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Canon 10D vs Olympus E-M1

The Canon EOS 10D and the Olympus OM-D E-M1 are two enthusiast cameras that were officially introduced, respectively, in February 2003 and September 2013. The 10D is a DSLR, while the E-M1 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (10D) and a Four Thirds (E-M1) sensor. The Canon has a resolution of 6.3 megapixels, whereas the Olympus provides 15.9 MP.

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

Headline Specifications
Canon 10D
versus
Olympus E-M1
Canon 10D   Olympus E-M1
Digital single lens reflex Mirrorless system camera
Canon EF mount lenses Micro Four Thirds lenses
6.3 MP – APS-C sensor 15.9 MP – Four Thirds sensor
no Video 1080/30p Video
ISO 100-3,200 ISO 200-25,600
Optical viewfinder Electronic viewfinder (2360k dots)
1.8" LCD – 118k dots 3.0" LCD – 1037k dots
Fixed screen (not touch-sensitive) Tilting touchscreen
3 shutter flaps per second 10 shutter flaps per second
Lens stabilization onlyIn-body stabilization
not weather sealedWeathersealed body
500 shots per battery charge350 shots per battery charge
150 x 107 x 75 mm, 850 g 130 x 94 x 63 mm, 497 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 10D and the Olympus OM-D E-M1? 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.

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Body comparison

The physical size and weight of the Canon 10D and the Olympus E-M1 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 size dimensions are rounded to the nearest millimeter.

The E-M1 can be obtained in two different colors (black, silver), while the 10D is only available in black.

Size Canon 10D vs Olympus E-M1
Compare 10D versus E-M1 top
Comparison 10D or E-M1 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-M1 is notably smaller (24 percent) than the Canon 10D. Moreover, the E-M1 is substantially lighter (42 percent) than the 10D. It is noteworthy in this context that the E-M1 is splash and dust-proof, while the 10D 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 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 (10D) and the Micro Four Thirds Lens Catalog (E-M1). Mirrorless cameras, such as the E-M1, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.

Concerning battery life, the 10D gets 500 shots out of its Canon BP-511 battery, while the E-M1 can take 350 images on a single charge of its Olympus BLN-1 power pack.

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
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
1.
 
Canon 10D 150 mm 107 mm 75 mm 850 g 500 n Feb 2003 US$ 1 999ebay.com
2.
 
Olympus E-M1 130 mm 94 mm 63 mm 497 g 350 Y Sep 2013 US$ 1 399ebay.com
3.
 
Canon 7D 148 mm 111 mm 74 mm 860 g 800 Y Sep 2009 US$ 1 699ebay.com
4.
 
Canon 20D 144 mm 106 mm 72 mm 770 g 700 n Aug 2004 US$ 1 499ebay.com
5.
 
Canon 30D 144 mm 106 mm 74 mm 785 g 750 n Feb 2006 US$ 1 399ebay.com
6.
 
Canon 40D 146 mm 108 mm 74 mm 822 g 750 n Aug 2007 US$ 1 299ebay.com
7.
 
Canon D60 150 mm 107 mm 75 mm 855 g 620 n Feb 2002 US$ 2 999ebay.com
8.
 
Canon SL1 117 mm 91 mm 69 mm 407 g 380 n Mar 2013 US$ 549ebay.com
9.
 
Canon Rebel 142 mm 99 mm 72 mm 649 g 400 n Aug 2003 US$ 899ebay.com
10.
 
Canon T4i 133 mm 100 mm 79 mm 575 g 440 n Jun 2012 US$ 849ebay.com
11.
 
Canon T5 130 mm 100 mm 78 mm 480 g 500 n Feb 2014 US$ 449ebay.com
12.
 
Nikon D100 144 mm 116 mm 81 mm 780 g 370 n Feb 2002 US$ 1 999ebay.com
13.
 
Olympus E-M1 II 134 mm 91 mm 67 mm 574 g 440 Y Sep 2016 US$ 1 999ebay.com
14.
 
Olympus E-M5 122 mm 89 mm 43 mm 425 g 360 Y Feb 2012 US$ 1 299ebay.com
15.
 
Olympus E-M5 II 124 mm 85 mm 45 mm 469 g 310 Y Feb 2015 US$ 1 099ebay.com
16.
 
Olympus E-P5 122 mm 69 mm 37 mm 420 g 330 n May 2013 US$ 999ebay.com
17.
 
Olympus PEN-F 125 mm 72 mm 37 mm 427 g 330 n Jan 2016 US$ 1 199ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or 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 E-M1 was launched at a markedly lower price (by 30 percent) than the 10D, 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

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and 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 10D features an APS-C sensor and the Olympus E-M1 a Four Thirds sensor. The sensor area in the E-M1 is 34 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 2.0. The sensor in the 10D has a native 3:2 aspect ratio, while the one in the E-M1 offers a 4:3 aspect.

Canon 10D and Olympus E-M1 sensor measures

Despite having a smaller sensor, the E-M1 offers a higher resolution of 15.9 megapixels, compared with 6.3 MP of the 10D. 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 3.76μm versus 7.38μm for the 10D). However, it should be noted that the E-M1 is much more recent (by 10 years and 6 months) than the 10D, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. Coming back to sensor resolution, it should be mentioned that the E-M1 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Olympus E-M1 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the E-M1 for good quality output (200 dots per inch) amounts to 23 x 17.3 inches or 58.5 x 43.9 cm, for very good quality (250 dpi) 18.4 x 13.8 inches or 46.8 x 35.1 cm, and for excellent quality (300 dpi) 15.4 x 11.5 inches or 39 x 29.3 cm. The corresponding values for the Canon 10D are 15.4 x 10.2 inches or 39 x 26 cm for good quality, 12.3 x 8.2 inches or 31.2 x 20.8 cm for very good quality, and 10.2 x 6.8 inches or 26 x 17.3 cm for excellent quality prints.

The E-M1 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon EOS 10D has a native sensitivity range from ISO 100 to ISO 3200. The corresponding ISO settings for the Olympus OM-D E-M1 are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 100-25600.

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.

10D versus E-M1 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 consideration, the E-M1 offers substantially better image quality than the 10D (overall score 16 points higher). The advantage is based on 1.9 bits higher color depth, 1.8 EV in additional dynamic range, and 0.4 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
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Canon 10D APS-C 6.3 3072 2048none21.110.957157
2.
 
Olympus E-M1 Four Thirds 15.9 4608 34561080/30p23.012.775773
3.
 
Canon 7D APS-C 17.9 5184 34561080/30p22.011.785466
4.
 
Canon 20D APS-C 8.2 3504 2336none21.911.072162
5.
 
Canon 30D APS-C 8.2 3504 2336none21.510.873659
6.
 
Canon 40D APS-C 10.1 3888 2592none22.111.370364
7.
 
Canon D60 APS-C 6.3 3072 2048none20.39.830147
8.
 
Canon SL1 APS-C 17.9 5184 34561080/30p21.811.384363
9.
 
Canon Rebel APS-C 6.3 3072 2048none21.010.854455
10.
 
Canon T4i APS-C 17.9 5184 34561080/30p21.711.272262
11.
 
Canon T5 APS-C 17.9 5184 34561080/30p21.911.372463
12.
 
Nikon D100 APS-C 6.0 3008 2000none20.49.939448
13.
 
Olympus E-M1 II Four Thirds 20.2 5184 38884K/30p23.712.8131280
14.
 
Olympus E-M5 Four Thirds 15.9 4608 34561080/60i22.812.382671
15.
 
Olympus E-M5 II Four Thirds 15.9 4608 34561080/60p23.012.584273
16.
 
Olympus E-P5 Four Thirds 15.9 4608 34561080/30p22.812.489572
17.
 
Olympus PEN-F Four Thirds 20.2 5184 38881080/60p23.112.489474
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras are not only capable of taking still images, but can also record movies. The E-M1 indeed provides for movie recording, while the 10D does not. The highest resolution format that the E-M1 can use is 1080/30p.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the E-M1 has an electronic viewfinder (2360k dots), while the 10D has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinder in the E-M1 offers a wider field of view (100%) than the one in the 10D (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the E-M1 has a higher magnification (0.74x vs 0.55x), 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 10D and Olympus E-M1 along with similar information for a selection of comparators.

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Core Features
  empty 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 10Doptical Y1.8 / 118 fixed n 1/4000s 3.0/s Y n
2.
 
Olympus E-M12360 n3.0 / 1037 tilting Y 1/8000s 10.0/s n Y
3.
 
Canon 7Doptical Y3.0 / 920 fixed n 1/8000s 8.0/s Y n
4.
 
Canon 20Doptical Y1.8 / 118 fixed n 1/8000s 5.0/s Y n
5.
 
Canon 30Doptical Y2.5 / 230 fixed n 1/8000s 5.0/s Y n
6.
 
Canon 40Doptical Y3.0 / 230 fixed n 1/8000s 6.5/s Y n
7.
 
Canon D60optical Y1.8 / 114 fixed n 1/4000s 3.0/s Y n
8.
 
Canon SL1optical n3.0 / 1040 fixed Y 1/4000s 4.9/s Y n
9.
 
Canon Rebeloptical n1.8 / 118 fixed n 1/4000s 2.5/s Y n
10.
 
Canon T4ioptical n3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
11.
 
Canon T5optical n3.0 / 460 fixed n 1/4000s 3.0/s Y n
12.
 
Nikon D100optical Y1.8 / 118 fixed n 1/4000s 3.0/s Y n
13.
 
Olympus E-M1 II2360 n3.0 / 1037 swivel Y 1/8000s 18.0/s n Y
14.
 
Olympus E-M51440 n3.0 / 610 tilting Y 1/4000s 9.0/s n Y
15.
 
Olympus E-M5 II2360 n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
16.
 
Olympus E-P5optional n3.0 / 1037 tilting Y 1/8000s 9.0/s Y Y
17.
 
Olympus PEN-F2360 n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One difference between the cameras concerns the presence of an on-board flash. The 10D has one, while the E-M1 does not. While the built-in flash of the 10D is not very powerful, it can at times be useful as a fill-in light.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the E-M1 is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Olympus E-M1 has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

The 10D writes its imaging data to Compact Flash cards, while the E-M1 uses SDXC cards.

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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 10D and Olympus OM-D E-M1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon 10DY- / ----1.1---
2.
 
Olympus E-M1Ystereo / monoY-micro2.0Y--
3.
 
Canon 7DYmono / -Y-mini2.0---
4.
 
Canon 20DY- / ----1.1---
5.
 
Canon 30DY- / ----2.0---
6.
 
Canon 40DY- / ----2.0---
7.
 
Canon D60Y- / ----1.1---
8.
 
Canon SL1Ymono / monoY-mini2.0---
9.
 
Canon RebelY- / ----1.1---
10.
 
Canon T4iYstereo / monoY-mini2.0---
11.
 
Canon T5Ymono / mono--mini2.0---
12.
 
Nikon D100Y- / ----1.1---
13.
 
Olympus E-M1 IIYstereo / monoYYmicro3.0Y--
14.
 
Olympus E-M5Ystereo / mono--mini2.0---
15.
 
Olympus E-M5 IIYstereo / monoY-micro2.0Y--
16.
 
Olympus E-P5Ystereo / mono--micro2.0Y--
17.
 
Olympus PEN-FYstereo / mono--micro2.0Y--

It is notable that the E-M1 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the 10D does not provide wifi capability.

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

Both the 10D and the E-M1 have been discontinued, but can regularly be found used on ebay. The 10D was replaced by the Canon 20D, while the E-M1 was followed by the Olympus E-M1 II. Further information on the features and operation of the 10D and E-M1 can be found, respectively, in the Canon 10D Manual (free pdf) or the online Olympus E-M1 Manual.

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Review summary

So how do things add up? Which of the two cameras – the Canon 10D or the Olympus E-M1 – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.

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Advantages of the Canon EOS 10D:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Longer lasting: Can take more shots (500 versus 350) on a single battery charge.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More heavily discounted: Has been available for much longer (launched in February 2003).

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Arguments in favor of the Olympus OM-D E-M1:

  • More detail: Has more megapixels (15.9 vs 6.3MP), which boosts linear resolution by 56%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (16 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (1.9 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (1.8 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (0.4 stops ISO advantage).
  • Broader imaging potential: Can capture not only stills but also 1080/30p video.
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • 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 (0.74x vs 0.55x).
  • 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 (1037k vs 118k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (10 vs 3 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More compact: Is smaller (130x94mm vs 150x107mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 353g or 42 percent) and is thus easier to take along.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • Faster data transfer: Supports a more advanced USB protocol (2.0 vs 1.1).
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • More affordable: Was introduced into a lower priced category (30 percent cheaper at launch).
  • More modern: Reflects 10 years and 6 months of technical progress since the 10D launch.

If the count of individual advantages (bullet points above) is taken as a guide, the E-M1 is the clear winner of the contest (28 : 6 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera. A professional sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

10D 06:28 E-M1

How about other alternatives? Do the specifications of the Canon 10D and the Olympus E-M1 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings 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 10D or the E-M1 perform in practice. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews

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
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Canon 10D......+ +.... Feb 2003 US$ 1 999ebay.com
2.
 
Olympus E-M15/5+ +..84/1004.5/54.5/5 Sep 2013 US$ 1 399ebay.com
3.
 
Canon 7D5/5+ +..84/1004.5/54.5/5 Sep 2009 US$ 1 699ebay.com
4.
 
Canon 20D......+ +.... Aug 2004 US$ 1 499ebay.com
5.
 
Canon 30D..+ +..+ +o.. Feb 2006 US$ 1 399ebay.com
6.
 
Canon 40D..+ +..+ +4.5/54.5/5 Aug 2007 US$ 1 299ebay.com
7.
 
Canon D60......+ +o.. Feb 2002 US$ 2 999ebay.com
8.
 
Canon SL14/5+..78/1004/54/5 Mar 2013 US$ 549ebay.com
9.
 
Canon Rebel......+ +.... Aug 2003 US$ 899ebay.com
10.
 
Canon T4i4/5+ +..77/1004.5/54.5/5 Jun 2012 US$ 849ebay.com
11.
 
Canon T53/5+....4/54.5/5 Feb 2014 US$ 449ebay.com
12.
 
Nikon D100......+ +o.. Feb 2002 US$ 1 999ebay.com
13.
 
Olympus E-M1 II5/5+ +5/585/1004.5/54.5/5 Sep 2016 US$ 1 999ebay.com
14.
 
Olympus E-M54/5+ +..80/1004.5/55/5 Feb 2012 US$ 1 299ebay.com
15.
 
Olympus E-M5 II5/5+ +4.5/581/1005/55/5 Feb 2015 US$ 1 099ebay.com
16.
 
Olympus E-P55/5+ +..78/1004.5/55/5 May 2013 US$ 999ebay.com
17.
 
Olympus PEN-F....4/582/1004.5/55/5 Jan 2016 US$ 1 199ebay.com
Note: (+ +) 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.

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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 a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications: Canon 10D vs Olympus E-M1

    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 10D Olympus E-M1
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Canon EF mount lenses Micro Four Thirds lenses
    Launch Date February 2003 September 2013
    Launch Price USD 1,999 USD 1,399
    Sensor Specs Canon 10D Olympus E-M1
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor Four Thirds Sensor
    Sensor Size 22.7 x 15.1 mm 17.3 x 13.0 mm
    Sensor Area 342.77 mm2 224.9 mm2
    Sensor Diagonal 27.3 mm 21.6 mm
    Crop Factor 1.6x 2.0x
    Sensor Resolution 6.3 Megapixels 15.9 Megapixels
    Image Resolution 3072 x 2048 pixels 4608 x 3456 pixels
    Pixel Pitch 7.38 μm 3.76 μm
    Pixel Density 1.84 MP/cm2 7.08 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability no Video 1080/30p Video
    ISO Setting 100 - 3,200 ISO 200 - 25,600 ISO
    ISO Boost no Enhancement 100 - 25,600 ISO
    Image Processor DIGIC TruePIC VII
    DXO Sensor Quality (score) 57 73
    DXO Color Depth (bits) 21.1 23.0
    DXO Dynamic Range (EV) 10.9 12.7
    DXO Low Light (ISO) 571 757
    Screen Specs Canon 10D Olympus E-M1
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 95% 100%
    Viewfinder Magnification 0.55x 0.74x
    Viewfinder Resolution 2360k dots
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View
    Rear LCD Size 1.8inch 3.0inch
    LCD Resolution 118k dots 1037k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Canon 10D Olympus E-M1
    Focus System Phase-detect AF On-Sensor Phase-detect
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 3 shutter flaps/s 10 shutter flaps/s
    Electronic Shutterno E-ShutterYES
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium CF cards SDXC cards
    Single or Dual Card Slots Single card slot Single card slot
    Connectivity Specs Canon 10D Olympus E-M1
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector USB 1.1 USB 2.0
    HDMI Port no HDMI micro HDMI
    Microphone Port no MIC socket External MIC port
    Wifi Support no Wifi Wifi built-in
    Body Specs Canon 10D Olympus E-M1
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Canon BP-511 Olympus BLN-1
    Battery Life (CIPA)500 shots per charge350 shots per charge
    Body Dimensions 150 x 107 x 75 mm
    (5.9 x 4.2 x 3.0 in)
    130 x 94 x 63 mm
    (5.1 x 3.7 x 2.5 in)
    Camera Weight 850 g (30.0 oz) 497 g (17.5 oz)
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