Astrophotography Showdown: Sony A7 IV vs Canon EOS Ra vs Nikon D810A – Which Captures the Cosmos Best?
The Sony A7 IV uses a 33MP back-illuminated CMOS sensor with ~5.12µm pixels and delivers unusually clean high-ISO performance, with ISO 12,800 showing little noise and star-eater largely mitigated. The Canon EOS Ra modifies its infrared-cut filter to pass roughly four times as much