Canon EOS 20D Astrophotography vs Canon EOS 77D
This is a full comparison between the cameras Canon EOS 20D Astrophotography and Canon EOS 77D. We compare them by looking at the categories you see below.
Manufacturing
These cameras are both manufactured by Canon.
Canon EOS 20D Astrophotography were released 2005 and Canon EOS 77D was released 2017. That is a 12 years difference. In tech, this period can be of interest since technology is always improving, etc.| Camera | Released |
| Canon EOS 20D Astrophotography | 2005 |
| Canon EOS 77D | 2017 |
Type of camera
Both these cameras are DSLR cameras. No difference there.
Sensors / crop factor
Both these cameras have the same sorts of sensor (called "Canon APS-C") which means that if you compare these cameras side by side the lenses will also have the same experienced focal length. Neither of the cameras has a Full frame sensor which means that you will get a "crop factor" where the camera's sensor size affect the focal length with a multiplier.
| Camera | Focal length, 50mm f/1.8 ** |
| Canon EOS 20D Astrophotography | 80 mm Canon APS-C sensor Crop factor/focal length multiplier by * 1.6 |
| Canon EOS 77D | 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 (Canon)
Resolution
Canon EOS 20D Astrophotography has a 8,2 MP (Megapixels) resolution while Canon EOS 77D has 24 MP. If we break down this in more detail this is the data behind the numbers:
| Camera | Megapixels |
| Canon EOS 20D Astrophotography |
8,2 MP
8185344 pixels 3504 x 2336 |
| Canon EOS 77D |
24 MP
24000000 pixels 6000 x 4000 |
Canon EOS 77D has a 193 % 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
Canon EOS 77D has a larger ISO-range than Canon EOS 20D Astrophotography. Canon EOS 77D has an ISO range that stretches from 100 to 25600 while Canon EOS 20D Astrophotography has 100 to 3200.
| Camera | ISO Range |
| Canon EOS 20D Astrophotography | 100-3200 |
| Canon EOS 77D | 100-25600 |
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 Canon EOS 20D Astrophotography
Lens compatibility chart for Canon EOS 77D
Pictures per second
Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Canon EOS 20D Astrophotography can shoot up to 5 pictures per seconds and Canon EOS 77D can shoot up to 6 pictures per seconds.
| Camera | FPS (Frames per second) |
| Canon EOS 20D Astrophotography | 5 |
| Canon EOS 77D | 6 |
Ability to record movies
It is becoming more and more popular to record movies with digital cameras.
It is only one of these two cameras that support recording movies and movie clips and that is Canon EOS 77D. Sadly, the Canon EOS 20D Astrophotography does not support this.
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.
Canon EOS 20D Astrophotography weighs 770 gr (equal to 1.7 lb) which is 43% heavier than Canon EOS 77D and its 540 gr (or 1.19 lb).
| Camera | Weight |
| Canon EOS 20D Astrophotography | 770 gr 1.7 lb |
| Canon EOS 77D | 540 gr 1.19 lb |
Canon EOS 20D Astrophotography vs Canon EOS 77D Specs
Below you will find the complete and detailed technical specs for both Canon EOS 20D Astrophotography and Canon EOS 77D, 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 |
Canon EOS 20D Astrophotography |
Canon EOS 77D |
| Name | Canon EOS 20D Astrophotography | Canon EOS 77D |
| Manufacturer | Canon | Canon |
Release Date and Price |
Canon EOS 20D Astrophotography |
Canon EOS 77D |
| Release Year | 2005 | 2017 |
| Release Date | 2005-06-01 | 2017-02-15 |
| MSRP | 1499 USD | 899 USD |
| Buy it today |
|
|
Camera Type |
Canon EOS 20D Astrophotography |
Canon EOS 77D |
| Camera Type | DSLR | DSLR |
Sensor |
Canon EOS 20D Astrophotography |
Canon EOS 77D |
| Sensor Size | APS-C (approx 22.3 x 14.9 mm) | APS-C (approx 22.3 x 14.9 mm) |
| Sensor Type | CMOS | CMOS |
| Resolution | 3504 x 2336 pixels | 6000 x 4000 pixels |
| Megapixels | 8,2 MP | 24 MP |
| Image Processor | DIGIC 2 | DIGIC 7 |
Image |
Canon EOS 20D Astrophotography |
Canon EOS 77D |
| ISO Range | 100 - 3200 | 100 - 25600 |
| White Balance Presets | 6 | 6 |
| Custom White Balance | Yes | Yes |
| Image Stabilization | No | No |
| Image Stabilization CIPA Rating | 0 stops | 0 stops |
| Uncompressed format | RAW | RAW |
Optics & Focus |
Canon EOS 20D Astrophotography |
Canon EOS 77D |
| Autofocus Motor | Yes | Yes |
| Autofocus |
Phase Detect Multi Area Selective Single Point Single Continuous |
Contract Detect (sensor) Phase Detect Multi Area Center Selective Single Point Tracking Single Continuous Touch Face Detection LiveView |
| Focus Points | 9 | 45 |
| Lens Mount |
Canon EF Canon EF-S See Compatible Lenses |
Canon EF Canon EF-S See Compatible Lenses |
| Focal Length Multiplier |
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 |
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 |
Canon EOS 20D Astrophotography |
Canon EOS 77D |
| Articulated LCD | Fixed | Fully articulated |
| Screen size | 1.8” | 3” |
| Screen dots | 118000 | 1040000 |
| Touch screen | No | Yes |
| Screen type | N/A | TFT LCD |
| Live view | No | Yes |
| Viewfinder Type | Optical (pentaprism) | Optical (pentamirror) |
| Viewfinder Coverage | 95% | 95% |
| Viewfinder Magnification | 0.9× (0.56× 35mm equiv.) | 0.82× (0.51× 35mm equiv.) |
| Viewfinder Resolution | N/A | 0 |
Photography features |
Canon EOS 20D Astrophotography |
Canon EOS 77D |
| Frames per second | 5 fps | 6 fps |
| Minimum Shutter Speed | 30 seconds | 30 seconds |
| Maximum Shutter Speed | 1/8000 seconds | 1/4000 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 Partial |
Multi Spot Partial Average |
| Exposure Compensation | +/- 2 (at 1/3 EV, 1/2 EV steps) | +/- 5 (at 1/3 EV, 1/2 EV steps) |
Videography features |
Canon EOS 20D Astrophotography |
Canon EOS 77D |
| Video recording | No | Yes |
| Video format | N/A |
MPEG4 H.264 |
| Video resolution | N/A |
1280 x 720 1920 x 1080 |
| Built-in Microphone | No | Yes |
| Built-in Speakers | No | Yes |
Storage |
Canon EOS 20D Astrophotography |
Canon EOS 77D |
| Memory Card |
Compact Flash |
SD/SDHC |
Connectivity |
Canon EOS 20D Astrophotography |
Canon EOS 77D |
| HDMI Output | No | Yes |
| Microphone Port | No | Yes |
| Headphone Port | No | No |
| Wireless | No |
Yes Built-in ( Includes Bluetooth LE and NFC) |
| Remote Control | Yes (N3 connector) | Yes (via smartphone or Bluetooth remote) |
| GPS | No |
Yes Optional |
Body & Dimensions |
Canon EOS 20D Astrophotography |
Canon EOS 77D |
| Enviromentally sealed | No | No |
| Battery | Battery Pack | Battery Pack |
| Battery Details |
Battery Pack BP-511A
|
LP-E17 lithium-ion battery & charger
|
| Battery Life (CIPA) | 1000 shots | 600 shots |
| Width | 144 mm | 131 mm |
| Height | 106 mm | 100 mm |
| Depth | 72 mm | 76 mm |
| Weight | 770 gram | 540 gram |