Canon 40D vs Sony A7R IV
The Canon EOS 40D and the Sony Alpha A7R IV are two enthusiast cameras that were announced, respectively, in August 2007 and July 2019. The 40D is a DSLR, while the A7R IV is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (40D) and a full frame (A7R IV) sensor. The Canon has a resolution of 10.1 megapixels, whereas the Sony provides 60.2 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 40D and the Sony Alpha A7R IV? 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 physical size and weight of the Canon 40D and the Sony A7R IV are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All size dimensions are rounded to the nearest millimeter.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7R IV is notably smaller (21 percent) than the Canon 40D. Moreover, the A7R IV is markedly lighter (19 percent) than the 40D. It is noteworthy in this context that the A7R IV is splash and dust-proof, while the 40D 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 (40D) and the Sony FE Lens Catalog (A7R IV). Mirrorless cameras, such as the A7R IV, 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 40D gets 750 shots out of its Canon BP-511A battery, while the A7R IV can take 670 images on a single charge of its Sony NP-FZ100 power pack. The power pack in the A7R IV 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.
# | Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price (USD) |
Street Price |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon 40D | 146 mm | 108 mm | 74 mm | 822 g | 750 | n | Aug 2007 | 1,299 | ebay.com | |
2. | Sony A7R IV | 129 mm | 96 mm | 78 mm | 665 g | 670 | Y | Jul 2019 | 3,499 | ebay.com | |
3. | Canon 70D | 139 mm | 104 mm | 79 mm | 755 g | 920 | Y | Jul 2013 | 1,199 | ebay.com | |
4. | Canon 60D | 145 mm | 106 mm | 79 mm | 755 g | 1100 | Y | Aug 2010 | 1,399 | ebay.com | |
5. | Canon 50D | 146 mm | 108 mm | 74 mm | 822 g | 800 | Y | Aug 2008 | 1,299 | ebay.com | |
6. | Canon 450D | 129 mm | 98 mm | 62 mm | 524 g | 500 | n | Jan 2008 | 799 | ebay.com | |
7. | Canon 1000D | 126 mm | 98 mm | 65 mm | 502 g | 500 | n | Jun 2008 | 449 | ebay.com | |
8. | Canon 30D | 144 mm | 106 mm | 74 mm | 785 g | 750 | n | Feb 2006 | 1,399 | ebay.com | |
9. | Canon 400D | 127 mm | 84 mm | 65 mm | 556 g | 370 | n | Aug 2006 | 799 | ebay.com | |
10. | Canon 20D | 144 mm | 106 mm | 72 mm | 770 g | 700 | n | Aug 2004 | 1,499 | ebay.com | |
11. | Nikon D90 | 132 mm | 103 mm | 77 mm | 703 g | 850 | n | Aug 2008 | 1,299 | ebay.com | |
12. | Olympus E-30 | 142 mm | 108 mm | 75 mm | 701 g | 750 | n | Nov 2008 | 1,299 | ebay.com | |
13. | Sony A7R IVA | 129 mm | 96 mm | 78 mm | 665 g | 670 | Y | Apr 2021 | 3,499 | amazon.com | |
14. | Sony A7S III | 127 mm | 97 mm | 81 mm | 699 g | 600 | Y | Jul 2020 | 3,499 | amazon.com | |
15. | Sony A9 II | 129 mm | 96 mm | 76 mm | 678 g | 690 | Y | Oct 2019 | 4,499 | amazon.com | |
16. | Sony A7 III | 127 mm | 96 mm | 74 mm | 650 g | 610 | Y | Feb 2018 | 1,999 | amazon.com | |
17. | Sony A7R III | 127 mm | 96 mm | 74 mm | 650 g | 650 | Y | Oct 2017 | 3,199 | 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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The 40D was launched at a markedly lower price (by 63 percent) than the A7R IV, 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. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon 40D features an APS-C sensor and the Sony A7R IV a full frame sensor. The sensor area in the A7R IV is 156 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 60.2MP, the A7R IV offers a higher resolution than the 40D (10.1MP), but the A7R IV has smaller individual pixels (pixel pitch of 3.76μm versus 5.73μm for the 40D). Yet, the A7R IV is a much more recent model (by 11 years and 10 months) than the 40D, 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 A7R IV has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Sony A7R IV implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7R IV for good quality output (200 dots per inch) amounts to 47.5 x 31.7 inches or 120.7 x 80.5 cm, for very good quality (250 dpi) 38 x 25.3 inches or 96.6 x 64.4 cm, and for excellent quality (300 dpi) 31.7 x 21.1 inches or 80.5 x 53.6 cm. The corresponding values for the Canon 40D are 19.4 x 13 inches or 49.4 x 32.9 cm for good quality, 15.6 x 10.4 inches or 39.5 x 26.3 cm for very good quality, and 13 x 8.6 inches or 32.9 x 21.9 cm for excellent quality prints.
The A7R IV has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
Unlike the 40D, the A7R IV has the capacity to capture high quality composite images (241MP) 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 40D has a native sensitivity range from ISO 100 to ISO 1600, which can be extended to ISO 100-3200. The corresponding ISO settings for the Sony Alpha A7R IV are ISO 100 to ISO 32000, with the possibility to increase the ISO range to 50-102400.
In terms of underlying technology, the 40D is build around a CMOS sensor, while the A7R IV uses a BSI-CMOS 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.
For many cameras, data on sensor performance has been reported by DXO Mark. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. Of the two cameras under consideration, the A7R IV offers substantially better image quality than the 40D (overall score 35 points higher). The advantage is based on 3.9 bits higher color depth, 3.5 EV in additional dynamic range, and 2.2 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 40D | APS-C | 10.1 | 3888 | 2592 | none | 22.1 | 11.3 | 703 | 64 | |
2. | Sony A7R IV | Full Frame | 60.2 | 9504 | 6336 | 4K/30p | 26.0 | 14.8 | 3344 | 99 | |
3. | Canon 70D | APS-C | 20.0 | 5472 | 3648 | 1080/30p | 22.5 | 11.6 | 926 | 68 | |
4. | Canon 60D | APS-C | 17.9 | 5184 | 3456 | 1080/30p | 22.2 | 11.5 | 813 | 66 | |
5. | Canon 50D | APS-C | 15.1 | 4752 | 3168 | none | 21.8 | 11.4 | 696 | 63 | |
6. | Canon 450D | APS-C | 12.2 | 4272 | 2848 | none | 21.9 | 10.8 | 692 | 61 | |
7. | Canon 1000D | APS-C | 10.1 | 3888 | 2592 | none | 22.0 | 10.9 | 719 | 62 | |
8. | Canon 30D | APS-C | 8.2 | 3504 | 2336 | none | 21.5 | 10.8 | 736 | 59 | |
9. | Canon 400D | APS-C | 10.1 | 3888 | 2592 | none | 22.1 | 11.0 | 664 | 62 | |
10. | Canon 20D | APS-C | 8.2 | 3504 | 2336 | none | 21.9 | 11.0 | 721 | 62 | |
11. | Nikon D90 | APS-C | 12.2 | 4288 | 2848 | 720/24p | 22.7 | 12.5 | 977 | 73 | |
12. | Olympus E-30 | Four Thirds | 12.2 | 4032 | 3024 | none | 21.3 | 10.4 | 530 | 55 | |
13. | Sony A7R IVA | Full Frame | 60.2 | 9504 | 6336 | 4K/30p | 26.0 | 14.8 | 3344 | 99 | |
14. | Sony A7S III | Full Frame | 12.0 | 4240 | 2832 | 4K/120p | 23.7 | 13.9 | 2520 | 86 | |
15. | Sony A9 II | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 25.0 | 14.0 | 3434 | 93 | |
16. | Sony A7 III | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 25.0 | 14.7 | 3730 | 96 | |
17. | Sony A7R III | Full Frame | 42.2 | 7952 | 5304 | 4K/30p | 26.0 | 14.7 | 3523 | 100 |
Many modern cameras are not only capable of taking still images, but also of capturing video footage. The A7R IV indeed provides for movie recording, while the 40D does not. The highest resolution format that the A7R IV can use is 4K/30p.
Feature comparison
Beyond body and sensor, cameras can and do differ across a range of features. For example, the A7R IV has an electronic viewfinder (5760k dots), while the 40D 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 A7R IV offers a wider field of view (100%) than the one in the 40D (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the A7R IV has a higher magnification (0.78x vs 0.59x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Canon 40D and Sony A7R IV in connection with corresponding information for a sample of similar 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 40D | optical | Y | 3.0 / 230 | fixed | n | 1/8000s | 6.5/s | Y | n | |
2. | Sony A7R IV | 5760 | n | 3.0 / 1440 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
3. | Canon 70D | optical | Y | 3.0 / 1040 | swivel | Y | 1/8000s | 7.0/s | Y | n | |
4. | Canon 60D | optical | Y | 3.0 / 1040 | swivel | n | 1/8000s | 5.3/s | Y | n | |
5. | Canon 50D | optical | Y | 3.0 / 920 | fixed | n | 1/8000s | 6.3/s | Y | n | |
6. | Canon 450D | optical | n | 3.0 / 230 | fixed | n | 1/4000s | 3.5/s | Y | n | |
7. | Canon 1000D | optical | n | 2.5 / 230 | fixed | n | 1/4000s | 3.0/s | Y | n | |
8. | Canon 30D | optical | Y | 2.5 / 230 | fixed | n | 1/8000s | 5.0/s | Y | n | |
9. | Canon 400D | optical | n | 2.5 / 230 | fixed | n | 1/4000s | 3.0/s | Y | n | |
10. | Canon 20D | optical | Y | 1.8 / 118 | fixed | n | 1/8000s | 5.0/s | Y | n | |
11. | Nikon D90 | optical | Y | 3.0 / 920 | fixed | n | 1/4000s | 4.5/s | Y | n | |
12. | Olympus E-30 | optical | Y | 2.7 / 230 | swivel | n | 1/8000s | 5.0/s | Y | Y | |
13. | Sony A7R IVA | 5760 | n | 3.0 / 2340 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
14. | Sony A7S III | 9440 | n | 3.0 / 1440 | swivel | Y | 1/8000s | 10.0/s | n | Y | |
15. | Sony A9 II | 3686 | n | 3.0 / 1440 | tilting | Y | 1/8000s | 20.0/s | n | Y | |
16. | Sony A7 III | 2359 | n | 3.0 / 922 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
17. | Sony A7R III | 3686 | n | 3.0 / 1440 | tilting | 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 40D has one, while the A7R IV does not. While the built-in flash of the 40D 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 A7R IV 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 Sony A7R IV 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 40D writes its imaging data to Compact Flash cards, while the A7R IV uses SDXC cards. The A7R IV features dual card slots, which can be very useful in case a memory card fails. In contrast, the 40D only has one slot.
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 40D and Sony Alpha A7R IV 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 40D | Y | - / - | - | - | - | 2.0 | - | - | - | |
2. | Sony A7R IV | Y | stereo / mono | Y | Y | micro | 3.1 | Y | Y | Y | |
3. | Canon 70D | Y | stereo / mono | Y | - | mini | 2.0 | Y | - | - | |
4. | Canon 60D | Y | mono / mono | Y | - | mini | 2.0 | - | - | - | |
5. | Canon 50D | Y | - / - | - | - | mini | 2.0 | - | - | - | |
6. | Canon 450D | Y | - / - | - | - | mini | 2.0 | - | - | - | |
7. | Canon 1000D | Y | - / - | - | - | - | 2.0 | - | - | - | |
8. | Canon 30D | Y | - / - | - | - | - | 2.0 | - | - | - | |
9. | Canon 400D | Y | - / - | - | - | - | 2.0 | - | - | - | |
10. | Canon 20D | Y | - / - | - | - | - | 1.1 | - | - | - | |
11. | Nikon D90 | Y | mono / mono | - | - | mini | 2.0 | - | - | - | |
12. | Olympus E-30 | Y | - / - | - | - | - | 2.0 | - | - | - | |
13. | Sony A7R IVA | Y | stereo / mono | Y | Y | micro | 3.2 | Y | Y | Y | |
14. | Sony A7S III | Y | stereo / mono | Y | Y | full | 3.2 | Y | - | Y | |
15. | Sony A9 II | Y | stereo / mono | Y | Y | micro | 3.1 | Y | Y | Y | |
16. | Sony A7 III | Y | stereo / mono | Y | Y | micro | 3.1 | Y | Y | Y | |
17. | Sony A7R III | Y | stereo / mono | Y | Y | micro | 3.1 | Y | Y | Y |
It is notable that the A7R IV offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the 40D 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 40D and the A7R IV have been discontinued, but can regularly be found used on ebay. The 40D was replaced by the Canon 50D, while the A7R IV was followed by the Sony A7R V. Further information on the features and operation of the 40D and A7R IV can be found, respectively, in the Canon 40D Manual (free pdf) or the online Sony A7R IV Manual.
Review summary
So what is the bottom line? Is there a clear favorite between the Canon 40D and the Sony A7R IV? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.
Reasons to prefer the Canon EOS 40D:
- 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 (750 versus 670) on a single battery charge.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More affordable: Was introduced into a lower priced category (63 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in August 2007).
Advantages of the Sony Alpha A7R IV:
- More detail: Has more megapixels (60.2 vs 10.1MP), which boosts linear resolution by 144%.
- 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 image quality: Scores substantially higher (35 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (3.9 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (3.5 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (2.2 stops ISO advantage).
- Broader imaging potential: Can capture not only stills but also 4K/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 (0.78x vs 0.59x).
- More detailed LCD: Has a higher resolution rear screen (1440k vs 230k 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 burst: Shoots at higher frequency (10 vs 6.5 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 (129x96mm vs 146x108mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 157g or 19 percent) and is thus easier to take along.
- Easier travel charging: Can be conveniently charged via its USB port.
- 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 (3.1 vs 2.0).
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- More modern: Reflects 11 years and 10 months of technical progress since the 40D launch.
If the count of relative strengths (bullet points above) is taken as a measure, the A7R IV is the clear winner of the contest (30 : 7 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 40D and the Sony A7R IV 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 remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the 40D or the A7R IV. 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 adjacent summary-table relays the overall verdicts of several of the most popular 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 (USD) |
Street Price |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon 40D | .. | + + | .. | + + | 4.5/5 | 4.5/5 | Aug 2007 | 1,299 | ebay.com | |
2. | Sony A7R IV | 5/5 | + | 4.5/5 | 91/100 | 4.5/5 | 5/5 | Jul 2019 | 3,499 | ebay.com | |
3. | Canon 70D | 5/5 | + + | .. | 83/100 | 4.5/5 | 5/5 | Jul 2013 | 1,199 | ebay.com | |
4. | Canon 60D | 5/5 | + | .. | 79/100 | 4/5 | 4.5/5 | Aug 2010 | 1,399 | ebay.com | |
5. | Canon 50D | .. | + + | .. | + + | 4.5/5 | 4.5/5 | Aug 2008 | 1,299 | ebay.com | |
6. | Canon 450D | .. | + + | .. | + + | 4/5 | 4.5/5 | Jan 2008 | 799 | ebay.com | |
7. | Canon 1000D | .. | 82/100 | .. | + + | 3.5/5 | 4.5/5 | Jun 2008 | 449 | ebay.com | |
8. | Canon 30D | .. | + + | .. | + + | o | .. | Feb 2006 | 1,399 | ebay.com | |
9. | Canon 400D | .. | + + | .. | + + | o | 4/5 | Aug 2006 | 799 | ebay.com | |
10. | Canon 20D | .. | .. | .. | + + | .. | .. | Aug 2004 | 1,499 | ebay.com | |
11. | Nikon D90 | .. | + + | .. | + + | 4/5 | 4.5/5 | Aug 2008 | 1,299 | ebay.com | |
12. | Olympus E-30 | .. | .. | .. | 71/100 | 4.5/5 | 4/5 | Nov 2008 | 1,299 | ebay.com | |
13. | Sony A7R IVA | 5/5 | + | 4.5/5 | 91/100 | 4.5/5 | 5/5 | Apr 2021 | 3,499 | amazon.com | |
14. | Sony A7S III | 4.5/5 | + + | 5/5 | 91/100 | 4.5/5 | 5/5 | Jul 2020 | 3,499 | amazon.com | |
15. | Sony A9 II | .. | .. | 5/5 | 90/100 | 5/5 | 5/5 | Oct 2019 | 4,499 | amazon.com | |
16. | Sony A7 III | .. | + + | 4.5/5 | 89/100 | 5/5 | 5/5 | Feb 2018 | 1,999 | amazon.com | |
17. | Sony A7R III | .. | + + | 4/5 | 90/100 | 4.5/5 | 5/5 | Oct 2017 | 3,199 | ebay.com | |
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. 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 40D vs Sony A7R IV
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 40D | Sony A7R IV |
---|---|---|
Camera Type | Digital single lens reflex | Mirrorless system camera |
Camera Lens | Canon EF mount lenses | Sony E mount lenses |
Launch Date | August 2007 | July 2019 |
Launch Price | USD 1,299 | USD 3,499 |
Sensor Specs | Canon 40D | Sony A7R IV |
Sensor Technology | CMOS | BSI-CMOS |
Sensor Format | APS-C Sensor | Full Frame Sensor |
Sensor Size | 22.3 x 14.9 mm | 35.7 x 23.8 mm |
Sensor Area | 332.27 mm2 | 849.66 mm2 |
Sensor Diagonal | 26.8 mm | 42.9 mm |
Crop Factor | 1.6x | 1.0x |
Sensor Resolution | 10.1 Megapixels | 60.2 Megapixels |
Image Resolution | 3888 x 2592 pixels | 9504 x 6336 pixels |
Pixel Pitch | 5.73 μm | 3.76 μm |
Pixel Density | 3.03 MP/cm2 | 7.09 MP/cm2 |
Moiré control | Anti-Alias filter | no AA filter |
Movie Capability | no Video | 4K/30p Video |
ISO Setting | 100 - 1,600 ISO | 100 - 32,000 ISO |
ISO Boost | 100 - 3,200 ISO | 50 - 102,400 ISO |
Image Processor | DIGIC 3 | BIONZ X |
DXO Sensor Quality (score) | 64 | 99 |
DXO Color Depth (bits) | 22.1 | 26.0 |
DXO Dynamic Range (EV) | 11.3 | 14.8 |
DXO Low Light (ISO) | 703 | 3344 |
Screen Specs | Canon 40D | Sony A7R IV |
Viewfinder Type | Optical viewfinder | Electronic viewfinder |
Viewfinder Field of View | 95% | 100% |
Viewfinder Magnification | 0.59x | 0.78x |
Viewfinder Resolution | 5760k dots | |
Top-Level Screen | Control Panel | no Top Display |
LCD Framing | Live View | Live View |
Rear LCD Size | 3.0inch | 3.0inch |
LCD Resolution | 230k dots | 1440k dots |
LCD Attachment | Fixed screen | Tilting screen |
Touch Input | no Touchscreen | Touchscreen |
Shooting Specs | Canon 40D | Sony A7R IV |
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 | 6.5 shutter flaps/s | 10 shutter flaps/s |
Electronic Shutter | no E-Shutter | YES |
Time-Lapse Photography | no Intervalometer | Intervalometer built-in |
Image Stabilization | Lens stabilization only | In-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 | Dual card slots |
Connectivity Specs | Canon 40D | Sony A7R IV |
External Flash | Hotshoe | Hotshoe |
Studio Flash | PC Sync socket | PC Sync socket |
USB Connector | USB 2.0 | USB 3.1 |
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 |
Near-Field Communication | no NFC | NFC built-in |
Bluetooth Support | no Bluetooth | Bluetooth built-in |
Body Specs | Canon 40D | Sony A7R IV |
Environmental Sealing | not weather sealed | Weathersealed body |
Battery Type | Canon BP-511A | Sony NP-FZ100 |
Battery Life (CIPA) | 750 shots per charge | 670 shots per charge |
In-Camera Charging | no USB charging | USB charging |
Body Dimensions |
146 x 108 x 74 mm (5.7 x 4.3 x 2.9 in) |
129 x 96 x 78 mm (5.1 x 3.8 x 3.1 in) |
Camera Weight | 822 g (29.0 oz) | 665 g (23.5 oz) |
Did you notice an error on this page? If so, please get in touch, so that we can correct the information.