Canon R vs Pentax 645D
The Canon EOS R and the Pentax 645D are two digital cameras that were officially introduced, respectively, in September 2018 and March 2010. The Canon R is a mirrorless interchangeable lens camera, while the 645D is a DSLR. The cameras are based on a full frame (Canon R) and a medium format (645D) sensor. The Canon has a resolution of 30.1 megapixels, whereas the Pentax provides 39.5 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 R and the Pentax 645D? 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 R and the Pentax 645D. 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 Pentax 645D is notably larger (34 percent) than the Canon R. Moreover, the 645D is substantially heavier (124 percent) than the Canon R. 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 Canon R gets 370 shots out of its Canon LP-E6N battery, while the 645D can take 800 images on a single charge of its Pentax D-LI90 power pack. The power pack in the Canon R can be charged via the USB port, so that it is not always necessary to take the battery charger along 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.
Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon R | 139 mm | 98 mm | 84 mm | 660 g | 370 | Y | Sep 2018 | US$ 2 299 | ebay.com | |
2. | Pentax 645D | 156 mm | 117 mm | 119 mm | 1480 g | 800 | Y | Mar 2010 | US$ 9 995 | ebay.com | |
3. | Canon 1D Mark IV | 156 mm | 157 mm | 80 mm | 1230 g | 1500 | Y | Oct 2009 | US$ 4 999 | ebay.com | |
4. | Canon 1D X | 158 mm | 168 mm | 83 mm | 1551 g | 1120 | Y | Oct 2011 | US$ 6 799 | ebay.com | |
5. | Canon 6D | 145 mm | 111 mm | 71 mm | 770 g | 1090 | Y | Sep 2012 | US$ 2 099 | ebay.com | |
6. | Canon 6D Mark II | 144 mm | 111 mm | 75 mm | 765 g | 1200 | Y | Jun 2017 | US$ 1 999 | amazon.com | |
7. | Canon R6 | 138 mm | 98 mm | 88 mm | 680 g | 360 | Y | Jul 2020 | US$ 2 499 | amazon.com | |
8. | Canon RP | 133 mm | 85 mm | 70 mm | 485 g | 250 | n | Feb 2019 | US$ 1 299 | amazon.com | |
9. | Leica M10 | 139 mm | 80 mm | 39 mm | 660 g | 210 | Y | Jan 2017 | US$ 6 599 | ebay.com | |
10. | Leica Q2 | 130 mm | 80 mm | 92 mm | 718 g | 370 | Y | Mar 2019 | US$ 4 999 | amazon.com | |
11. | Leica S Typ 006 | 160 mm | 120 mm | 80 mm | 1260 g | .. | Y | Sep 2012 | US$ 21 949 | ebay.com | |
12. | Nikon D3S | 160 mm | 157 mm | 88 mm | 1240 g | 4200 | Y | Oct 2009 | US$ 5 199 | ebay.com | |
13. | Nikon D750 | 141 mm | 113 mm | 78 mm | 750 g | 1230 | Y | Sep 2014 | US$ 2 299 | ebay.com | |
14. | Nikon Z6 | 134 mm | 101 mm | 67 mm | 675 g | 310 | Y | Aug 2018 | US$ 1 999 | ebay.com | |
15. | Pentax 645Z | 156 mm | 117 mm | 123 mm | 1550 g | 650 | Y | Apr 2014 | US$ 8 499 | ebay.com | |
16. | Sony A7 III | 127 mm | 96 mm | 74 mm | 650 g | 610 | Y | Feb 2018 | US$ 1 999 | amazon.com | |
17. | Sony A7R | 127 mm | 94 mm | 48 mm | 465 g | 340 | Y | Oct 2013 | US$ 2 299 | ebay.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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The Canon R was launched at a markedly lower price (by 77 percent) than the 645D, 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 imaging sensor is a crucial determinant 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.
Of the two cameras under consideration, the Canon R features a full frame sensor and the Pentax 645D a medium format sensor. The sensor area in the 645D is 68 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 0.79. The sensor in the Canon R has a native 3:2 aspect ratio, while the one in the 645D offers a 4:3 aspect.
With 39.5MP, the 645D offers a higher resolution than the Canon R (30.1MP), but the 645D nevertheless has larger individual pixels (pixel pitch of 6.06μm versus 5.36μm for the Canon R) due to its larger sensor. However, the Canon R is a much more recent model (by 8 years and 5 months) than the 645D, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the 645D has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Pentax 645D implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 645D for good quality output (200 dots per inch) amounts to 36.3 x 27.2 inches or 92.3 x 69.1 cm, for very good quality (250 dpi) 29.1 x 21.8 inches or 73.8 x 55.3 cm, and for excellent quality (300 dpi) 24.2 x 18.1 inches or 61.5 x 46.1 cm. The corresponding values for the Canon R are 33.6 x 22.4 inches or 85.3 x 56.9 cm for good quality, 26.9 x 17.9 inches or 68.3 x 45.5 cm for very good quality, and 22.4 x 14.9 inches or 56.9 x 37.9 cm for excellent quality prints.
The Canon R has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Canon EOS R has a native sensitivity range from ISO 100 to ISO 40000, which can be extended to ISO 50-102400. The corresponding ISO settings for the Pentax 645D are ISO 100 to ISO 1600 (no boost).
In terms of underlying technology, the Canon R is build around a CMOS sensor, while the 645D uses a CCD imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
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 review, the Canon R has a notably higher overall DXO score than the 645D (overall score 7 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 0.1 bits lower color depth, 0.9 EV in additional dynamic range, and 1.1 stops in additional low light sensitivity. 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 R | Full Frame | 30.1 | 6720 | 4480 | 4K/30p | 24.5 | 13.5 | 2742 | 89 | |
2. | Pentax 645D | Medium Format | 39.5 | 7264 | 5440 | none | 24.6 | 12.6 | 1262 | 82 | |
3. | Canon 1D Mark IV | APS-H | 16.0 | 4896 | 3264 | 1080/30p | 22.8 | 12.0 | 1320 | 74 | |
4. | Canon 1D X | Full Frame | 17.9 | 5184 | 3456 | 1080/30p | 23.8 | 11.8 | 2786 | 82 | |
5. | Canon 6D | Full Frame | 20.0 | 5472 | 3648 | 1080/30p | 23.8 | 12.1 | 2340 | 82 | |
6. | Canon 6D Mark II | Full Frame | 26.0 | 6240 | 4160 | 1080/60p | 24.4 | 11.9 | 2862 | 85 | |
7. | Canon R6 | Full Frame | 20.0 | 5472 | 3648 | 4k/60p | 24.2 | 14.3 | 3394 | 90 | |
8. | Canon RP | Full Frame | 26.0 | 6240 | 4160 | 4K/30p | 24.3 | 11.9 | 2977 | 85 | |
9. | Leica M10 | Full Frame | 23.8 | 5952 | 3992 | none | 24.4 | 13.2 | 2133 | 86 | |
10. | Leica Q2 | Full Frame | 46.7 | 8368 | 5584 | 4K/30p | 26.4 | 13.5 | 2491 | 96 | |
11. | Leica S Typ 006 | Medium Format | 37.5 | 7500 | 5000 | none | 23.9 | 12.2 | 824 | 76 | |
12. | Nikon D3S | Full Frame | 12.1 | 4256 | 2832 | 720/24p | 23.5 | 12.0 | 3253 | 82 | |
13. | Nikon D750 | Full Frame | 24.2 | 6016 | 4016 | 1080/60p | 24.8 | 14.5 | 2956 | 93 | |
14. | Nikon Z6 | Full Frame | 24.3 | 6048 | 4024 | 4K/30p | 25.3 | 14.3 | 3299 | 95 | |
15. | Pentax 645Z | Medium Format | 51.1 | 8256 | 6192 | 1080/60i | 26.0 | 14.7 | 4505 | 101 | |
16. | Sony A7 III | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 25.0 | 14.7 | 3730 | 96 | |
17. | Sony A7R | Full Frame | 36.2 | 7360 | 4912 | 1080/60p | 25.6 | 14.1 | 2746 | 95 |
Many modern cameras are not only capable of taking still images, but also of capturing video footage. The Canon R indeed provides movie recording capabilities, while the 645D does not. The highest resolution format that the Canon R can use is 4K/30p.
Feature comparison
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the Canon R has an electronic viewfinder (3690k dots), while the 645D 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 Canon R offers a wider field of view (100%) than the one in the 645D (98%), so that a larger proportion of the captured image is visible in the finder. On the other hand, the viewfinder of the 645D has a higher magnification (0.78x vs 0.76x), 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 R, the Pentax 645D, 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 R | 3690 | Y | 3.2 / 2100 | swivel | Y | 1/8000s | 8.0/s | n | n | |
2. | Pentax 645D | optical | Y | 3.0 / 921 | fixed | n | 1/4000s | 1.1/s | n | n | |
3. | Canon 1D Mark IV | optical | Y | 3.0 / 920 | fixed | n | 1/8000s | 10.0/s | n | n | |
4. | Canon 1D X | optical | Y | 3.2 / 1040 | fixed | n | 1/8000s | 14.0/s | n | n | |
5. | Canon 6D | optical | Y | 3.0 / 1040 | fixed | n | 1/4000s | 4.5/s | n | n | |
6. | Canon 6D Mark II | optical | Y | 3.0 / 1040 | swivel | Y | 1/4000s | 6.5/s | n | n | |
7. | Canon R6 | 3690 | n | 3.0 / 1620 | swivel | Y | 1/8000s | 12.0/s | n | Y | |
8. | Canon RP | 2360 | n | 3.0 / 1040 | swivel | Y | 1/4000s | 5.0/s | n | n | |
9. | Leica M10 | optical | n | 3.0 / 1037 | fixed | n | 1/4000s | 5.0/s | n | n | |
10. | Leica Q2 | 3680 | n | 3.0 / 1040 | fixed | Y | 1/2000s | 10.0/s | n | Y | |
11. | Leica S Typ 006 | optical | Y | 3.0 / 922 | fixed | n | 1/4000s | 1.5/s | n | n | |
12. | Nikon D3S | optical | Y | 3.0 / 921 | fixed | n | 1/8000s | 11.0/s | n | n | |
13. | Nikon D750 | optical | Y | 3.2 / 1229 | tilting | n | 1/4000s | 6.0/s | Y | n | |
14. | Nikon Z6 | 3690 | Y | 3.2 / 2100 | tilting | Y | 1/8000s | 12.0/s | n | Y | |
15. | Pentax 645Z | optical | Y | 3.2 / 1037 | tilting | n | 1/4000s | 3.0/s | n | n | |
16. | Sony A7 III | 2359 | n | 3.0 / 922 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
17. | Sony A7R | 2400 | n | 3.0 / 1230 | tilting | n | 1/8000s | 4.0/s | n | n | |
Note: *) 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 Canon R has a touchscreen, while the 645D has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.
The Canon R has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the 645D 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 Canon R 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 Pentax 645D 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.
Concerning the storage of imaging data, both the Canon R and the 645D write their files to SDXC cards. The 645D features dual card slots, which can be very useful in case a memory card fails. In contrast, the Canon R only has one slot. The Canon R supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the 645D 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 R and Pentax 645D 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 R | Y | stereo / mono | Y | Y | mini | 3.1 | Y | - | Y | |
2. | Pentax 645D | Y | stereo / - | - | - | - | 2.0 | - | - | - | |
3. | Canon 1D Mark IV | Y | stereo / - | Y | - | mini | 2.0 | - | - | - | |
4. | Canon 1D X | Y | mono / - | Y | - | mini | 2.0 | - | - | - | |
5. | Canon 6D | Y | mono / mono | Y | - | mini | 2.0 | Y | - | - | |
6. | Canon 6D Mark II | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | Y | |
7. | Canon R6 | Y | mono / mono | Y | Y | micro | 3.2 | Y | - | Y | |
8. | Canon RP | Y | stereo / mono | Y | Y | micro | 2.0 | Y | - | Y | |
9. | Leica M10 | Y | - / - | - | - | - | - | Y | - | - | |
10. | Leica Q2 | Y | stereo / mono | - | - | - | - | Y | - | Y | |
11. | Leica S Typ 006 | Y | - / - | - | - | mini | 2.0 | - | - | - | |
12. | Nikon D3S | Y | stereo / - | - | - | mini | 2.0 | - | - | - | |
13. | Nikon D750 | Y | stereo / mono | Y | Y | mini | 2.0 | Y | - | - | |
14. | Nikon Z6 | Y | stereo / mono | Y | Y | micro | 3.1 | Y | - | Y | |
15. | Pentax 645Z | Y | stereo / mono | Y | - | mini | 3.0 | - | - | - | |
16. | Sony A7 III | Y | stereo / mono | Y | Y | micro | 3.1 | Y | Y | Y | |
17. | Sony A7R | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - |
It is notable that the Canon R offers wifi support, while the 645D does not. Wifi can be a very convenient means to transfer image data to an off-camera location.
Studio photographers will appreciate that the Pentax 645D (unlike the Canon R) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the Canon R and the 645D have been discontinued, but can regularly be found used on ebay. The 645D was replaced by the Pentax 645Z, while the Canon R does not have a direct successor. Further information on the features and operation of the Canon R and 645D can be found, respectively, in the Canon R Manual (free pdf) or the online Pentax 645D Manual.
Review summary
So what conclusions can be drawn? Is there a clear favorite between the Canon R and the Pentax 645D? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of the Canon EOS R:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better image quality: Scores markedly higher (7 points) in the DXO overall assessment.
- More dynamic range: Captures a larger spectrum of light and dark details (0.9 EV of extra DR).
- Better low-light sensitivity: Requires less light for good images (1.1 stops ISO advantage).
- Broader imaging potential: Can record not only still images but also 4K/30p movies.
- 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 98%).
- 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 921k dots).
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (8 vs 1.1 flaps/sec) to capture the decisive moment.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- More compact: Is smaller (139x98mm vs 156x117mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 820g or 55 percent) and hence easier to carry around.
- Easier travel charging: Can be conveniently charged via its USB port.
- More legacy lens friendly: Can take a broad range of 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) SDXC cards.
- More affordable: Was introduced into a lower priced category (77 percent cheaper at launch).
- More modern: Reflects 8 years and 5 months of technical progress since the 645D launch.
Advantages of the Pentax 645D:
- More detail: Has more megapixels (39.5 vs 30.1MP), which boosts linear resolution by 12%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.76x).
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Longer lasting: Gets more shots (800 versus 370) out of a single battery charge.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- More heavily discounted: Has been around for much longer (launched in March 2010).
If the count of individual advantages (bullet points above) is taken as a guide, the Canon R is the clear winner of the match-up (26 : 9 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 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 R and the Pentax 645D place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR 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 incomplete and does no justice, for example, to the way the Canon R or the 645D 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 why hands-on reviews by experts are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (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 R | 4/5 | o | 4/5 | 79/100 | 4.5/5 | 4/5 | Sep 2018 | US$ 2 299 | ebay.com | |
2. | Pentax 645D | 5/5 | .. | .. | .. | .. | .. | Mar 2010 | US$ 9 995 | ebay.com | |
3. | Canon 1D Mark IV | 5/5 | .. | .. | 89/100 | .. | .. | Oct 2009 | US$ 4 999 | ebay.com | |
4. | Canon 1D X | 5/5 | .. | .. | .. | 4.5/5 | 4.5/5 | Oct 2011 | US$ 6 799 | ebay.com | |
5. | Canon 6D | 5/5 | + + | .. | 83/100 | 4.5/5 | 4.5/5 | Sep 2012 | US$ 2 099 | ebay.com | |
6. | Canon 6D Mark II | 4/5 | + | 4/5 | 80/100 | 4.5/5 | 4/5 | Jun 2017 | US$ 1 999 | amazon.com | |
7. | Canon R6 | 5/5 | + + | 4/5 | 90/100 | 4.5/5 | 5/5 | Jul 2020 | US$ 2 499 | amazon.com | |
8. | Canon RP | 4/5 | + | 4/5 | .. | 4.5/5 | 4/5 | Feb 2019 | US$ 1 299 | amazon.com | |
9. | Leica M10 | 4.5/5 | .. | .. | .. | 4/5 | 4.5/5 | Jan 2017 | US$ 6 599 | ebay.com | |
10. | Leica Q2 | .. | .. | 4.5/5 | 84/100 | 4.5/5 | 4/5 | Mar 2019 | US$ 4 999 | amazon.com | |
11. | Leica S Typ 006 | .. | .. | .. | .. | .. | .. | Sep 2012 | US$ 21 949 | ebay.com | |
12. | Nikon D3S | 5/5 | .. | .. | 89/100 | 4.5/5 | 5/5 | Oct 2009 | US$ 5 199 | ebay.com | |
13. | Nikon D750 | 5/5 | + + | 4/5 | 90/100 | 4.5/5 | 4.5/5 | Sep 2014 | US$ 2 299 | ebay.com | |
14. | Nikon Z6 | 5/5 | .. | 5/5 | 89/100 | 4.5/5 | 5/5 | Aug 2018 | US$ 1 999 | ebay.com | |
15. | Pentax 645Z | 5/5 | .. | 3.5/5 | .. | 4.5/5 | 5/5 | Apr 2014 | US$ 8 499 | ebay.com | |
16. | Sony A7 III | .. | + + | 4.5/5 | 89/100 | 5/5 | 5/5 | Feb 2018 | US$ 1 999 | amazon.com | |
17. | Sony A7R | 5/5 | + + | .. | 82/100 | 4.5/5 | 5/5 | Oct 2013 | US$ 2 299 | ebay.com | |
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
The above review scores should be interpreted 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 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.
Other camera comparisons
Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just use the search menu below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
Specifications: Canon R vs Pentax 645D
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 R | Pentax 645D |
---|---|---|
Camera Type | Mirrorless system camera | Digital single lens reflex |
Camera Lens | Canon RF mount lenses | Pentax 645 mount lenses |
Launch Date | September 2018 | March 2010 |
Launch Price | USD 2,299 | USD 9,995 |
Sensor Specs | Canon R | Pentax 645D |
Sensor Technology | CMOS | CCD |
Sensor Format | Full Frame Sensor | Medium Format Sensor |
Sensor Size | 36.0 x 24.0 mm | 44.0 x 33.0 mm |
Sensor Area | 864 mm2 | 1452 mm2 |
Sensor Diagonal | 43.3 mm | 55 mm |
Crop Factor | 1.0x | 0.79x |
Sensor Resolution | 30.1 Megapixels | 39.5 Megapixels |
Image Resolution | 6720 x 4480 pixels | 7264 x 5440 pixels |
Pixel Pitch | 5.36 μm | 6.06 μm |
Pixel Density | 3.48 MP/cm2 | 2.72 MP/cm2 |
Moiré control | Anti-Alias filter | no AA filter |
Movie Capability | 4K/30p Video | no Video |
ISO Setting | 100 - 40,000 ISO | 100 - 1,600 ISO |
ISO Boost | 50 - 102,400 ISO | no Enhancement |
Image Processor | DIGIC 8 | PRIME II |
DXO Sensor Quality (score) | 89 | 82 |
DXO Color Depth (bits) | 24.5 | 24.6 |
DXO Dynamic Range (EV) | 13.5 | 12.6 |
DXO Low Light (ISO) | 2742 | 1262 |
Screen Specs | Canon R | Pentax 645D |
Viewfinder Type | Electronic viewfinder | Optical viewfinder |
Viewfinder Field of View | 100% | 98% |
Viewfinder Magnification | 0.76x | 0.78x |
Viewfinder Resolution | 3690k dots | |
Top-Level Screen | Control Panel | Control Panel |
LCD Framing | Live View | |
Rear LCD Size | 3.2inch | 3.0inch |
LCD Resolution | 2100k dots | 921k dots |
LCD Attachment | Swivel screen | Fixed screen |
Touch Input | Touchscreen | no Touchscreen |
Shooting Specs | Canon R | Pentax 645D |
Focus System | On-Sensor Phase-detect | Phase-detect AF |
Manual Focusing Aid | Focus Peaking | no Peaking Feature |
Continuous Shooting | 8 shutter flaps/s | 1.1 shutter flaps/s |
Shutter Life Expectancy | 200 000 actuations | 50 000 actuations |
Electronic Shutter | YES | no E-Shutter |
Time-Lapse Photography | no Intervalometer | Intervalometer built-in |
Fill Flash | no On-Board Flash | no On-Board Flash |
Storage Medium | SDXC cards | SDXC cards |
Single or Dual Card Slots | Single card slot | Dual card slots |
UHS card support | UHS-II | no |
Connectivity Specs | Canon R | Pentax 645D |
External Flash | Hotshoe | Hotshoe |
Studio Flash | no PC Sync | PC Sync socket |
USB Connector | USB 3.1 | USB 2.0 |
HDMI Port | mini HDMI | no HDMI |
Microphone Port | External MIC port | no MIC socket |
Headphone Socket | Headphone port | no Headphone port |
Wifi Support | Wifi built-in | no Wifi |
Bluetooth Support | Bluetooth built-in | no Bluetooth |
Body Specs | Canon R | Pentax 645D |
Environmental Sealing | Weathersealed body | Weathersealed body |
Battery Type | Canon LP-E6N | Pentax D-LI90 |
Battery Life (CIPA) | 370 shots per charge | 800 shots per charge |
In-Camera Charging | USB charging | no USB charging |
Body Dimensions |
139 x 98 x 84 mm (5.5 x 3.9 x 3.3 in) |
156 x 117 x 119 mm (6.1 x 4.6 x 4.7 in) |
Camera Weight | 660 g (23.3 oz) | 1480 g (52.2 oz) |
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