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Canon 1Ds vs 20D

The Canon EOS-1Ds and the Canon EOS 20D are two digital cameras that were officially introduced, respectively, in September 2002 and August 2004. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (1Ds) and an APS-C (20D) sensor. The 1Ds has a resolution of 11 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   Canon 20D
Canon 1Ds Canon 20D
Digital single lens reflex Digital single lens reflex
Canon EF mount lenses Canon EF mount lenses
11 MP, Full Frame Sensor 8.2 MP, APS-C Sensor
no Video no Video
ISO 100-1250 ISO 100-1600 (100-3200)
Optical viewfinder Optical viewfinder
2.0" LCD, 120k dots 1.8" LCD, 118k dots
Fixed screen (not touch-sensitive) Fixed screen (not touch-sensitive)
3 shutter flaps per second 5 shutter flaps per second
Weathersealed bodyNot weather sealed
600 shots per battery charge700 shots per battery charge
156 x 158 x 80 mm, 1265 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 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: Canon 1Ds vs 20D

The physical size and weight of the Canon 1Ds and the Canon 20D are illustrated in the side-by-side display below. 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 vs Canon 20D
Compare 1Ds versus 20D top
Comparison 1Ds 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 (38 percent) than the Canon 1Ds. Moreover, the 20D is substantially lighter (39 percent) than the 1Ds. It is worth mentioning in this context that the 1Ds 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) 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 gets 600 shots out of its NP-E3 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 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 table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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» 6.1 in 6.2 in 3.1 in 44.6 oz 600 Y Sep 2002 8,999- i Canon 1Ds
 
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 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 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 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 XT« » 5.0 in 3.7 in 2.5 in 19.0 oz 400 n Feb 2005 899- i Canon XT
 
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 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
 
Nikon D2Xs« » 6.2 in 5.9 in 3.4 in 44.2 oz 3800 Y Jun 2006 4,699- i Nikon D2Xs
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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The 20D was launched at a markedly lower price (by 83 percent) than the 1Ds, 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 1Ds vs 20D

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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better 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 1Ds 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.

Technology-wise, the 20D uses a more advanced image processing engine (DIGIC 2) than the 1Ds (DIGIC), with benefits for noise reduction, color accuracy, and processing speed.

Canon 1Ds and Canon 20D sensor measures

With 11MP, the 1Ds offers a higher resolution than the 20D (8.2MP), but the 1Ds nevertheless has larger individual pixels (pixel pitch of 8.83μm versus 6.42μm for the 20D) due to its larger sensor. However, the 20D is a somewhat more recent model (by 1 year and 10 months) than the 1Ds, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels.

The resolution advantage of the Canon 1Ds implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 1Ds for good quality output (200 dots per inch) amounts to 20.3 x 13.5 inch or 51.6 x 34.3 cm, for very good quality (250 dpi) 16.3 x 10.8 inch or 41.3 x 27.5 cm, and for excellent quality (300 dpi) 13.5 x 9 inch or 34.4 x 22.9 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 has a native sensitivity range from ISO 100 to ISO 1250, which can be extended to ISO 50-1250. 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 versus 20D MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar 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 1Ds» Full Frame 11.0 4064 2704-21.811.095463Canon 1Ds
 
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 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 40D« » APS-C 10.1 3888 2592-22.111.370364Canon 40D
 
Canon 30D« » APS-C 8.2 3504 2336-21.510.873659Canon 30D
 
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 XT« » APS-C 8.0 3456 2304-21.810.863760Canon XT
 
Canon 1D Mark II« » APS-H 8.2 3504 2336-22.311.1100366Canon 1D Mark II
 
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
 
Nikon D2Xs« » APS-C 12.2 4288 2848-22.210.948959Nikon D2Xs
Neither the 1Ds nor the 20D offer Live View, so that they cannot project the live image that the sensor receives onto the rear screen. Moreover, both cameras are still-image focused and cannot record videos.
 

Feature comparison: Canon 1Ds vs 20D

Apart from body and sensor, cameras can and do differ across a variety of features. The 1Ds 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 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 has a higher magnification (0.70x vs 0.56x), 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 1Ds, the Canon 20D, 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 1Ds»optical Y 2.0 120 fixed n 1/8000s 3.0 n n Canon 1Ds
 
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 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 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 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 XT« »optical n 1.8 115 fixed n 1/4000s 3.0 Y n Canon XT
 
Canon 1D Mark II« »optical Y 2.0 230 fixed n 1/8000s 8.3 n n Canon 1D Mark II
 
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
 
Nikon D2Xs« »optical Y 2.5 230 fixed n 1/8000s 5.0 n n Nikon D2Xs

One difference between the cameras concerns the presence of an on-board flash. The 20D has one, while the 1Ds 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.

Concerning the storage of imaging data, both the 1Ds and the 20D write their files to Compact Flash cards.

 

Connectivity comparison: Canon 1Ds vs 20D

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 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»Y-----FW---Canon 1Ds
 
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 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 40D« »Y-----2.0---Canon 40D
 
Canon 30D« »Y-----2.0---Canon 30D
 
Canon 1D Mark II N« »Y-----1.1---Canon 1D Mark II N
 
Canon 5D« »Y-----2.0---Canon 5D
 
Canon XT« »Y-----2.0---Canon XT
 
Canon 1D Mark II« »Y-----1.1---Canon 1D Mark II
 
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
 
Nikon D2Xs« »Y-----2.0---Nikon D2Xs

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

Both the 1Ds and the 20D have been discontinued, but can regularly be found used on eBay. The 1Ds was replaced by the Canon 1Ds Mark II, while the 20D was followed by the Canon 30D. 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 1Ds vs 20D

So how do things add up? Is the Canon 1Ds better than the Canon 20D or vice versa? Below is a summary of the relative strengths of each of the two contestants.


Arguments in favor of the Canon EOS-1Ds:

  • More detail: Offers more megapixels (11 vs 8.2MP) with a 16% higher linear resolution.
  • Better low-light sensitivity: Requires less light for good images (0.4 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 (0.70x vs 0.56x).
  • Larger screen: Has a bigger rear LCD (2.0" vs 1.8") for image review and settings control.
  • More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • More heavily discounted: Has been on the market for longer (launched in September 2002).


Reasons to prefer the Canon EOS 20D:

  • Better jpgs: Has a more modern image processing engine (DIGIC 2 vs DIGIC).
  • Faster burst: Shoots at higher frequency (5 vs 3 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (144x106mm vs 156x158mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 495g or 39 percent) and is thus easier to take along.
  • Longer lasting: Gets more shots (700 versus 600) out of a single battery charge.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • More affordable: Was introduced into a lower priced category (83 percent cheaper at launch).
  • More modern: Was introduced somewhat (1 year and 10 months) more recently.

If the count of relative strengths (bullet points above) is taken as a measure, the match-up finishes in a tie (8 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 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 08:08 20D

How about other alternatives? Do the specifications of the Canon 1Ds 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 comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the 1Ds or the 20D. 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 1Ds vs 20D

This is why hands-on reviews by experts are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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»-+ +--- Sep 2002 8,999- i Canon 1Ds
 
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 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 40D« »+ ++ +4.5/5o4.5/5 Aug 2007 1,299- i Canon 40D
 
Canon 30D« »+ ++ +oo- Feb 2006 1,399- i Canon 30D
 
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 XT« »80/100+ +oo- Feb 2005 899- i Canon XT
 
Canon 1D Mark II« »-+ +-o- Jan 2004 4,499- i Canon 1D Mark II
 
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
 
Nikon D2Xs« »---o- Jun 2006 4,699- i Nikon D2Xs
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. Hence, a score should always be seen in the context of the camera's market launch date and its price, 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 1Ds:
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 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 Canon 20D
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Canon EF mount lenses Canon EF mount lenses
    Launch Date September 2002 August 2004
    Launch Price USD 8999 USD 1499
    Sensor Specs Canon 1Ds Canon 20D
    Sensor Technology CMOS CMOS
    Sensor Format Full Frame Sensor APS-C Sensor
    Sensor Size 36.0 x 23.8 mm 22.5 x 15.0 mm
    Sensor Area 856.8 mm2 337.5 mm2
    Sensor Diagonal 43.2 mm 27 mm
    Crop Factor 1.0x 1.6x
    Sensor Resolution 11 Megapixels 8.2 Megapixels
    Image Resolution 4064 x 2704 pixels 3504 x 2336 pixels
    Pixel Pitch 8.83 μm 6.42 μm
    Pixel Density 1.28 MP/cm2 2.43 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability no Video no Video
    ISO Setting 100-1250 ISO 100-1600 ISO
    ISO Boost 50-1250 ISO 100-3200 ISO
    Image Processor DIGIC DIGIC 2
    DXO Sensor Quality (score) 63 62
    DXO Color Depth (bits) 21.8 21.9
    DXO Dynamic Range (EV) 11.0 11.0
    DXO Low Light (ISO) 954 721
    Screen Specs Canon 1Ds Canon 20D
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 100% 95%
    Viewfinder Magnification 0.70x 0.56x
    Top-Level Screen Control Panel Control Panel
    Rear LCD Size 2.0 inch 1.8 inch
    LCD Resolution 120k dots 118k dots
    LCD Attachment Fixed screen Fixed screen
    Shooting Specs Canon 1Ds Canon 20D
    Autofocus System Phase-detect AF Phase-detect AF
    Continuous Shooting 3 shutter flaps/s 5 shutter flaps/s
    Fill Flash no On-Board Flash Build-in Flash
    Storage Medium CF cards CF cards
    Second Storage Option Single card slot Single card slot
    Connectivity Specs Canon 1Ds Canon 20D
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector Firewire USB 1.1
    HDMI Port no HDMI no HDMI
    Wifi Support no Wifi no Wifi
    Body Specs Canon 1Ds Canon 20D
    Environmental SealingWeathersealed bodyNot weather sealed
    Battery Type NP-E3 power pack BP-511A power pack
    Battery Life (CIPA)600 shots per charge700 shots per charge
    Body Dimensions 156 x 158 x 80 mm
    (6.1 x 6.2 x 3.1 in)
    144 x 106 x 72 mm
    (5.7 x 4.2 x 2.8 in)
    Camera Weight 1265 g (44.6 oz) 770 g (27.2 oz)

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