Meh. In his test the DR is similar, maybe a little worse on the a1 than the RIV and R5 . According to them: sharpness is similar across them, High ISO noise he says is similar, but he doesn't go through the ranges, just jumps up to 25600 which is useless anyway IMO. Interestingly enough they claim the stabilization is better on the a1 than all of the others, saying the R5 ties the a1, but his chart says the r5 ties the RIV in 2nd place... so who knows, but bodes well for the a1 I guess. anti-flicker works well.