Canon 1D Mark IV vs Olympus E-M1 III
The Canon EOS-1D Mark IV and the Olympus OM-D E-M1 Mark III are two digital cameras that were revealed to the public, respectively, in October 2009 and February 2020. The 1D Mark IV is a DSLR, while the E-M1 III is a mirrorless interchangeable lens camera. The cameras are based on an APS-H (1D Mark IV) and a Four Thirds (E-M1 III) sensor. The Canon has a resolution of 16 megapixels, whereas the Olympus provides 20.2 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS-1D Mark IV and the Olympus OM-D E-M1 Mark III? 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 1D Mark IV and the Olympus E-M1 III 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 width, height and depth measures are rounded to the nearest millimeter.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-M1 III is considerably smaller (50 percent) than the Canon 1D Mark IV. Moreover, the E-M1 III is substantially lighter (53 percent) than the 1D Mark IV. 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 (1D Mark IV) and the Micro Four Thirds Lens Catalog (E-M1 III). Mirrorless cameras, such as the E-M1 III, 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 1D Mark IV gets 1500 shots out of its Canon LP-E4 battery, while the E-M1 III can take 420 images on a single charge of its Olympus BLH-1 power pack. As can be seen in the images above, the 1D Mark IV 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-M1 III, Olympus provides the HLD-9 vertical grip as an optional accessory (see here on ebay). The power pack in the E-M1 III can be charged via the USB port, which can be very convenient when travelling.
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.
Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon 1D Mark IV | 156 mm | 157 mm | 80 mm | 1230 g | 1500 | Y | Oct 2009 | US$ 4 999 | ebay.com | |
2. | Olympus E-M1 III | 134 mm | 91 mm | 69 mm | 580 g | 420 | Y | Feb 2020 | US$ 1 799 | ebay.com | |
3. | Canon 1D Mark III | 156 mm | 157 mm | 80 mm | 1155 g | 2200 | Y | Feb 2007 | US$ 4 499 | ebay.com | |
4. | Canon 1Ds Mark II | 156 mm | 158 mm | 80 mm | 1215 g | 1200 | Y | Sep 2004 | US$ 7 999 | ebay.com | |
5. | Canon 1D X | 158 mm | 168 mm | 83 mm | 1551 g | 1120 | Y | Oct 2011 | US$ 6 799 | ebay.com | |
6. | Canon 1D X Mark II | 158 mm | 168 mm | 83 mm | 1530 g | 1210 | Y | Feb 2016 | US$ 5 999 | ebay.com | |
7. | Canon 5D Mark II | 152 mm | 114 mm | 75 mm | 850 g | 850 | Y | Sep 2008 | US$ 3 499 | ebay.com | |
8. | Canon 7D | 148 mm | 111 mm | 74 mm | 860 g | 800 | Y | Sep 2009 | US$ 1 699 | ebay.com | |
9. | Canon 50D | 146 mm | 108 mm | 74 mm | 822 g | 800 | Y | Aug 2008 | US$ 1 299 | ebay.com | |
10. | Canon 60D | 145 mm | 106 mm | 79 mm | 755 g | 1100 | Y | Aug 2010 | US$ 1 399 | ebay.com | |
11. | Nikon D3S | 160 mm | 157 mm | 88 mm | 1240 g | 4200 | Y | Oct 2009 | US$ 5 199 | ebay.com | |
12. | Nikon D4 | 160 mm | 157 mm | 91 mm | 1340 g | 2600 | Y | Jan 2012 | US$ 5 999 | ebay.com | |
13. | Olympus E-M1 II | 134 mm | 91 mm | 67 mm | 574 g | 440 | Y | Sep 2016 | US$ 1 999 | ebay.com | |
14. | Olympus E-M1X | 144 mm | 147 mm | 75 mm | 997 g | 870 | Y | Jan 2019 | US$ 2 999 | ebay.com | |
15. | OM System OM-1 | 135 mm | 92 mm | 73 mm | 599 g | 520 | Y | Feb 2022 | US$ 2 199 | ebay.com | |
16. | Panasonic G9 | 137 mm | 97 mm | 92 mm | 658 g | 400 | Y | Nov 2017 | US$ 1 699 | ebay.com | |
17. | Panasonic G90 | 130 mm | 94 mm | 77 mm | 536 g | 290 | Y | Apr 2019 | US$ 999 | ebay.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 III was launched at a markedly lower price (by 64 percent) than the 1D Mark IV, 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. 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 more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon 1D Mark IV features an APS-H sensor and the Olympus E-M1 III a Four Thirds sensor. The sensor area in the E-M1 III is 57 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.3 and 2.0. The sensor in the 1D Mark IV has a native 3:2 aspect ratio, while the one in the E-M1 III offers a 4:3 aspect.
Despite having a smaller sensor, the E-M1 III offers a higher resolution of 20.2 megapixels, compared with 16 MP of the 1D Mark IV. 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 3.34μm versus 5.70μm for the 1D Mark IV). However, it should be noted that the E-M1 III is much more recent (by 10 years and 3 months) than the 1D Mark IV, 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 III 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 III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the E-M1 III for good quality output (200 dots per inch) amounts to 25.9 x 19.4 inches or 65.8 x 49.4 cm, for very good quality (250 dpi) 20.7 x 15.6 inches or 52.7 x 39.5 cm, and for excellent quality (300 dpi) 17.3 x 13 inches or 43.9 x 32.9 cm. The corresponding values for the Canon 1D Mark IV are 24.5 x 16.3 inches or 62.2 x 41.5 cm for good quality, 19.6 x 13.1 inches or 49.7 x 33.2 cm for very good quality, and 16.3 x 10.9 inches or 41.5 x 27.6 cm for excellent quality prints.
The E-M1 III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
Unlike the 1D Mark IV, the E-M1 III has the capacity to capture high quality composite images (80MP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).
The Canon EOS-1D Mark IV has a native sensitivity range from ISO 100 to ISO 12800, which can be extended to ISO 50-102400. The corresponding ISO settings for the Olympus OM-D E-M1 Mark III are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 64-25600.
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.
For many cameras, data on sensor performance has been reported by DXO Mark. 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"). The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon 1D Mark IV | APS-H | 16.0 | 4896 | 3264 | 1080/30p | 22.8 | 12.0 | 1320 | 74 | |
2. | Olympus E-M1 III | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.3 | 13.1 | 1356 | 76 | |
3. | Canon 1D Mark III | APS-H | 10.1 | 3888 | 2592 | none | 22.7 | 11.7 | 1078 | 71 | |
4. | Canon 1Ds Mark II | Full Frame | 16.6 | 4992 | 3328 | none | 23.3 | 11.3 | 1480 | 74 | |
5. | Canon 1D X | Full Frame | 17.9 | 5184 | 3456 | 1080/30p | 23.8 | 11.8 | 2786 | 82 | |
6. | Canon 1D X Mark II | Full Frame | 20.0 | 5472 | 3648 | 4K/60p | 24.1 | 13.5 | 3207 | 88 | |
7. | Canon 5D Mark II | Full Frame | 21.0 | 5616 | 3744 | 1080/30p | 23.7 | 11.9 | 1815 | 79 | |
8. | Canon 7D | APS-C | 17.9 | 5184 | 3456 | 1080/30p | 22.0 | 11.7 | 854 | 66 | |
9. | Canon 50D | APS-C | 15.1 | 4752 | 3168 | none | 21.8 | 11.4 | 696 | 63 | |
10. | Canon 60D | APS-C | 17.9 | 5184 | 3456 | 1080/30p | 22.2 | 11.5 | 813 | 66 | |
11. | Nikon D3S | Full Frame | 12.1 | 4256 | 2832 | 720/24p | 23.5 | 12.0 | 3253 | 82 | |
12. | Nikon D4 | Full Frame | 16.2 | 4928 | 3280 | 1080/30p | 24.7 | 13.1 | 2965 | 89 | |
13. | Olympus E-M1 II | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.7 | 12.8 | 1312 | 80 | |
14. | Olympus E-M1X | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.2 | 13.0 | 1254 | 75 | |
15. | OM System OM-1 | Four Thirds | 20.2 | 5184 | 3888 | 4K/60p | 23.4 | 13.4 | 1553 | 77 | |
16. | Panasonic G9 | Four Thirds | 20.2 | 5184 | 3888 | 4K/60p | 23.1 | 12.8 | 1138 | 74 | |
17. | Panasonic G90 | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.2 | 13.0 | 1273 | 75 | |
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 two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the E-M1 III provides a better video resolution than the 1D Mark IV. It can shoot movie footage at 4K/30p, while the Canon is limited to 1080/30p.
Feature comparison
Apart from body and sensor, cameras can and do differ across a range of features. For example, the E-M1 III has an electronic viewfinder (2360k dots), while the 1D Mark IV 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 viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the E-M1 III has a higher magnification than the one of the 1D Mark IV (0.74x vs 0.58x), 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 1D Mark IV, the Olympus E-M1 III, and comparable cameras.
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 1D Mark IV | optical | Y | 3.0 / 920 | fixed | n | 1/8000s | 10.0/s | n | n | |
2. | Olympus E-M1 III | 2360 | n | 3.0 / 1037 | swivel | Y | 1/8000s | 18.0/s | n | Y | |
3. | Canon 1D Mark III | optical | Y | 3.0 / 230 | fixed | n | 1/8000s | 10.0/s | n | n | |
4. | Canon 1Ds Mark II | optical | Y | 2.0 / 230 | fixed | n | 1/8000s | 4.0/s | n | n | |
5. | Canon 1D X | optical | Y | 3.2 / 1040 | fixed | n | 1/8000s | 14.0/s | n | n | |
6. | Canon 1D X Mark II | optical | Y | 3.2 / 1620 | fixed | Y | 1/8000s | 16.0/s | n | n | |
7. | Canon 5D Mark II | optical | Y | 3.0 / 920 | fixed | n | 1/8000s | 3.9/s | n | n | |
8. | Canon 7D | optical | Y | 3.0 / 920 | fixed | n | 1/8000s | 8.0/s | Y | n | |
9. | Canon 50D | optical | Y | 3.0 / 920 | fixed | n | 1/8000s | 6.3/s | Y | n | |
10. | Canon 60D | optical | Y | 3.0 / 1040 | swivel | n | 1/8000s | 5.3/s | Y | n | |
11. | Nikon D3S | optical | Y | 3.0 / 921 | fixed | n | 1/8000s | 11.0/s | n | n | |
12. | Nikon D4 | optical | Y | 3.2 / 921 | fixed | n | 1/8000s | 11.0/s | n | n | |
13. | Olympus E-M1 II | 2360 | n | 3.0 / 1037 | swivel | Y | 1/8000s | 18.0/s | n | Y | |
14. | Olympus E-M1X | 2360 | n | 3.0 / 1037 | swivel | Y | 1/8000s | 18.0/s | n | Y | |
15. | OM System OM-1 | 5760 | n | 3.0 / 1640 | swivel | Y | 1/8000s | 10.0/s | n | Y | |
16. | Panasonic G9 | 3680 | Y | 3.0 / 1040 | swivel | Y | 1/8000s | 20.0/s | n | Y | |
17. | Panasonic G90 | 2360 | n | 3.0 / 1240 | swivel | Y | 1/4000s | 9.0/s | Y | Y | |
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one. |
One feature that is present on the 1D Mark IV, but is missing on the E-M1 III is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.
The E-M1 III has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the 1D Mark IV does not have a selfie-screen.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 III 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 III 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 1D Mark IV writes its imaging data to Compact Flash or SDHC cards, while the E-M1 III uses SDXC cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails. The E-M1 III supports UHS-II cards on its first slot and UHS-I on its second one, while the 1D Mark IV cannot take advantage of Ultra High Speed SD 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-1D Mark IV and Olympus OM-D E-M1 Mark III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Camera Model |
Hotshoe Port |
Internal Mic / Speaker |
Microphone Port |
Headphone Port |
HDMI Port |
USB Port |
WiFi Support |
NFC Support |
Bluetooth Support |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon 1D Mark IV | Y | stereo / - | Y | - | mini | 2.0 | - | - | - | |
2. | Olympus E-M1 III | Y | stereo / mono | Y | Y | micro | 3.1 | Y | - | Y | |
3. | Canon 1D Mark III | Y | - / - | - | - | - | 2.0 | - | - | - | |
4. | Canon 1Ds Mark II | Y | - / - | - | - | - | 2.0 | - | - | - | |
5. | Canon 1D X | Y | mono / - | Y | - | mini | 2.0 | - | - | - | |
6. | Canon 1D X Mark II | Y | mono / mono | Y | Y | mini | 3.0 | - | - | - | |
7. | Canon 5D Mark II | Y | mono / mono | Y | - | mini | 2.0 | - | - | - | |
8. | Canon 7D | Y | mono / - | Y | - | mini | 2.0 | - | - | - | |
9. | Canon 50D | Y | - / - | - | - | mini | 2.0 | - | - | - | |
10. | Canon 60D | Y | mono / mono | Y | - | mini | 2.0 | - | - | - | |
11. | Nikon D3S | Y | stereo / - | - | - | mini | 2.0 | - | - | - | |
12. | Nikon D4 | Y | mono / mono | Y | Y | micro | 2.0 | - | - | - | |
13. | Olympus E-M1 II | Y | stereo / mono | Y | Y | micro | 3.0 | Y | - | - | |
14. | Olympus E-M1X | Y | stereo / mono | Y | Y | micro | 3.0 | Y | - | Y | |
15. | OM System OM-1 | Y | stereo / mono | Y | Y | micro | 3.0 | Y | - | Y | |
16. | Panasonic G9 | Y | stereo / mono | Y | Y | full | 3.0 | Y | - | Y | |
17. | Panasonic G90 | Y | stereo / mono | Y | Y | micro | 2.0 | Y | - | Y |
It is notable that the E-M1 III offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the 1D Mark IV 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 1D Mark IV and the E-M1 III have been discontinued, but can regularly be found used on ebay. The E-M1 III was replaced by the OM System OM-1, while the 1D Mark IV does not have a direct successor. Further information on the features and operation of the 1D Mark IV and E-M1 III can be found, respectively, in the Canon 1D Mark IV Manual (free pdf) or the online Olympus E-M1 III Manual.
Review summary
So what is the bottom line? Is the Canon 1D Mark IV better than the Olympus E-M1 III or vice versa? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the Canon EOS-1D Mark IV:
- 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.
- More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
- Longer lasting: Can take more shots (1500 versus 420) on a single battery charge.
- More heavily discounted: Has been available for much longer (launched in October 2009).
Arguments in favor of the Olympus OM-D E-M1 Mark III:
- More detail: Has more megapixels (20.2 vs 16MP), which boosts linear resolution by 10%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- High quality composites: Can combine several shots after pixel-shifting its sensor.
- Better video: Provides higher definition movie capture (4K/30p vs 1080/30p).
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- More framing info: Has an electronic viewfinder that displays shooting data.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.74x vs 0.58x).
- More detailed LCD: Has a higher resolution rear screen (1037k vs 920k dots).
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Faster burst: Shoots at higher frequency (18 vs 10 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 (134x91mm vs 156x157mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 650g or 53 percent) and is thus easier to take along.
- Easier travel charging: Can be conveniently charged via its USB port.
- 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 (3.1 vs 2.0).
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- Faster buffer clearing: Supports Ultra High Speed (UHS-II and UHS-I) SDXC cards.
- More affordable: Was introduced into a lower priced category (64 percent cheaper at launch).
- More modern: Reflects 10 years and 3 months of technical progress since the 1D Mark IV launch.
If the number of relative strengths (bullet points above) is taken as a guide, the E-M1 III is the clear winner of the contest (26 : 6 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. A professional wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.
How about other alternatives? Do the specifications of the Canon 1D Mark IV and the Olympus E-M1 III 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 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 1D Mark IV or the E-M1 III. 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 why expert reviews are important. The following table reports the overall ratings of the cameras as published by some of the major camera 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.
Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon 1D Mark IV | 5/5 | .. | .. | 89/100 | .. | .. | Oct 2009 | US$ 4 999 | ebay.com | |
2. | Olympus E-M1 III | 5/5 | .. | 5/5 | 83/100 | 4.5/5 | 4/5 | Feb 2020 | US$ 1 799 | ebay.com | |
3. | Canon 1D Mark III | .. | .. | .. | .. | .. | .. | Feb 2007 | US$ 4 499 | ebay.com | |
4. | Canon 1Ds Mark II | .. | .. | .. | + + | .. | .. | Sep 2004 | US$ 7 999 | ebay.com | |
5. | Canon 1D X | 5/5 | .. | .. | .. | 4.5/5 | 4.5/5 | Oct 2011 | US$ 6 799 | ebay.com | |
6. | Canon 1D X Mark II | .. | .. | 4.5/5 | 89/100 | 4.5/5 | 4.5/5 | Feb 2016 | US$ 5 999 | ebay.com | |
7. | Canon 5D Mark II | 4/5 | 91/100 | .. | 79/100 | 4/5 | .. | Sep 2008 | US$ 3 499 | ebay.com | |
8. | Canon 7D | 5/5 | + + | .. | 84/100 | 4.5/5 | 4.5/5 | Sep 2009 | US$ 1 699 | ebay.com | |
9. | Canon 50D | .. | + + | .. | + + | 4.5/5 | 4.5/5 | Aug 2008 | US$ 1 299 | ebay.com | |
10. | Canon 60D | 5/5 | + | .. | 79/100 | 4/5 | 4.5/5 | Aug 2010 | US$ 1 399 | ebay.com | |
11. | Nikon D3S | 5/5 | .. | .. | 89/100 | 4.5/5 | 5/5 | Oct 2009 | US$ 5 199 | ebay.com | |
12. | Nikon D4 | .. | .. | .. | .. | 4.5/5 | 4.5/5 | Jan 2012 | US$ 5 999 | ebay.com | |
13. | Olympus E-M1 II | 5/5 | + + | 5/5 | 85/100 | 4.5/5 | 4.5/5 | Sep 2016 | US$ 1 999 | ebay.com | |
14. | Olympus E-M1X | 4.5/5 | o | 5/5 | 85/100 | 4.5/5 | .. | Jan 2019 | US$ 2 999 | ebay.com | |
15. | OM System OM-1 | 5/5 | .. | .. | 87/100 | 5/5 | 4.5/5 | Feb 2022 | US$ 2 199 | ebay.com | |
16. | Panasonic G9 | .. | + + | 5/5 | 85/100 | 5/5 | 5/5 | Nov 2017 | US$ 1 699 | ebay.com | |
17. | Panasonic G90 | 4.5/5 | + | 4.5/5 | 83/100 | 4.5/5 | 4.5/5 | Apr 2019 | US$ 999 | ebay.com | |
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
The review scores listed above should be treated with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.
Other camera comparisons
Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just use the search menu below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
- Canon 1D Mark IV vs Canon G9 X Mark II
- Canon 1D Mark IV vs Canon SX710
- Canon 1D Mark IV vs Leica V-LUX 1
- Canon 1D Mark IV vs Nikon D610
- Canon 1D Mark IV vs Olympus E-PM1
- Canon 1D Mark IV vs Sony H300
- Canon G1 X vs Olympus E-M1 III
- Hasselblad X2D 100C vs Olympus E-M1 III
- Olympus E-M1 III vs Olympus E-M5
- Olympus E-M1 III vs Panasonic GF7
- Olympus E-M1 III vs Panasonic GX85
- Olympus E-M1 III vs Pentax K-50
Specifications: Canon 1D Mark IV vs Olympus E-M1 III
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 Model | Canon 1D Mark IV | Olympus E-M1 III |
---|---|---|
Camera Type | Digital single lens reflex | Mirrorless system camera |
Camera Lens | Canon EF mount lenses | Micro Four Thirds lenses |
Launch Date | October 2009 | February 2020 |
Launch Price | USD 4,999 | USD 1,799 |
Sensor Specs | Canon 1D Mark IV | Olympus E-M1 III |
Sensor Technology | CMOS | CMOS |
Sensor Format | APS-H Sensor | Four Thirds Sensor |
Sensor Size | 27.9 x 18.6 mm | 17.3 x 13.0 mm |
Sensor Area | 518.94 mm2 | 224.9 mm2 |
Sensor Diagonal | 33.5 mm | 21.6 mm |
Crop Factor | 1.3x | 2.0x |
Sensor Resolution | 16 Megapixels | 20.2 Megapixels |
Image Resolution | 4896 x 3264 pixels | 5184 x 3888 pixels |
Pixel Pitch | 5.70 μm | 3.34 μm |
Pixel Density | 3.08 MP/cm2 | 8.96 MP/cm2 |
Moiré control | Anti-Alias filter | no AA filter |
Movie Capability | 1080/30p Video | 4K/30p Video |
ISO Setting | 100 - 12,800 ISO | 200 - 25,600 ISO |
ISO Boost | 50 - 102,400 ISO | 64 - 25,600 ISO |
Image Processor | DIGIC IV | TruePic IX |
DXO Sensor Quality (score) | 74 | .. |
DXO Color Depth (bits) | 22.8 | .. |
DXO Dynamic Range (EV) | 12.0 | .. |
DXO Low Light (ISO) | 1320 | .. |
Screen Specs | Canon 1D Mark IV | Olympus E-M1 III |
Viewfinder Type | Optical viewfinder | Electronic viewfinder |
Viewfinder Field of View | 100% | 100% |
Viewfinder Magnification | 0.58x | 0.74x |
Viewfinder Resolution | 2360k dots | |
Top-Level Screen | Control Panel | no Top Display |
LCD Framing | Live View | Live View |
Rear LCD Size | 3.0inch | 3.0inch |
LCD Resolution | 920k dots | 1037k dots |
LCD Attachment | Fixed screen | Swivel screen |
Touch Input | no Touchscreen | Touchscreen |
Shooting Specs | Canon 1D Mark IV | Olympus E-M1 III |
Focus System | Phase-detect AF | On-Sensor Phase-detect |
Manual Focusing Aid | no Peaking Feature | Focus Peaking |
Max Shutter Speed (mechanical) | 1/8000s | 1/8000s |
Continuous Shooting | 10 shutter flaps/s | 18 shutter flaps/s |
Shutter Life Expectancy | 300 000 actuations | 400 000 actuations |
Electronic Shutter | no E-Shutter | up to 1/32000s |
Time-Lapse Photography | no Intervalometer | Intervalometer built-in |
Image Stabilization | Lens stabilization only | In-body stabilization |
Fill Flash | no On-Board Flash | no On-Board Flash |
Storage Medium | CF or SDHC cards | SDXC cards |
Single or Dual Card Slots | Dual card slots | Dual card slots |
UHS card support | no | Single UHS-II |
Connectivity Specs | Canon 1D Mark IV | Olympus E-M1 III |
External Flash | Hotshoe | Hotshoe |
Studio Flash | PC Sync socket | PC Sync socket |
USB Connector | USB 2.0 | USB 3.1 |
HDMI Port | mini HDMI | micro HDMI |
Microphone Port | External MIC port | External MIC port |
Headphone Socket | no Headphone port | Headphone port |
Wifi Support | no Wifi | Wifi built-in |
Bluetooth Support | no Bluetooth | Bluetooth built-in |
Body Specs | Canon 1D Mark IV | Olympus E-M1 III |
Environmental Sealing | Weathersealed body | Weathersealed body |
Battery Type | Canon LP-E4 | Olympus BLH-1 |
Battery Life (CIPA) | 1500 shots per charge | 420 shots per charge |
In-Camera Charging | no USB charging | USB charging |
Body Dimensions |
156 x 157 x 80 mm (6.1 x 6.2 x 3.1 in) |
134 x 91 x 69 mm (5.3 x 3.6 x 2.7 in) |
Camera Weight | 1230 g (43.4 oz) | 580 g (20.5 oz) |
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