I usally shoot with a number of 42mm bodies or Mirandas , but I do have a Sigma SA9 and SA7 which has most of the features of a N90, not the build quailty. I like the auto bracket, mirror lockup, and matrix metering or spot metering for shooting landscapes. Sometimes I think about a F100 or F5, but for the most part my Sigmas work well as I am not beating them to death.