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Canon 1Ds Mark III vs Olympus E-3

The Canon EOS-1Ds Mark III and the Olympus E-3 are two professional cameras that were officially introduced, respectively, in August 2007 and October 2007. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (1Ds Mark III) and a Four Thirds (E-3) sensor. The Canon has a resolution of 21 megapixels, whereas the Olympus provides 10 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
versus
Olympus E-3
Canon 1Ds Mark III   Olympus E-3
Digital single lens reflex Digital single lens reflex
Canon EF mount lenses Four Thirds lenses
21 MP – Full Frame sensor 10 MP – Four Thirds sensor
no Video no Video
ISO 100-1,600 (50 - 3,200) ISO 100-3,200
Optical viewfinder Optical viewfinder
3.0" LCD – 230k dots 2.5" LCD – 230k dots
Fixed screen (not touch-sensitive) Swivel screen (not touch-sensitive)
5 shutter flaps per second 5 shutter flaps per second
Lens stabilization onlyIn-body stabilization
Weathersealed bodyWeathersealed body
1800 shots per battery charge750 shots per battery charge
150 x 160 x 80 mm, 1385 g 142 x 116 x 75 mm, 876 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS-1Ds Mark III and the Olympus E-3? 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

An illustration of the physical size and weight of the Canon 1Ds Mark III and the Olympus E-3 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All size dimensions are rounded to the nearest millimeter.

Size Canon 1Ds Mark III vs Olympus E-3
Compare 1Ds Mark III versus E-3 top
Comparison 1Ds Mark III or E-3 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-3 is considerably smaller (31 percent) than the Canon 1Ds Mark III. Moreover, the E-3 is substantially lighter (37 percent) than the 1Ds Mark III. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

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 will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Canon EF Lens Catalog (1Ds Mark III) and the Four Thirds Lens Catalog (E-3).

Concerning battery life, the 1Ds Mark III gets 1800 shots out of its LP-E4 battery, while the E-3 can take 750 images on a single charge of its BLM-1 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 E-3, Olympus provides the HLD-4 vertical grip as an optional accessory (see here on ebay).

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

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Body Specifications
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon 1Ds Mark III 150 mm 160 mm 80 mm 1385 g 1800 Y Aug 2007 7,999ebay.com
2.
 
Olympus E-3 142 mm 116 mm 75 mm 876 g 750 Y Oct 2007 1,699ebay.com
3.
 
Canon 1D X Mark III 158 mm 168 mm 83 mm 1440 g 2850 Y Jan 2020 6,499 amazon.com
4.
 
Canon 1D X Mark II 158 mm 168 mm 83 mm 1530 g 1210 Y Feb 2016 5,999ebay.com
5.
 
Canon 1D C 158 mm 164 mm 83 mm 1545 g 1120 Y Apr 2012 14,999ebay.com
6.
 
Canon 5D Mark III 152 mm 116 mm 76 mm 950 g 950 Y Mar 2012 3,499ebay.com
7.
 
Canon 1D X 158 mm 168 mm 83 mm 1551 g 1120 Y Oct 2011 6,799ebay.com
8.
 
Canon 5D Mark II 152 mm 114 mm 75 mm 850 g 850 Y Sep 2008 3,499ebay.com
9.
 
Canon 1D Mark III 156 mm 157 mm 80 mm 1155 g 2200 Y Feb 2007 4,499ebay.com
10.
 
Canon 1Ds Mark II 156 mm 158 mm 80 mm 1215 g 1200 Y Sep 2004 7,999ebay.com
11.
 
Canon 1Ds 156 mm 158 mm 80 mm 1265 g 600 Y Sep 2002 8,999ebay.com
12.
 
Nikon D3X 160 mm 157 mm 88 mm 1260 g 4400 Y Dec 2008 7,999ebay.com
13.
 
Olympus E-5 142 mm 117 mm 75 mm 873 g 750 Y Sep 2010 1,699ebay.com
14.
 
Olympus E-30 142 mm 108 mm 75 mm 701 g 750 n Nov 2008 1,299ebay.com
15.
 
Olympus E-520 136 mm 92 mm 68 mm 535 g 750 n May 2008 699ebay.com
16.
 
Olympus E-510 136 mm 92 mm 68 mm 538 g 750 n Mar 2007 799ebay.com
17.
 
Olympus E-1 141 mm 104 mm 81 mm 738 g 750 Y Jun 2003 1,699ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The E-3 was launched at a markedly lower price (by 79 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 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. 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 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 Olympus E-3 a Four Thirds sensor. The sensor area in the E-3 is 74 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 2.0. The sensor in the 1Ds Mark III has a native 3:2 aspect ratio, while the one in the E-3 offers a 4:3 aspect.

Canon 1Ds Mark III and Olympus E-3 sensor measures

With 21MP, the 1Ds Mark III offers a higher resolution than the E-3 (10MP), but the 1Ds Mark III nevertheless has larger individual pixels (pixel pitch of 6.41μm versus 4.74μm for the E-3) due to its larger sensor. It is noteworthy in this context that the two cameras were released in close succession, so that their sensors are from the same technological generation.

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 inches or 71.3 x 47.5 cm, for very good quality (250 dpi) 22.5 x 15 inches or 57.1 x 38 cm, and for excellent quality (300 dpi) 18.7 x 12.5 inches or 47.5 x 31.7 cm. The corresponding values for the Olympus E-3 are 18.2 x 13.7 inches or 46.3 x 34.7 cm for good quality, 14.6 x 10.9 inches or 37.1 x 27.8 cm for very good quality, and 12.2 x 9.1 inches or 30.9 x 23.2 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 Olympus E-3 are ISO 100 to ISO 3200 (no boost).

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

1Ds Mark III versus E-3 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 1Ds Mark III provides substantially higher image quality than the E-3, with an overall score that is 24 points higher. This advantage is based on 2.4 bits higher color depth, 1.5 EV in additional dynamic range, and 1.5 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.

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Sensor Characteristics
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Canon 1Ds Mark III Full Frame 21.0 5616 3744none24.012.0166380
2.
 
Olympus E-3 Four Thirds 10.0 3648 2736none21.610.557156
3.
 
Canon 1D X Mark III Full Frame 20.0 5472 36484K/60p24.214.5324891
4.
 
Canon 1D X Mark II Full Frame 20.0 5472 36484K/60p24.113.5320788
5.
 
Canon 1D C Full Frame 17.9 5184 34564K/24p24.313.0215585
6.
 
Canon 5D Mark III Full Frame 22.1 5760 38401080/30p24.011.7229381
7.
 
Canon 1D X Full Frame 17.9 5184 34561080/30p23.811.8278682
8.
 
Canon 5D Mark II Full Frame 21.0 5616 37441080/30p23.711.9181579
9.
 
Canon 1D Mark III APS-H 10.1 3888 2592none22.711.7107871
10.
 
Canon 1Ds Mark II Full Frame 16.6 4992 3328none23.311.3148074
11.
 
Canon 1Ds Full Frame 11.0 4064 2704none21.811.095463
12.
 
Nikon D3X Full Frame 24.4 6048 4032none24.713.7199288
13.
 
Olympus E-5 Four Thirds 12.2 4032 3024720/30p21.610.551956
14.
 
Olympus E-30 Four Thirds 12.2 4032 3024none21.310.453055
15.
 
Olympus E-520 Four Thirds 10.0 3648 2736none21.410.454855
16.
 
Olympus E-510 Four Thirds 10.0 3648 2736none21.210.044252
17.
 
Olympus E-1 Four Thirds 4.9 2560 1920none20.09.7-14544
Note: DXO values in italics represent estimates based on sensor size and age.
Both the 1Ds Mark III and the E-3 offer Live View, so that they make it possible to use the rear screen for framing. 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 E-3 are similar in the sense that both have an optical viewfinder. The latter is useful for getting a clear image for framing even in brightly lit environments. The viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the 1Ds Mark III has a higher magnification than the one of the E-3 (0.76x vs 0.58x), 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 1Ds Mark III and Olympus E-3 in connection with corresponding information for a sample of similar cameras.

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Core Features
    Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Canon 1Ds Mark IIIoptical Y3.0 / 230 fixed n 1/8000s 5.0/s n n
2.
 
Olympus E-3optical Y2.5 / 230 swivel n 1/8000s 5.0/s Y Y
3.
 
Canon 1D X Mark IIIoptical Y3.2 / 2100 fixed Y 1/8000s 20.0/s n n
4.
 
Canon 1D X Mark IIoptical Y3.2 / 1620 fixed Y 1/8000s 16.0/s n n
5.
 
Canon 1D Coptical Y3.2 / 1040 fixed n 1/8000s 14.0/s n n
6.
 
Canon 5D Mark IIIoptical Y3.2 / 1040 fixed n 1/8000s 6.0/s n n
7.
 
Canon 1D Xoptical Y3.2 / 1040 fixed n 1/8000s 14.0/s n n
8.
 
Canon 5D Mark IIoptical Y3.0 / 920 fixed n 1/8000s 3.9/s n n
9.
 
Canon 1D Mark IIIoptical Y3.0 / 230 fixed n 1/8000s 10.0/s n n
10.
 
Canon 1Ds Mark IIoptical Y2.0 / 230 fixed n 1/8000s 4.0/s n n
11.
 
Canon 1Dsoptical Y2.0 / 120 fixed n 1/8000s 3.0/s n n
12.
 
Nikon D3Xoptical Y3.0 / 922 fixed n 1/8000s 5.0/s n n
13.
 
Olympus E-5optical Y3.0 / 920 swivel n 1/8000s 5.0/s Y Y
14.
 
Olympus E-30optical Y2.7 / 230 swivel n 1/8000s 5.0/s Y Y
15.
 
Olympus E-520optical n2.7 / 215 fixed n 1/4000s 3.5/s Y Y
16.
 
Olympus E-510optical n2.5 / 215 fixed n 1/4000s 3.0/s Y Y
17.
 
Olympus E-1optical Y1.8 / 134 fixed n 1/4000s 3.0/s n n
Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that differentiates the E-3 and the 1Ds Mark III is in-body image stabilization (IBIS). The E-3 reduces the risk of handshake-induced blur with all attached lenses, while the 1Ds Mark III offers no blur reduction with lenses that themselves do not provide optical image stabilization.

The E-3 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 1Ds Mark III does not have a selfie-screen.

The 1Ds Mark III writes its imaging data to Compact Flash or SDHC cards, while the E-3 uses Compact Flash or xD Picture cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails.

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 Olympus E-3 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
    Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon 1Ds Mark IIIYmono / ----2.0---
2.
 
Olympus E-3Y- / ----2.0---
3.
 
Canon 1D X Mark IIIYmono / monoYYmini3.1Y-Y
4.
 
Canon 1D X Mark IIYmono / monoYYmini3.0---
5.
 
Canon 1D CYmono / monoYYmini2.0---
6.
 
Canon 5D Mark IIIYmono / monoYYmini2.0---
7.
 
Canon 1D XYmono / -Y-mini2.0---
8.
 
Canon 5D Mark IIYmono / monoY-mini2.0---
9.
 
Canon 1D Mark IIIY- / ----2.0---
10.
 
Canon 1Ds Mark IIY- / ----2.0---
11.
 
Canon 1DsY- / ----FW---
12.
 
Nikon D3XY- / ---mini2.0---
13.
 
Olympus E-5Ystereo / ---mini2.0---
14.
 
Olympus E-30Y- / ----2.0---
15.
 
Olympus E-520Y- / ----2.0---
16.
 
Olympus E-510Y- / ----2.0---
17.
 
Olympus E-1Y- / ----2.0---

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 E-3 have been discontinued, but can regularly be found used on ebay. The 1Ds Mark III was replaced by the Canon 1DX, while the E-3 was followed by the Olympus E-5. Further information on the features and operation of the 1Ds Mark III and E-3 can be found, respectively, in the Canon 1Ds Mark III Manual (free pdf) or the online Olympus E-3 Manual.

Review summary

So what conclusions can be drawn? Which of the two cameras – the Canon 1Ds Mark III or the Olympus E-3 – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.

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Reasons to prefer the Canon EOS-1Ds Mark III:

  • More detail: Offers more megapixels (21 vs 10MP) with a 48% higher linear resolution.
  • Better image quality: Scores substantially higher (24 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (2.4 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (1.5 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (1.5 stops ISO advantage).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.76x vs 0.58x).
  • Larger screen: Has a bigger rear LCD (3.0" vs 2.5") for image review and settings control.
  • More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
  • Longer lasting: Can take more shots (1800 versus 750) on a single battery charge.

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Advantages of the Olympus E-3:

  • 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 (142x116mm vs 150x160mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 509g or 37 percent) and is thus easier to take along.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • More affordable: Was introduced into a lower priced category (79 percent cheaper at launch).

If the count of relative strengths (bullet points above) is taken as a measure, the 1Ds Mark III emerges as the winner of the contest (9 : 7 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 09:07 E-3

How about other alternatives? Do the specifications of the Canon 1Ds Mark III and the Olympus E-3 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 Mark III or the E-3. 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

This is where reviews by experts come in. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). 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.

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Expert Camera Reviews
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon 1Ds Mark III......+ +4.5/5.. Aug 2007 7,999ebay.com
2.
 
Olympus E-3..88/100..+ +o4/5 Oct 2007 1,699ebay.com
3.
 
Canon 1D X Mark III..+ +5/5..4.5/54/5 Jan 2020 6,499 amazon.com
4.
 
Canon 1D X Mark II....4.5/589/1004.5/54.5/5 Feb 2016 5,999ebay.com
5.
 
Canon 1D C............ Apr 2012 14,999ebay.com
6.
 
Canon 5D Mark III..+ +..82/1004.5/54.5/5 Mar 2012 3,499ebay.com
7.
 
Canon 1D X5/5......4.5/54.5/5 Oct 2011 6,799ebay.com
8.
 
Canon 5D Mark II4/591/100..79/1004/5.. Sep 2008 3,499ebay.com
9.
 
Canon 1D Mark III............ Feb 2007 4,499ebay.com
10.
 
Canon 1Ds Mark II......+ +.... Sep 2004 7,999ebay.com
11.
 
Canon 1Ds......+ +.... Sep 2002 8,999ebay.com
12.
 
Nikon D3X......86/1004/55/5 Dec 2008 7,999ebay.com
13.
 
Olympus E-54/5....75/1004/54.5/5 Sep 2010 1,699ebay.com
14.
 
Olympus E-30......71/1004.5/54/5 Nov 2008 1,299ebay.com
15.
 
Olympus E-520..87/100..+ +4.5/54.5/5 May 2008 699ebay.com
16.
 
Olympus E-510..89/100..+ +3.5/54.5/5 Mar 2007 799ebay.com
17.
 
Olympus E-1......+o.. Jun 2003 1,699ebay.com
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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Other camera comparisons

Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Canon 1Ds Mark III vs Olympus E-3

    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 Olympus E-3
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Canon EF mount lenses Four Thirds lenses
    Launch Date August 2007 October 2007
    Launch Price USD 7,999 USD 1,699
    Sensor Specs Canon 1Ds Mark III Olympus E-3
    Sensor Technology CMOS CMOS
    Sensor Format Full Frame Sensor Four Thirds Sensor
    Sensor Size 36.0 x 24.0 mm 17.3 x 13.0 mm
    Sensor Area 864 mm2 224.9 mm2
    Sensor Diagonal 43.3 mm 21.6 mm
    Crop Factor 1.0x 2.0x
    Sensor Resolution 21 Megapixels 10 Megapixels
    Image Resolution 5616 x 3744 pixels 3648 x 2736 pixels
    Pixel Pitch 6.41 μm 4.74 μm
    Pixel Density 2.43 MP/cm2 4.44 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability no Video no Video
    ISO Setting 100 - 1,600 ISO 100 - 3,200 ISO
    ISO Boost 50 - 3,200 ISO no Enhancement
    Image Processor DIGIC III (Dual) TruePic III
    DXO Sensor Quality (score) 80 56
    DXO Color Depth (bits) 24.0 21.6
    DXO Dynamic Range (EV) 12.0 10.5
    DXO Low Light (ISO) 1663 571
    Screen Specs Canon 1Ds Mark III Olympus E-3
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.76x 0.58x
    Top-Level Screen Control Panel Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 2.5inch
    LCD Resolution 230k dots 230k dots
    LCD Attachment Fixed screen Swivel screen
    Shooting Specs Canon 1Ds Mark III Olympus E-3
    Focus System Phase-detect AF Phase-detect AF
    Continuous Shooting 5 shutter flaps/s 5 shutter flaps/s
    Shutter Life Expectancy300 000 actuations150 000 actuations
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash no On-Board Flash Built-in Flash
    Storage Medium CF or SDHC cards CF or XD cards
    Single or Dual Card Slots Dual card slots Dual card slots
    Connectivity Specs Canon 1Ds Mark III Olympus E-3
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port no HDMI no HDMI
    Wifi Support no Wifi no Wifi
    Body Specs Canon 1Ds Mark III Olympus E-3
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type LP-E4 BLM-1
    Battery Life (CIPA)1800 shots per charge750 shots per charge
    Body Dimensions 150 x 160 x 80 mm
    (5.9 x 6.3 x 3.1 in)
    142 x 116 x 75 mm
    (5.6 x 4.6 x 3.0 in)
    Camera Weight 1385 g (48.9 oz) 876 g (30.9 oz)
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