Developed specifically for those looking to photograph the night sky, the Canon EOS Ra is a modified version of the original EOS R that incorporates an optical IR cut filter in front of the sensor for photographing distant nebulae and other astronomical phenomena with utmost clarity. By updating the EOS R’s design with a dedicated filter, the EOS Ra provides approximately 4x improved transmission and sensitivity to H-alpha (656.28nm) wavelengths for depicting nebulae and other subjects without unwanted infrared contamination for greater color neutrality. 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 new IR filter array in front of the sensor, which enables four times as much Hydrogen Alpha light to be transmitted, compared to the normal EOS R. This enables the camera to capture the distinct reddish color of the nebula.
Shoot 4K video and 4K timelapse sequences of the night sky using the EOS Ra and take advantage of incredible levels grading possibilities from 10bit Canon Log.
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:
- An optical IR cut filter has been placed in front of the CMOS sensor to allow specific transmission characteristics to better enable capturing nebulae and distant galaxies that emit light at the H-alpha wavelength, or 656.28nm. By filtering at this spectrum, 4x improved transmission allows more accurate photography of reddish, diffuse nebulae and other astronomical phenomena in a clearer, more brilliant manner, void of the IR attenuation associated with traditional hot mirrors and other IR-blocking technologies on most cameras.
- High-magnification viewing of 30x and 5x is possible using either the rear vari-angle LCD or OLED EVF for clearer, more precise focusing on small and distant subjects, such as stars.
- The same white balance presets remain as the standard EOS R; however color reproduction and accuracy may vary depending on lighting conditions and the resulting images may take on a reddish cast. As such, the EOS Ra is not recommended for general photography applications.
Wherever you are, connect the EOS Ra to your smartphone for remote shooting and image review. Become part of the astrophotography community by sharing your best skyscapes and space discoveries via the Canon Camera Connect app.