Here is a recent Canon EOS Ra review which the modified version of EOS R camera dedicated to astrophotography.
Canon has modified the IR filter in front of the full-frame sensor, to allow the EOS Ra to capture four times the amount of hydrogen alpha rays (656nm wavelength) compared to the standard EOS R camera. Canon EOS Ra also offers a 30x magnification option in the EVF and in Live View, a significant increase from the 10x magnification found in the standard EOS R.
AstroBackyard channel published a Canon EOS Ra review on a road trip to see if it is worth for astrophotographer. The Canon EOS Ra review for astrophotography used a Canon RF 85mm F/1.2L lens under semi-dark skies.
Canon EOS Ra key features
- Optimized for Astrophotography
- IR-Cut Filter Passes H-Alpha Wavelength
- 30x Magnification for Focus in Live View
- 30.3MP Full-Frame CMOS Sensor
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.
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