Canon 20D vs Nikon D810A
59 Imaging
45 Features
39 Overall
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55 Imaging
74 Features
80 Overall
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Canon 20D vs Nikon D810A Key Specs
(Full Review)
(Full Review)
- 36MP - Full frame Sensor
- 3.2" Fixed Screen
- ISO 200 - 12800 (Expand to 51200)
- 1/8000s Max Shutter
- 1920 x 1080 video
- Nikon F Mount
- 880g - 146 x 123 x 82mm
- Launched February 2015

Canon 20D vs Nikon D810A Overview
On this page, we will be comparing the Canon 20D versus Nikon D810A, both Advanced DSLR cameras by competitors Canon and Nikon. There exists a crucial gap among the image resolutions of the 20D (8MP) and D810A (36MP) and the 20D (APS-C) and D810A (Full frame) posses different sensor measurements.

The 20D was launched 11 years prior to the D810A and that is a fairly serious gap as far as camera technology is concerned. The two cameras have the same body design (Mid-size SLR).
Before going right into a more detailed comparison, here is a quick synopsis of how the 20D scores against the D810A in relation to portability, imaging, features and an overall rating.

Canon 20D vs Nikon D810A Gallery
This is a preview of the gallery photos for Canon EOS 20D and Nikon D810A. The complete galleries are available at Canon 20D Gallery and Nikon D810A Gallery.
Reasons to pick Canon 20D over the Nikon D810A
20D | D810A |
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Reasons to pick Nikon D810A over the Canon 20D
D810A | 20D | |||
---|---|---|---|---|
Launched | February 2015 | ![]() | November 2004 | Fresher by 125 months |
Screen dimensions | 3.2" | ![]() | 1.8" | Bigger screen (+1.4") |
Screen resolution | 1229k | ![]() | 118k | Clearer screen (+1111k dot) |
Common features in the Canon 20D and Nikon D810A
20D | D810A | |||
---|---|---|---|---|
Focus manually | ![]() | Very exact focusing | ||
Screen type | Fixed | ![]() | Fixed | Fixed screen |
Selfie screen | ![]() | Neither comes with selfie screen | ||
Touch screen | ![]() | Lack of Touch screen |
Canon 20D vs Nikon D810A Physical Comparison
In case you're planning to carry your camera frequently, you should factor its weight and measurements. The Canon 20D comes with exterior dimensions of 144mm x 106mm x 72mm (5.7" x 4.2" x 2.8") accompanied by a weight of 770 grams (1.70 lbs) whilst the Nikon D810A has proportions of 146mm x 123mm x 82mm (5.7" x 4.8" x 3.2") accompanied by a weight of 880 grams (1.94 lbs).
Take a look at the Canon 20D versus Nikon D810A in the new Camera and Lens Size Comparison Tool.
Bear in mind, the weight of an Interchangeable Lens Camera will change dependant on the lens you are working with during that time. Below is a front view dimensions comparison of the 20D vs the D810A.

Taking into consideration dimensions and weight, the portability rating of the 20D and D810A is 59 and 55 respectively.

Canon 20D vs Nikon D810A Sensor Comparison
More often than not, its difficult to visualize the gap in sensor sizing just by viewing specifications. The visual below may give you a better sense of the sensor sizes in the 20D and D810A.
Plainly, each of the cameras provide different megapixel count and different sensor sizing. The 20D because of its smaller sensor is going to make shooting shallow depth of field more difficult and the Nikon D810A will provide you with greater detail utilizing its extra 28 Megapixels. Higher resolution can also enable you to crop pictures more aggressively. The older 20D will be behind in sensor tech.

Canon 20D vs Nikon D810A Screen and ViewFinder


Photography Type Scores
Portrait Comparison

Street Comparison

Sports Comparison

Travel Comparison

Landscape Comparison

Vlogging Comparison

Canon 20D vs Nikon D810A Specifications
Canon EOS 20D | Nikon D810A | |
---|---|---|
General Information | ||
Brand | Canon | Nikon |
Model type | Canon EOS 20D | Nikon D810A |
Class | Advanced DSLR | Advanced DSLR |
Launched | 2004-11-03 | 2015-02-10 |
Body design | Mid-size SLR | Mid-size SLR |
Sensor Information | ||
Powered by | - | EXPEED 4 |
Sensor type | CMOS | CMOS |
Sensor size | APS-C | Full frame |
Sensor dimensions | 22.5 x 15mm | 35.9 x 24mm |
Sensor area | 337.5mm² | 861.6mm² |
Sensor resolution | 8 megapixels | 36 megapixels |
Anti alias filter | ||
Aspect ratio | 3:2 | 5:4 and 3:2 |
Highest resolution | 3504 x 2336 | 7360 x 4912 |
Highest native ISO | 1600 | 12800 |
Highest boosted ISO | 3200 | 51200 |
Minimum native ISO | 100 | 200 |
RAW data | ||
Minimum boosted ISO | - | 100 |
Autofocusing | ||
Focus manually | ||
Touch focus | ||
Autofocus continuous | ||
Autofocus single | ||
Tracking autofocus | ||
Autofocus selectice | ||
Center weighted autofocus | ||
Multi area autofocus | ||
Live view autofocus | ||
Face detection focus | ||
Contract detection focus | ||
Phase detection focus | ||
Total focus points | 9 | 51 |
Cross type focus points | - | 15 |
Lens | ||
Lens mount type | Canon EF/EF-S | Nikon F |
Number of lenses | 326 | 309 |
Crop factor | 1.6 | 1 |
Screen | ||
Screen type | Fixed Type | Fixed Type |
Screen diagonal | 1.8 inch | 3.2 inch |
Resolution of screen | 118 thousand dot | 1,229 thousand dot |
Selfie friendly | ||
Liveview | ||
Touch capability | ||
Viewfinder Information | ||
Viewfinder | Optical (pentaprism) | Optical (pentaprism) |
Viewfinder coverage | 95% | 100% |
Viewfinder magnification | 0.56x | 0.7x |
Features | ||
Lowest shutter speed | 30 secs | 30 secs |
Highest shutter speed | 1/8000 secs | 1/8000 secs |
Continuous shooting speed | 5.0 frames per sec | 5.0 frames per sec |
Shutter priority | ||
Aperture priority | ||
Manually set exposure | ||
Exposure compensation | - | Yes |
Custom white balance | ||
Image stabilization | ||
Built-in flash | ||
Flash distance | 12.00 m (ISO 100) | 12.00 m (at ISO 100) |
Flash options | Auto, On, Red-eye reduction, Off | Front-curtain sync, slow sync, rear-curtain sync, redeye reduction, redeye reduction w/slow sync, slow rear-curtain sync |
External flash | ||
AE bracketing | ||
WB bracketing | ||
Exposure | ||
Multisegment metering | ||
Average metering | ||
Spot metering | ||
Partial metering | ||
AF area metering | ||
Center weighted metering | ||
Video features | ||
Video resolutions | - | 1920 x 1080 (60p, 50p, 30p, 25p, 24p), 1280 x 720 (60p, 50p) |
Highest video resolution | None | 1920x1080 |
Video data format | - | MPEG-4, H.264 |
Mic jack | ||
Headphone jack | ||
Connectivity | ||
Wireless | None | Optional |
Bluetooth | ||
NFC | ||
HDMI | ||
USB | USB 2.0 (480 Mbit/sec) | USB 3.0 (5 GBit/sec) |
GPS | None | Optional |
Physical | ||
Environment seal | ||
Water proofing | ||
Dust proofing | ||
Shock proofing | ||
Crush proofing | ||
Freeze proofing | ||
Weight | 770g (1.70 lb) | 880g (1.94 lb) |
Physical dimensions | 144 x 106 x 72mm (5.7" x 4.2" x 2.8") | 146 x 123 x 82mm (5.7" x 4.8" x 3.2") |
DXO scores | ||
DXO All around rating | 62 | not tested |
DXO Color Depth rating | 21.9 | not tested |
DXO Dynamic range rating | 11.0 | not tested |
DXO Low light rating | 721 | not tested |
Other | ||
Battery life | - | 1200 images |
Battery form | - | Battery Pack |
Battery ID | - | EN-EL15 |
Self timer | Yes (10 sec (2 sec with mirror lock-up)) | Yes (2, 5, 10, 20 secs for up to 9 shots) |
Time lapse feature | ||
Type of storage | Compact Flash (Type I or II) | SD/SDHC/SDXC, CompactFlash (UDMA compliant) |
Storage slots | Single | 2 |
Price at launch | $1,300 | $3,800 |