Nikon D800 vs Canon EOS 20D

This is a full comparison between the cameras Nikon D800 and Canon EOS 20D. We compare them by looking at the categories you see below.

Manufacturing

Nikon D800 is manufacturered by Nikon but Canon EOS 20D is from Canon. Both Nikon and Canon are well known brands though.

Nikon D800 were released 2012 and Canon EOS 20D was released 2004. That is a 8 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera Released
Nikon D800 2012
Canon EOS 20D 2004

Type of camera

Both these cameras are DSLR cameras. No difference there.

Sensors / crop factor

These cameras have different sensors. Nikon D800 has a "Nikon FX"-sensor while Canon EOS 20D has a "Canon APS-C"-sensor, and their difference in sensors will also affect the crop factor and experience focal length. See the table below.

Camera Focal length, 50mm f/1.8 **
Nikon D800 50 mm
Full-frame sensor
No crop factor/focal length multiplier
Canon EOS 20D 80 mm
Canon APS-C sensor
Crop factor/focal length multiplier by * 1.6

** Experienced focal length when using a lens such as a common "50mm f/1.8"

Learn more about crop factor and focal length multiplier here:
Camera selection can affect the focal length (Nikon)
Camera selection can affect the focal length (Canon)

Resolution

Nikon D800 has a 36,3 MP (Megapixels) resolution while Canon EOS 20D has 8,2 MP. If we break down this in more detail this is the data behind the numbers:

Camera Megapixels
Nikon D800 36,3 MP
36152320 pixels
7360 x 4912
Canon EOS 20D 8,2 MP
8185344 pixels
3504 x 2336

Nikon D800 has a 342 % larger resolution than Canon EOS 20D. This could give you more details in the picture but also a possibility to crop more in the pictures, afterward while editing the pictures, if needed that is.

ISO range

Nikon D800 has a larger ISO-range than Canon EOS 20D. Nikon D800 has an ISO range that stretches from 100 to 25600 while Canon EOS 20D has 100 to 3200.

Camera ISO Range
Nikon D800 100-25600
Canon EOS 20D 100-3200

Autofocus and lens compatibility

Both of these cameras have a built-in autofocus motor. Some lenses, that support autofocus, do not have an autofocus motor of their own but this won't cause any problems with these two cameras.

Here is a complete overview of which lenses work with each camera:
Lens compatibility chart for Nikon D800
Lens compatibility chart for Canon EOS 20D

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Nikon D800 can shoot up to 6 pictures per seconds and Canon EOS 20D can shoot up to 5 pictures per seconds.

Camera FPS (Frames per second)
Nikon D800 6
Canon EOS 20D 5

Ability to record movies

It is becoming more and more popular to record movies with digital cameras.

When comparing these two cameras there is only one of them that can shoot movies and that is Nikon D800. Unfortunately Canon EOS 20D does not support recording movies and movie clips.

Weight

The weight of the camera can be an extremely important factor, especially if the camera is about to be used, or carried around, for several hours at a time.

Nikon D800 weighs 900 gr (equal to 1.98 lb) which is 17% heavier than Canon EOS 20D and its 770 gr (or 1.7 lb).

Camera Weight
Nikon D800 900 gr
1.98 lb
Canon EOS 20D 770 gr
1.7 lb

Nikon D800 vs Canon EOS 20D Specs

Below you will find the complete and detailed technical specs for both Nikon D800 and Canon EOS 20D, next to each other. Each category of data is a link to an article covering the subject, giving you a deeper understanding so you can better understand the strengths and weaknesses of the two camera models.

Product
Nikon D800
Canon EOS 20D
Name Nikon D800 Canon EOS 20D
Manufacturer Nikon Canon
Release Date and Price
Nikon D800
Canon EOS 20D
Release Year 2012 2004
Release Date 2012-02-07 2004-08-19
MSRP 2999 USD 1499 USD
Buy it today
Camera Type
Nikon D800
Canon EOS 20D
Camera Type DSLR DSLR
Sensor
Nikon D800
Canon EOS 20D
Sensor Size Full Frame (approx 36 x 23.9 mm)
Also known as "FX"
APS-C (approx 22.3 x 14.9 mm)
Sensor Type CMOS CMOS
Resolution 7360 x 4912 pixels 3504 x 2336 pixels
Megapixels 36,3 MP 8,2 MP
Image Processor EXPEED 3 DIGIC 2
Image
Nikon D800
Canon EOS 20D
ISO Range 100 - 25600 100 - 3200
White Balance Presets 12 6
Custom White Balance Yes Yes
Image Stabilization No No
Image Stabilization CIPA Rating 0 stops 0 stops
Uncompressed format RAW RAW
Optics & Focus
Nikon D800
Canon EOS 20D
Autofocus Motor Yes Yes
Autofocus Phase Detect
Multi Area
Selective Single Point
Tracking
Single
Continuous
Face Detection
LiveView
Phase Detect
Multi Area
Selective Single Point
Single
Continuous
Focus Points 51 9
Lens Mount Nikon F

See Compatible Lenses
Canon EF
Canon EF-S

See Compatible Lenses
Focal Length Multiplier FX (Full frame)
No multiplier
Example:
24 mm remains 24 mm
50 mm remains 50 mm
100 mm remains 100 mm
200 mm remains 200 mm
APS-C Sensor
1.6x multiplier
Example:
24 mm becomes 38 mm
50 mm becomes 80 mm
100 mm becomes 160 mm
200 mm becomes 320 mm
Screen & Viewfinder
Nikon D800
Canon EOS 20D
Articulated LCD Fixed Fixed
Screen size 3,2” 1,8”
Screen dots 921000 118000
Touch screen No No
Screen type TFT Color LCD with 170 degrees wide-viewing angle N/A
Live view Yes No
Viewfinder Type Optical (pentaprism) Optical (pentaprism)
Viewfinder Coverage 100% 95%
Viewfinder Magnification 0.7× 0.9× (0.56× 35mm equiv.)
Viewfinder Resolution N/A N/A
Photography features
Nikon D800
Canon EOS 20D
Frames per second 6 fps 5 fps
Minimum Shutter Speed 30 seconds 30 seconds
Maximum Shutter Speed 1/8000 seconds 1/8000 seconds
Built-in Flash Yes Yes
Built-in Flash Range 12 meters 12 meters
External Flash Yes Yes
Self-Timer Yes Yes
Time-lapse Yes Yes
Metering modes Multi
Center Weighted
Spot
Average
Multi
Center Weighted
Partial
Exposure Compensation +/- 5 (at 1/3 EV, 1/2 EV, 1 EV steps) +/- 2 (at 1/3 EV, 1/2 EV steps)
Videography features
Nikon D800
Canon EOS 20D
Video recording Yes No
Video format MPEG4
H.264
N/A
Video resolution 1280 x 720
1920 x 1080
N/A
Built-in Microphone Yes No
Built-in Speakers Yes No
Storage
Nikon D800
Canon EOS 20D
Memory Card Compact Flash
Compact Flash
Connectivity
Nikon D800
Canon EOS 20D
HDMI Output Yes No
Microphone Port Yes No
Headphone Port Yes No
Wireless Yes
Optional with Nikon Wireless Transmitter for D800 (WT-4A)
No
Remote Control Yes (Optional, wired or wireless) Yes (N3 connector)
GPS Yes
Optional with GP-1
No
Body & Dimensions
Nikon D800
Canon EOS 20D
Enviromentally sealed Yes No
Battery Battery Pack Battery Pack
Battery Details Lithium-Ion EN-EL15 rechargeable battery & charger
BP-511A Lithium-Ion battery pack
Battery Life (CIPA) 900 shots 700 shots
Width 146 mm 144 mm
Height 123 mm 106 mm
Depth 82 mm 72 mm
Weight 900 gram 770 gram