The Canon EOS Ra Body 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.
Additionally, a 30x live view magnification setting has also been added for improved focusing precision on distant subjects when working with either the EVF or rear LCD.
Beyond these couple distinctions, the EOS Ra and EOS R feature the same set of core features to produce high resolution, well-detailed imagery.
The EOS Ra features a high-resolution 30.3MP full-frame CMOS sensor along with a DIGIC 8 image processor. The combination of these technologies offers a wide sensitivity range up to a native ISO 40000, fast continuous shooting to 8 fps, and UHD 4K30 video recording.
In addition to imaging, the sensor also facilitates an advanced Dual Pixel CMOS AF system, which uses 5655 selectable points for quickly and accurately acquiring focus. This focusing system is also sensitive down to EV -6 for working in impressively dark conditions. The AF system is also perfectly matched to the UHD 4K video recording capabilities, which are also rounded out by Movie Digital IS to minimize camera shake.
The EOS Ra also sports built-in Canon Log gamma for a greater dynamic range, and offers 4K 10-bit 4:2:2 output over HDMI for even greater colour control.
Based on the EOS R, the EOS Ra is an astrophotography-dedicated camera that differs from its general-use sibling in a number of ways to better enable photographing the night sky:
|30.3 MP Full-Frame CMOS Sensor||OLED EVF (3,690,000 dots)|
|A 30.3 megapixel Full Frame Canon CMOS sensor delivers incredible image quality and detail from highlights and shadows||Never take your eyes off the shot thanks to a 3.69 million dot 0.5" OLED Electronic viewfinder which is designed for more immersive shooting|
|Dual Pixel CMOS AF||Wi-FI/NFC & Bluetooth|
|Canon’s Dual Pixel CMOS AF delivers Auto Focus in as little as 0.05 secs with 5655 available AF point positions. Plus, experience smooth AF transitions and exceptional tracking performance in 4K movie mode.||Bluetooth maintains a connection with your phone after initial pairing and switches smartly to Wi-Fi for image download or remote shooting via the Canon Camera Connect app|
|Vari angle LCD||EOS Movie 4K + Full HD|
|The high resolution 2.1 million dot, 3.15” vari-angle LCD screen with full touch control, helps you find new angles, review images and control auto focus with ease||Capture cinematic 4K 30p movies with Canon Log and 10-bit output via HDMI in 4K with 4:2:2 compression for flexible editing and easy colour matching with Cinema EOS cameras.|
|Lens Mount||Canon RF|
|Camera Format||Full-Frame (1x Crop Factor)|
|Pixels||Actual: 31.7 Megapixel
Effective: 30.3 Megapixel
|Maximum Resolution||6720 x 4480|
|Aspect Ratio||1:1, 3:2, 4:3, 16:9|
|Sensor Size||36 x 24 mm|
|Image File Format||JPEG, RAW|
|Image Stabilization||Digital, 5-Axis (Video Only)|