Canon EOS Ra Full Frame Mirrorless Camera for Astrophotography

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Canon EOS Ra Full Frame Mirrorless Camera for Astrophotography

Out of stock
  • 30x magnification
  • A 30.3 megapixel Full Frame Canon CMOS sensor delivers incredible image quality and detail from highlights and shadows
  • 4K Time-Lapse Shooting
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The Full Frame Mirrorless Camera For Astrophotography

The EOS Ra has been created to enhance transmission of Hα rays (wavelength 656.28 nm), making it roughly four times more sensitive than the EOS R to capture high-precision images of the deep-red wavelengths emitted by nebulae, without any special camera alterations.

EOS Ra Specifications


Digital single-lens non-reflex AF/AE camera

Recording media:

SD/SDHC/SDXC memory card

* UHS-II and UHS-I cards supported.

Image sensor size:

Approx. 36.0x24.0 mm

Compatible lenses:

Canon RF and EF lens product groups

* EF/EF-S lenses supported with a mount adapter attached (EF-M lenses not supported)

Effective angle of view:

With RF/EF lenses: Approximately equivalent to the indicated focal length

With EF-S lenses: Approx. 1.6 times the indicated focal length

Lens mount:

Canon RF mount

Image Sensor


CMOS sensor (supports Dual pixel CMOS AF)

Effective pixels:

Approx. 30.3 megapixels

* Rounded to the nearest 100,000.

Astrophotography Features:

Enhanced transmission of Hα rays (wavelength 656.28 nm)

Aspect ratio:


Dust deletion:

Auto/Manual, Appending Dust Delete Data

Recording System

Recording format:

Design rule for Camera File System (DCF) 2.0

Image type:

JPEG, RAW (CR3, a Canon 14-bit RAW format)

RAW+JPEG simultaneous recording possible

Pixels recorded:

L (Large): Approx. 30.1 megapixels (6720x4480)

M (Medium): Approx. 13.3 megapixels (4464x2976)

S1 (Small 1): Approx. 7.5 megapixels (3360x2240)

S2 (Small 2): Approx. 3.8 megapixels (2400x1600)

RAW: Approx. 30.1 megapixels (6720x4480)

C-RAW: Approx. 30.1 megapixels (6720x4480)

* Rounded to the nearest 100,000.

Dual Pixel RAW setting:


Crop/aspect ratio:

Cropped shooting and an aspect ratio can be set: Full-frame, Approx. 1.6x (crop), 1:1 (aspect ratio), 4:3 (aspect ratio), 16:9 (aspect ratio)

Folder creation and selection:


File name:

Preset code, User setting 1, User setting 2

File numbering:

Continuous, Auto reset, Manual reset

Image Processing During Shooting

Picture Style:

Auto, Standard, Portrait, Landscape, Fine Detail, Neutral, Faithful, Monochrome, User Defined 13

White balance:

Auto (Ambience priority), Auto (White priority), Preset (Daylight, Shade, Cloudy, Tungsten light, White fluorescent light, Flash), Custom, Color temperature setting (approx. 250010000 K)

White balance correction and white balance bracketing features provided

*Flash color temperature information transmission possible

Automatic image brightness correction:

Auto Lighting Optimizer provided

Noise reduction:

Applicable to high ISO speed shots and long exposures

Highlight tone priority:


Lens aberration correction:

Peripheral illumination correction, Distortion correction, Digital Lens Optimizer, Chromatic aberration correction, Diffraction correction


Focus method:

Dual pixel CMOS AF

AF method:

Face+Tracking, 1-point AF, Expand AF area (vertically/horizontally), Expand AF area (around), Zone AF, Large Zone AF (vertical), Large Zone AF (horizontal)

Available AF point positions:

Max. 5,655

Available AF areas when automatically selected:


Touch & drag AF:


Magnified view:

Approx. 5x/10x

Focus distance display:

With RF lenses

Manual focus (MF):

MF peaking, focus guide

[Still photo shooting]

AF operation:

One-Shot AF, Servo AF

Auto AF operation switching:

In Scene Intelligent Auto mode; can be set from a menu

Eye Detection AF:


Continuous AF:


AF area:

Horizontal: Approx. 88%, Vertical: Approx. 100%

Horizontal: Approx. 80%, Vertical: Approx. 80%

* Varies depending on factors such as the lens and aspect ratio used

Focusing brightness range:

EV -6 to 18 (at room temperature, ISO 100, One- Shot AF)

Servo AF characteristics:

Tracking sensitivity, Acceleration/deceleration tracking, and AF point auto switching

AF-assist beam:

Built-in LED lamp

[Movie recording]

AF area:

[4K] Horizontal: Approx. 80%, Vertical: Approx. 100%

[Full HD/HD] Horizontal: Approx. 88%, Vertical: Approx. 100%

Focusing brightness range:

EV -4 to 18 (at room temperature, ISO 100, One- Shot AF)

Movie Servo AF:


Movie Servo AF characteristics:

Tracking sensitivity, AF speed

Exposure Control

Metering mode:

Real-time metering using the image sensor

384-zone (24x16) metering

Still photo shooting:

Evaluative metering (linked to all AF points)

Partial metering (approx. 6.1% of screen, at center)

Spot metering (approx. 2.7% of screen, at center)

Center-weighted average metering

Movie recording:

Center-weighted average and Evaluative metering with the image sensor

* Automatically set by the focus method

Focusing brightness range:

Still photo shooting: EV -3 to 20 (at room temperature, ISO 100)

Movie recording: EV -1 to 20 (at room temperature, ISO 100, center-weighted average metering)


Electronically-controlled, focal-plane shutter

Shutter speed:

1/8000 sec. to 30 sec. (total shutter speed range; available range varies by shooting mode), Bulb, X- sync at 1/200 sec.

* Setting range differs when recording movies

Drive System

Drive mode:

Single shooting, High-speed continuous shooting, Low- speed continuous shooting, Self-timer: 10 sec./remote control, Self-timer: 2 sec./remote control

Continuous shooting speed:

High-speed continuous shooting: Max. approx. 8.0 shots/sec.

* Lower continuous shooting speed when reducing flicker, when set to Dual Pixel RAW or Servo AF, or during flash photography.

* The continuous shooting speed for high-speed continuous shooting may be lower, depending on conditions such as these: battery level, temperature, flicker reduction, Dual Pixel RAW shooting, Silent LV shooting, shutter speed, aperture, subject conditions, brightness, AF operation, type of lens, use of flash, and shooting settings.

Low-speed continuous shooting: Max. approx. 3.0 shots/sec.

Max. burst:

JPEG Large/Fine: Approx. 100 shots (Approx. 100 shots)

RAW: Approx. 34 shots (Approx. 47 shots)

RAW+JPEG Large/Fine: Approx. 34 shots (Approx. 39 shots)

* Measured under conditions and with an SD card conforming to Canon testing standards (32 GB standard/UHS-II card, High-speed continuous shooting, Full-frame still photo cropping/aspect ratio, ISO 100, without Dual Pixel RAW, Standard Picture Style).

* Figures in parentheses are the number of shots when a Canon’s standard testing UHS-II SD card is used.

High-speed display:


External Speedlite

Compatible Speedlites:

EL/EX series Speedlites

Flash metering:

E-TTL II autoflash

Automatic firing:

Available with Speedlites equipped with this feature

Safety FE:


Flash exposure compensation:

±3 stops in 1/3- or 1/2-stop increments

FE lock:


Continuous shooting priority mode:

Available with Speedlites equipped with this feature

PC terminal:

Not provided

Flash control:

Flash function settings, Flash Custom Function settings

Movie Recording

Recording format:



MPEG-4 AVC/H.264, variable (average) bit rate


For editing (ALL-I): linear PCM

Standard (IPB), Light (IPB): AAC

Movie recording size:

4K (3840x2160), Full HD (1920x1080), HD (1280x720)

High Frame Rate movies: HD

HDR movies:

With RF/EF lenses: Full HD

With EF-S lenses and movie cropping: HD

Time-lapse movies: 4K/Full HD

Frame rate:

119.9p/59.94p/29.97p/24.00p/23.98p (with NTSC)

100.0p/50.00p/25.00p/24.00p (with PAL)

* 119.9p/100.0p used for High Frame Rate movies

Compression method:

For editing (ALL-I), Standard (IPB), Light (IPB)

Bit rate/Card performance requirements (writing/reading speed):

4K (29.97p/25.00p/24.00p/23.98p)/For editing (ALL-I)

: Approx. 480 Mbps/UHS-II, Video Speed Class 60 or higher

4K (29.97p/25.00p/24.00p/23.98p)/Standard (IPB)

: Approx. 120 Mbps/UHS-I, UHS Speed Class 3 or higher

Full HD (59.94p/50.00p)/For editing (ALL-I)

: Approx. 180 Mbps/UHS-I, UHS Speed Class 3 or higher

Full HD (59.94p/50.00p)/Standard (IPB)

: Approx. 60 Mbps/SD Speed Class 10 or higher

Full HD (29.97p/25.00p/24.00p/23.98p)/For editing (ALL-I)

: Approx. 90 Mbps/UHS-I, UHS Speed Class 3 or higher

Full HD (29.97p/25.00p/24.00p/23.98p)/Standard (IPB)

: Approx. 30 Mbps/SD Speed Class 4 or higher

Full HD (29.97p/25.00p)/Light (IPB)

: Approx. 12 Mbps/SD Speed Class 4 or higher

HD (119.9p/100.0p)/For editing (ALL-I)

: Approx. 160 Mbps/UHS-I, UHS Speed Class 3 or higher

HD (59.94p/50.00p)/For editing (ALL-I)

: Approx. 80 Mbps/SD Speed Class 10 or higher

HD (59.94p/50.00p)/Standard (IPB)

: Approx. 26 Mbps/SD Speed Class 4 or higher

HD (29.97p/25.00p)/Standard (IPB)

: Approx. 13 Mbps/SD Speed Class 4 or higher

Customization Features

Custom Functions:

19 functions, customization of button, dial, and M-Fn bar operation

Custom shooting modes:

Still photo C1/C2/C3 modes, movie C1/C2/C3 modes

My Menu:

Up to 5 screens can be registered

Copyright information:

Text entry and appending possible

IPTC information:

Can be appended


Digital terminal:

SuperSpeed USB (USB 3.1 Gen 1) equivalent, USB


Computer communication, charging with USB Power Adapter PD-E1

HDMI mini OUT terminal:

Type C (auto switching of resolution)

External microphone IN terminal:

3.5 mm diameter stereo mini-jack

Directional Stereo Microphone DM-E1 or commercially-available external microphone connectable

Remote control terminal:

Compatible with Remote Switch RS-60E3

Wireless remote control:

Compatible with Wireless Remote Control BR- E1 (via Bluetooth)

Wireless Features


Standards compliance:

IEEE 802.11b/g/n

Transmission method:

DS-SS modulation (IEEE 802.11b), OFDM modulation (IEEE 802.11g/n)

Transmission frequency (central frequency):

Frequency: 2412 to 2462 MHz

Channels: 111

Connection method:

Camera access point mode, infrastructure*

* Wi-Fi Protected Setup supported


Authentication method: Open system, Shared key, WPA/WPA2-PSK

Encryption: WEP, TKIP, AES

Compatible devices/services:

Smartphones, computers, Wi-Fi printers, Web services


Standards compliance:

Bluetooth Specification Version 4.1 compliant

(Bluetooth low energy technology)

Transmission method:

GFSK modulation

Compatible devices:

Smartphones, wireless remote controls



Battery Pack LP-E6N/LP-E6, quantity 1

*AC power usable with household power outlet accessories.

*USB Power Adapter PD-E1 enables in-camera charging of LP-E6N.

Battery information:

Power source, Battery level, Shutter count, Recharge performance, Battery registration possible

Number of possible shots:

Approx. 370 shots at room temperature (+23°C/73°F), approx. 350 shots at low temperatures (0°C/32°F)

*Using a fully charged Battery Pack LP-E6N, with display set to [Smooth]

Movie recording time available:

Total approx. 2 hr. 20 min. at room temperature (+23°C/73°F)

Total approx. 2 hr. 10 min. at low temperatures (0°C/32°F)

*With a fully-charged Battery Pack LP-E6N, Movie Servo AF enabled, and 4K/Full HD set.

Dimensions and Weight

Dimensions (WxHxD):

Approx. 135.8x98.3x84.4 mm / 5.35x3.87x3.32 in.

W eight:

Approx. 660 g / 23.28 oz. (including battery pack and card)/Approx. 580 g / 20.46 oz. (body only)

Operating Environment

Working temperature range:

040 °C (32104 °F)

  • All the data above is based on Canon's testing standards and CIPA (Camera & Imaging Products Association) testing standards and guidelines. 
  • Dimensions and weight listed above are based on CIPA Guidelines (except weight for camera body only). 
  • Product specifications and the exterior are subject to change without notice. 
  • If a problem occurs with a non-Canon lens attached to the camera, consult the respective lens manufacturer.