Canon EOS 20Da DSLR Camera
The Canon EOS 20Da is a 8MP APS-C DSLR camera — known for its Astrophotography-Optimized Sensor and 8MP APS-C CMOS Sensor. Check GearFocus for current availability, with buyer protection on every purchase.
Canon EOS 20Da DSLR Camera
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Overview — Canon EOS 20Da
Key Features — Canon EOS 20Da
Astrophotography-Optimized Sensor: The 20Da features a modified low-pass filter that passes hydrogen-alpha (Hα) wavelengths at roughly three times the sensitivity of the standard EOS 20D, making it far more capable of capturing emission nebulae and other deep-sky objects.
8MP APS-C CMOS Sensor: Delivers a maximum resolution of 3504x2336 pixels, sufficient for detailed astrophotography crops and standard print output.
DIGIC II Image Processor: Handles noise reduction and image processing, with a dedicated long-exposure noise reduction mode particularly useful for extended astrophotography exposures.
ISO 100–3200 Range: Provides the sensitivity headroom needed to record faint deep-sky objects under dark skies without excessive exposure times.
3fps Burst Mode: Supports sequential shooting for planetary imaging stacks or terrestrial use.
9-Point Phase Detection AF: Covers the frame with nine AF points for quick and reliable focus acquisition during daytime or terrestrial shooting.
Specifications — Canon EOS 20Da
| Spec | Detail |
|---|---|
| Type | DSLR |
| Sensor | APS-C |
| Resolution | 8MP |
| Processor | DIGIC II |
| ISO Range | 100 – 3200 |
| AF System | Phase Detection |
| AF Points | 9 points |
| Max Photo Resolution | 3504x2336 |
| Burst Rate | 5 fps |
| Image Stabilization | None |
| Display | 1.8 inches Fixed LCD |
| Display Resolution | 118,000 dots |
Description — Canon EOS 20Da
The Canon EOS 20Da is a purpose-built DSLR aimed at astrophotographers who need a camera optimized for capturing astronomical subjects. The 8MP APS-C sensor works with the DIGIC II image processor to deliver maximum stills resolution of 3504x2336 pixels. An ISO range of 100–3200 provides the sensitivity needed for long-exposure night sky work.
The 9-point Phase Detection autofocus system handles focusing duties, while the Optical Pentaprism viewfinder with 95% coverage ensures accurate framing. Burst shooting reaches 5 fps for sequential capture. Color profile support includes both Standard and Adobe RGB, making the 20Da a practical choice for photographers who require a wider gamut for scientific documentation or printing.
The magnesium alloy body measures 144 x 106 x 71 mm and weighs 770g. Image review is handled by a fixed 1.8-inch, 118,000-dot LCD. The BP-511A battery delivers approximately 700 shots per charge, and storage relies on CompactFlash media.
Connectivity includes USB, and the flash system supports Canon E-TTL.
Pros — Canon EOS 20Da
- ✓Dedicated astrophotography design with an 8MP APS-C sensor and DIGIC II processing
- ✓ISO range extends to 3200, providing sensitivity headroom for low-light astronomical imaging
- ✓Burst mode reaches up to 5 fps, useful for capturing image sequences
Cons — Canon EOS 20Da
- ✗No video recording capability — videoSpecs fields are all null
- ✗No weather sealing, making outdoor night-sky sessions in damp conditions risky
- ✗No Wi-Fi or Bluetooth connectivity for remote control or wireless image transfer
Videos — Canon EOS 20Da
$50 DSLR! ft. Canon 20D — Steven Heise