I talked with B&H this morning and my ES-2 will be delivered tomorrow. While I won't be using it with a D850, it should work well with my D810 for many of the slides I've taken over the years. I'm looking forward to the Contax G2 slides of a pre-crowded Ankor Wat and trip to Rome, the thousands of Nikon F3hp shots from '70s and '80s western road trips and a barge tour of France and a few Nikonos shots from Grand Cayman. I haven't seen any comments on the ES-2 here yet. Anyone have any experience and advice? I have the 60 macro, a good LED light panel and those thousands of slides ready to go.