The Canon EOS Ra is a version of the EOS R that’s been manufactured with an optical IR-cut filter in front of its sensor to optimize it for astrophotography. Key features include:
Optimized for astrophotography
IR-cut filter passes the H-alpha wavelength
30.3MP full-frame CMOS sensor; DIGIC 8 image processor
30x magnification viewing for focusing in Live View
No. Since this is an entirely different physical mount, EF mount lenses won’t natively fit.
However, you can use the EF-EOS R Mount Adapter / Control Ring Mount Adapter available for rent separately to mount EF and EF-S lenses to RF-mount cameras.
Unfortunately not. Canon’s RF-mount system is in no way compatible with their EF-M crop-frame mirrorless lenses.
Aspect Ratio | 1:1, 3:2, 4:3, 16:9 |
Audio File Formats | AAC, Linear PCM (Stereo) |
Audio Recording | Built-In Microphone (Stereo) |
Autofocus Points | Phase Detection: 5655 |
Autofocus Sensitivity | -6 to +18 EV |
Battery | 1x LP-E6N Rechargeable Lithium-Ion, 7.2 VDC, 1865 mAh |
Bit Depth | 14-Bit |
Brand | Canon |
Built-in Flash | No |
Camera Type | Mirrorless |
Connectivity | 3.5mm Microphone, HDMI C (Mini), USB Type-C (USB 3.0) |
Continuous Shooting | Up to 8 fps at 30.3 MP for up to 47 Exposures (RAW) |
Dedicated Flash System | eTTL |
Depth | 3.3" |
Diopter Adjustment | -4 to +2 |
Exposure Compensation | -3 to +3 EV (1/3, 1/2 EV Steps) |
Exposure Control | Auto, 100 to 40000 (Extended: 50 to 102400) |
Exposure Modes | Aperture Priority, Manual, Shutter Priority |
External Flash Connection | Hot Shoe |
External Video-Recording Modes | 4:2:2 10-Bit |
Flash Compensation | -3 to +3 EV (1/3, 1/2 EV Steps) |
Flash Modes | Flash On, Slow Sync |
Focus Type | Auto and Manual Focus |
Focusing Method | Continuous-Servo AF, Manual Focus, Single-Servo AF |
GPS | No |
Height | 3.9" |
Image File Formats | JPEG, RAW |
Image Stabilization | Digital, 5-Axis (Video Only) |
Item Type | Camera |
Maximum Resolution | 6720 × 4480 |
Memory Card Slot | Single Slot: SD/SDHC/SDXC (UHS-II) |
Metering Modes | Center-Weighted Average, Evaluative, Partial |
Metering Range | -3 to 20 EV |
Monitor Resolution | 2,100,000 Dot |
Monitor Size | 3.15" |
Monitor Type | Articulating Touchscreen LCD |
Mount | Canon RF |
Operating Temperature | 32 to 104°F / 0 to 40°C |
Pixels | Actual: 31.7 Megapixel |
Recording Limit | Up to 29 Minutes, 59 Seconds |
Self Timer | 2/10-Second Delay |
Sensor Dimensions | 36 × 24mm |
Sensor Size | Full Frame |
Sensor Type | CMOS |
Shutter Speed | Electronic Front Curtain Shutter |
Video Encoding | NTSC/PAL |
Video Recording Modes | MP4/H.264 |
Viewfinder Coverage | 100% |
Viewfinder Eye Point | 23mm |
Viewfinder Magnification | Approx. 0.71x |
Viewfinder Resolution | 3,690,000 Dot |
Viewfinder Size | 0.5" |
Viewfinder Type | Electronic |
Weight | 1.45 lbs. |
White Balance | Auto, Cloudy, Color Temperature, Custom, Daylight, Flash, Fluorescent (White), Shade, Tungsten |
Width | 5.3" |
Wireless | Wi-Fi |
Aspect Ratio | 1:1, 3:2, 4:3, 16:9 |
Audio File Formats | AAC, Linear PCM (Stereo) |
Audio Recording | Built-In Microphone (Stereo) |
Autofocus Points | Phase Detection: 5655 |
Autofocus Sensitivity | -6 to +18 EV |
Battery | 1x LP-E6N Rechargeable Lithium-Ion, 7.2 VDC, 1865 mAh |
Bit Depth | 14-Bit |
Brand | Canon |
Built-in Flash | No |
Camera Type | Mirrorless |
Connectivity | 3.5mm Microphone, HDMI C (Mini), USB Type-C (USB 3.0) |
Continuous Shooting | Up to 8 fps at 30.3 MP for up to 47 Exposures (RAW) |
Dedicated Flash System | eTTL |
Depth | 3.3" |
Diopter Adjustment | -4 to +2 |
Exposure Compensation | -3 to +3 EV (1/3, 1/2 EV Steps) |
Exposure Control | Auto, 100 to 40000 (Extended: 50 to 102400) |
Exposure Modes | Aperture Priority, Manual, Shutter Priority |
External Flash Connection | Hot Shoe |
External Video-Recording Modes | 4:2:2 10-Bit |
Flash Compensation | -3 to +3 EV (1/3, 1/2 EV Steps) |
Flash Modes | Flash On, Slow Sync |
Focus Type | Auto and Manual Focus |
Focusing Method | Continuous-Servo AF, Manual Focus, Single-Servo AF |
GPS | No |
Height | 3.9" |
Image File Formats | JPEG, RAW |
Image Stabilization | Digital, 5-Axis (Video Only) |
Item Type | Camera |
Maximum Resolution | 6720 × 4480 |
Memory Card Slot | Single Slot: SD/SDHC/SDXC (UHS-II) |
Metering Modes | Center-Weighted Average, Evaluative, Partial |
Metering Range | -3 to 20 EV |
Monitor Resolution | 2,100,000 Dot |
Monitor Size | 3.15" |
Monitor Type | Articulating Touchscreen LCD |
Mount | Canon RF |
Operating Temperature | 32 to 104°F / 0 to 40°C |
Pixels | Actual: 31.7 Megapixel |
Recording Limit | Up to 29 Minutes, 59 Seconds |
Self Timer | 2/10-Second Delay |
Sensor Dimensions | 36 × 24mm |
Sensor Size | Full Frame |
Sensor Type | CMOS |
Shutter Speed | Electronic Front Curtain Shutter |
Video Encoding | NTSC/PAL |
Video Recording Modes | MP4/H.264 |
Viewfinder Coverage | 100% |
Viewfinder Eye Point | 23mm |
Viewfinder Magnification | Approx. 0.71x |
Viewfinder Resolution | 3,690,000 Dot |
Viewfinder Size | 0.5" |
Viewfinder Type | Electronic |
Weight | 1.45 lbs. |
White Balance | Auto, Cloudy, Color Temperature, Custom, Daylight, Flash, Fluorescent (White), Shade, Tungsten |
Width | 5.3" |
Wireless | Wi-Fi |