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Canon 1Ds Mark III vs R5

The Canon EOS-1Ds Mark III and the Canon EOS R5 are two digital cameras that were announced, respectively, in August 2007 and July 2020. The 1Ds Mark III is a DSLR, while the R5 is a mirrorless interchangeable lens camera. Both cameras are equipped with a full frame sensor. The 1Ds Mark III has a resolution of 21 megapixels, whereas the R5 provides 44.8 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
Canon R5
Canon 1Ds Mark III   Canon R5
Digital single lens reflex Mirrorless system camera
Canon EF mount lenses Canon RF mount lenses
21 MP – Full Frame sensor 44.8 MP – Full Frame sensor
no Video 8K/30p Video
ISO 100-1,600 (50 - 3,200) ISO 100-51,200 (50 - 102,400)
Optical viewfinder Electronic viewfinder (5760k dots)
3.0" LCD – 230k dots 3.0" LCD – 2100k dots
Fixed screen (not touch-sensitive) Swivel touchscreen
5 shutter flaps per second 10 shutter flaps per second
Lens stabilization onlyIn-body stabilization
Weathersealed bodyWeathersealed body
1800 shots per battery charge320 shots per battery charge
150 x 160 x 80 mm, 1385 g 138 x 98 x 88 mm, 738 g
Canon 1Ds Mark III:
Check Ebay offers
Canon R5:
Check Amazon price

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS-1Ds Mark III and the Canon EOS R5? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

Body comparison

The side-by-side display below illustrates the physical size and weight of the Canon 1Ds Mark III and the Canon R5. 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 Canon R5
Compare 1Ds Mark III versus R5 top
Comparison 1Ds Mark III or R5 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon R5 is considerably smaller (44 percent) than the Canon 1Ds Mark III. Moreover, the R5 is substantially lighter (47 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. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the 1Ds Mark III gets 1800 shots out of its LP-E4 battery, while the R5 can take 320 images on a single charge of its LP-E6NH 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 R5, Canon provides the BG-R10 vertical grip as an optional accessory (see here on eBay). The power pack in the R5 can be charged via the USB port, which can be very convenient when travelling.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.

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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 7,999i
2.
 
Canon R5 138 mm 98 mm 88 mm 738 g 320 Y Jul 2020 3,899 i
3.
 
Canon 1D X Mark III 158 mm 168 mm 83 mm 1440 g 2850 Y Jan 2020 6,499 i
4.
 
Canon 1D X Mark II 158 mm 168 mm 83 mm 1530 g 1210 Y Feb 2016 5,999i
5.
 
Canon 1D C 158 mm 164 mm 83 mm 1545 g 1120 Y Apr 2012 14,999i
6.
 
Canon 5D Mark III 152 mm 116 mm 76 mm 950 g 950 Y Mar 2012 3,499i
7.
 
Canon 1D X 158 mm 168 mm 83 mm 1551 g 1120 Y Oct 2011 6,799i
8.
 
Canon 5D Mark II 152 mm 114 mm 75 mm 850 g 850 Y Sep 2008 3,499i
9.
 
Canon 1D Mark III 156 mm 157 mm 80 mm 1155 g 2200 Y Feb 2007 4,499i
10.
 
Canon 1Ds Mark II 156 mm 158 mm 80 mm 1215 g 1200 Y Sep 2004 7,999i
11.
 
Canon 1Ds 156 mm 158 mm 80 mm 1265 g 600 Y Sep 2002 8,999i
12.
 
Nikon Z7 134 mm 101 mm 67 mm 675 g 330 Y Aug 2018 3,399i
13.
 
Nikon D3X 160 mm 157 mm 88 mm 1260 g 4400 Y Dec 2008 7,999i
14.
 
Panasonic S1R 149 mm 110 mm 97 mm 1016 g 380 Y Feb 2019 3,699 i
15.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 3,499 i
16.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199i
17.
 
Sony A99 II 143 mm 104 mm 76 mm 849 g 490 Y Sep 2016 3,199 i
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 R5 was launched at a markedly lower price (by 51 percent) than the 1Ds Mark III, 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 size of the sensor inside a digital camera is one of the key determinants 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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.

Both cameras under consideration feature a full frame sensor and have a format factor (sometimes also referred to as "crop factor") of 1.0. Within the spectrum of camera sensors, this places the review cameras among the large-sensor cameras that aim for top notch image quality. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

In terms of underlying technology, both cameras are build around CMOS sensors.

Canon 1Ds Mark III and Canon R5 sensor measures

While the two cameras under review share the same sensor size, the R5 offers a higher resolution of 44.8 megapixels, compared with 21 MP of the 1Ds Mark III. This megapixels advantage translates into a 46 percent gain in linear resolution. On the other hand, these sensor specs imply that the R5 has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 4.39μm versus 6.41μm for the 1Ds Mark III). However, it should be noted that the R5 is much more recent (by 12 years and 10 months) than the 1Ds Mark III, and its sensor will have benefitted from technological advances during this time that compensate for the smaller pixel size.

The resolution advantage of the Canon R5 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the R5 for good quality output (200 dots per inch) amounts to 41 x 27.3 inches or 104 x 69.4 cm, for very good quality (250 dpi) 32.8 x 21.9 inches or 83.2 x 55.5 cm, and for excellent quality (300 dpi) 27.3 x 18.2 inches or 69.4 x 46.3 cm. The corresponding values for the Canon 1Ds Mark III are 28.1 x 18.7 inches or 71.3 x 47.5 cm for good quality, 22.5 x 15 inches or 57.1 x 38 cm for very good quality, and 18.7 x 12.5 inches or 47.5 x 31.7 cm for excellent quality prints.

The R5 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon EOS-1Ds Mark III has a native sensitivity range from ISO 100 to ISO 1600, which can be extended to ISO 50-3200. The corresponding ISO settings for the Canon EOS R5 are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 50-102400.

1Ds Mark III versus R5 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). Of the two cameras under consideration, the R5 offers substantially better image quality than the 1Ds Mark III (overall score 15 points higher). The advantage is based on 1.3 bits higher color depth, 2.6 EV in additional dynamic range, and 0.9 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.
 
Canon R5 Full Frame 44.8 8192 54648K/30p25.314.6304295
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 Z7 Full Frame 45.4 8256 55044K/30p26.314.6266899
13.
 
Nikon D3X Full Frame 24.4 6048 4032none24.713.7199288
14.
 
Panasonic S1R Full Frame 46.7 8368 55844K/60p26.414.13525100
15.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.8334499
16.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
17.
 
Sony A99 II Full Frame 42.2 7952 53044K/30p25.413.4231792
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 R5 indeed provides for movie recording, while the 1Ds Mark III does not. The highest resolution format that the R5 can use is 8K/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the R5 has an electronic viewfinder (5760k dots), while the 1Ds Mark III 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%), as well as the same magnification (0.76x). The table below summarizes some of the other core capabilities of the Canon 1Ds Mark III and Canon R5 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.
 
Canon R55760 Y3.2 / 2100 swivel Y 1/8000s 10.0/s n 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 Z73690 Y3.2 / 2100 tilting Y 1/8000s 9.0/s n Y
13.
 
Nikon D3Xoptical Y3.0 / 922 fixed n 1/8000s 5.0/s n n
14.
 
Panasonic S1R5760 Y3.2 / 2100 full-flex Y 1/8000s 9.0/s n Y
15.
 
Sony A7R IV5760 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
16.
 
Sony A7R III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
17.
 
Sony A99 II2400 Y3.0 / 1229 full-flex n 1/8000s 12.0/s n Y
Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The R5 has a touchscreen, while the 1Ds Mark III has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The R5 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 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 R5 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 Canon R5 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 1Ds Mark III writes its imaging data to Compact Flash or SDHC cards, while the R5 uses CFexpress or SDXC cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails. The R5 supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the 1Ds Mark III 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-1Ds Mark III and Canon EOS R5 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.
 
Canon R5Ymono / monoYYmicro3.2Y-Y
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 Z7Ystereo / monoYYmicro3.1Y-Y
13.
 
Nikon D3XY- / ---mini2.0---
14.
 
Panasonic S1RYstereo / monoYYfull3.1Y-Y
15.
 
Sony A7R IVYstereo / monoYYmicro3.1YYY
16.
 
Sony A7R IIIYstereo / monoYYmicro3.1YYY
17.
 
Sony A99 IIYstereo / monoYYmicro2.0YYY

It is notable that the R5 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the 1Ds Mark III does not provide wifi capability.

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

The R5 is a recent model that features in the current product line-up of Canon. In contrast, the 1Ds Mark III has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the 1Ds Mark III was succeeded by the Canon 1DX. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon website.

Review summary

So how do things add up? Is the Canon 1Ds Mark III better than the Canon R5 or vice versa? The listing below highlights the relative strengths of the two models.


Advantages of the Canon EOS-1Ds Mark III:

  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
  • Longer lasting: Can take more shots (1800 versus 320) on a single battery charge.
  • More heavily discounted: Has been available for much longer (launched in August 2007).


Reasons to prefer the Canon EOS R5:

  • More detail: Has more megapixels (44.8 vs 21MP), which boosts linear resolution by 46%.
  • Better image quality: Scores substantially higher (15 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (1.3 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (2.6 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (0.9 stops ISO advantage).
  • Broader imaging potential: Can capture not only stills but also 8K/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.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (2100k vs 230k 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 (10 vs 5 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 (138x98mm vs 150x160mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 647g or 47 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 (3.2 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: Has an SD card interface that supports the UHS-II standard.
  • More affordable: Was introduced into a lower priced category (51 percent cheaper at launch).
  • More modern: Reflects 12 years and 10 months of technical progress since the 1Ds Mark III launch.

If the count of individual advantages (bullet points above) is taken as a guide, the R5 is the clear winner of the contest (27 : 4 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 04:27 R5

How about other alternatives? Do the specifications of the Canon 1Ds Mark III and the Canon R5 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the 1Ds Mark III and the R5 in practical situations. 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 why expert reviews are important. 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 7,999i
2.
 
Canon R54.5/5+4/591/1004.5/54.5/5 Jul 2020 3,899 i
3.
 
Canon 1D X Mark III..+ +5/5..4.5/54/5 Jan 2020 6,499 i
4.
 
Canon 1D X Mark II....4.5/589/1004.5/54.5/5 Feb 2016 5,999i
5.
 
Canon 1D C............ Apr 2012 14,999i
6.
 
Canon 5D Mark III..+ +..82/1004.5/54.5/5 Mar 2012 3,499i
7.
 
Canon 1D X5/5......4.5/54.5/5 Oct 2011 6,799i
8.
 
Canon 5D Mark II4/591/100..79/1004/5.. Sep 2008 3,499i
9.
 
Canon 1D Mark III............ Feb 2007 4,499i
10.
 
Canon 1Ds Mark II......+ +.... Sep 2004 7,999i
11.
 
Canon 1Ds......+ +.... Sep 2002 8,999i
12.
 
Nikon Z75/5+4.8/589/1004.5/55/5 Aug 2018 3,399i
13.
 
Nikon D3X......86/1004/55/5 Dec 2008 7,999i
14.
 
Panasonic S1R4.5/5..4.6/589/1004.5/54.5/5 Feb 2019 3,699 i
15.
 
Sony A7R IV5/5+4.5/591/1004.5/55/5 Jul 2019 3,499 i
16.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 3,199i
17.
 
Sony A99 II....4.5/585/1004.5/54.5/5 Sep 2016 3,199 i
Notes: (+ +) 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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, 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.

Canon 1Ds Mark III:
Check Ebay offers
Canon R5:
Check Amazon price

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. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Canon 1Ds Mark III vs Canon R5

    Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.

    Camera Specifications
    Camera Model Canon 1Ds Mark III Canon R5
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Canon EF mount lenses Canon RF mount lenses
    Launch Date August 2007 July 2020
    Launch Price USD 7,999 USD 3,899
    Sensor Specs Canon 1Ds Mark III Canon R5
    Sensor Technology CMOS CMOS
    Sensor Format Full Frame Sensor Full Frame Sensor
    Sensor Size 36.0 x 24.0 mm 36.0 x 24.0 mm
    Sensor Area 864 mm2 864 mm2
    Sensor Diagonal 43.3 mm 43.3 mm
    Crop Factor 1.0x 1.0x
    Sensor Resolution 21 Megapixels 44.8 Megapixels
    Image Resolution 5616 x 3744 pixels 8192 x 5464 pixels
    Pixel Pitch 6.41 μm 4.39 μm
    Pixel Density 2.43 MP/cm2 5.18 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability no Video 8K/30p Video
    ISO Setting 100 - 1,600 ISO 100 - 51,200 ISO
    ISO Boost 50 - 3,200 ISO 50 - 102,400 ISO
    Image Processor DIGIC III (Dual) DIGIC X
    DXO Sensor Quality (score) 80 95
    DXO Color Depth (bits) 24.0 25.3
    DXO Dynamic Range (EV) 12.0 14.6
    DXO Low Light (ISO) 1663 3042
    Screen Specs Canon 1Ds Mark III Canon R5
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.76x 0.76x
    Viewfinder Resolution 5760k dots
    Top-Level Screen Control Panel Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.2inch
    LCD Resolution 230k dots 2100k dots
    LCD Attachment Fixed screen Swivel screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Canon 1Ds Mark III Canon R5
    Focus System Phase-detect AF On-Sensor Phase-detect
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/8000s
    Continuous Shooting 5 shutter flaps/s 10 shutter flaps/s
    Shutter Life Expectancy300 000 actuations300 000 actuations
    Electronic Shutterno E-Shutterup to 1/8000s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium CF or SDHC cards CFexpress or SDXC cards
    Second Storage Option Dual card slots Dual card slots
    UHS card support no UHS-II
    Connectivity Specs Canon 1Ds Mark III Canon R5
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector USB 2.0 USB 3.2
    HDMI Port no HDMI micro HDMI
    Microphone Port no MIC socket 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 1Ds Mark III Canon R5
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type LP-E4 LP-E6NH
    Battery Life (CIPA)1800 shots per charge320 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 150 x 160 x 80 mm
    (5.9 x 6.3 x 3.1 in)
    138 x 98 x 88 mm
    (5.4 x 3.9 x 3.5 in)
    Camera Weight 1385 g (48.9 oz) 738 g (26.0 oz)
    Canon 1Ds Mark III:
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    Canon R5:
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