i didn’t notice that the rx-100 has an f/1.8 lens. that goes a long way on low light performance.
i just received the EOS-M and the low-light PQ seems similar to the 60D, which is to say, not spectacular. but i have been spoiled by the 5d3. too bad i did not see this post before pulling the trigger; 1/2 the reason i wanted to try the EOS-M was for concerts.
i noticed that the speedlite 90ex produces an annoying whine in the video when it’s left powered up. i’ll have to remember to turn it off when shooting video.