Nikon D780 vs Canon EOS 20D Astrophotography

This is a full comparison between the cameras Nikon D780 and Canon EOS 20D Astrophotography. We compare them by looking at the categories you see below.

Manufacturing

Nikon D780 is manufacturered by Nikon but Canon EOS 20D Astrophotography is from Canon. Both Nikon and Canon are well known brands though.

Nikon D780 were released 2020 and Canon EOS 20D Astrophotography was released 2005. That is a 15 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera Released
Nikon D780 2020
Canon EOS 20D Astrophotography 2005

Type of camera

Both these cameras are DSLR cameras. No difference there.

Sensors / crop factor

These cameras have different sensors. Nikon D780 has a "Nikon FX"-sensor while Canon EOS 20D Astrophotography 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 D780 50 mm
Full-frame sensor
No crop factor/focal length multiplier
Canon EOS 20D Astrophotography 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 D780 has a 25 MP (Megapixels) resolution while Canon EOS 20D Astrophotography has 8,2 MP. If we break down this in more detail this is the data behind the numbers:

Camera Megapixels
Nikon D780 25 MP
24337152 pixels
6048 x 4024
Canon EOS 20D Astrophotography 8,2 MP
8185344 pixels
3504 x 2336

Nikon D780 has a 197 % larger resolution than Canon EOS 20D Astrophotography. 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 D780 has a larger ISO-range than Canon EOS 20D Astrophotography. Nikon D780 has an ISO range that stretches from 100 to 51200 while Canon EOS 20D Astrophotography has 100 to 3200.

Camera ISO Range
Nikon D780 100-51200
Canon EOS 20D Astrophotography 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 D780
Lens compatibility chart for Canon EOS 20D Astrophotography

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Nikon D780 can shoot up to 12 pictures per seconds and Canon EOS 20D Astrophotography can shoot up to 5 pictures per seconds.

Camera FPS (Frames per second)
Nikon D780 12
Canon EOS 20D Astrophotography 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 D780. Unfortunately Canon EOS 20D Astrophotography 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 D780 weighs 840 gr (equal to 1.85 lb) which is 9% heavier than Canon EOS 20D Astrophotography and its 770 gr (or 1.7 lb).

Camera Weight
Nikon D780 840 gr
1.85 lb
Canon EOS 20D Astrophotography 770 gr
1.7 lb

Nikon D780 vs Canon EOS 20D Astrophotography Specs

Below you will find the complete and detailed technical specs for both Nikon D780 and Canon EOS 20D Astrophotography, 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 D780
Canon EOS 20D Astrophotography
Name Nikon D780 Canon EOS 20D Astrophotography
Manufacturer Nikon Canon
Release Date and Price
Nikon D780
Canon EOS 20D Astrophotography
Release Year 2020 2005
Release Date 2020-01-07 2005-06-01
MSRP 2299 USD 1499 USD
Buy it today
Camera Type
Nikon D780
Canon EOS 20D Astrophotography
Camera Type DSLR DSLR
Sensor
Nikon D780
Canon EOS 20D Astrophotography
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 BSI-CMOS CMOS
Resolution 6048 x 4024 pixels 3504 x 2336 pixels
Megapixels 25 MP 8,2 MP
Image Processor EXPEED 6 DIGIC 2
Image
Nikon D780
Canon EOS 20D Astrophotography
ISO Range 100 - 51200 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 D780
Canon EOS 20D Astrophotography
Autofocus Motor Yes Yes
Autofocus Contract Detect (sensor)
Phase Detect
Multi Area
Center
Selective Single Point
Tracking
Single
Continuous
Touch
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 D780
Canon EOS 20D Astrophotography
Articulated LCD Tilting Fixed
Screen size 3.2” 1.8”
Screen dots 2359000 118000
Touch screen Yes No
Screen type TFT LCD 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 0 N/A
Photography features
Nikon D780
Canon EOS 20D Astrophotography
Frames per second 12 fps 5 fps
Minimum Shutter Speed 900 seconds 30 seconds
Maximum Shutter Speed 1/8000 seconds 1/8000 seconds
Built-in Flash No Yes
Built-in Flash Range N/A 12 meters
External Flash Yes Yes
Self-Timer Yes Yes
Time-lapse Yes Yes
Metering modes Multi
Center Weighted
Highlight Weighted
Spot
Multi
Center Weighted
Partial
Exposure Compensation +/- 5 (at 1/3 EV, 1/2 EV steps) +/- 2 (at 1/3 EV, 1/2 EV steps)
Videography features
Nikon D780
Canon EOS 20D Astrophotography
Video recording Yes No
Video format MPEG4
H.264
N/A
Video resolution 1920 x 1080
3840 x 2160
N/A
Built-in Microphone No No
Built-in Speakers No No
Storage
Nikon D780
Canon EOS 20D Astrophotography
Memory Card SD/SDHC
Compact Flash
Connectivity
Nikon D780
Canon EOS 20D Astrophotography
HDMI Output Yes No
Microphone Port Yes No
Headphone Port Yes No
Wireless Yes
Built-in (802.11b/g/n + Bluetooth 4.1)
No
Remote Control Yes (via wired, wireless or smartphone) Yes (N3 connector)
GPS No No
Body & Dimensions
Nikon D780
Canon EOS 20D Astrophotography
Enviromentally sealed Yes No
Battery Battery Pack Battery Pack
Battery Details EN-EL15b lithium-ion battery & charger
Battery Pack BP-511A
Battery Life (CIPA) 2260 shots 1000 shots
Width 144 mm 144 mm
Height 116 mm 106 mm
Depth 76 mm 72 mm
Weight 840 gram 770 gram