Real owners lean toward the Sigma 18-50mm F2.8 DC DN: 92% of 36 owners recommend it, vs 82% of 67 for the Canon EOS R8.
Verdicts aggregated from Reddit, enthusiast forums, and YouTube owner comments — affiliate reviews excluded. Sample sizes differ; judge accordingly. How we score
“It does have some faults (short battery life, no IBIS, single card slot), but it is a powerhouse in a small package. I've been nothing but impressed with its performance using the RF50mm F1.8 STM "nifty fifty" lens”— brielkate on Reddit
“Ich habe mit meiner Canon EOS R8 schon mehr als brauchbare Bilder Nachts im Licht einer Straßenlaterne gemacht (allerdings auch mit f1.4). Und dem Autofokus reicht sogar Mondlicht zum Fokussieren aus.”— Gentlemansuchti on Reddit
“I was at a christening today and brought my Canon EOS R8 which proceeded to crap itself and not work for the majority of the day, so… I do not recommend that.”— Opspin on Reddit