Richard, the Petzval gains depth at f11 but the field is still curved. I even kicked in more movements to try to get a bit more in initial focus with the petzval but it is very shallow in it's little sharp center. Both the Eidoscope and the Imagon are actually sharp wide open. You see both sharp elements plus the blur of the aberation both at the same time. My focus point was the 2 flowers upper right quadrant in each case. The more I look at the Imagon, the more I think I might have some fun with it.Originally Posted by rrankin
Matt, Tonopah is a bottomless pit of characters missing front teeth that would be fun to photograph. I just need to quit my day job and play full time.