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 10D« » 5.9 in 4.2 in 3.0 in 30.0 oz 500 n Feb 2003 1,999- i Canon 10D
 
Canon Rebel« » 5.6 in 3.9 in 2.8 in 22.9 oz 400 n Aug 2003 899- i Canon Rebel
 
Canon 1Ds« » 6.1 in 6.2 in 3.1 in 44.6 oz 600 Y Sep 2002 8,999- i Canon 1Ds
 
Nikon D3X« » 6.3 in 6.2 in 3.5 in 44.4 oz 4400 Y Dec 2008 7,999- i Nikon D3X
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

Any camera decision will naturally be influenced heavily by the price. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The 20D was launched at a markedly lower price (by 81 percent) than the 1Ds Mark III, 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.

 

Sensor comparison

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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon 1Ds Mark III features a full frame sensor and the Canon 20D an APS-C sensor. The sensor area in the 20D is 61 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.

Canon 1Ds Mark III and Canon 20D sensor measures

With 21MP, the 1Ds Mark III offers a higher resolution than the 20D (8.2MP), but the 1Ds Mark III has marginally smaller individual pixels (pixel pitch of 6.41μm versus 6.42μm for the 20D). However, the 1Ds Mark III is a much more recent model (by 3 years) than the 20D, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels.

The resolution advantage of the Canon 1Ds Mark III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 1Ds Mark III for good quality output (200 dots per inch) amounts to 28.1 x 18.7 inch or 71.3 x 47.5 cm, for very good quality (250 dpi) 22.5 x 15 inch or 57.1 x 38 cm, and for excellent quality (300 dpi) 18.7 x 12.5 inch or 47.5 x 31.7 cm. The corresponding values for the Canon 20D 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-1Ds Mark III 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 20D are ISO 100 to ISO 1600, with the possibility to increase the ISO range to 100-3200.

1Ds Mark III versus 20D MP

For many cameras, data on sensor performance has been reported by DXO Mark. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). Of the two cameras under review, the 1Ds Mark III provides substantially higher image quality than the 20D, with an overall score that is 18 points higher. This advantage is based on 2.1 bits higher color depth, 1 EV in additional dynamic range, and 1.2 stops in additional low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

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 1Ds Mark III» Full Frame 21.0 5616 3744-24.012.0166380Canon 1Ds Mark III
 
Canon 20D« APS-C 8.2 3504 2336-21.911.072162Canon 20D
 
Canon 1D X Mark II« » Full Frame 20.0 5472 36484K/60p24.113.5320788Canon 1D X Mark II
 
Canon 1D C« » Full Frame 17.9 5184 34564K/24p----Canon 1D C
 
Canon 5D Mark III« » Full Frame 22.1 5760 38401080/30p24.011.7229381Canon 5D Mark III
 
Canon 6D« » Full Frame 20.0 5472 36481080/30p23.812.1234082Canon 6D
 
Canon 1D X« » Full Frame 17.9 5184 34561080/30p23.811.8278682Canon 1D X
 
Canon 5D Mark II« » Full Frame 21.0 5616 37441080/30p23.711.9181579Canon 5D Mark II
 
Canon 1D Mark III« » APS-H 10.1 3888 2592-22.711.7107871Canon 1D Mark III
 
Canon 40D« » APS-C 10.1 3888 2592-22.111.370364Canon 40D
 
Canon 30D« » APS-C 8.2 3504 2336-21.510.873659Canon 30D
 
Canon XT« » APS-C 8.0 3456 2304-21.810.863760Canon XT
 
Canon 1Ds Mark II« » Full Frame 16.6 4992 3328-23.311.3148074Canon 1Ds Mark II
 
Canon 10D« » APS-C 6.3 3072 2048-21.110.957157Canon 10D
 
Canon Rebel« » APS-C 6.3 3072 2048-21.010.854455Canon Rebel
 
Canon 1Ds« » Full Frame 11.0 4064 2704-21.811.095463Canon 1Ds
 
Nikon D3X« » Full Frame 24.4 6048 4032-24.713.7199288Nikon D3X
The 1Ds Mark III offers Live View, so that it can project the live image that the sensor receives onto the rear screen for framing. The 20D lacks this capability. Both cameras are still-image focused and cannot record videos.
 

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The 1Ds Mark III and the 20D 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 1Ds Mark III offers a wider field of view (100%) than the one in the 20D (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the 1Ds Mark III has a higher magnification (0.76x vs 0.56x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Canon 1Ds Mark III and Canon 20D along with similar information for a selection of comparators.

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 1Ds Mark III»optical Y 3.0 230 fixed n 1/8000s 5.0 n n Canon 1Ds Mark III
 
Canon 20D«optical Y 1.8 118 fixed n 1/8000s 5.0 Y n Canon 20D
 
Canon 1D X Mark II« »optical Y 3.2 1620 fixed Y 1/8000s 16.0 n n Canon 1D X Mark II
 
Canon 1D C« »optical Y 3.2 1040 fixed n 1/8000s 14.0 n n Canon 1D C
 
Canon 5D Mark III« »optical Y 3.2 1040 fixed n 1/8000s 6.0 n n Canon 5D Mark III
 
Canon 6D« »optical Y 3.0 1040 fixed n 1/4000s 4.5 n n Canon 6D
 
Canon 1D X« »optical Y 3.2 1040 fixed n 1/8000s 14.0 n n Canon 1D X
 
Canon 5D Mark II« »optical Y 3.0 920 fixed n 1/8000s 3.9 n n Canon 5D Mark II
 
Canon 1D Mark III« »optical Y 3.0 230 fixed n 1/8000s 10.0 n n Canon 1D Mark III
 
Canon 40D« »optical Y 3.0 230 fixed n 1/8000s 6.5 Y n Canon 40D
 
Canon 30D« »optical Y 2.5 230 fixed n 1/8000s 5.0 Y n Canon 30D
 
Canon XT« »optical n 1.8 115 fixed n 1/4000s 3.0 Y n Canon XT
 
Canon 1Ds Mark II« »optical Y 2.0 230 fixed n 1/8000s 4.0 n n Canon 1Ds Mark II
 
Canon 10D« »optical Y 1.8 118 fixed n 1/4000s 3.0 Y n Canon 10D
 
Canon Rebel« »optical n 1.8 118 fixed n 1/4000s 2.5 Y n Canon Rebel
 
Canon 1Ds« »optical Y 2.0 120 fixed n 1/8000s 3.0 n n Canon 1Ds
 
Nikon D3X« »optical Y 3.0 922 fixed n 1/8000s 5.0 n n Nikon D3X

One difference between the cameras concerns the presence of an on-board flash. The 20D has one, while the 1Ds Mark III does not. While the built-in flash of the 20D is not very powerful, it can at times be useful as a fill-in light.

The 1Ds Mark III writes its imaging data to Compact Flash or SDHC cards, while the 20D uses Compact Flash cards.

 

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-1Ds Mark III and Canon EOS 20D 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 1Ds Mark III»Y-----2.0---Canon 1Ds Mark III
 
Canon 20D«Y-----1.1---Canon 20D
 
Canon 1D X Mark II« »YmonomonoYYmini3.0---Canon 1D X Mark II
 
Canon 1D C« »YmonomonoYYmini2.0---Canon 1D C
 
Canon 5D Mark III« »YmonomonoYYmini2.0---Canon 5D Mark III
 
Canon 6D« »YmonomonoY-mini2.0Y--Canon 6D
 
Canon 1D X« »Ymono-Y-mini2.0---Canon 1D X
 
Canon 5D Mark II« »YmonomonoY-mini2.0---Canon 5D Mark II
 
Canon 1D Mark III« »Y-----2.0---Canon 1D Mark III
 
Canon 40D« »Y-----2.0---Canon 40D
 
Canon 30D« »Y-----2.0---Canon 30D
 
Canon XT« »Y-----2.0---Canon XT
 
Canon 1Ds Mark II« »Y-----2.0---Canon 1Ds Mark II
 
Canon 10D« »Y-----1.1---Canon 10D
 
Canon Rebel« »Y-----1.1---Canon Rebel
 
Canon 1Ds« »Y-----FW---Canon 1Ds
 
Nikon D3X« »Y----mini2.0---Nikon D3X

Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.

Both the 1Ds Mark III and the 20D have been discontinued, but can regularly be found used on eBay. The 20D was replaced by the Canon 30D, while the 1Ds Mark III was followed by the Canon 1DX. 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 what is the bottom line? Which of the two cameras – the Canon 1Ds Mark III or the Canon 20D – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.


Arguments in favor of the Canon EOS-1Ds Mark III:

  • More detail: Offers more megapixels (21 vs 8.2MP) with a 60% higher linear resolution.
  • Better image quality: Scores substantially higher (18 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (2.1 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (1 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (1.2 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 (0.76x vs 0.56x).
  • Larger screen: Has a bigger rear LCD (3.0" vs 1.8") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (230k vs 118k dots).
  • More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
  • Longer lasting: Can take more shots (1800 versus 700) on a single battery charge.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • Faster data transfer: Supports a more advanced USB protocol (2.0 vs 1.1).
  • More modern: Reflects 3 years of technical progress since the 20D launch.


Advantages of the Canon EOS 20D:

  • More compact: Is smaller (144x106mm vs 150x160mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 615g or 44 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 (81 percent cheaper at launch).
  • More heavily discounted: Has been around for much longer (launched in August 2004).

If the number of relative strengths (bullet points above) is taken as a guide, the 1Ds Mark III is the clear winner of the match-up (14 : 5 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 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.

1Ds Mark III 14:05 20D

How about other alternatives? Do the specifications of the Canon 1Ds Mark III and the Canon 20D 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 says little about, for example, the shooting experience and imaging performance of the 1Ds Mark III and the 20D in practical situations. 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 1Ds Mark III»-+ +4.5/5-- Aug 2007 7,999- i Canon 1Ds Mark III
 
Canon 20D«-+ +-o- Aug 2004 1,499- i Canon 20D
 
Canon 1D X Mark II« »-89/1004.5/55/54.5/5 Feb 2016 5,999 i i Canon 1D X Mark II
 
Canon 1D C« »----- Apr 2012 14,999- i Canon 1D C
 
Canon 5D Mark III« »+ +82/1004.5/55/54.5/5 Mar 2012 3,499- i Canon 5D Mark III
 
Canon 6D« »+ +83/1004.5/54.5/54.5/5 Sep 2012 2,099- i Canon 6D
 
Canon 1D X« »--4.5/54.5/54.5/5 Oct 2011 6,799- i Canon 1D X
 
Canon 5D Mark II« »91/10079/1004/55/5- Sep 2008 3,499- i Canon 5D Mark II
 
Canon 1D Mark III« »---o- Feb 2007 4,499- i Canon 1D Mark III
 
Canon 40D« »+ ++ +4.5/5o4.5/5 Aug 2007 1,299- i Canon 40D
 
Canon 30D« »+ ++ +oo- Feb 2006 1,399- i Canon 30D
 
Canon XT« »80/100+ +oo- Feb 2005 899- i Canon XT
 
Canon 1Ds Mark II« »-+ +--- Sep 2004 7,999- i Canon 1Ds Mark II
 
Canon 10D« »-+ +-o- Feb 2003 1,999- i Canon 10D
 
Canon Rebel« »-+ +-o- Aug 2003 899- i Canon Rebel
 
Canon 1Ds« »-+ +--- Sep 2002 8,999- i Canon 1Ds
 
Nikon D3X« »-86/1004/55/55/5 Dec 2008 7,999- i Nikon D3X
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, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Canon 1Ds Mark III:
Check Ebay offers
Canon 20D:
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 make your choice using the following search menu. 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 1Ds Mark III vs Canon 20D

    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 1Ds Mark III Canon 20D
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Canon EF mount lenses Canon EF mount lenses
    Launch Date August 2007 August 2004
    Launch Price USD 7999 USD 1499
    Sensor Specs Canon 1Ds Mark III Canon 20D
    Sensor Technology CMOS CMOS
    Sensor Format Full Frame Sensor APS-C Sensor
    Sensor Size 36.0 x 24.0 mm 22.5 x 15.0 mm
    Sensor Area 864 mm2 337.5 mm2
    Sensor Diagonal 43.3 mm 27 mm
    Crop Factor 1.0x 1.6x
    Sensor Resolution 21 Megapixels 8.2 Megapixels
    Image Resolution 5616 x 3744 pixels 3504 x 2336 pixels
    Pixel Pitch 6.41 μm 6.42 μm
    Pixel Density 2.43 MP/cm2 2.43 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability no Video no Video
    ISO Setting 100-1600 ISO 100-1600 ISO
    ISO Boost 50-3200 ISO 100-3200 ISO
    Image Processor DIGIC III (Dual) DIGIC 2
    DXO Sensor Quality (score) 80 62
    DXO Color Depth (bits) 24.0 21.9
    DXO Dynamic Range (EV) 12.0 11.0
    DXO Low Light (ISO) 1663 721
    Screen Specs Canon 1Ds Mark III Canon 20D
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 100% 95%
    Viewfinder Magnification 0.76x 0.56x
    Top-Level Screen Control Panel Control Panel
    LCD Framing Live View
    Rear LCD Size 3.0 inch 1.8 inch
    LCD Resolution 230k dots 118k dots
    LCD Attachment Fixed screen Fixed screen
    Shooting Specs Canon 1Ds Mark III Canon 20D
    Autofocus System Phase-detect AF Phase-detect AF
    Continuous Shooting 5 shutter flaps/s 5 shutter flaps/s
    Shutter Life Expectancy300 000 actuations50 000 actuations
    Fill Flash no On-Board Flash Build-in Flash
    Storage Medium CF or SDHC cards CF cards
    Second Storage Option Single card slot Single card slot
    Connectivity Specs Canon 1Ds Mark III Canon 20D
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector USB 2.0 USB 1.1
    HDMI Port no HDMI no HDMI
    Wifi Support no Wifi no Wifi
    Body Specs Canon 1Ds Mark III Canon 20D
    Environmental SealingWeathersealed bodyNot weather sealed
    Battery Type LP-E4 BP-511A
    Battery Life (CIPA)1800 shots per charge700 shots per charge
    Body Dimensions 150 x 160 x 80 mm
    (5.9 x 6.3 x 3.1 in)
    144 x 106 x 72 mm
    (5.7 x 4.2 x 2.8 in)
    Camera Weight 1385 g (48.9 oz) 770 g (27.2 oz)

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