Canon unveils the EOS Ra, a full-frame mirrorless astrophotography camera

Canon very quietly today released a dedicated astrophotography version of its EOS R camera, the EOS Ra. Much like the Nikon D810a and Canon's own 60Da, the EOS Ra has been modified to better capture celestial objects in the night sky, but aside from that remains unchanged from its more conventional counterpart. Specifically, Canon has removed the IR filter in front of the full-frame sensor, which will allow as much as four times the amount of hydrogen alpha rays (656nm wavelength) to hit the sen...