I owned a 90 Elmarit, 90 Cron and 80 Lux at the same time, some time ago, and they are all three great. The Elmarit was most uniformly good, the 90 Cron add a little mood at a loss of a little performance, and the 80 Lux did the same to a much greater extent. The 80 Lux is shockingly good stopped down a few stops, which is what made it the last lens that I sold off, of the three.