Canon 20D vs Sony A1
The Canon EOS 20D and the Sony A1 are two digital cameras that were revealed to the public, respectively, in August 2004 and January 2021. The 20D is a DSLR, while the A1 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (20D) and a full frame (A1) sensor. The Canon has a resolution of 8.2 megapixels, whereas the Sony provides 49.8 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 20D and the Sony A1? 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 20D and the Sony A1. 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 A1 is notably smaller (18 percent) than the Canon 20D. Moreover, the A1 is slightly lighter (4 percent) than the 20D. It is noteworthy in this context that the A1 is splash and dust-proof, while the 20D 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 (20D) and the Sony FE Lens Catalog (A1). Mirrorless cameras, such as the A1, 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 20D gets 700 shots out of its Canon BP-511A battery, while the A1 can take 530 images on a single charge of its Sony NP-FZ100 power pack. The power pack in the A1 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. 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 20D | 144 mm | 106 mm | 72 mm | 770 g | 700 | n | Aug 2004 | 1,499 | ebay.com | |
2. | Sony A1 | 129 mm | 97 mm | 81 mm | 737 g | 530 | Y | Jan 2021 | 6,499 | amazon.com | |
3. | Canon 7D II | 149 mm | 112 mm | 78 mm | 910 g | 670 | Y | Sep 2014 | 1,799 | ebay.com | |
4. | Canon 60D | 145 mm | 106 mm | 79 mm | 755 g | 1100 | Y | Aug 2010 | 1,399 | ebay.com | |
5. | Canon 7D | 148 mm | 111 mm | 74 mm | 860 g | 800 | Y | Sep 2009 | 1,699 | ebay.com | |
6. | Canon 50D | 146 mm | 108 mm | 74 mm | 822 g | 800 | Y | Aug 2008 | 1,299 | ebay.com | |
7. | Canon 40D | 146 mm | 108 mm | 74 mm | 822 g | 750 | n | Aug 2007 | 1,299 | ebay.com | |
8. | Canon 30D | 144 mm | 106 mm | 74 mm | 785 g | 750 | n | Feb 2006 | 1,399 | ebay.com | |
9. | Canon XT | 127 mm | 94 mm | 64 mm | 540 g | 400 | n | Feb 2005 | 899 | ebay.com | |
10. | Canon 10D | 150 mm | 107 mm | 75 mm | 850 g | 500 | n | Feb 2003 | 1,999 | ebay.com | |
11. | Canon Rebel | 142 mm | 99 mm | 72 mm | 649 g | 400 | n | Aug 2003 | 899 | ebay.com | |
12. | Nikon D200 | 147 mm | 113 mm | 74 mm | 920 g | 400 | Y | Nov 2005 | 1,699 | ebay.com | |
13. | Sony A7R V | 131 mm | 97 mm | 82 mm | 723 g | 530 | Y | Oct 2022 | 3,899 | amazon.com | |
14. | Sony A7 IV | 131 mm | 96 mm | 80 mm | 659 g | 580 | Y | Oct 2021 | 2,499 | amazon.com | |
15. | Sony A7R IIIA | 127 mm | 96 mm | 74 mm | 650 g | 650 | Y | Apr 2021 | 3,199 | amazon.com | |
16. | Sony A7R IVA | 129 mm | 96 mm | 78 mm | 665 g | 670 | Y | Apr 2021 | 3,499 | amazon.com | |
17. | Sony A7S III | 127 mm | 97 mm | 81 mm | 699 g | 600 | Y | Jul 2020 | 3,499 | amazon.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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The 20D was launched at a markedly lower price (by 77 percent) than the A1, 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 20D features an APS-C sensor and the Sony A1 a full frame sensor. The sensor area in the A1 is 155 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 49.8MP, the A1 offers a higher resolution than the 20D (8.2MP), but the A1 has smaller individual pixels (pixel pitch of 4.16μm versus 6.42μm for the 20D). Yet, the A1 is a much more recent model (by 16 years and 5 months) than the 20D, 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 A1 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Sony A1 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A1 for good quality output (200 dots per inch) amounts to 43.2 x 28.8 inches or 109.7 x 73.2 cm, for very good quality (250 dpi) 34.6 x 23 inches or 87.8 x 58.5 cm, and for excellent quality (300 dpi) 28.8 x 19.2 inches or 73.2 x 48.8 cm. The corresponding values for the Canon 20D are 17.5 x 11.7 inches or 44.5 x 29.7 cm for good quality, 14 x 9.3 inches or 35.6 x 23.7 cm for very good quality, and 11.7 x 7.8 inches or 29.7 x 19.8 cm for excellent quality prints.
The A1 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
Unlike the 20D, the A1 has the capacity to capture high quality composite images (YESMP) 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 20D 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 A1 are ISO 100 to ISO 32000, with the possibility to increase the ISO range to 50-102400.
In terms of underlying technology, the 20D is build around a CMOS sensor, while the A1 uses a Stacked 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.
Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). Of the two cameras under consideration, the A1 offers substantially better image quality than the 20D (overall score 36 points higher). The advantage is based on 4 bits higher color depth, 3.5 EV in additional dynamic range, and 2.1 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.
# | Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon 20D | APS-C | 8.2 | 3504 | 2336 | none | 21.9 | 11.0 | 721 | 62 | |
2. | Sony A1 | Full Frame | 49.8 | 8640 | 5760 | 8k/30p | 25.9 | 14.5 | 3163 | 98 | |
3. | Canon 7D II | APS-C | 20.0 | 5472 | 3648 | 1080/60p | 22.4 | 11.8 | 1082 | 70 | |
4. | Canon 60D | APS-C | 17.9 | 5184 | 3456 | 1080/30p | 22.2 | 11.5 | 813 | 66 | |
5. | Canon 7D | APS-C | 17.9 | 5184 | 3456 | 1080/30p | 22.0 | 11.7 | 854 | 66 | |
6. | Canon 50D | APS-C | 15.1 | 4752 | 3168 | none | 21.8 | 11.4 | 696 | 63 | |
7. | Canon 40D | APS-C | 10.1 | 3888 | 2592 | none | 22.1 | 11.3 | 703 | 64 | |
8. | Canon 30D | APS-C | 8.2 | 3504 | 2336 | none | 21.5 | 10.8 | 736 | 59 | |
9. | Canon XT | APS-C | 8.0 | 3456 | 2304 | none | 21.8 | 10.8 | 637 | 60 | |
10. | Canon 10D | APS-C | 6.3 | 3072 | 2048 | none | 21.1 | 10.9 | 571 | 57 | |
11. | Canon Rebel | APS-C | 6.3 | 3072 | 2048 | none | 21.0 | 10.8 | 544 | 55 | |
12. | Nikon D200 | APS-C | 10.0 | 3872 | 2592 | none | 22.3 | 11.5 | 583 | 64 | |
13. | Sony A7R V | Full Frame | 60.2 | 9504 | 6336 | 8k/24p | 26.5 | 14.8 | 3187 | 100 | |
14. | Sony A7 IV | Full Frame | 32.7 | 7008 | 4672 | 4K/60p | 25.4 | 14.7 | 3379 | 97 | |
15. | Sony A7R IIIA | Full Frame | 42.2 | 7952 | 5304 | 4K/30p | 26.0 | 14.7 | 3523 | 100 | |
16. | Sony A7R IVA | Full Frame | 60.2 | 9504 | 6336 | 4K/30p | 26.0 | 14.8 | 3344 | 99 | |
17. | Sony A7S III | Full Frame | 12.0 | 4240 | 2832 | 4K/120p | 23.7 | 13.9 | 2520 | 86 |
Many modern cameras are not only capable of taking still images, but also of capturing video footage. The A1 indeed provides for movie recording, while the 20D does not. The highest resolution format that the A1 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 A1 has an electronic viewfinder (9437k dots), while the 20D 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 A1 offers a wider field of view (100%) than the one in the 20D (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the A1 has a higher magnification (0.9x vs 0.56x), 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 20D and Sony A1 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 20D | optical | Y | 1.8 / 118 | fixed | n | 1/8000s | 5.0/s | Y | n | |
2. | Sony A1 | 9437 | n | 3.0 / 1440 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
3. | Canon 7D II | optical | Y | 3.0 / 1040 | fixed | n | 1/8000s | 10.0/s | Y | n | |
4. | Canon 60D | optical | Y | 3.0 / 1040 | swivel | n | 1/8000s | 5.3/s | Y | n | |
5. | Canon 7D | optical | Y | 3.0 / 920 | fixed | n | 1/8000s | 8.0/s | Y | n | |
6. | Canon 50D | optical | Y | 3.0 / 920 | fixed | n | 1/8000s | 6.3/s | Y | n | |
7. | Canon 40D | optical | Y | 3.0 / 230 | fixed | n | 1/8000s | 6.5/s | Y | n | |
8. | Canon 30D | optical | Y | 2.5 / 230 | fixed | n | 1/8000s | 5.0/s | Y | n | |
9. | Canon XT | optical | n | 1.8 / 115 | fixed | n | 1/4000s | 3.0/s | Y | n | |
10. | Canon 10D | optical | Y | 1.8 / 118 | fixed | n | 1/4000s | 3.0/s | Y | n | |
11. | Canon Rebel | optical | n | 1.8 / 118 | fixed | n | 1/4000s | 2.5/s | Y | n | |
12. | Nikon D200 | optical | Y | 2.5 / 230 | fixed | n | 1/8000s | 5.0/s | Y | n | |
13. | Sony A7R V | 9440 | n | 3.2 / 2100 | full-flex | Y | 1/8000s | 10.0/s | n | Y | |
14. | Sony A7 IV | 3686 | n | 3.0 / 1037 | swivel | Y | 1/8000s | 10.0/s | n | Y | |
15. | Sony A7R IIIA | 3686 | n | 3.0 / 2340 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
16. | Sony A7R IVA | 5760 | n | 3.0 / 2340 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
17. | Sony A7S III | 9440 | n | 3.0 / 1440 | swivel | Y | 1/8000s | 10.0/s | n | Y | |
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one. |
One difference between the cameras concerns the presence of an on-board flash. The 20D has one, while the A1 does not. While the built-in flash of the 20D 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 A1 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 A1 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 20D writes its imaging data to Compact Flash cards, while the A1 uses CFexpress (type A) or SDXC cards. The A1 features dual card slots, which can be very useful in case a memory card fails. In contrast, the 20D 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 20D and Sony A1 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 20D | Y | - / - | - | - | - | 1.1 | - | - | - | |
2. | Sony A1 | Y | stereo / mono | Y | Y | full | 3.2 | Y | - | Y | |
3. | Canon 7D II | Y | stereo / mono | Y | Y | mini | 3.0 | - | - | - | |
4. | Canon 60D | Y | mono / mono | Y | - | mini | 2.0 | - | - | - | |
5. | Canon 7D | Y | mono / - | Y | - | mini | 2.0 | - | - | - | |
6. | Canon 50D | Y | - / - | - | - | mini | 2.0 | - | - | - | |
7. | Canon 40D | Y | - / - | - | - | - | 2.0 | - | - | - | |
8. | Canon 30D | Y | - / - | - | - | - | 2.0 | - | - | - | |
9. | Canon XT | Y | - / - | - | - | - | 2.0 | - | - | - | |
10. | Canon 10D | Y | - / - | - | - | - | 1.1 | - | - | - | |
11. | Canon Rebel | Y | - / - | - | - | - | 1.1 | - | - | - | |
12. | Nikon D200 | Y | - / - | - | - | - | 2.0 | - | - | - | |
13. | Sony A7R V | Y | stereo / mono | Y | Y | full | 3.2 | Y | - | Y | |
14. | Sony A7 IV | Y | stereo / mono | Y | Y | full | 3.2 | Y | - | Y | |
15. | Sony A7R IIIA | Y | stereo / mono | Y | Y | micro | 3.2 | Y | Y | Y | |
16. | Sony A7R IVA | Y | stereo / mono | Y | Y | micro | 3.2 | Y | Y | Y | |
17. | Sony A7S III | Y | stereo / mono | Y | Y | full | 3.2 | Y | - | Y |
It is notable that the A1 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the 20D 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 A1 is a recent model that features in the current product line-up of Sony. In contrast, the 20D has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the 20D was succeeded by the Canon 30D. Further information on the features and operation of the 20D and A1 can be found, respectively, in the Canon 20D Manual (free pdf) or the online Sony A1 Manual.
Review summary
So what conclusions can be drawn? Which of the two cameras – the Canon 20D or the Sony A1 – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.
Advantages of the Canon EOS 20D:
- 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 (700 versus 530) 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 (77 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in August 2004).
Reasons to prefer the Sony A1:
- More detail: Has more megapixels (49.8 vs 8.2MP), which boosts linear resolution by 147%.
- 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 (36 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (4 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 (2.1 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.
- 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 (0.9x vs 0.56x).
- Larger screen: Has a bigger rear LCD (3.0" vs 1.8") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (1440k vs 118k dots).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- Faster 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 (129x97mm vs 144x106mm) and will fit more readily into a bag.
- 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 (3.2 vs 1.1).
- 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.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- More modern: Reflects 16 years and 5 months of technical progress since the 20D launch.
If the number of relative strengths (bullet points above) is taken as a guide, the A1 is the clear winner of the contest (29 : 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 20D and the Sony A1 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it says little about, for example, the shooting experience and imaging performance of the 20D and the A1 in practical situations. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.
Expert reviews
This is why expert reviews are important. 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 20D | .. | .. | .. | + + | .. | .. | Aug 2004 | 1,499 | ebay.com | |
2. | Sony A1 | 5/5 | o | 4.5/5 | 93/100 | 4.5/5 | 5/5 | Jan 2021 | 6,499 | amazon.com | |
3. | Canon 7D II | 4.5/5 | + | 3.5/5 | 84/100 | 4/5 | 4.5/5 | Sep 2014 | 1,799 | ebay.com | |
4. | Canon 60D | 5/5 | + | .. | 79/100 | 4/5 | 4.5/5 | Aug 2010 | 1,399 | ebay.com | |
5. | Canon 7D | 5/5 | + + | .. | 84/100 | 4.5/5 | 4.5/5 | Sep 2009 | 1,699 | ebay.com | |
6. | Canon 50D | .. | + + | .. | + + | 4.5/5 | 4.5/5 | Aug 2008 | 1,299 | ebay.com | |
7. | Canon 40D | .. | + + | .. | + + | 4.5/5 | 4.5/5 | Aug 2007 | 1,299 | ebay.com | |
8. | Canon 30D | .. | + + | .. | + + | o | .. | Feb 2006 | 1,399 | ebay.com | |
9. | Canon XT | .. | 80/100 | .. | + + | o | .. | Feb 2005 | 899 | ebay.com | |
10. | Canon 10D | .. | .. | .. | + + | .. | .. | Feb 2003 | 1,999 | ebay.com | |
11. | Canon Rebel | .. | .. | .. | + + | .. | .. | Aug 2003 | 899 | ebay.com | |
12. | Nikon D200 | .. | + + | .. | + + | o | .. | Nov 2005 | 1,699 | ebay.com | |
13. | Sony A7R V | 5/5 | + + | 4.5/5 | 92/100 | .. | .. | Oct 2022 | 3,899 | amazon.com | |
14. | Sony A7 IV | 5/5 | + + | 4.5/5 | 89/100 | 4.5/5 | 4.5/5 | Oct 2021 | 2,499 | amazon.com | |
15. | Sony A7R IIIA | .. | + + | 4/5 | 90/100 | 4.5/5 | 5/5 | Apr 2021 | 3,199 | amazon.com | |
16. | Sony A7R IVA | 5/5 | + | 4.5/5 | 91/100 | 4.5/5 | 5/5 | Apr 2021 | 3,499 | amazon.com | |
17. | Sony A7S III | 4.5/5 | + + | 5/5 | 91/100 | 4.5/5 | 5/5 | Jul 2020 | 3,499 | amazon.com | |
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. 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. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
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. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
Specifications: Canon 20D vs Sony A1
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 20D | Sony A1 |
---|---|---|
Camera Type | Digital single lens reflex | Mirrorless system camera |
Camera Lens | Canon EF mount lenses | Sony E mount lenses |
Launch Date | August 2004 | January 2021 |
Launch Price | USD 1,499 | USD 6,499 |
Sensor Specs | Canon 20D | Sony A1 |
Sensor Technology | CMOS | Stacked BSI-CMOS |
Sensor Format | APS-C Sensor | Full Frame Sensor |
Sensor Size | 22.5 x 15.0 mm | 35.9 x 24.0 mm |
Sensor Area | 337.5 mm2 | 861.6 mm2 |
Sensor Diagonal | 27 mm | 43.2 mm |
Crop Factor | 1.6x | 1.0x |
Sensor Resolution | 8.2 Megapixels | 49.8 Megapixels |
Image Resolution | 3504 x 2336 pixels | 8640 x 5760 pixels |
Pixel Pitch | 6.42 μm | 4.16 μm |
Pixel Density | 2.43 MP/cm2 | 5.78 MP/cm2 |
Moiré control | Anti-Alias filter | no AA filter |
Movie Capability | no Video | 8k/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 2 | Dual BIONZ XR |
DXO Sensor Quality (score) | 62 | 98 |
DXO Color Depth (bits) | 21.9 | 25.9 |
DXO Dynamic Range (EV) | 11.0 | 14.5 |
DXO Low Light (ISO) | 721 | 3163 |
Screen Specs | Canon 20D | Sony A1 |
Viewfinder Type | Optical viewfinder | Electronic viewfinder |
Viewfinder Field of View | 95% | 100% |
Viewfinder Magnification | 0.56x | 0.9x |
Viewfinder Resolution | 9437k dots | |
Top-Level Screen | Control Panel | no Top Display |
LCD Framing | Live View | |
Rear LCD Size | 1.8inch | 3.0inch |
LCD Resolution | 118k dots | 1440k dots |
LCD Attachment | Fixed screen | Tilting screen |
Touch Input | no Touchscreen | Touchscreen |
Shooting Specs | Canon 20D | Sony A1 |
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 | 5 shutter flaps/s | 10 shutter flaps/s |
Shutter Life Expectancy | 50 000 actuations | 500 000 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 | Built-in Flash | no On-Board Flash |
Storage Medium | CF cards | CFexA or SDXC cards |
Single or Dual Card Slots | Single card slot | Dual card slots |
Connectivity Specs | Canon 20D | Sony A1 |
External Flash | Hotshoe | Hotshoe |
Studio Flash | PC Sync socket | PC Sync socket |
USB Connector | USB 1.1 | USB 3.2 |
HDMI Port | no HDMI | full 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 20D | Sony A1 |
Environmental Sealing | not weather sealed | Weathersealed body |
Battery Type | Canon BP-511A | Sony NP-FZ100 |
Battery Life (CIPA) | 700 shots per charge | 530 shots per charge |
In-Camera Charging | no USB charging | USB charging |
Body Dimensions |
144 x 106 x 72 mm (5.7 x 4.2 x 2.8 in) |
129 x 97 x 81 mm (5.1 x 3.8 x 3.2 in) |
Camera Weight | 770 g (27.2 oz) | 737 g (26.0 oz) |
Did you notice an error on this page? If so, please get in touch, so that we can correct the information.